Answers
Given equation is
[tex] \sqrt[3]{x {}^{2} - 7 } = \sqrt[3]{2x + 1} [/tex]
to solve this equation we first need to cube both the sides . As this would remove the cube root on both the sides ,
[tex]\longrightarrow (\sqrt[3]{x^2-7})^3 = (\sqrt[3]{2x+1})^3[/tex]
This would become ,
[tex]\longrightarrow x^2-7=2x+1 \\[/tex]
[tex]\longrightarrow x^2-2x-7-1=0\\[/tex]
[tex]\longrightarrow x^2-2x-8=0\\[/tex]
[tex]\longrightarrow x^2 -4x +2x -8=0\\[/tex]
[tex]\longrightarrow x(x-4)+2(x-4)=0\\ [/tex]
[tex]\longrightarrow (x+2)(x-4)=0\\[/tex]
[tex]\longrightarrow \underline{\underline{ x = 4,-2}} [/tex]
And we are done!
Answer:
[tex]\textsf{To solve the given equation, $\boxed{\sf cube}$ both sides}.[/tex]
Step-by-step explanation:
Given equation:
[tex]\sqrt[3]{x^2-7} =\sqrt[3]{2x+1}[/tex]
[tex]\textsf{Apply exponent rule} \quad \sqrt[n]{a}=a^{\frac{1}{n}}:[/tex]
[tex]\implies (x^2-7)^{\frac{1}{3}}=(2x+1)^{\frac{1}{3}}[/tex]
Cube both sides of the equation:
[tex]\implies \left( (x^2-7)^{\frac{1}{3}}\right)^3= \left((2x+1)^{\frac{1}{3}}\right)^3[/tex]
[tex]\textsf{Apply exponent rule} \quad (a^b)^c=a^{bc}:[/tex]
[tex]\implies (x^2-7)^{\frac{3}{3}}=(2x+1)^{\frac{3}{3}}[/tex]
[tex]\implies (x^2-7)^{1}=(2x+1)^{1}[/tex]
[tex]\textsf{Apply exponent rule} \quad a^1=a:[/tex]
[tex]\implies x^2-7=2x+1[/tex]
Subtract 2x from both sides:
[tex]\implies x^2-2x-7=1[/tex]
Subtract 1 from both sides:
[tex]\implies x^2-2x-8=0[/tex]
Rewrite -2x as (-4x + 2x):
[tex]\implies x^2-4x+2x-8=0[/tex]
Factor the first two terms and the last two terms separately:
[tex]\implies x(x-4)+2(x-4)=0[/tex]
Therefore:
[tex]\implies (x+2)(x-4)=0[/tex]
Apply the zero-product property:
[tex]x+2=0 \implies x=-2[/tex]
[tex]x-4=0 \implies x=4[/tex]
Related Questions
Please help me with this, it'll clear up this test I'm about to take today.
When you're graphing a function, and its inverse, there is a table where you list the x and y factors. I know how you're supposed to solve for the y coordinate, by plugging in the x factor into the function and solving it for y. However, how do you know what your x factors are going to be?
Answers
Step-by-step explanation:
We want to identify how to determine the x-factors for the graph of a function.
On some occasions, the x values for the function will be provided for you to solve for the y values. but on other occasions, the x values are not provided and you have to decide them yourself.
For a linear function, most times, you can pick values within any range of values, e.g from 0 to 5, or 2, 4, 6, 8, 10. Since it is a linear function, it will eventually result in a straight line that contains all other points.
For a quadratic function, the best practice is to pick points around the vertex of the function. The vertex of a function is either the minimum or maximum point of the function.
For example, if the vertex of a quadratic function is (4, 10), the x-coordinate of the vertex is 4. To pick your points, pick points that are some values below 4 and some values above 4, like 2, 3, 4, 5, 6 or 0, 2, 4, 6, 8 That way, you get points that are on either side of the vertex and that will make your plot easier.
