Mathematics Middle School

Evaluate the expressions. Write your answer as a single base with a positive exponent.

a^-10x a8

(b^-7)^2x b^6

Answers

Answer 1

the answer is 8a^{-10x+1}. come on

Related Questions

Please help me!!! ASAP!

Answers

B. For every 3 rabbits there are 8 total animals.

Answer:

the answer is b

3 and 8 times two equals 6 and 16

Which term best describes the relationship between the two events described below?

When a bowler gets 12 consecutive strikes in a game, he bowls a perfect game.

A. causation

B. The events are not related.

C. correlation

D. implication

Answers

maybe C? sorry i’m not the best at this

Answer:b

Step-by-step explanation:

12 - 4 / 2x5 or 18 -4 / 2 x 5

Answers

Step-by-step explanation:

the answer is 1,4 or 0,8 question answer

12 - 4 / 2x5 is 2
1
2
−
1
⋅
4
2

5
12
−
1
⋅
4
2
x
5
12−1⋅24​x5
1
2
−
1
⋅
2

5

A tortoise moves at a speed of 26 inches in 9 seconds. What is its average speed in feet per hour?
≈ 780 ft/h
≈ 867 ft/h
≈ 855 ft/h
≈ 936 ft/h

Answers

Answer:

867 ft/h

Step-by-step explanation:

26 inches = 2.17 feet

9 seconds = 0.15 of a minute = 0.0025 of an hour

2.17 / 0.0025 = 867

867 ft/h
EXPLANATION
26 in=2.17ft
9 sec = 0.0025 hr
2.17/0.0025 = 867

What is the distance between the points? Round to the nearest tenth if necessary.

Answers

Answer:

Im pretty sure its 11.6

Step-by-step explanation:

The answer is 1.7 rounded to the nearest tenth

You don't have to solve the K and the equation for me, I know how to do it. I just don't know what to do for the table. It confused me...

Answers

Answer: x=18 y=2 and then it is also equal to 5.

Step-by-step explanation: all you have to do is find the ratio in the table, by dividing 48 by 8 = 6, this lets us know that the ration is 6 to 1. 6 is the x value and 1 is the y value.

X=18
Y=2
It’s equal to 5
I hope it’s right

Which expression is equivalent to the expression below?

15 + 10x - 14x - 9

Answers

Answer:

The last expression 9.

Step-by-step explanation:

hope this helps! let me know if I am wrong

The weather forecast calls for a total of 16 inches of snow over the next week. If it is estimated that 2.8 inches of snow will fall on Monday, 3.4 inches of snow will fall on Tuesday, 1.6 inches of snow will fall on Wednesday, 2.1 inches of snow will fall on Thursday, 1.7 inches of snow will fall on Friday, and 2.9 inches of snow will fall on Saturday. How much snow should fall on Sunday?

Answers

Answer:

1.5 inches

Step-by-step explanation:

Answer: 1.5 in

Step-by-step explanation:

i shall give the right answer brainliest

Answers

Answer:

D i think

Step-by-step explanation:

Answer:

I belive it is 4 to the power of 7

Step-by-step explanation:

Pls help this is due tmr

Answers

A hop it helps! If not am sleeyr

Answer:

D

I need to write 20 characters ignore this

Mai’s family drinks a total of 10 gallons of milk every 6 weeks.
How many weeks will it take Mai’s family to finish 3 gallons of milk?
Gallons of milk per week
OR Weeks per gallon of milk

Answers

A: gallons of milk per week

Bc: the order matter in this equation

6/3=2
2Gallons of milk per week

10 Points + brainliest.
7a + 50 = 247

Answers

Answer:

a = 28.14 (Estimated)

Step-by-step explanation:

7a + 50 = 247

=> 7a = 197

=> a = 28.1428571429 (Using Calculator)

=> a = 28.14 (Estimated)

Hoped this helped.

