On 14 would I solve the 32x + 72 or is that the answer. The app stopped in the middle of the other tutor
Answers
The given expression is 8(4x+9)
Multiplying 8 to each term of (2x+9), we get
[tex]8(4x+9)=8\times4x+8\times9[/tex][tex]=32x+72.[/tex]Related Questions
A bank offers a CD that pays a simple interest rate of 2.5%. How much must you put in this CD now in order to have $4,000 for a home-entertainmentcenter in 2 years.
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The formula to calculate Simple Interest is given as
[tex]I=\frac{\text{PRT}}{100}[/tex]The question provides the following parameters:
[tex]\begin{gathered} R=2.5 \\ T=2 \end{gathered}[/tex]If the amount to be had now is $4000, which is inclusive of the interest to be had over the period, this means that
[tex]P+I=4000[/tex]If we substitute the value for I, we have a new equation, such that
[tex]\begin{gathered} P+\frac{\text{PRT}}{100}=4000 \\ \therefore \\ P(1+\frac{RT}{100})=4000 \end{gathered}[/tex]Substituting the values into the equation, we can solve for P as
[tex]\begin{gathered} P(1+\frac{2.5\times2}{100})=4000_{} \\ P(1+0.05)=4000 \\ 1.05P=4000 \\ P=\frac{4000}{1.05} \\ P=3809.52 \end{gathered}[/tex]The answer is $3,809.52
Which inequality represents the phrase, the quotient of w and four is at least 3.
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The inequality that represents the phrase is:
[tex]\frac{w}{4}\ge3[/tex]the sum of z and 24 is equal to 116
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Given that the sum of z and 24 equals 116, we can represent this statement as follows
We can then proceed to solve the equation by following the steps below:
[tex]z+24=116[/tex]Step 1: subtract 24 from both sides
[tex]z+24-24=116-24[/tex]Step 2: simplify the expression
[tex]z=92[/tex]Thus the value of Z = 92
select three values for x that makes the inequality true
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Explanation:
We would insert the values of x in the inequality. If the result is true, then the value of x makes it true
-5x + 3 > -17
if x = -3
-5(-3) + 3 > -17
15 + 3 > -17
18 > -17 (true)
if x = -2
-5(-2) + 3 > -17
10 + 3 > -17
13 > -17 (true)
if x = 0
-5(0) + 3 > -17
0 + 3 > -17
3 > -17 ( true)
if x = 4
-5(-3) + 3 > -17
Add (c + 3) + ( + 6) Add and Subtract polynomials
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The given polynomial expression is
(c + 3) + (c + 6)
By opening the brackets, we have
c + 3 + c + 6
By collecting like terms, we have
c + c + 3 + 6
2c + 9
The final answer is 2c + 9
at what price should an office equipment sales representative sell computers purchased at the cost of 19,985 and of the mark on rate is 35%?
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To determine the selling price we need to add %35 to the purchased prise; that is:
[tex]19985+0.35(19985)=26979.75[/tex]Therefore the seling price should be $26,979.75
Solve the inequality. −2x+3>x−18 Enter the exact answer in interval notation.
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Step 1
Given;
[tex]-2x+3>x-18[/tex]Required; To solve the inequality
Step 2
Bring like terms together
[tex]-2x-x>-18-3[/tex]Step 3
Simplify
[tex]-3x>-21[/tex]Step 4
Multiply both sides by -1
[tex]-3x(-1)<-21(-1)_{}[/tex]Step 5
Simplify
[tex]3x<21[/tex]Step 6
Divide by 3 and get the answer
[tex]\begin{gathered} \frac{3x}{3}<\frac{21}{3} \\ x<7 \\ In\text{ in}terval\text{ notation;} \\ (-\infty,7) \end{gathered}[/tex]Hence, the exact answer in interval notation is;
(-∞,7)
Evaluate the expression 25 – 14 +3.