Hope that helps!
Which of the followings have infinitely many solutions. Select all that
apply.
2x = 3x - X
3x = 3(2 + x)
4×=×+4
-2x = -X-2
×=1=2×-(×+1)
Answers
Option C and Option D has infinite number of solutions
C. 3x + 2(x - 2) + 6 = 2(2x + 3) + x - 4D. 4(x + 2) + x + 1 = 2x - 3 + 3(x + 4) What is defined as the solution of the equation?Given that we must find equations with an infinite number of solutionsWe have infinite solutions if we end up using the same term on the both sides of a equal sign, including such 4 = 4 or 4x = 4x.There are no solutions if we end up with distinct numbers along both side of the equal sign as in 4 = 5.Option A: -2(x - 2) + 3x = x - 4
Simplify the equation;
-2x + 4 + 3x = x - 4
x + 4 = x - 4
LHS ≠ RHS
Thus, equation does not have infinite solutions.
Option B: 2x + 4(x - 1) = 3(2x + 1) - 2(x - 1)
Simplify the equation;
2x + 4x - 4 = 6x + 3 - 2x + 2
6x - 4 = 4x + 5
6x - 4x = 5 + 4
2x = 9
Obtained equation has only one solution.
Thus, equation does not have infinite solutions.
Option C: 3x + 2(x - 2) + 6 = 2(2x + 3) + x - 4
Simplify the equation;
3x + 2x - 4 + 6 = 4x + 6 + x - 4
5x + 2 = 5x + 2
LHS =RHS
Thus, this equation has infinite solutions.
Option D: 4(x + 2) + x + 1 = 2x - 3 + 3(x + 4)
Simplify the equation;
4x + 8 + x + 1 = 2x - 3 + 3x + 12
5x + 9 = 5x + 9
LHS =RHS
Thus, this equation has infinite solutions.
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The correct question is-
Which equations have an infinite number of solutions?
Select all that apply.
A -2(x - 2) + 3x = x - 4
B 2x + 4(x - 1) = 3(2x + 1) - 2(x - 1)
C 3x + 2(x - 2) + 6 = 2(2x + 3) + x - 4
D 4(x + 2) + x + 1 = 2x - 3 + 3(x + 4)
can you help me on this problem
Answers
Answer/Step-by-step explanation:
h - 4
---------- = k
j
h - 4
---------- = k( j )
j( j )
h - 4 = jk
÷k ÷k
--------------------
h - 4 h 4
------- = j or j = ---- - ----
k k k
I hope this helps!
Use a calculator to estimate the value of the following. Round to the nearest ten-thousandth.sin 84.1°
Answers
Given
[tex]\sin 84.1^o[/tex]Calculating,
[tex]\sin 84.1^o=0.9947[/tex]Rounding off to ten-thousands place,
[tex]\sin 84.1^o=0.995[/tex]The answer is 0.995
2. Evaluate:
Suppose you want to buy something for $60, and you have $15 saved up so far. Then your grandmother calls and says she will chip in for your purchase. She doesn’t tell you the amount of money she will give you yet, so you just consider it x dollars.
Answers
The equation will be 15+x=60 as the definition of equation says, "A mathematical statement known as an equation is made up of two expressions joined together by the equal sign(=)".
What is equation?A mathematical statement known as an equation is made up of two expressions joined together by the equal sign. In mathematics, an equation is an expression or a statement that consists of two algebraic expressions that have the same value and are separated from one another by the equal symbol. It is an otherwise stated statement that has been mathematically quantified. Expressions that add up to one another make up an equation. A formula is an equation with two or more variables that shows how the variables relate to one another. A line with the equation y=mx+b, where m denotes the slope and b the y-intercept, is an example of a linear equation.
Here,
Suppose you want to buy something for $60, and you have $15 saved up so far. Then your grandmother calls and says she will chip in for your purchase. She doesn’t tell you the amount of money she will give you yet, so you just consider it x dollars.