Answer:

a= 190

Step-by-step explanation:

7a+50=247

=7a = 247-50

= a = 197-7

= a = 190

A student has a container with a volume of 2.5 liters.
He estimates the volume to be 2.4 liters. By what percent is the​ student's estimate​ off?

Answers

Answer:

10%

Step-by-step explanation:

2.5-2.4=0.1

0.1=10%

The answer is 10% I hope it’s right

which does not represent two equivalent expressions 51 MAFS.6.EE.1.1 Which does not represent two equivalent expressions?

A.) 33=3·3·3
B.) 43=4·3
C.) 64=6·6·6·6
D.) 52=5·5

Answers

Answer: B

Explanation: 4 times 3 is equivalent to 12 and the question was asking for exponents. A has 3 multiplied by itself 3 times so that is correct. C has 6 multiplying itself 4 times so that would be correct. D has 5 Multiplying itself 2 times so that would be correct. The only one that does not represent equivalency would be B.

I shall give the right answer brainliest

Answers

Answer:

D

Step-by-step explanation:

Remember, 0.78 is pronounced 78 hundreths. Use that as a clue to find the awnser

Answer:

39 over 50 is correct

Step-by-step explanation:

I need help I think the answer is G but I'm not to sure

Answers

Answer:

I

Step-by-step explanation:

-2x + y ≥ 4

-upwards slope, solid line

x + y < 2

-downwards slope, dotted line

It’s I got G because I can be a graph

Which of the following does not have 90 as a multiple?

7
6
5
3

Answers

Answer:

7

Step-by-step explanation:

I don't completely understand what you were asking, but if you were counting by 7's, 91 would be after 84 instead of just 90.

Answer:

7

Step-by-step explanation:

7x14=91, so 1 is not a multiple of 90. Don't really understand tho, plz comment if this is not what you meant.

50 Points!

Two cars are traveling down the highway at the same speed. If the first car increases its speed by 10 kilometers per hour, and the second car decreases its speed by 10 kilometers per hour, then the first car will travel the same distance in two hours that the second car travels in three hours. What is the original speed of the cars?

Answers

Answer:

50mph

Step-by-step explanation:

Say for example car A increases by 10 miles per hour and car B decreases by 10 miles per hour. If car A2 = car B3 then by eliminating a few numbers and finally get to 50 you get the following equation.

A = 50+10

b = 50-10

A = 60

B = 40

A2 = 120

B3 = 120

120 = 120

Answer

50 mph

Step-by-step explanation:

3(s-10)=2(s+10)

3s-30=2s+20

s=50

plz help for 100 points what I need help with is in the pictures

Answers

I can’t see the picture

I need help quickly please have clear explanation and answer written in brainly

Answers

Answer:

ii

Step-by-step explanation:

i

2 = 3

2 x 11 = 22
22 - 19 = 3

3 = 14

3 x 11 = 33
33 - 19 = 14

6 = 47

6 x 11 = 66
66 - 19 = 47

10 = 91

10 x 11 = 110
110 - 19 = 91

include a step by step explanation pls ty

Answers

the division problem is 7 divided by 15. this can be written as 7/15. to do this, you first know that 15 doesn't go into 7, so you add a decimal point, and make the 7 70. 15 goes into 70 4 times. 15 times 4 is 60. 70-60 is 10. 15 doesn't go into 10, so you add another 0 and bring it down. 15 goes into 100 6 times. 15 times 6 is 90. 100-90 is 10. 15 doesn't go into 10, so you bring down another 0. 15 goes into 100 6 times. 15 times 6 is 90. 100-90 is 10. at this point, you can probably guess that the 6 will go on for a while. this means it is repeating. this means your answer is "a".

How to calculate distance between two points (-3,2) and (3,0).
And pls find the radical

Answers


√74
Explanation:
To calculate the distance use the
distance formula
d=√(x2−x1)^2+(y2−y1)^2

−−−2
where
(x1,y1)and (x2,y2)
are 2 coordinate points
The 2 points here are (-3 ,7) and (4 ,2)
let(x1,y1)=(−3,7) and (x2,y2)=
(4,2)⇒d=√(4−(−3))2+(2−7)2=√49+25=√74←in radical form
I think it’s y=3x-9?

