Someone help plz!!!!!!!!

Mathematics

1 answer:

Gemiola [76]2 years ago

7 0

8^(-1-3+1) = 8^-3
answer is
B. the sum of the exponents is -3
D. the value of the expression is 1/512
E. an equivalent expression is 8^7*8^-10 (answer will be 8^-3)

You might be interested in

Please help ASAP If f(x) = x^2-6x+2 and g(x) =sqrt x find a.) (fog) (x) b.) (gof) (-2)

Rudik [331]

$\large\begin{array}{l} \left\{\!\begin{array}{l} \mathsf{f(x)=x^2-6x+2}\\ \mathsf{g(x)=\sqrt{x}}\\ \end{array}\right. \end{array}$

$\large\begin{array}{l} \textsf{a) }\mathsf{(f\circ g)(x)}\\\\ =\mathsf{f\big[g(x)\big]}\\\\ =\mathsf{\big[g(x)\big]^2-6\cdot g(x)+2}\\\\ =\mathsf{\big[\sqrt{x}\big]^2-6\sqrt{x}+2}\\\\\\ \therefore~~\boxed{\begin{array}{c}\mathsf{(f\circ g)(x)=x-6\sqrt{x}+2} \end{array}}\qquad\checkmark \end{array}$

______

$\large\begin{array}{l} \textsf{b) }\mathsf{(g\circ f)(-2)}\\\\ =\mathsf{g\big[f(-2)\big]}\\\\ =\mathsf{\sqrt{f(-2)}}\\\\ =\mathsf{\sqrt{(-2)^2-6\cdot (-2)+2}}\\\\ =\mathsf{\sqrt{4+12+2}}\\\\ =\mathsf{\sqrt{18}}\\\\ =\mathsf{\sqrt{3^2\cdot 2}}\\\\ =\mathsf{3\sqrt{2}}\\\\\\ \therefore~~\boxed{\begin{array}{c}\mathsf{(g\circ f)(-2)=3\sqrt{2}} \end{array}}\qquad\checkmark \end{array}$

______

If you're having problems understanding this answer, try seeing it through your browser: brainly.com/question/2181559

$\large\textsf{I hope this helps. :-)}$

Tags: composite function composition evaluate algebra

7 0

2 years ago

1. The following statement is false. Highlight the two words that should be

mafiozo [28]

Answer:

highlight input and output.

Step-by-step explanation:

sorry if this doesn't work. i'm not 100% sure but its worth a try.

4 0

2 years ago

This is 7th grade math..........

e-lub [12.9K]

Answer:

Step-by-step explanation:

Okay here's my reasoning:

they are telling us that 3 and 5 put together is 8. While this could be either A or D, this question has already told us that it equals 8. This equation is basically more better suited to 8=3+5 because this is show that 8 can be found by putting 3 and 5 together.

Hope this helps!

3 0

2 years ago

Find the equation of the graphs indicated on the diagram below.

spayn [35]

Answer:

Step-by-step explanation:

7 0

2 years ago

In New York state the sales tax rates vary by county. In the Bronx, the sales tax rate is 8.75%. Use this information to answer

Lostsunrise [7]

Answer:

27.

Step-by-step explanation:

i dont know if this is on a test but I hope i have the right answer for you.

6 0

2 years ago