Ask question

Ask question

All categories

3 years ago

5

I don’t understand question 4?

1 answer:

borishaifa [10]3 years ago

8 0

Me either but its C.

You might be interested in

Solve the equation (linear equation)<br><br> <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

The triangles below are congruent and the corresponding parts are marked

Ilia_Sergeevich [38]

Answer:

Step-by-step explanation:

6 0

2 years ago

Geometry problem below

Doss [256]

Answer:

A quadrilateral has 4 right angles

Step-by-step explanation:

In a conditional statement

If hypothesis, then conclusion

OR

Conclusion, if hypothesis.

The hypothesis goes with the if part.

8 0

3 years ago

Use intercepts to graph each linear function.<br><br>x-3y=9

kotegsom [21]

Answer:

y=1/3x-3

Step-by-step explanation:

6 0

3 years ago

MZR<br> R<br> S<br> 10x - 8<br> 98 °<br> 12x + 4<br> Q<br> T

alekssr [168]

Answer:

Please clarify what you asking

Step-by-step explanation:

5 0

2 years ago