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3 years ago

6

What is the average miles per gallon for all new cars? Using Consumer Reports, a random sample of 35 new cars gave an average of

21.1 mpg.
What is the variable?

1 answer:

sweet [91]3 years ago

8 0

The variable is the average miles per gallon.

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Which statement is true about the equation fraction 3 over 4z = fraction 1 over 4z − 3 + 5?

uranmaximum [27]

Answer:

It has two solutions.

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Solve and check 5(g - 5) - (5 - g) =12. show work

aleksandrvk [35]

$5 (g-5) - (5-g) = 12\\5g - 25 -5 +g =12\\6g -30 = 12\\6g = 42\\g = 7$

Check:

$5(7-5) - (5-7) = 5 (2) - (-2) = 10 + 2 = 12$

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3 years ago

Estimate then find the sum 63,824+29,452

ASHA 777 [7]

90,000 becuase 63,824 is rounded down to 60,000 and 29,452 is rounded up to 30,000. 60,000+30,000 is 90,000

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3 years ago

Let f(x)= x^2-4x-c. Find a nonzero value of c such that f(c)=c.

Dimas [21]

Answer:

The nonzero value of c will be:

$c = 6$

Step-by-step explanation:

Given the function

$f\left(x\right)=\:x^2-4x-c$

$f\left(c\right)=\:c^2-4c-c$

as

$f(c) = c$

so

$c=\:c^2-4c-c$

switching the sides

$c^2-4c-c=c$

subtract c from both sides

$c^2-4c-c-c=c-c$

$c^2-6c=0$

$c\left(c-6\right)=0$

Using the zero factor principle

$\:If}\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)$

$c=0\quad \mathrm{or}\quad \:c-6=0$

so, the solutions to the quadratic equations are:

$c=0,\:c=6$

Therefore, a nonzero value of c will be:

$c = 6$

5 0

3 years ago

Area of the blue shaded region??? please show work

konstantin123 [22]

Answer:

21

Step-by-step explanation:

you first look at the circle

next you see the numbers in the circle

after that you multiply the numbers together

so, 3 x 7 = 21

7 0

3 years ago