Answer:
C
Step-by-step explanation:
\((a^{-2}\cdot 8^7)^2= \\\\a^{-2\cdot 2}\cdot 8^{7\cdot 2}= \\\\a^{-4}\cdot 8^{14}\)
Therefore, the correct answer is C. Hope this helps!
Is g = 2.5 a solution for 11.8 = 9.3 + g Yes or No
please show work
Answer:
Yes
Step-by-step explanation:
9.3
+2.5
---------
11.8
9+2=11
.3+.5=.8
11+.8=11.8
⚠️HOMEWORK!⚠️GIVING BRAINLIEST TO WHOM CAN DO THE NUMBER LINE TOO! "Kyra is participating in a fundraiser walk-a-thon. She walks 2 miles in 30 minutes. if she continues to walk at the same rate, determine how many minutes it will take her to walk 7 miles. Use a double number line diagram to support your answer."
Answer:
Ok first let's find the even number below 7 which will equal 6 so if it took her 30 min to run/walk 2 miles so it's basically 30x3=90 min but there is that seven so if it took her 30 min to run/walk 2 miles 30 divided by 2= 15 so your total amount of min she ran/walked will be 105 min or 1 hour and 45 min. Happy New Years and I hoped this helped you
Answer: 105 minutes or 1 hour and 45 minutes
Step-by-step explanation:
Find the amount of interest …… if I had $2400 in the bank and the interest rate was 3% for 1 yr.
What is the total I have after 2 years?
Answer:
2546.16
Step-by-step explanation:
2400x0.03=72
2400+72=2472
2472x0.03=74.16
2472+74.16=2546.16
What you type in calculator
Consider the functions below -
Answer:
y-intercept
Step-by-step explanation:
In all cases, when x = 0, f(0) = a or b or c.
Answer: y-intercept
Did I do it right? Grade 7 math
Answer:
You have all the right answer except for the last one it should be 20 not 22
Step-by-step explanation:
Here's way she is buying two candles which is $12 then to rush it it is an extra $8 adding them together you get only $20.
The circumference of a circular park is approximately 18 feet. What is the approximate area inside the circular park?
Answer:
25.685 square feet.
Step-by-step explanation:
Circumference = 2 * π * radius
From this, we can derive the formula for the radius:
radius = Circumference / (2 * π)
Let's substitute the value of the circumference and calculate the approximate radius:
radius = 18 / (2 * π)
radius ≈ 18 / (2 * 3.14159)
radius ≈ 2.865 feet
Now that we have the approximate radius, we can calculate the area:
Area ≈ π * radius²
Area ≈ 3.14159 * (2.865)²
Area ≈ 3.14159 * 8.193225
Area ≈ 25.685 square feet
Therefore, the approximate area inside the circular park is approximately 25.685 square feet.
-3 2/6 divided by 1 1/2
A. 9/20
B. -3 2/3
C. -2 2/9
D. -5
Answer:
-5/3or
-1 2/3 or
-1.6 so b or c I think Ialso is it 11/2 or 1 1/2
Can someone help?- I will mark brainliest !!
3-45+45-67+12x4/8=?
Help justashadow be my frend
Answer:
-58
have an amazing day
Answer:
-58
Step-by-step explanation:
-6(12p-8n) Please help me with this distributive property question.
Answer:
=48n−72p
Step-by-step explanation: Good luck
Answer:
48n−72p
Step-by-step explanation:
−6(12p−8n)
=(−6)(12p+−8n)
=(−6)(12p)+(−6)(−8n)
=−72p+48n
=48n−72p
Select the equivalent expression for each expression.
look at the image
Answer:
(1.3^9)/(1.3^3)= Last Column: (1.3)^6
(-5/6)^2= First Column: -5^2/6^2
(-5/6)^1: Third Column: -5/6
(1.3)^0: Second Column: 1
Answer:
first row last column, second row first column, third row third column, last row second column
Step-by-step explanation:
first row last column: doing division w/ exponents means you have to subtract the exponents. 9-3=6 and since they have the same base, you don't have to do anything with it, so the answer is the last column.
second row first column: properties show that the square of -5/6 is equal to -5^2/6^2 or 5^2/-6^2. therefore, the answer is the first column.
third row third column: anything to the power of one is itself.
last row second column: anything to the power of zero is one.
