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Dmitry [639]
3 years ago
13

I am confused by this can someone help me, please! Everything is on the photo.

Mathematics
2 answers:
Marina CMI [18]3 years ago
6 0
Thank you for posting your question on Brainly. 

E) a^4 = Some number to the power of 4
D) 4x = Four times an unknown value
C) z ÷ 4 = Quotient of a variable and four
B) y - 4 = Four less than an unknown value
A) b + 4 = Four more than some number


I hope my answer is satisfactory to you. Thank you. 
Free_Kalibri [48]3 years ago
5 0
It's trivial..

1. B
2. C
3. E
4. D
5. A
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Of my 135 students, 20% have cowboy boots. How many students wear cowboy boots?
Alekssandra [29.7K]
We can start with the whole of 135, and find out 10% of that.

135/10 or 135 divided by 10= 13.5

This means that 1/10 of it is equal to 13.5, and that’s 10%. To find 20%, you want to do 13.5 x 2, and this will get you 27.

The answer is 27.
6 0
2 years ago
#10 am I correct <br> Can you explain <br> If I'm incorrect then what is the answer
Bad White [126]
Yes, u are correct, hope this helped
6 0
3 years ago
The expression 3^2 ∙ 3^n simplifies to 3^20.
tiny-mole [99]

Answer: 18

<u>Step-by-step explanation:</u>

3² * 3ⁿ = 3²⁰

3⁽²⁺ⁿ⁾  = 3²⁰

 2 + n = 20

<u> -2      </u>   <u>  -2</u>

       n = 18

7 0
2 years ago
A line represented by y = 2x − 3 and a line perpendicular to it intersect at R(2, 1). What is the equation of the perpendicular
neonofarm [45]

Answer:

y = -1/2x + 2

Step-by-step explanation:

y = 2x - 3. The slope here is 2. A perpendicular line will have a negative reciprocal slope. To find the negative reciprocal, just flip the slope and change the sign.

slope = 2 or 2/1.....flip it.....1/2....change the sign...-1/2. So our perpendicular line will have a slope of -1/2.

y = mx + b

slope(m) = - 1/2

(2,1)....x = 2 and y = 1

now we sub and find b, the y intercept

1 = -1/2(2) + b

1 = -1 + b

1 + 1 = b

2 = b

so ur equation is : y = -1/2x + 2 <===

and u can check it with ur points....(2,1)

y = 2x - 3

1 = 2(2) - 3

1 = 4 - 3

1 = 1 (yep...it checks out)

8 0
2 years ago
Help hurry !!!!! I need this
Dmitry [639]

Answer:21

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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