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3 years ago

ABCD is a rectangle. Angle D = 3x + 20 + 7x - 3x. Solve for x

Mathematics

1 answer:

Elodia [21]3 years ago

4 0

Answer:

angle D equal to 3 X + 20 + 7 x minus 3 x

=90 degree equal to x minus 3 X + 20

7 X equal to 70 X equal to 10

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X + 8 = -6 need this asap ty

Leno4ka [110]

Answer:

Solution given:

x+8=-6

x=-6-8=-14

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3 years ago

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3 years ago

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3 years ago

Richard Earns $10.50 per hour at his summer job he worked a total of 275 hours over the summer.If 40% of the money he earned was

Rom4ik [11]

Answer:

$1155

Step-by-step explanation:

Richard earns $10.50 per hour and he worked for 275 hours.

First find out the total amount he earns.

Total = 275 hours x $10.50 = $2887.50

40% of the earnings go to saving.

Now we find out how much is 40% of the earnings.

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4 years ago

If f(x)=x^2−8x and g(x)=−12x^2 what is g(f(−4))?

Korolek [52]

Answer:

-27648

Step-by-step explanation:

In this problem, we are looking for the function of g in terms of the function f. Simply put, we just replace the variable x in the function g with f(-4).

Step 1, writing g(f(-4)):

$g(f(-4))=-12(f(x))^2$

Great! Let us substitute f(x) with the given expression.

Step 2, substituting and simplifying:

$\\g(f(-4))=-12(x^2-8x)^2\\g(f(-4))=-12((-4)^2-8*(-4))^2\\g(f(-4))=-12(16+32)^2\\g(f(-4))=-12*2304\\g(f(-4))=-27648$

g(f(-4) is $\fbox{-27648}$ .

I hope this helps! Let me know if you have any questions :)

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3 years ago