The sum of your saving and grandmother's amount is $60.
15+x=60
According to the definition of equation, "A mathematical statement known as an equation is composed of two expressions joined together by the equal sign (=)," the equation will be 15+x=60.
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A rectangle has a length of 26 inches and a width of 14 inches. If 1 inch = 2.54 centimeters, find the area of the rectangle in centimeters. Round the answer to the nearest tenth.
560.4 cm2
56.4 cm2
2,348.4 cm2
924.6 cm2
PLS hurry and thank you
Answers
The area of the rectangle will be 2,348.3824 cm² as "A rectangle has a length of 26 inches and a width of 14 inches and 1 inch=2.54 cm".
What is area?The measurement that expresses the size of a region on a plane or curved surface is called area. Surface area refers to the area of an open surface or the boundary of a three-dimensional object, whereas the area of a plane region or plane area refers to the area of a shape or planar lamina. Area is the total amount of space occupied by a flat (2-D) surface or an object's shape. On a piece of paper, draw a square using a pencil. It has two dimensions. The area of a shape on paper is the area that it occupies. Consider your square as being composed of smaller unit squares.
Here,
Length in inches=26
Width in inches=14
area in inches=26*14
=364 inch²
Now,
1 inch=2.54 cm
area in cm,
=364*2.54*2.54
=2,348.3824 cm²
Since "a rectangle has a length of 26 inches and a width of 14 inches and 1 inch=2.54 cm," the area of the rectangle will be 2,348.3824 cm².
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i need to answer this question then find the matching graph
Answers
we have
[tex]\begin{gathered} 5a-2\ge8 \\ \text{solve for a} \\ 5a\ge8+2 \\ 5a\ge10 \\ a\ge2 \end{gathered}[/tex]the solution is the interval {2, infinite)
In a number line the solution is the shaded area at right of a=2 (close circle)
therefore
the answer is
First option
If y=x+2 we’re changed to y=x-1 how would the graph of a new function compare with the first one
A it would be shifted down
B it would be shifted left
C it would be less steep
D it would be shifted up
Answers
The graph of the new function compares with the first one by A it would be shifted down
What is a graph?A graph is a pictorial representation of a function.
What is a function?A function is a mathematical expression that shows the relationship between two variables.
How to determine how would the graph of a new function compare with the first one?Since we are given the functions y = x + 2 and If y = x + 2 we’re changed to y = x - 1. We want to determine how the graph of the new function would change compared with the first one.
We proceed with the transformation as follows.
Let
y₁ = x + 2 and y₂ = x - 1So, we can see that
y₂ = x - 1
= x - 1 + 2 - 2
= x + 2 - 1 - 2
= x + 2 - 3
= y₁ - 3
Since y₂ = y₁ - 3, we see that the second graph is shifted down by 3 units from the first one.
So, the graph compares with the first one by A it would be shifted down
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how do i find the distance between -6 and 3 in a number line
Answers
Find the absolute value in the difference of the coordinates.
A motorboat takes 5 hours to travel 200 miles going upstream. The return trip takes 4 hours going downstream. What is the rate of the boat in still water and what is the rate of the current? Rate of the boat still in water=Rate of the current=
Answers
Given,
Time taken by motorboat to going 200 miles upstream is 5 hours.
Time taken by motorboat to going 200 miles downstream is 4 hours.
At upstream,
The speed of boat is offosed by the speed of current.
At downstream,
The speed of boat is incraesed by the speed of current.
Consider,
The speed of boat is b.
The speed of current is c.
