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3 years ago

The expression 8^x is equivalent to 32^y, where x and y are postive. what is the value of y/x

Mathematics

1 answer:

Daniel [21]3 years ago

6 0

Step-by-step explanation:

8^x = 2^3x

32^y = 2^5y

=> 3x = 5y

y/x = 3/5 (B)

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Which expression is equivalent to 3 7/8-6 1/4

Serhud [2]

get a common denominator which is 24

3 7/8 = 3 21/24

6 /4 = 6 6 /24

3 21/24 - 6 6 /24

big number minus small number take sign of larger

6 6/24

- 3 21/24

-------------

5 30/24

3 21/24

--------------

2 9/24

2 3/8

the sign of the larger is negative

-2 3/8

7 0

3 years ago

Please help thank you

beks73 [17]

Answer:

The answer is the first R

Step-by-step explanation:

Because I said so

4 0

3 years ago

HELP for (ii)…..how do we find a?

Mariana [72]

By using the information given on the graph, we can see that a = 3.

<h3>How to find the value of a?</h3>

Here we have an exponential of the form:

$y = p*a^x$

And by looking at the graph, it passes through (0, 4) and (2, 36), so we can write:

$4 = p*a^0\\\\36 = p*a^2$

From the first equation we get that p = 4, replacing that on the second one we get:

$36 = 4*a^2\\\\36/4 = 9 = a^2\\\\\sqrt{9} = 3 = a$

So we conclude that a = 3.

If you want to learn more about exponential equations:

brainly.com/question/11832081

#SPJ1

7 0

2 years ago

If sin ⁡x=7/25, and 0 < x < π/2, what is cos⁡(x−3π/2)?

Likurg_2 [28]

Answer:

$Cos(x-\frac{3\pi}{2})=-\frac{7}{25}$

Step-by-step explanation:

Remember that $cos(x-y)=cos(x)cos(y)+sin(x)sin(y)$

Then,

$cos(x-\frac{3\pi}{2})=cos(x)cos(\frac{3\pi}{2})+sin(x)sin(\frac{3\pi}{2})\\$

But $cos(\frac{3\pi}{2})=0$ and $sin(x)=\frac{7}{25}$

Then

$cos(x-\frac{3\pi}{2})=cos(x)*0+\frac{7}{25}*sin(\frac{3\pi}{2})\\=\frac{7}{25}*(-1)=\frac{-7}{25}$

5 0

3 years ago

13.) Solve for M<br> 14.) Solve for A<br> 17.) Solve for H

brilliants [131]

Answer:

See Below (Isolate the variables)

Step-by-step explanation:

13) d = 4AM solve for M

Divide both sides by 4A

$\frac{d= 4AM}{4A}$

$\frac{d}{4A} = M$

14) $\frac{A}{6}$ = f+h solve for A

Multiply both sides by 6

A = 6( f+h)

15) h - m = qb solve for H

Add m to both sides

h - m = qb

+ m +m

h = qb + m

3 0

4 years ago