Please help me with the answer
The cost that will maximize the demand, considering the quadratic function, is given as follows:
$3.
How to maximize the demand?The quadratic function representing the demand is given as follows:
y = -10x² + 60x + 180.
The vertex of a quadratic function is the point on the graph where the function reaches its maximum or minimum value. For a quadratic function in standard form y = ax² + bx + c, the x-coordinate of the vertex is given by:
x = -b / (2a)
The coefficients of the quadratic function in this problem are given as follows:
a = -10, b = 60.
The x-coordinate is the price that maximizes the demand, hence it is obtained as follows:
x = -60/(2 x (-20))
x = 3.
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What is the domain and range of:
Answer:
b
Step-by-step explanation:
how it works with life
x/2 = 7
A) x = 5
B) x = 7
C) x = 9
D) x = 14
Answer: its x=14
Step-by-step explanation:
Evaluate the expression.
18+4 (10-2^3) - 2
Answer:
hey
=24 is your answer
Step-by-step explanation:
18+4(10−2^3)−2
divide by 2 x X
- Bacon
Answer:
24
Step-by-step explanation:
2^3=8
10-8=2
4*2=8
18+8-2=24
lets evaluate (3^6)^1/2
step by step.
Answer:
27Step-by-step explanation:
\(\bigg(3^6\bigg)^{\frac{1}{2}}\)
use
\((a^n)^m=a^{n\cdot m}\)
\(\bigg(3^6\bigg)^{\frac{1}{2}}=3^{6\cdot\frac{1}{2}\)
simplify
\(6\!\!\!\!\diagup^3\cdot\dfrac{1}{2\!\!\!\!\diagup_1}=3\cdot\dfrac{1}{1}=3\cdot1=3\)
other
\(6\cdot\dfrac{1}{2}=\dfrac{6\cdot1}{2}=\dfrac{6}{2}=3\)
therefore
\(\bigg(3^6\bigg)^{\frac{1}{2}}=3^{6\cdot\frac{1}{2}}=3^3=\underbrace{3\cdot3\cdot3}_{3}=27\)
\(\displaystyle\bf \boldsymbol{\boxed{(a^n)^m=a^{n\cdot m}}} \\\\(3^6)^{\frac{1}{2}} =3^{\frac{6}{2} }=3^3=\boldsymbol{{\boxed {27}}}\)
Cheryl moves houses. Her old house is 3 kilometers from her new house. How many meters is it from the old house to the new house? (4 points)
3 meters.
30 meters.
300 meters.
3,000 meters.
Answer:
3 kilometers x 1,000 meters/km= 3,000 meters
Step-by-step explanation:
Answer:
Step-by-step explanation:
Note that 1 km = 1000 m. Therefore, 3 km = 3,000 m
Find the missing angle measurement.
A. 63 degrees
B. 73 degrees
C. 90 degrees
D. 153 degrees
To find the missing angle measurement, we will use the Angle Sum Property to create an algebraic equation that can solve for a missing angle given two angles in a right triangle.
Create an EquationWe are given an angle of 27º and 90º (refer to the square in the bottom right-hand corner.
We know that all of the angles in a triangle must add up to 180º using the Angle Sum Property.
Create an equation to find the missing value.
\(27 + 90 + x = 180\)
Combine Like TermsCombine the constants on the left side of the equation.
\(27 + 90 + x = 180\)
\(117 + x = 180\)
SubtractSubtract 117 from both sides of the equation.
\(117 - 117 + x = 180 - 117\)
\(\boxed{x = 63}\)
The final answer is x = 63º.
Answer:
63 degrees
Step-by-step explanation:
−4+(−4)=minus, 4, plus, left parenthesis, minus, 4, right parenthesis, equals? Please help me!
Answer: -8
Step-by-step explanation: Remove Parentheses, then Subtract
4 from -4 and you get -8
-4+(-4) = -8
What are negative numbers?In the real number system, a negative number is a number that is less than zero.
