you could calculate the derivative and equalize it to zero,then you can evaluate the function in the boundary points of the domainand compare them to the ones found in the last step to find the maximum of a given function.
Which of these is an exponential parent function?  A. f(x) = 2^x – 3  B. f(x) = 2^x + 2  C. f(x) = 2^x  D. f(x) = 2^x + 1/3
An exponential parent function is the option C. f(x)= [tex]2^{x}[/tex], from the given options.
What do you mean by exponential parent function?
The formula for their parent function is y = [tex]b^{x}[/tex], where b is any non zero constant. Below is a graph of the parent function, y = [tex]e^{x}[/tex], which demonstrates that it will never equal 0. And at y = 1 when x = 0, y crosses the y-axis.
According to options in the given question,
We have the option below in the given question:
A. f(x) = 2^x – 3 
B. f(x) = 2^x + 2 
C. f(x) = 2^x 
D. f(x) = 2^x + 1/3
We know from the above definition that the option C. is the right answer to the given question.
Therefore, the exponential parent function is f(x)= [tex]2^{x}[/tex].
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Anetha wants to eam at least $90 per month. She babysits for $8 per hour (x) and cleans houses for $5 per hour (y). She cannot work more than 15 hours per month. Which pairs (x,y) represent hours that Anetha could work to meet the given conditions?
ANSWER
(6, 9) and (7, 8)
EXPLANATION
We have that x represents the number of hours she spends babysitting and y represents the number of hours she spends cleaning houses.
She cannot work for more than 15 hours per week. This means that:
[tex]x\text{ + y }\leq\text{ 15 \_\_\_\_\_\_\_\_(1)}[/tex]She wants to earn at least $90 per month. This means that:
[tex]8(x)\text{ + 5(y) }\ge\text{ 90 \_\_\_\_\_\_\_\_\_\_(2)}[/tex]We can solve this by plotting the graphs of the inequalities. We have:
The solution of the inequalities is the region that the two shaded regions intersect.
Due to the fact that we are considering number of hours (x and y), we will only concern ourselves with the positive portion of the graph.
So, the pairs (x, y) that can represent the number of hours that Anetha can work are the pairs that fall in the positive x and y axis of the shaded part of the graph.
They are:
(6, 9) and (7, 8)
ms sandlers wants to display his american flag in a triangular case.The height is 8.5 in.the base is 14 2/5 in.what is the area of a triangular case
Here, we want to get the area of the triangular case
Mathematically, this is half the product of the base and the height of the case
We have this as;
[tex]undefined[/tex]If y varies directly as x, and y = 6 when x= 3, find y when x = 9.
y =when x= 9.
We know that:
- y varies directly as x
- y = 6 when x= 3
And we must find y when x = 9
To find it:
1. we must use that y varies directly as x
[tex]y=kx[/tex]2. We must find k using that y = 6 when x = 3
[tex]\begin{gathered} 6=k\cdot3 \\ k=\frac{6}{3} \\ \Rightarrow k=2 \end{gathered}[/tex]3. Finally, to find y when x = 9 we must replace x = 9 and k = 2 to solve it for y
[tex]\begin{gathered} y=2\cdot9 \\ y=18 \end{gathered}[/tex]ANSWER:
y = 18 when x = 9
The expression under the square root sign is 3y+x and not 3v+x
The question asked to for the value of the expression below
[tex]\begin{gathered} \frac{w^2-\sqrt[]{3y+x}}{w+(y-1)} \\ \text{where,} \\ y=6,w=-9,x=7 \end{gathered}[/tex]Concept: Substitute the values in the formula given
[tex]\begin{gathered} \frac{w^2-\sqrt[]{3y+x}}{w+(y-1)} \\ \frac{(-9)^2-\sqrt[]{3(6)+7}}{-9+6-1} \\ =\frac{81-\sqrt[]{18+7}}{-4} \\ =\frac{81-\sqrt[]{25}}{-4} \\ =\frac{81-5}{-4} \\ =\frac{76}{-4} \\ =-19 \end{gathered}[/tex]Hence,
The final answer = -19
Find the arc AB. Round your answer to the nearest hundredth
STEP 1
The formular for the length of an arc is denoted below:
[tex]\text{Length of arc =}\frac{\theta}{360}\times\text{ 2}\Pi R[/tex][tex]\theta=115^0,\text{ }\Pi=\text{ 3.142, Radius(R)=13}[/tex]STEP 2
Substitute the above value into the formular.
