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3 years ago

Please help ASAP Thank you

Mathematics

1 answer:

ad-work [718]3 years ago

8 0

Answer:

we need the whole question

Step-by-step explanation:

post the whole question

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Solve the equation (linear equation) <img src="https://tex.z-dn.net/?f=8%5E%7B2x%2B7%7D%20%3D%20%28%5Cfrac%7B1%7D%7B32%7

Minchanka [31]

Answer: $x=-1$

Step-by-step explanation:

By the negative exponent rule, you have that:

$(\frac{1}{a})^n=a^{-n}$

By the exponents properties, you know that:

$(m^n)^l=m^{(nl)}$

Therefore, you can rewrite the left side of the equation has following:

$(\frac{1}{8})^{-(2x+7)}=(\frac{1}{32})^{3x}$

Descompose 32 and 8 into its prime factors:

$32=2*2*2*2*2=2^5\\8=2*2*2=2^3$

Rewrite:

$(\frac{1}{2^3})^{-(2x+7)}=(\frac{1}{2^5})^{3x}$

Then:

$(\frac{1}{2})^{-3(2x+7)}=(\frac{1}{2})^{5(3x)}$

As the base are equal, then:

$-3(2x+7)=5(3x)$

Solve for x:

$-6x-21=15x\\-21=15x+6x\\-21=21x\\x=-1$

8 0

3 years ago

A dairy farm had 9 pastures and 630 cows. The same number of cows are placed in each pasture. How many cows are in each pasture?

rjkz [21]

Answer:

Step-by-step explanation:

if a dairy farm has 630 cows and the same number of cows are placed in each pasture the total number of cows in each pasture is 630

8 0

3 years ago

- 3/4 (x + 2) = 6 the / is a fraction can someone help

Oliga [24]

-3/4(x+2)=6
-3/4 is turned into a decimal, -0.75
-0.75(x+2)=6 distribute -0.75 to x and 2 (multiply)
-0.75x-1.5=6 add -1.5 under 6

-0.75x=7.5 divide -0.75 on both sides
-0.75x/-0.75 = 7.5/0.75
x=10

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3 years ago

Find the value of 5! A. 25 B. 20 C. 120 D. 15

zvonat [6]

Answer:

C 120

Step-by-step explanation:

7 0

2 years ago

Find the Value of A. a/15 = 5

mamaluj [8]

Answer:

A/15=5

so multiply 15*5

you would get 75

therefore a=75

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers