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steposvetlana [31]

1 year ago

10

In this figure, the unshaded region represents a painting and the shaded region represents a frame around the painting. All angl

es are right angles. (a) What is the area of the painting? Show your work.
(b) What is the area of the frame? Show your work.

1 answer:

hichkok12 [17]1 year ago

7 0

Answer:

a. 57 b. 178

Step-by-step explanation:

6x9.5 = 56

13.5x10 = 135

135 - 57 = 78

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Likurg_2 [28]

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3 years ago

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3 years ago

Estimate to the nearest integer.<br> 21<br> O 3<br> O 4<br> O 5

Rudiy27

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4 0

2 years ago

Find a real number c such that x^(2)+12x+c is a perfect square trinomial.

balu736 [363]

Answer:

The value of c is 36

Step-by-step explanation:

Now, we fine the perfect square polynomial, we need to have the expression of the form:

$a^2+b^2+2ab$

so this can be written as a perfect square as: $a^2+b^2+2ab= (a+b)^2$

Now the expression given to us is:

$x^{2}+12x+c$

so when c is 36, we will get:

$x^{2}+12x+c= x^(2)+12x+36$

Now, this can be re-written as:

$x^{2}+2*6*x+6^2$

so here we can see that it is of the form:

$a^2+b^2+2ab$

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$x^(2)+2*6*x+6^2= (x+6)^2$

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8 0

2 years ago