Given are two negative numbers, -4 and -4
Adding two negative numbers is: you're just adding two "negative" arrows, so it's just like "regular" addition, but in the opposite direction. For instance, 4 + 6 = 10, and −4 − 6 = −4 + (−6) = −10.
Therefore, -4 + (-4) = -4-4 = -8
Hence, -4 + (-4) = -4-4 = -8
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One of the sixth grade classes at Washington School has 12 girls and 10 boys. What is the ratio of boys to total students in the class?
What is 4^15 or 4^3 x ^5??
Answer:
Step-by-step explanation
I hope this is the right answer but i'm pretty sure
4^3 x ^5=1073741824
if you rolled two dice what is the probability that you would roll a sum of 10
The probability of rolling a sum of 10 with two dice is 1/12.
What is probability?Probability is a measure of the likelihood of an event to occur. Many events cannot be predicted with total certainty. We can predict only the chance of an event to occur i.e., how likely they are going to happen, using it.
Given that two dice are rolled and find the probability of a sum of 10.
The sample space of the event of rolling two dice is
S = {(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6),
(2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (2, 6),
(3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (3, 6),
(4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6),
(5, 1), (5, 2), (5, 3), (5, 4), (5, 5), (5, 6),
(6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6)}
The total possible outcomes is 36.
The favorable outcomes that is the outcomes where the sum is 10 is
(1, 4), (2, 3), (3, 2).
The number of favorable outcomes are 3.
To find the probability of rolling a sum of 10 with two dice, write the sample space and then determine the number of favorable outcomes that is the outcomes where the sum is 10 and the total number of possible outcomes.
The formula to find out the probability of any event is:
\(\text{P(event)} = \dfrac{(\text{number of favorable outcomes})}{\text{total number of possible outcomes}}\)
By using the data and formula, the probability of rolling a sum of 10 is,
\(\text{P(event)} = \dfrac{(\text{number of favorable outcomes})}{\text{total number of possible outcomes}}\)
\(\text{P(rolling a sum of 10)} = \dfrac{3}{36}\)
On dividing both numerator and denominator by 3 gives,
\(\text{P(rolling a sum of 10)} = \dfrac{1}{12}\)
Hence, the required probability of rolling a sum of 10 with two dice is 1/12.
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The probability that you would roll a sum of 10 if you rolled two dice is 1/12.
We need to consider all the possible outcomes and count the favorable outcomes to determine the probability of rolling a sum of 10 when rolling two dice.
When rolling two dice, each die has six possible outcomes, ranging from 1 to 6. To find the total number of outcomes, we multiply the number of outcomes for each die: 6 * 6 = 36.
Next, we need to count the number of favorable outcomes, which are the combinations of two dice that result in a sum of 10. These combinations include:
1. Rolling a 4 on the first die and a 6 on the second die: (4, 6)
2. Rolling a 5 on the first die and a 5 on the second die: (5, 5)
3. Rolling a 6 on the first die and a 4 on the second die: (6, 4)
There are three favorable outcomes.
Therefore, the probability of rolling a sum of 10 when rolling two dice is:
Probability = (Number of favorable outcomes) / (Number of total outcomes) = 3/36 = 1/12.
Hence, the probability is 1/12.
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PLEASE HELP! WILL MARK BRAINLIEST!
Answer:
1) width = 10 + 2x
length = 20 + 2x
2) area = (10 + 2x)(20 + 2x)
= 4(5 + x)(10 + x)
3) 4(5 + x)(10 + x) = 600
(5 + x)(10 + x) = 150
50 + 15x + x^2 = 150
x^2 + 15x - 100 = 0
(x - 5)(x + 20) = 0
x = 5 feet
The width of the walkway is 5 feet.
I'LL GIVE BRAINLIEST!!
( True / False ) Force is used in aristocracy.
If true how?
If false why?