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ANSWER
14
EXPLANATION
We want to evaluate the expression given:
25 - 14 + 3
First, let us evaluate the subtraction (25 - 14). We are left with:
11 + 3
Now, evaluate:
14
That is the answer
Derive the following functionsa) (2x+1)⁴b) f(x) = [tex] \sqrt{6x + 3} [/tex]
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Given:
18.
[tex]f(x)=\sqrt[]{6x-3}[/tex]To find the derivative of the given function, we apply chain rule first:
Therefore, the answer is :
[tex]\frac{3}{\sqrt[]{6x-3}}[/tex]Ab and CD are opposite sides so ab are congruent to CD 2a=34 a=17 find the value of each variable
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Two segments of lines or two angles are congruent if the have the same length and the same measure, respectively. In a parallelogram, a geometric figure which opposite sides are parallel, opposite sides are congruent and opposite angles are also congruents.
In this case CD is opposite to AB, so they are congruent and have the same length. Since the segment AB measures 2a and the segment CD mesures 34, then we have the equation
[tex]\begin{gathered} 2a=34 \\ a=\frac{34}{2} \\ a=17. \end{gathered}[/tex]Similarly, the angles A and C are congruent since they are opposite, so their measurement is the same. Since the angle A measures 8b and the angle C measures 112, then we have the next equation
[tex]\begin{gathered} 8b=112 \\ b=\frac{112}{8} \\ b=14 \end{gathered}[/tex]
Hello, I need some assistance with this homework question please for precalculusHW 23
Answers
ANSWER
slope = 1
EXPLANATION
Given:
Points (1, 2) and (8, 9).
Desired Outcome:
Slope of the line
Applying the slope formula
[tex]slope\text{ = }\frac{y_2\text{ - y}_1}{x_2\text{ - x}_1}[/tex]where:
y2 = 9,
y1 = 2
x2 = 8 and
x1 = 1
Substituting the values
[tex]\begin{gathered} slope\text{ = }\frac{9\text{ - 2}}{8\text{ - 1}} \\ slope\text{ = }\frac{7}{7} \\ slope\text{ = 1} \end{gathered}[/tex]Hence, the slope of the line containing the points (1, 2) and (8, 9) is 1.
y=8x+3 ordered pairs
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Answer: (1, 11) and (-1, -5), OPTION C
We are given the equation
y = 8x + 3
This implies that the value of y is a function of x
Firstly, we need to test the options
For (1, 11)
From the point given, let x = 1 and y = 11
Substitute the value of x and y in the above equation
Since, y = 8x + 3
11 = 8(1) + 3
11 = 8 + 3
11 = 11
This implies that (1, 11) satisfied the equation y = 8x + 3
For (-1, -5)
Let x = -1 and y = -5
-5 = 8(-1) + 3
-5 = -8 + 3
-5 = -5
The point (-1, -5) satisfies the equation y = 8x + 3
Hence, the answer is (1, 11) and (-1, -5)
COMPARING METHODS Consider the equation x+ 2 = 3x – 4.a. Solve the equation using algebra.
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Answer: 2
We are given the equation
x + 2 = 3x - 4
To solve for x.
Firstly, we need to collect the like terms
x - 3x = -4 - 2
-2x = -6
Divide both sides by -2
-2x/-2 = -6/-2
x = -6/-2
Negative sign will cancel negative sign
x = 6/2
x = 2
The answer is 2
2m + 7 =9 solution please
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The following sets of data show the high temperatures in four different cities for a week in December
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the data that have the greatest spread are
(3, 12, 25, 34, 51)
Find the modulo class to which the number belongs for the indicated modulo system.14, modulo 2
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Given:
Given the number 14.
Required: Modulo class where 14 belogs
Explanation:
For the case of mod 2, there are 2 modulo classes, from 0 to 1, equivalent to the remainder when a number 'n' is divided by 2.
14 is divisible by 2. So, the remainder of 14 divided by 2 gives 0. Hence 14 belongs to the modulo class [0].
Final Answer: 14 belongs to the modulo class of 0.
how many hours would it take for sally and steve?