[tex]L\text{ =}\frac{115^{}\text{ x2 x 3.142x 13}}{360}[/tex][tex]\begin{gathered} L=\text{ }\frac{9394.58}{360} \\ L\text{ = 26.096 inches} \end{gathered}[/tex]In conclusion, the Length of
como se resuelve esto? 3x²+10x=O
3 x^2 + 10 x = 0
x ( 3 x + 10 ) = 0
x = 0 or 3 x+ 10 = 0
x = 0 or 3 x = -10
x = 0 or x = -10/3
Find the area of a regular hexagon with side lengths of 12 in.
Answer:
[tex]216\sqrt{3\text{ }}\text{ in}^2[/tex]Explanation;
Here, we want to get the area of the regular hexagon
Mathematically, we have that as:
[tex]A\text{ = }\frac{3\sqrt{3}}{2}a^2[/tex]where a represents the length of one of the sides which is 12 in
Substituting the value, we have it that:
[tex]\begin{gathered} A\text{ = }\frac{3\sqrt{3}}{2}\times\text{ 12}^2 \\ \\ A\text{ = 216}\sqrt{3\text{ }}\text{ in}^2 \end{gathered}[/tex]16) Select the sequence of transformations that will carry triangle A onto triangle A'Atranslate 6 units down, then reflect acrossA)'the y-axis5B) reflect over the y-axis, reflect over the x-axis,then 2 units upC)reflect over the x-axis, translate 2 units up,then 8 units left-5D)reflect over the x-axis, rotate 90° clockwise,then translate 4 units down
C
16) Let's first locate the points that make up the pre-image A, and the image A' picking them from each one of those three vertices.
A
(-3,5)
(-5, 5)
(-5,3)
A'
(5,-1)
(5,-3)
(3,-3)
16.2) Then let's pick just one point and apply the transformations, in this case, let's pick point (-3,5)
Counting on the graph
So if we reflect it over the x-axis, we'll get from (-3,5) to (3,-5) and translating up two units, we'll arrive at (-3,-3) and finally to (5,-3) one of the coordinates of the Image A'
16.3) Hence, the answer is C
what digit is in the
The thousands digits are the fourth digit, in this case, 8. but you need to round to the nearest thousand, and like the number after 8 on 8958 is 9, the nearest thousand is 9.
So the answer is 9000
What is the efficiency of a lever if you push 100 N over 5m to move 350 N over 1 m?
The efficiency of a lever is 70%.
From the question, we have
Efficiency = F_out/F_in
=350*1/100*5 = 350/500 = 0.7*100% = 70%
Efficiency:
Efficiency is the proportion of work done by a machine or throughout a process to the overall amount of energy or heat used.
Efficiency is the degree to which a given input may produce a specific outcome with the least amount of waste possible. Efficiency is the capacity to minimize wastage of resources, labor, time, and energy when completing an action or achieving a goal.
The ratio of usable output to total input can be used to objectively measure efficiency. The efficiency of the device is defined as the ratio of energy converted to a useable form to the original amount of energy supplied.
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Find the equation of the line through (2,-4) and parallel to the line 5x-2y-4=0. Write your answer in general form.
We can find the equation of a line given one point and its slope.
Remember that two parallel lines have the same slope; therefore, the slope of 5x-2y-4=0 is equal to the slope of the line we are trying to find.
