Mathematics High School

Exponents and Exponential Functions Unit Test

someone PLEASE oh PLEEEEEAAAASSSSEEEEE explain to me all of the answers cuz i just can't think straight, plus, mathematics are literally making mah brain go "FLOP"

HMMMM -(10)^-1
A. -1/10
B. -1/-1^10
C. 1/10
D. 10

(-7.4)^0

A. -1
B. -7.4
C. 0
D. 1

-1/a^-2
A. -a2
B. -2/a
C. -2a
D. a^2

5^4 x 5^7

A. 125^11
B. 15^11
C. 5^28
D. 5^11

Simplify this expression:

(3)^10 (3)^-9

A. 3
B. 1/3
C. 9^-90
D. 9

(t^8)^2

A. 2t^16
B. t^10
C. t^16
D. t^64

(5t^3)^-4

A. 625/t^12
B. 20/t^7
C. 1/625t^12
D. 1/20t^7

(ok i'm sorry if i don't write the rest of the questions/options, it's just my back is hurting from leaning to long and my fingers hurt for typing to long and my brain is burning up because of how many numbers and letters there are in this test......)

(IF YOU KNOW THE REST OF THE QUESTIONS AND OPTIONS PLEASE WRITE IT ALONG IN YOUR ANSWER!!! I NEED IT ASAP OR ELSE I'M GETTING AN F- IN MY GRADE ._.)

Answers

Answer 1

Answer:

1:B

2:A

3:A

4:D

5:C

6:D

7:A

Step-by-step explanation:

Related Questions

The value of y varies directly with x. When y = 3.5, x = 2.
What is the value of y when x is 16?

Answers

in order to do this problem, you have to divide 16 by 2 to see how many times x was multiplied. you would find that x was multiplied 8 times, so in order to find y, you would multiply 3.5 eight times.

y = 28 when x = 16

find the slope of the line of best fit shown below.

Answers

The Answer is A, 1/2

Solve. Dante's mom made 2 liters of cocoa. Dante and his 7 friends each drank a serving of cocoa. If each serving is 235 milliliters, how much cocoa is left?

Answers

Answer:

120 millimeters or 0.12 liters

Step-by-step explanation:

To solve this question :

we have to convert liters to millimetersmultiply the serving of coca by the number of people that consumed the cocasubtract the answer gotten from the step above from 2 litters

1 liter = 1000 millimeter

2 liters = 2 x 1000 = 2000mm

8 people drank cocoa = 8 x 235 = 1880mm

Amount of cocoa left over = 2000 - 1880 = 120mm or 0.12 liters

a) What is the rate of each pump?

(b) Which pump is the slowest?

Pump A

Pump B

Pump C
(c) How much fluid does each one pump in 3 hours?

Answers

Answer:

pump A

Step-by-step explanation:

help a gal out please​

Answers

Answer: negative, linear association

Step-by-step explanation:

whoever does this question for me is the best person ever. i will mark brainlest. please help. (question shown above)

Answers

Answer: 1

Step-by-step explanation:


Which equation represents the line that passes through
points (-1, 3) and (4, -2)

Answers

Answer:

y= -1x+2

Step-by-step explanation:

i hope this helps :)

An equation is written

ac-b=1

Based on the equation, which is a true statement?​

Answers

Answer:

Step-by-step explanation:

Eli made 2 peanut butter jelly sandwiches and cut each one into fourths. How many 1/4 sandwich pieces can Eli have?

Answers

She could have 8 pieces of 1/4 sandwiches

Form a quadrilateral with exactly one pair of parallel sides.

Answers

Answer:

A trapezoid is a quadrilateral with exactly one pair of parallel sides.

Step-by-step explanation:

hope this helped

What is the circumference of a circle that has a diameter of 5 inches?

Answers

Answer:

5π ≃ 15,7 in

Step-by-step explanation:

which expression is equivalent to -11 - (-7)?
A.-11-7
B.11 -7
C.11 +7
D.-11 +7

Answers

Answer:

d. -11+7

Step-by-step explanation:

two negatives make a positive.

i hope this helps :)

HELP DUE IN 10 MINS! Use right triangle trig to solve for the missing angles. Round all answers to the nearest degree (whole number).



x=??