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Answer:
It would take 2.7 hours
Explanation:
To know how many hours they take together, we need to add the inverse of the time that they take to paint, so
[tex]\frac{1}{8}+\frac{1}{4}=\frac{8+4}{8(4)}=\frac{12}{32}=0.375[/tex]Because Sally takes 8 hours and Steve takes 4 hours to paint the room. Finally, we need to find the inverse of 0.375, so
[tex]\frac{1}{0.375}=2.7\text{ hours}[/tex]So, they would take 2.7 hours to paint the room.
Find the equation for the line that passes through the point (-4,-3) and that is perpendicular to the line with the equation y=3/4x-1
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Given,
The coordinate that lie on the line is (-4, -3).
The equation of line is y = 3/4x-1.
The standard equation of line is,
[tex]y=mx+c[/tex]Here, m is the slope of the line.
On comparing, the slope of the line y = 3/4x-1 with the standard equation of line then m = 3/4.
The relation of two perpendicular line is,
[tex]\begin{gathered} m_1\times m_2=-1_{} \\ \frac{3}{4}\times m_2=-1 \\ m_2=\frac{-4}{3} \end{gathered}[/tex]The equation of line passing through the point (-4,-3) and perpendicular to line y = 3/4x-1 is,
[tex]\begin{gathered} y-y_1=m(x-x_1) \\ y-(-3)=\frac{-4}{3}(x-(-4)) \\ y+3=\frac{-4}{3}(x+4) \\ 3y+9=-4x-16 \\ 3y=-4x-25 \\ y=\frac{-4x-25}{3} \end{gathered}[/tex]Hence, the equation of line perpendicular to y = 3/4x-1 is y = (-4x-25)/3.
Some the quadratic equation by completing the square.x^2+4x-11=0First choose the appropriate form and fill in the blanks with the correct numbers. Then solve the equation. If there’s more than one solution separate them with commas.
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By completing the square, we have:
[tex]\begin{gathered} x^2+4x=11 \\ x^2+4x+2^2=11+2^2 \\ (x+2)^2=11+4 \\ (x+2)^2=15 \end{gathered}[/tex]Take the square root of both sides
[tex]\begin{gathered} (x+2)=\pm\sqrt[]{15} \\ x=+\sqrt[]{15}-2\text{ OR x= -}\sqrt[]{15}-2 \\ x=3.8729-2\text{ OR -3.8729-2} \\ x=1.873\text{ OR -5.873} \end{gathered}[/tex]what is a quadrilateral with 4 congruent sides and 4 right angles called?
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what is a quadrilateral with 4 congruent sides and 4 right angles called .......................
a Parallelogram with four congruent sides and four right angles.
You survey 100 people in your school and ask them if they feel your school has adequate parking.
Only 30% of the sample feels the school has enough parking. If you have 728 students total in your school, how many would you expect out of all the student body that felt there was enough parking?
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Answer:
218 students feel there is enough parking.
Step-by-step explanation:
First, we convert 30% into a decimal by moving the decimal point over twice to get 0.30. Then, we set up this equation:
0.30 x 728 = 218.4
Now, you can't have a fraction of a person, so we round to the nearest whole number to get 218 students.
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What is the approximate area of the circle? Use 3.141 for pi and do not round your answer.
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The radius of the circle is 2 units and the value of pi is 3.141.
Hence the area of the circle is given by:
[tex]\begin{gathered} A=\pi\times r^2 \\ A=3.141\times2^2 \\ A=12.564 \end{gathered}[/tex]Hence the area is 12.564 square units.
Enter an equation in point-slope form for the line.Slope is -8 and (1,4) is on the line.The equation of the line in point slope form is:
Answers
y - 4 = -8 ( x - 1)
Explanations:The point slope form of the equation of a line is given as:
y - y₁ = m (x - x₁)
Where m represents the slope of the line
(x₁, y₁) are the coordinates of the point
Slope is -8 and (1,4) is on the line
m = -8
x₁ = 1
y₁ = 4
Substituting these into the equation:
y - y₁ = m (x - x₁)
y - 4 = -8 ( x - 1)
suppose that R(x) is a polynomial of degree 12 whose coefficients are real numbers. Also, suppose that R(x) has the following zeros. Answer the following.Edit: if its ok please double-check the answers.