[tex]\begin{gathered} 5x-2y-4=0 \\ \Rightarrow2y=5x-4 \\ \Rightarrow y=\frac{5x}{2}-\frac{4}{2}=\frac{5x}{2}-2 \\ \Rightarrow y=\frac{5x}{2}-2 \\ \Rightarrow m=\frac{5}{2} \end{gathered}[/tex]Then, we have got everything we need, the slope is equal to 5/2 and a point in the line is (2,-4)
The equation is:
[tex]\begin{gathered} y-(-4)=\frac{5}{2}(x-2) \\ \Rightarrow y+4=\frac{5}{2}(x-2) \\ \Rightarrow y+4=\frac{5x}{2}-5 \\ \Rightarrow y=\frac{5x}{2}-9 \\ \Rightarrow y+9=\frac{5}{2}x \\ \Rightarrow2y+18=5x \\ \Rightarrow5x-2y-18=0 \end{gathered}[/tex]The answer is 5x-2y-18=0
A sample has mean 97 and standard deviation 12.Part: 0/2Part 1 of 2(a) What value is 2.5 standard deviations above the mean?The value that is 2.5 standard deviations above the mean is
The value that is 2.5 standard deviations above the mean is 127
Hello! I’m not sure what are the correct answers could you please help?
a) 400 ft in 15 seconds
d) 1200 ft in 45 seconds
Explanation:Given:
Danny claimed the speed of his airplane was 27 feet per second
To find:
The statements in the options that support the above claim
rate of Danny's airplane = 27 ft/sec
a) rate = 400 feet in 15 seconds
We need tio get the rate in ft/sec
in 1 second = 400/15 = 26.67
Approximately, the rate = 27 ft/sec
b) rate = 3ft in 81 seconds
in 1 second = 3/81 = 0.037 ft/sec
c) rate = 1320 ft in 60 seconds
In 1 second = 1320/60 = 22
rate = 22 ft/sec
d) 1200 ft in 45 seconds
In 1 second = 1200/45 = 26.67
Approximately, rate = 27 ft/sec
The examples below that support his claim are the 1st and last option
I need to find the value of x. can you help me?
The angle on a line is 180°
The sum of the three given angles is 180°:
[tex](6x-10)+(x-5)+(x-5)=180[/tex]Use this equation to find the value of x:
[tex]\begin{gathered} 6x-10+x-5+x-5=180 \\ 8x-20=180 \\ 8x=180+20 \\ 8x=200 \\ x=\frac{200}{8} \\ \\ x=25 \end{gathered}[/tex]Then, the value of x is 251.) Write a sequence with at least 5 terms that forms a pattern . Identify the rule.2.) The first term in a sequence is an odd number. The rule is to multiply by 2 . Explain why the rest of the terms in sequence will be even numbers.
1. Increases by 5 units
2. Any odd number multiplied by an even one yields an even number.
1) We can write out a sequence, an arithmetic one, to follow a pattern.
[tex]5,10,15,20,25,\ldots[/tex]Note that the pattern here is the common difference between each term the first one is 5 and all the other ones increase by 5 units.
2) In this second case, we can pick "5" as well, but in this one, we'll make a Geometric Sequence for the following numbers will be written as the product of the prior term times 2:
[tex]5,10,20,40,\ldots[/tex]Note that all the terms will be even numbers because any odd number multiplied by an even one yields another even number.
Raina has scored 32, 20, 26, and 24 points in her four basketball games so far. How many points does she need to score in her next game so that her average(mean) is 24 points per game
Given the number of points Raina scored in her four basketball games:
[tex]32,20,26,24[/tex]Let be "x" the number of points Raina needs to score in her next game so that her average is 24 points per game.