Select the expressions that are equivalent to 9d+4d.

Answers

The answer is
d • 13
7d + 2d + 4d
13d

Answer:

The first one, second one, and the last one. not the third one because 9d+3d=12d not 13d

Step-by-step explanation:

Graph the solution to this inequality on the number line. −1/3x + 1/2 ≥ −3/4

Answers

Answer:

4.5 (4.5 units to the left of 0) Make sure to draw a solid dot over 4.5 and an arrow pointing in the right direction.

>= is the greater than or equal to symbol

Step-by-step explanation

1. Combine like terms- In this problem, the like terms are 1/2 and -3/4, so to move 1/2 over to the other side of the equation, we have to divide each side by 2/1, which is the same as multiplying each side by 2: -1/3x + 1/2 * 2 >= -3/4 * 2.

2. Separate the fraction from x- Now, we simply divide each side by -3/1, which is the same as multiplying each side as -3: -1/3x * -3 >= -3/2 * -3

3. Graph on the number line- We've found that x = 4.5. To check, substitute in 4.5 for the value of x: -1/3(4.5) + 1/2 >= -3/4. -1 >= -3/4 is a true inequality. To graph it on the number line, draw a solid dot over 4.5 and an arrow in the direction of the righthand side.

What is the distance between the points? Round to the nearest tenth if necessary.

Answers

Answer:

10/4

Step-by-step explanation:

rise over run

10/4 hope this helped <3

PLS HELP IM GONNA FAIL MATH
How long is the fence around a circular field with a radius of 340 ft.?

Answers

Answer:

so you are trying to find the circumference and the formula is 2πr

so the answer is 2 × 3.142 × 340 ft = 2136.56 ft

I think that's the answer

The answer would be 2 x 3.14 x 340ft = 2021.60

2
Which of the following representations are functions?



I only

II only

I and II only

I, II, and III

Answers

Answer:

I only                                                                

Step-by-step explanaition:

The domain (x) can not repeat in order for it to be a function.

l only

i did this last week

On a coordinate grid, point L is at (-4, 4) and point S is at (8, 4). The distance (in units) between points L and S is ___.

Input whole numbers, such as 2.

(numerical numbers as expected!)

Answers

Answer:

(12,0)

Step-by-step explanation:

count up from -4 to 8, then the other coordinate is the same so it will stay

solve 2 (3x - 1) - 6

give an explanation pls

Answers

Answer: 6x - 8

Step 1: Distribute [ Multiply 2 by the numbers in the parentheses]
6x - 2 - 6

Step 2 : Subtract [ Like terms ]
6x - 8

Answer:2(3x-4)

Step-by-step explanation:

Step 1: Distribute

2(3x-1)-6

6x-2-6

Step 2: Subtract

6x-2-6

6x-8

Step 3: Common Factor

Factor by grouping

2(3x-1)-6

2(3x-4)

RectangleA′B′C′D′ is the image of rectangleABCD after a dilation.

What is the scale factor of the dilation?

Answers

The length of the side of the original is 3 units.

The length of the side of the smaller one is 1.5

Scale = 1/2

The lenth of the side units are 3
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The biologist treated a random sample of 33 seedlings with the extract and subsequently measured the height of those seedlings. At the 0.01 significance level, is there evidence that the true average height of the seedlings treated with an extract from Vinca minor roots is less than 15.7 cm? Height15.515.815.715.115.115.515.215.715.815.416.215.516.215.515.416.314.915.315.116.115.315.415.115.314.615.115.015.315.815.514.815.214.8a. State the null and alternative hypotheses.b. Report the value of the test statistic. Round answer to 2 decimal places. (Either calculate or use software such as minitab)c. Using the p-value, do you reject the null hypothesis or fail to reject the null hypothesis? Explain your decision.d. Based on your decision in part (c), write a conclusion within the context of the problem. 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