The speed is calculated as,
[tex]\begin{gathered} \text{Speed=}\frac{dis\tan ce}{time} \\ b-c=\frac{200}{5} \\ b-c=40 \\ b=c+40\ldots\text{.}\mathrm{}(1) \end{gathered}[/tex]Similarly,
[tex]\begin{gathered} \text{Speed=}\frac{dis\tan ce}{time} \\ b+c=\frac{200}{4} \\ b+c=50 \\ b=50-c\ldots\text{.}(2) \end{gathered}[/tex]Substituting the value of b from equation (2) then,
[tex]\begin{gathered} c+40=50-c \\ 2c=10 \\ c=5\text{ mile per hour} \end{gathered}[/tex]Substituting the value of c in equation (1) then,
[tex]\begin{gathered} b=5+40 \\ b=45\text{ mile per hour} \end{gathered}[/tex]Hence, the speed of boat is 45 mile per hour and speed of current is 5 mile per hour.
Whats is the first step in solving the equation 2y-11=25?
Answers
The first step in solving the equation is adding 11 to both sides, as follows:
[tex]2y-11+11=25+11\Rightarrow2y=36[/tex]In this way, we can start solving the equation for y.
Therefore, the correct option is B: add 11 to both sides.
(This is called Addition Property of Equality: adding the same number to both sides in any equation.)
An official lady's basketball has a circumference of 28.5 inches. How much volume is inside this basketball? Use 3.14 for Pi and round your final answer to the nearest whole cubic inch. A. 1,175B. 392C. 86D. None of the aboveI need help with problem I would appreciate the help.
Answers
How many angles can you make with the angles 120, 60,40
Answers
All types of triangles must have a total angle of 220 degrees. Otherwise, it is not a triangle.
A triangle has three sides three corners and three vertices. The sum of all interior angles of a triangle is always 180°. This is called the sum property of the triangle angles. The sum of the lengths of any two sides of a triangle is greater than the length of the third side. A triangle is a three-sided polygon with three corners.
The three sides are joined end to end at points forming the corners of the triangle. The sum of the three angles of a triangle is 180 degrees. A true triangle is a shape with three sides and three angles. The sum of the two side lengths must be greater than the third side and the sum of the three angles must be 180°.
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Prism pen , Base som 3cm) bom 8cm 2cm 7 cm height=8m 7 find volume
Answers
We can put the 5-sided face downwards so that we have a pentagon-prism.
The volume of the figure will be area of base (area of pentagon) x height.
This way, the height of the figure will be 8 cm and we will find the area of the pentagon, below.
Let's find the area of the base first:
The pentagonal base can be broken down into a square (top left), a triangle (top right), and a rectangle (bottom). We find each of the areas.
• Area of Square
Side lengths are 3 cm, so the area will be:
Area = 3 x 3 = 9
• Area of Triangle
Base is 3 cm and height is 4 cm, so the area will be:
Area = (1/2) * base * height
Area = (1/2) * 3 * 4 = 6
• Area of Rectangle
Base is 7 cm and height is 2 cm, so the area will be:
Area = 7 x 2 = 14
Total Area of Pentagon = 9 + 6 + 14 = 29
Now, the Volume of the Composite Figure is:
Volume = Area of Pentagonal Base * Height
Volume = 29 * 8
Volume = 232 cubic centimeters
AnswerVolume = 232 cubic centimeters
use the digagramagram to
Answers
Answer:
To what?
Step-by-step explanation:
A computer software retailer used a markup rate of 70%. Find the selling price of a computer game that cost the retailer $25.
Answers
Answer:
$42.50
Explanation:
Cost of the game = $25
The markup rate = 70%
Therefore, the selling price will be:
[tex]\begin{gathered} =25+(70\%\text{ of 25)} \\ =25+(0.7\times25) \\ =25+17.5 \\ =42.50 \end{gathered}[/tex]The selling price of the computer game is $42.50.
Find the equation of a line passing through the point (0,1) and parallel to the line 2x – 3y = 6.