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According to the polynomial roots description, we can conclude that 5-i is another zero of R(x), the maximum number of real zeroes that R(x) can have is 8, and the maximum number of non-real zeroes that R(x) can have is 4.
It is given to us that -
R(x) is a polynomial of degree 12 whose coefficients are real numbers.
The zeroes of R(x) are -
-6, -2+3i, -2-3i, 5+i
We have to find out -
(a) Another zero of R(x)
(b) The maximum number of real zeroes that R(x) can have
(c) The maximum number of non-real zeroes that R(x) can have
Since R(x) is a polynomial of degree 12, there are in total 12 roots.
(a) If a non-real, complex, root 5+i exists, then so it's conjugate 5-i exists which is another zero of R(x).
(b) Now, the total number of zeroes of R(x) can be stated as -
-6, -2+3i, -2-3i, 5+i, 5-i
From the above list of zeroes, we can see that there are at least 4 non-real zeroes. So, R(x) has a total of 12 zeroes and we know that there are at least 4 non-real zeroes.
Thus, we can say that the maximum number of real zeroes that R(x) can have is 12-4 = 8 real zeroes.
(c) The non-real complex zeroes always exist in conjugate pairs. And the total number of zeroes that R(x) can have is 12. And we already have determined that R(x) can have a maximum of 8 real zeroes.
Thus, the maximum number of non-real zeroes that R(x) can have is 12-8 = 4 non-real zeroes.
Therefore, according to the polynomial roots description, we can conclude that 5-i is another zero of R(x), the maximum number of real zeroes that R(x) can have is 8, and the maximum number of non-real zeroes that R(x) can have is 4.
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what are the x and y intercepts of the linear function given by the equation 2x+5y=-10
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In order to find the x-intercept of the function, you need to evaluate the function for y = 0, so:
[tex]\begin{gathered} 2x+5y=-10 \\ y=0 \\ 2x+5(0)=-10 \\ 2x=-10 \\ x=-\frac{10}{2} \\ x=-5 \end{gathered}[/tex]So, the x-intercept is x = -5
In order to find the y-intercept of the function, you need to evaluate the function for x = 0, so:
[tex]\begin{gathered} 2x+5y=-10 \\ x=0 \\ 2(0)+5y=-10 \\ 5y=-10 \\ y=-\frac{10}{5} \\ y=-2 \end{gathered}[/tex]Therefore, the y-intercept is y = -2
calculate the female's BMI. Round your answer to one decimal place.
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For the 17 year old female with:
Weight: 145 lbs
Height: 5'4''→64 inches
[tex]BMI=\frac{703w}{h^2}[/tex]w= weight (pounds)
h= height (inches)
Replace the given values in the formula to determine the girl's BMI
[tex]\text{BMI}=\frac{703\cdot145}{(64)^2}=24.89[/tex]The girl's BMI is 24.89
A helthy weight is considered to be w
Which expression represents the relationship between the step number n and the total number of small squares in the pattern? A Step 1 Step 2 Step 3 n²-n n2-1 n²+n n²+1
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We can see in the sequence is :
[tex]0,3,8[/tex]That is a squar of side 1 minus one square so the solution will be:
[tex]n^2-1[/tex]and we can replace the first 3 steps to be sure of the answe so:
[tex]\begin{gathered} 1\to1^2-1=0 \\ 2\to2^2-1=3 \\ 3\to3^2-1=8 \end{gathered}[/tex]Line k has an equation of y = x + - 2/7. Line L includes the point (7,-2) and is perpendicular to
line k. What is the equation of line L? Write the equation in slope-intercept form. Write the numbers in the equation as simplified
proper fractions, improper fractions, or integers.