Answers

Answer:

relationship between base and perpendicular is given by tan angle

tan ?=perpendicular./base

tan?=5/16

?=tan-¹(5/16)=17.35=17

The Fast Car Repair Shop charges a $60 fee plus $30 an hour for labor. Jeff's Repair Shop charges $45 an hour. How many hours of labor, x, would make Fast Car Repair Shop's charges less the same as Jeff's Repair Shop's charges?​

Answers

It would take 5 hours

HELLPPPPPPP PLEASEEE​

Answers

Answer:

3

Step-by-step explanation:

Find the volume of the cone.
Either enter an exact answer in terms of # or use 3.14 for and round your final answer to the nearest hundredth.

Answers

Answer:

v ≈ 78.54

Step-by-step explanation:

v = π [tex]r^{2}[/tex]  [tex]\frac{h}{3}[/tex]

so v ≈ 78.54

A ladder is placed against a wall, such that it touches the top of the wall 6 meters above the ground. The ladder is inclined at an angle of 53 degrees. Find how far the ladder is from the foot of the wall.

Answers

[tex]Your[/tex] [tex]answer[/tex] [tex]would[/tex] [tex]be.[/tex]

[tex]3.46[/tex] [tex]meters[/tex]

[tex]-Yaoii[/tex]

Can someone help me please I have been trying for hours but I can’t do it

Answers

Answer:

Step-by-step explanation:

a = 7.5 points

b = 22.5 points

c = 85 points

d = for every mystery solved 2.5 points are subtracted

HELP PLEASE ASAP
which is the most accurate estimate of 25% of 39?
A. 1/3x40
B. 1/2x40
C.1/4x40
D.2/3x40

Answers

Answer:

c. 1/4 x 40

Step-by-step explanation:

25% = 1/4

so the most logical option would contain 1/4, which is c.

what is y=x+2and 2x+y=8

Answers

Answer:

1. x=y−2

2. -1/2y + 4

Step-by-step explanation:

Which mapping does not represent a function?

Answers

A
it leaves a number out, resorting it to not be a function.

Pls help!!!! Will give points! And brainlest

Answers

Answer: 3/7

Step-by-step explanation:

3/4 of 4/7 is the same as 0.75*4/7 which equals 0.429 or as a fraction is 3/7

Answer: 3/7

Step-by-step explanation:  look below

help plz giving brainlest

Answers

Answer:

The answer is F 10, 20, 30, 40, 50 For every 1 hour you earn 10 dollars and it keeps going

The number 70 is decreased to 41. What is the percentage by which the number was decreased, to the nearest tenth of a percent?

Answers

Answer:

Decreased percent = 41.4 % (Approx.)

Step-by-step explanation:

Given:

Old number = 70

New number = 41

Find:

Decreased percent

Computation:

Decreased number = 70 - 41

Decreased number = 29

Decreased percent = [29 / 70]100

Decreased percent  = 41.42%

Decreased percent = 41.4 % (Approx.)

“a number n equals 7 more than half the number” can be written as what

Answers

Answer:

Step-by-step explanation:

n=n/2 +7

Anthony bought 3 chicken wings for $3.00. What's the unit cost of one wing?

Answers

Answer; $1
Explanation 3 divided by 3

Answer:

im pretty sure it $1

Step-by-step explanation:

i might be wrong

I just need help on these two questions ​

Answers

Answer:

Q1) y= 2

Q2) y= 4

Step-by-step explanation:

Q1) If you sub in x as -1, 2 to the power of -1 is 0.5. You always solve the power first, not the multiplication. So then you do 0.5 times 4 and you get 2.

Q2) If you sub in x as 0, anything to the power of 0 becomes 1. 2 to the power of 0 is 1. Then you do the multiplication, 4 times 1 = 4

need helps pleaseeeeeeeeeeee

Answers

Answer:7-11

Step-by-step explanation:I am not sure but I think you just put 7 and 11 hope this helps but have a answer on the side just in case I am wrong

9x + 10y = -11
9x + 10 * 7 = -11
9x + 70 = -11
9x + 70 - 70 = -11 - 70
9x = -81
9x / 9 = -81 / 9
x = -9

I need help on this and the first one who answer correctly gets a BRANLIST​

Answers

Answer:

I think the answer is B not sure

Help me with this question please

Answers

Step-by-step explanation:

The answer which you have chosen is correct.

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