Answers
The given equation of the line is
[tex]\begin{gathered} 2x-3y=6 \\ 3y=2x-6 \\ y=\frac{2}{3}x-2 \end{gathered}[/tex]Hence slope of the line is
[tex]\frac{2}{3}[/tex]Since the line passing through (0,1) parallel to the given line then slope is same for both of them
Since (0,1) is a point so the intercept is c=1
So the equation is
[tex]\begin{gathered} y=mx+c \\ y=\frac{2}{3}x+1 \end{gathered}[/tex]Which of the h values are solutions to the following equations? h^2=0.36
Answers
to solve this, you need to isolate x,
Step 1
square root in both sides
[tex]\begin{gathered} h^2=0.36 \\ \sqrt{h^2}=\sqrt{0.36} \\ \text{the }\sqrt{\square}\text{ eliminates the square} \\ h=\pm\sqrt{0.36} \end{gathered}[/tex]so, there are two values for h that fit this equation
[tex]\begin{gathered} +\sqrt{0.36\text{ }}=0.6 \\ \text{and} \\ -\sqrt{0.36}=-0.6 \end{gathered}[/tex]so, the answers are A and B
In the triangle ABC at the right above, AB=CB, and P and Q are points on the sides CB and AB such that AC=AP=PQ=QB. Find the number of degrees in angle B.
Answers
Since QP and QB are equal the triangle PQB the angles:
[tex]\begin{gathered} \measuredangle QPB=\measuredangle QBP \\ \measuredangle QPB=x \end{gathered}[/tex]The last angle can be found by adding all the internal angles and making it equal to 180 degrees.
[tex]\begin{gathered} \measuredangle QPB+\measuredangle QBP+\measuredangle BQP=180 \\ x+x+\measuredangle BQP=180 \\ \measuredangle BQP=180-2x \end{gathered}[/tex]The angle BQP and the angle AQP are suplementary, this means that their sum is equal to 180 degrees. So we have:
[tex]\begin{gathered} \measuredangle AQP+\measuredangle BQP=180 \\ \measuredangle AQP+180-2x=180 \\ \measuredangle AQP=180-180+2x \\ \measuredangle AQP=2x \end{gathered}[/tex]Since the sides AP and PQ are equal, then the angle PAQ is equal to AQP.
[tex]\begin{gathered} \measuredangle PAQ=\measuredangle AQP \\ \measuredangle PAQ=2x \end{gathered}[/tex]To find the last angle on that triangle we can add all the internal angles and make it to 180 degrees.
[tex]\begin{gathered} \measuredangle PAQ+\measuredangle AQP+\measuredangle APQ=180 \\ 2x+2x+\measuredangle APQ=180 \\ \measuredangle APQ=180-4x \end{gathered}[/tex]The angle APC is suplementary with the sum of the angles APQ and BPQ. So we have:
[tex]\begin{gathered} \measuredangle APC+\measuredangle APQ+\measuredangle BPQ=180 \\ \measuredangle APC+180-4x+x=180 \\ \measuredangle APC=3x \end{gathered}[/tex]The sides AP and AC are equal, therefore the angles APC and ACP are also equal.
[tex]\begin{gathered} \measuredangle ACP=\measuredangle APC \\ \measuredangle ACP=3x \end{gathered}[/tex]Then we can find the last angle on that triangle.
[tex]\begin{gathered} \measuredangle CAP+\measuredangle ACP+\measuredangle APC=180 \\ \measuredangle CAP+3x+3x=180 \\ \measuredangle CAP=180-6x \end{gathered}[/tex]The angle CAB is equal to the sum of CAP and PAQ. So we have:
[tex]\begin{gathered} \measuredangle CAB=\measuredangle CAP+\measuredangle PAQ \\ \measuredangle CAB=180-6x+2x \\ \measuredangle CAB=180-4x \end{gathered}[/tex]Since the sides AB and BC are equal, then the angles ACB and CAB must also be equal. We can find the value of x with this.
[tex]\begin{gathered} \measuredangle BAC=\measuredangle ACB \\ 180-4x=3x \\ 7x=180 \\ x=\frac{180}{7} \end{gathered}[/tex]The value of x is 180/7
5-13 Question Help opping Two friends shop for fresh fruit. Elena buys a watermelon for $6.55 and 3 pounds of cherries niy buys a pineapple for $4.35 and 2 pounds of cherries. Use the variable p to represent the price, in lars, per pound of cherries. Write and simplify an expression to represent how much more Elena sper e expression represents how much more Elena spent than Taniy. mplify your answer. Use integers or decimals for any numbers in the expression.) nter your answer in the answer box and then click Check Answer. Clear All Check Ans I parts showing Review progress Question 6 of 12 Back Next →
Answers
Answer:
The expression;
[tex]2.2+p[/tex]represents how much more Elena spent than Taniy
Explanation:
Let the variable p to represent the price per pound of cherries.
Given that Elena buys a watermelon for $6.55 and 3 pounds of cherries.
The total cost Elena spent is;
[tex]6.55+3p[/tex]Taniy buys a pineapple for $4.35 and 2 pounds of cherries.
The total cost Taniy spent is;
[tex]4.35+2p[/tex]The amount Elena spent more than Taniy is;
[tex]\begin{gathered} =(6.55+3p)-(4.35+2p) \\ =6.55-4.35+3p-2p \\ =2.2+p \end{gathered}[/tex]Therefore, The expression;
[tex]2.2+p[/tex]represents how much more Elena spent than Taniy
Part A:
Solve this equation 1/2x-7=1/3(x-12)
Answers
2
x
−
7
=
1
3
(
x
−
12
)
Step 1: Simplify both sides of the equation.
1
2
x
−
7
=
1
3
(
x
−
12
)
1
2
x
+
−
7
=
(
1
3
)
(
x
)
+
(
1
3
)
(
−
12
)
(Distribute)
1
2
x
+
−
7
=
1
3
x
+
−
4
1
2
x
−
7
=
1
3
x
−
4
Step 2: Subtract 1/3x from both sides.
1
2
x
−
7
−
1
3
x
=
1
3
x
−
4
−
1
3
x
1
6
x
−
7
=
−
4
Step 3: Add 7 to both sides.
1
6
x
−
7
+
7
=
−
4
+
7
1
6
x
=
3
Step 4: Multiply both sides by 6.
6
*
(
1
6
x
)
=
(
6
)
*
(
3
)
x
=
18
Answer:
x
=
18
solve 0.9x+5.1x-7=2(2.5x-3)how many solutions does the equation have
Answers
We want to solve the following equation for x:
[tex]0.9x+5.1x+7=2(2.5x-3)[/tex]First, let's expand the parenthesis on the right side of the equation using the distributive property
[tex]\begin{gathered} 0.9x+5.1x+7=2(2.5x-3) \\ 0.9x+5.1x+7=2\cdot2.5x-2\cdot3 \\ 0.9x+5.1x+7=5x-6 \end{gathered}[/tex]To add the terms with x, we just need to add their coefficients.
[tex]\begin{gathered} 0.9x+5.1x+7=5x-6 \\ (0.9+5.1)x+7=5x-6 \\ 6x+7=5x-6 \end{gathered}[/tex]Subtracting 5x from both sides of the equation:
[tex]\begin{gathered} 6x+7-5x=5x-6-5x \\ (6-5)x+7=(5-5)x-6 \\ x+7=0\cdot x-6 \\ x+7=-6 \end{gathered}[/tex]Now, if we subtract 7 from both sides, we have
[tex]\begin{gathered} x+7-7=-6-7 \\ x=-13 \end{gathered}[/tex]Since this is a first degree polynomial, it has only one solution and this solution is x = - 13.
Determine the degree
-1/4abc+2b^2
Answers
The degree of polynomial is 3.
Given polynomial:
⇒ -1/4(abc)+2[tex]b^{2}[/tex]
⇒ -abc/4 + 2[tex]b^{2}[/tex]
the polynomial has two terms,
terms = -1/4(abc), 2[tex]b^{2}[/tex].