By definition, the Mean (average) can be calculated by dividing the sum of the values by the total number of values. Therefore, you can set up the following equation:
[tex]\frac{32+20+26+24+x}{5}=24[/tex]Then, when you solve for "x", you get:
[tex]\begin{gathered} \frac{102+x}{5}=24 \\ \\ 102+x=(24)(5) \\ \\ x=120-102 \\ \\ x=18 \end{gathered}[/tex]Hence, the answer is:
[tex]18\text{ points}[/tex][tex] \sqrt[3]{80} [/tex]simplify in simplest radical form
Start by decomposing the number inside the root into primes
Then group the terms into cubes if possible
[tex]\begin{gathered} 80=2\cdot2\cdot2\cdot2\cdot5 \\ 80=2^3\cdot2\cdot5 \\ 80=10\cdot2^3 \end{gathered}[/tex]rewrite the root
[tex]\sqrt[3]{80}=\sqrt[3]{10\cdot2^3}[/tex]then cancel the terms that are cubes and bring them out of the root
[tex]\sqrt[3]{80}=2\sqrt[3]{10}[/tex]An isosceles triangle has two equal angles. Find the measure of the third angle of triangle please help me understand
Given:
The angles of an isosceles triangle are,
∠M=40°
∠N=70°
The objective is to find the measure of ∠O.
An isosceles triangle is a triangle with two equal sides or two equal angles.
From the above figure, the two equal angles x are always larger than the third angle y.
Thus, the third angle will also be equal to the larger angle from the given agle.
Hence, the third angle is, ∠O = 70°.
8. Jenise throws a ball 75 times and hits the larget 41 times. What is the experimental probability that she will hit the target? State your answer as a percent. The experimental probability that she will hit the target is (Round to the nearest hundredth as needed.)
OK
Number of throws = 75
Number of targets = 41
Probability = number of targets / number of throws
Probability = 41/75 x 100
Probability = 0.54666 x 100
Probability = 54.67 %
Plot the value of 8 x 1/2 on the number line shown.
Step 1: Firstly, simplify the expression
[tex]\begin{gathered} 8\text{ }\times\text{ }\frac{1}{2} \\ =\text{ }\frac{8\text{ x 1}}{2} \\ =\text{ }\frac{8}{2} \\ =\text{ 4} \end{gathered}[/tex]Step 2: The value may be less than or greater than 4.
Positive numbers are plotted to the right of the origin while negative numbers are plotted to the left of the origin.
Step 3: Plot the number line
Which tells about surface area of solid or space figures
Given
we are given solid or space figures
Required
we need to find what gives surface area of a solid figure.
Explanation
The surface area of any solid shape is the sum of areas of all faces in that solid figure.
Example: when finding surface area of cube we add the area of each square constituting the cube.
What is the solution set to this equation?1054(= + 3) + 108.7
ANSWER
[tex]C.\text{ }x=1\text{ and }x=-4[/tex]EXPLANATION
We want to find the solution set to the equation given:
[tex]\log_4(x+3)+\log_4x=1[/tex]According to the laws of logarithm, we have that:
[tex]\begin{gathered} \log_ax+\log_ay=\log_a(x*y) \\ \\ and \\ \\ \log_aa=1 \end{gathered}[/tex]Therefore, we can rewrite the equation as follows:
[tex]\log_4[(x+3)*x]=\log_44[/tex]Since the logarithms on both sides have the same base, it implies that:
[tex](x+3)*x=4[/tex]Simplify and solve for x:
[tex]\begin{gathered} x^2+3x=4 \\ \\ x^2+3x-4=0 \\ \\ x^2+4x-x-4=0 \\ \\ x(x+4)-1(x+4)=0 \\ \\ (x-1)(x+4)=0 \\ \\ x=1\text{ and }x=-4 \end{gathered}[/tex]Hence, the correct answer is option C.
3 What is the product of and? 6 6 49 6 49 6 o
You have to multiply the fractions
[tex](-\frac{2}{7})\cdot(-\frac{3}{7})[/tex]First note that both values are negative. As a rule, when two negative values are mutiplied, the result will be positive, always.
Next, you have to multiply the numerators together and the denominators together as follows:
[tex]\frac{2}{7}\cdot\frac{3}{7}=\frac{2\cdot3}{7\cdot7}=\frac{6}{49}[/tex]What is the total sum of the interior degree of this polygon?What is the value of x?What is the measure of angle T
we are given a polygon with 6 sides, therefore, is a hexagon. The interior angles of a hexagon always add up to 720 degrees.