Answer:
true
Aristocracy is a form of government in which political power is held by a select few privileged people called aristocrats or nobles. Coming from a Greek word meaning “rule by the best,” aristocrats are considered the most qualified to rule because of their moral and intellectual superiority.
i literally cant even do 5th grade math pls help
insurance money/sum of all expenses * 100 %
= 90/ (650+150+130+90+80) * 100
90/1100 *100
= 90/11 * 1 (i cancelled the zeros)
= 8.18181818%
final answer = he spent 8.18 bar % of his budget on car insurance
hope this helps
PLEASE HELP!! PLEASE STEP BY STEP!
Answer:
answer is c
Step-by-step explanation:
Question 13 (Essay Worth 12 points) (Creating Graphical Representations HC) The following data shows the number of times a class of 8th graders ate a sandwich over a 30-day period. {6, 18, 23, 21, 14, 12, 24, 13, 19, 30, 25, 20, 23, 22, 27, 14, 20, 28, 24, 25} Part A: Determine the best graphical representation to display the data. Explain why the type of graph you chose is an appropriate display for the data. (6 points) Part B: Explain, in words, how to create the graphical display you chose in Part A. Be sure to include a title, axis label(s), scale for axis if needed, and a clear process of how to graph the data. (6 points)
Answer:
Part A:
The best graphical representation to display this data is a histogram. A histogram is a type of graph that displays the frequency of data in intervals or bins. In this case, the bins would represent the number of times the students ate a sandwich (e.g. 0-5, 6-10, 11-15, etc.) and the frequency would be the number of students who ate a sandwich that many times. A histogram is appropriate for this data because it allows us to see the distribution of the data and identify any patterns or outliers.
Part B:
To create a histogram for this data, follow these steps:
1. Title: Begin by giving your graph a descriptive title, such as "Number of Times 8th Graders Ate a Sandwich in a 30-Day Period".
2. X-Axis Label: Label the x-axis with the number of times the students ate a sandwich. Divide the range of the data (0-30) into equally spaced bins. One option could be to use bins with a width of 5 (0-5, 6-10, 11-15, etc.). Label each bin on the x-axis.
3. Y-Axis Label: Label the y-axis with "Frequency" or "Number of Students". The scale for this axis will depend on the number of students in the class. Determine an appropriate scale that will allow you to clearly display the data.
4. Plot Data: Count the number of students who ate a sandwich within each bin and plot the frequency for each bin. For example, if there were two students who ate a sandwich 0-5 times and three students who ate a sandwich 6-10 times, plot a bar with a height of 2 for the first bin and a height of 3 for the second bin.
5. Finalize: Add any necessary legend or color-coding to the histogram and finalize the graph.
The final histogram will show the distribution of the data, highlighting any patterns or outliers, and provide insight into the eating habits of the 8th grade class over the 30-day period.
the difference between solving for surface area and solving for volume
Answer: The Surface Area is a sum total of Area of the planes that form a surface/shape while Volume is the space enclosed within a figure/shape/surface.
The Surface Area is a 2-Dimensional concept with units m², cm² or mm² where as Volume is a 3-Dimensional concept with m³, cm³ or mm³ as units.
A bag contained 18 red marbles, 14 green marbles, and 20 blue marbles. A marble was randomly pulled, the color recorded, and then put back into the bag. This table above shows the results after 25 pulls.
What was the relative frequency of selecting a red or blue marble?
Red:8
Blue8
Green9
Number of red marbles pulled = 8
Number of blue marbles pulled = 8
Total marbles pulled = 25
Relative Frequency = Total Frequency / Total number of data values
Relative Frequency of red marble = 8/25
= 32%
Relative Frequency of blue marble = 8/25
= 32%
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Mark BRAINLIEST
y=2x−1 5x−4y=1 Is (1,1) a solution to the system? Show your work.
Answer:(x,y)=(1,1)
Step-by-step explanation: y=2x - 1 , 5x - 4y=1
y=2x-1
5x-4y=1
5x-4(2x-1)=1
x=1
y=2x+1-1
y=1
(x,y)=(1,1)
1=2 x 1 - 1
5 x 1 - 4 x 1 = 1
1=1
1=1
therefore the anwser would be (x,y)=(1,1)
Answer:
(x,y)=(1,1)
Step-by-step explanation: