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Westkost [7]
3 years ago
5

If p(x)=2x^2-4 and q(x)=x-3, what is (p•q)(x)

Mathematics
1 answer:
olasank [31]3 years ago
6 0
(p of q)(x) means that q(x) is inserted into p(x).

p(q(x)) = 2(x - 3)^2 - 4

Expand (x - 3)^2.

p(q(x)) = 2(x^2 - 6x + 9) - 4

p(q(x)) = 2x^2 - 12x + 14

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Four less than five times a number is equal to 11
SVETLANKA909090 [29]
5*3=15
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4 years ago
Samuel wants to buy cookies for his friend. The diameter of a cookie is 20 inches. What is the cookies area? Round to the neares
olya-2409 [2.1K]

Answer:

314.16

Step-by-step explanation:

Area=πr2

d=2r

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7 0
3 years ago
Penelope has $1,459.75 in her bank account. To pay her bills, she writes 4 checks for $200.25, $359.45, $125, and $299.35. Then
sammy [17]
1,459.75 - 200.25 - 359.45 - 125.00 - 299.35 = 475.70

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8 0
3 years ago
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Tom has 12.42 centimeters of yarn. If he wants to make the yarn into pieces that are 0.54 centimeters long, how many pieces can
natta225 [31]

Answer:

23 pieces of yarn

Step-by-step explanation:

12.42cm divided by 0.54cm = 23

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5 0
3 years ago
What is the measure of angle z in this figure?
astraxan [27]
Hello!

I've attached a photo for reference.

Lines A and B form straight angles, which  measure 180 degrees. That means that - 

m∠x + m∠y = 180°
m∠y + m∠z = 180°
m∠z + 43° = 180°
43° + m∠x = 180°

Since you're trying to find z, use the solvable equation with z in it:

m∠z + 43° = 180°
180 = z + 43
137 = z

Answer:
m∠z = 137°

3 0
3 years ago
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