Using the expression and the given angles, we can construct the following relationship:
[tex](x+80)+135+(x+50)+130+(x+75)+115=720[/tex]Solving the operations we get:
[tex]3x+585=720[/tex]Now we solve for "x" first by subtracting 595 to both sides:
[tex]\begin{gathered} 3x=720-585 \\ 3x=135 \end{gathered}[/tex]Now we divide by 3:
[tex]x=\frac{135}{3}=45[/tex]Therefore, x = 45.
Now we use the expression for angle T:
[tex]\angle T=x+50[/tex]Replacing the value of x, we get:
[tex]\angle T=45+50=95[/tex]Therefore, angle T is 95 degrees.
If I have found my slope intercept form and I need to graph the line but my slope and y intercept are fractions do I need to make the denominators the same to graph the line?
The formula for the slope-intercept form of a line is:
[tex]\begin{gathered} y=mx+b \\ m=slope \\ b=intercept \end{gathered}[/tex]If you have found the slope-intercept form and need to graph the line, but your slope and y-intercept are fractions, you do not really need to make the denominators the same. All you need to do is make a table of values on a range of values from which your graph can be plotted.
A triangle with area of 28 square inches has a height that is two less than four times the base. Find the base and the height of the triangle. Base is _ inches Height is __ inches
We write the following equations from the data of the statement of the problem:
• the area of the triangle is A = 28,
,• the height h and the base b are related by the following equation:
[tex]h=4b-2[/tex]The formula for the area of the triangle:
[tex]A=\frac{1}{2}\cdot b\cdot h\text{.}[/tex]Replacing the data of the problem in the equation above:
[tex]28=\frac{1}{2}\cdot b\cdot(4b-2).[/tex]We rewrite the equation in the following way:
[tex]\begin{gathered} 2\cdot28=b\cdot(4b-2), \\ 56=4b^2-2b, \\ 4b^2-2b-56=0. \end{gathered}[/tex]We have a quadratic equation for the length of base b, the solutions to this equation are:
[tex]b=4\text{ and }b=-\frac{7}{2}\text{.}[/tex]Because b is the length of one side of the triangle, and lengths are positive quantities, we must select the positive value of b, so we have:
[tex]b=4.[/tex]Replacing this result in the equation for the height, we get:
[tex]h=4b-2=4\cdot4-2=16-2=14.[/tex]Answer
• Base is ,4, inches,
,• Height is, 14, inches.
10.Write the equation in slope-intercept form for the line that passes through the given pointand is perpendicular to the given equation.6x + 3y = -9 and passes through (-2, 2)
Let first put the equation of the first line in the form of slope intercept
[tex]\begin{gathered} 6x+3y=-9\rightarrow \\ y=\frac{-9-6x}{3}=-3-2x \end{gathered}[/tex]So it's slope is -2, so the new slope is
[tex]m=-\frac{1}{-2}=\frac{1}{2}[/tex]Having the slope, we have that
[tex]\begin{gathered} y-2=\frac{1}{2}(x+2)=\frac{1}{2}x+1 \\ y=\frac{1}{2}x+1+2=\frac{1}{2}x+3 \end{gathered}[/tex]so the equation is
[tex]y=\frac{1}{2}x+3[/tex]f(x)=3x+12 find f(15)
f(15) = 57
Explanation:Given that
f(x) = 3x + 12
To find f(15), perform the following:
Step 1: Replace x by 15 in the given function
f(15) = 3(15) + 12
Step 2: Evaluate the expression
f(15) = 45 + 12
= 57
Find the slope of the lines between two points (4,8);(-1,8)
We want to find the slope, the slope formula is;
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Inserting the values, (4,8), (-1,8), we have;
[tex]m=\frac{8-8}{-1-4}=\frac{0}{-5}=0[/tex]Thus, the slope is zero