Answers
Answer:
y = -x+5
Step-by-step explanation:
y-(-2) = -1(x-7)
y+2 = -x + 7
y = -x + 7-2
y = -x + 5
The percent y (in decimal form) of battery power remaining x hours after you turn on a laptop computer is y=-0.2x + 1. Graph the equation and use it to answer questions 1 and 2. a. What is the x-intercept? What does it represent? b. What is the y-intercept? What does it represent?c. After how many hours is the battery power at 75%d. what is the percentage of battery power remaining at 3 hours?
Answers
The percent y (in decimal form) of battery power remaining x hours after you turn on a laptop computer is given by
[tex]y=-0.2x+1[/tex]Let us graph the above equation
a. What is the x-intercept? What does it represent?
The x-intercept is the point where the line intersects the x-axis.
From the graph, we can see that the x-intercept is (5, 0)
The x-intercept represents that it takes 5 hours for the battery power to go to 0%
You can manually find out the x-intercept by substituting y = 0 into the given equation
[tex]\begin{gathered} y=-0.2x+1 \\ 0=-0.2x+1 \\ 0.2x=1 \\ x=\frac{1}{0.2} \\ x=5 \end{gathered}[/tex]Therefore, the x-intercept is (5, 0)
b. What is the y-intercept? What does it represent?
The y-intercept is the point where the line intersects the y-axis.
From the graph, we can see that the y-intercept is (0, 1)
The y-intercept represents that the battery power is 1 (100%) when x = 0 hours.
You can manually find out the y-intercept by substituting x = 0 into the given equation
[tex]\begin{gathered} y=-0.2x+1 \\ y=-0.2(0)+1 \\ y=1 \end{gathered}[/tex]Therefore, the y-intercept is (0, 1)
c. After how many hours is the battery power at 75%
We need to substitute y = 0.75 (that means 75%) into the equation to find out x (number of hours)
[tex]\begin{gathered} y=-0.2x+1 \\ 0.75=-0.2x+1 \\ 0.75+0.2x=1 \\ 0.2x=1-0.75 \\ 0.2x=0.25 \\ x=\frac{0.25}{0.2} \\ x=1.25\: \text{hours} \end{gathered}[/tex]Therefore, after 1.25 hours, the battery power is at 75%
d. what is the percentage of battery power remaining at 3 hours?
We need to substitute x = 3 hours into the equation to find out y (remaining battery power)
[tex]\begin{gathered} y=-0.2x+1 \\ y=-0.2(3)+1 \\ y=-0.6+1 \\ y=0.4 \end{gathered}[/tex]Therefore, the remaining battery power is 40% after 3 hours.
Can I get help with B? I just need to find the standard deviation
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Given the set of data:
11, 7, 14, 2, 8, 13, 3, 6, 10, 3, 8, 4, 8, 4, 7
Let's find the standard deviation.
To find the standard deviation, apply the formula:
[tex]s=\frac{\sqrt{\Sigma(x-\mu)^2}}{n-1}[/tex]Where:
x is the data
u is the mean
n is the number of data = 15
To find the mean, we have:
[tex]\begin{gathered} mean=\frac{11+7+14+2+8+13+3+6+10+3+8+4+8+4+7}{15} \\ \\ mean=\frac{108}{15} \\ \\ mean=7.2 \end{gathered}[/tex]Hence, to find the standard deviation, we have:
[tex]\begin{gathered} s=\sqrt{\frac{(11-7.2)^2+(7-7.2)^2+(14-7.2)^2+(2-7.2)^2+(8-7.2)^2+(13-7.2)^2+(3-7.2)^2+(6-7.2)^2+(10-7.2)^2+(3-7.2)^2+(8-7.2)^2+(4-7.2)^2+(8-7.2)^2+(4-7.2)^2+(7-7.2)^2}{15-1}} \\ \\ s=\sqrt{\frac{188.4}{14}} \\ \\ s=\sqrt{13.457} \\ \\ s=3.7 \end{gathered}[/tex]Therefore, the standard deviation is 3.7
xzANSWER:
3.7