Question 1 (1 point)

Mathematics

1 answer:

Kruka [31]2 years ago

4 0

Answer:

1.) q=p-mn

2.) -6

3.) 10

Step-by-step explanation:

1.) add q to both sides you should get q+mn=p. then subtract mn from both sides and you should get q=p-mn.

2.) for 5c+23=c-1 you add 1 on both sides and should get 5c+24=c. Then subtract 5c from both sides and get 24=-4c. divide both sides by -4 and your answer should be -6.

3.) replace each number with their value. 4(2)^2-3. Then solve. 4(2)^2=16, then subtract 3 from 16 and get 13. For the next equation again replace each letter with the given value. 3(2)^2-3(3). 3(2)^2=12 and 3(3)= 9. Subtract 12 and 9 and your answer is 3. Now subtract the first equation answer from the second equations answer and you get 10

You might be interested in

One side of a rectangle is 3 inches shorter than the other side, and the perimeter is 54 inches. What are the dimensions of the

vitfil [10]

Answer:

2x + 2(x - 3)

Step-by-step explanation:

4 0

3 years ago

in the 2010 new york city marathon 42429 people finished the race and received a medal before the race the medals had to be orde

Rufina [12.5K]

Xxxxxxxxxcxxxxxxxxxxx

5 0

3 years ago

If f(x)=8-10x and g(x) =5x +4, what is the value of (fog)(-2)?

swat32

Answer:

Step-by-step explanation:

Any function is evaluated by putting the argument value where the variable is, then doing the arithmetic. When the argument is another function value, that function value is evaluated first.

The "o" in (fog) is a stand-in for the "ring operator" (∘) which is the operator used to signify a composition. A composition is evaluated right-to-left. That means (f∘g)(x) ≡ f(g(x)). The value of g(x) is found first, and is operated on by the function f.

Writing the composition in the form f(g(x)) lets you identify the layers of parentheses. As with any expression evaluation, the Order of Operations applies. It tells you to evaluate the expression in the innermost parentheses and work your way out.

To evaluate (f∘g)(-2) = f(g(-2)), we must first evaluate g(-2). That is ...

g(x) = 5x +4

g(-2) = 5(-2) +4 = -10 +4 = -6 . . . . . put -2 where x is, do the math

Now that we know g(-2) = -6, we know this expression is ...

f(-6) = 8 -10(-6) = 8 +60 = 68 . . . . . substitute for x in 8-10x

Then the value we're looking for is ...

(f∘g)(-2) = 68