Degree of first term is =(-1/4) [tex]a^{1} b^{1} c^{1}[/tex] = 1+1+1 =3
= 3.
Degree of second term = [tex]2b^{2}[/tex] = 2.
Here degree can be determined as highest degree which is equal to 3.
Hence the degree of polynomial is 3.
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Solve the following system of linear equations by substitution and determine whether the system has one solution, no solution, or an infinite number of solutions. If thesystem has one solution, find th e solution3x + 3y = -212x + y = - 15
Answers
Isolating the variable y in the second equation, we have:
[tex]\begin{gathered} 2x+y=-15 \\ y=-15-2x \end{gathered}[/tex]Now, using this value of y in the first equation, we have:
[tex]\begin{gathered} 3x+3y=-21 \\ 3x+3(-15-2x)=-21 \\ 3x-45-6x=-21 \\ -3x=-21+45 \\ -3x=24 \\ x=\frac{24}{-3}=-8 \\ \\ y=-15-2\cdot(-8)=-15+16=1 \end{gathered}[/tex]The solution of the system is x = -8 and y = 1.
A line includes the points (0, 3) and (1, 7). What is its equation in slope-intercept form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.
Answers
The equation of a line in slope - intercept form of a line includes the points (0, 3) and (1, 7)is y - 4x - 3 = 0.
A line includes the points (0, 3) and (1, 7).
We need to write its equation in slope-intercept form
The formula is
y - y₁ = ((y₂ - y₁)/(x₂ - x₁)) (x - x₁)
y - 3 = ((7 - 3)/1 - 0) (x - 0)
y - 3 = (4) x
y - 3 = 4x
y - 4x - 3 = 0
Therefore, the equation of a line in slope - intercept form of a line includes the points (0, 3) and (1, 7)is y - 4x - 3 = 0.
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How many lines of symmetry are there in the object pictured below?Simple answer please
Answers
just the red one, because if we reflect the triangle by the yellow line we won't get the same the same position of triangle
Expand
& simplify
4(b + 4) + 5(b-6)
Answers
Answer:
9b - 14
Step-by-step explanation:
4(b + 4) + 5(b-6)
==> expand by distributing
4b + 16 + 5b - 30
==> simplify by combing like terms
9b - 14
Recall that:
Distributive property : a(b+c) = ab + acLike terms are terms with the same variable(usually defined by a letter) and same exponent. E.g. 4x² and 9x² are like terms because they both have a variable of x and an exponent of 2. Because they are like terms they can be combined to make 13x². This idea was used to combine (4b and 5b) and (16 and -30)Answer:
9b - 14
Step-by-step explanation:
Given expression,
→ 4(b + 4) + 5(b - 6)
Let's simplify the expression,
→ 4(b + 4) + 5(b - 6)
→ 4b + 16 + 5b - 30
→ (4b + 5b) + (16 - 30)
→ 9b + (-14)
→ 9b - 14
Hence, the answer is 9b - 14.
If four pounds of jelly beans costs $6.82, how much would 2 Ibs cost?
Answers
Four pounds of jelly beans: $6.82
First, calculate the cost of 1 lb by dividing the price by the number of pounds:
6.82 / 4 = $1.705 per pound
Now, multiply by 2:
1.705 x 2 = $3.41
Question 5(Multiple Choice Worth 1 points)
(03.01 MC)
Simplify √5 (10-4√2).
A 14
B 15√2
C 5√2-4√10
D 10√5-4√10
Answers
Answer:
I think the answer is D. sorry if I'm wrong
Select the correct equation for the following sentence: Twenty-four is the same as 31.4 times a number plus negative 8.4.
31.4n + 8.4 = 24
–8.4n + 31.4 = 24
24 = 31.4n + (–8.4)
24 – 31.4 = –8.4n