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Radda [10]
4 years ago
15

1. Find the domain of the function shown. Write your answer in interval notation.

Mathematics
1 answer:
blondinia [14]4 years ago
5 0

2 & 4 has same answers


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Rewrite the function y= x^2 + 14x + 4 in vertex form
Step2247 [10]
Vertex form is basically commplete the square
y=a(x-h)^2+k


y=x^2+14x+4
take 1/2 of 14 and square it, (7^2=49)
add that and its negative to right side
y=x^2+14x+49-49+4
factor perfect squaer
y=(x+7)^2-49+4
y=(x+7)^2-45

answer is A
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3 years ago
A toy store sells assorted bags of marbles sold in small or large bags the table show the number of each color of marble in the
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Answer:

10

Step-by-step explanation:

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3 years ago
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Colin invests £1500 into a savings account. The bank gives 4% compound interest for the first 3 years and 5% thereafter. How muc
fomenos

1500(1+0.04)^3 = 1687.30

1687.30(1+0.05) = 1771.67 to the nearest pound: 1772

6 0
2 years ago
The results of a poll show that the percent of people who want a new restaurant is in the interval (62%, 88%). There are 109,482
uranmaximum [27]

Answer:

(67879,96344)

Step-by-step explanation:

I took the test

8 0
3 years ago
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X=2y-4<br>7x+5y=-66 <br> what is the x- value​
Gwar [14]

Answer:

x = -8

Step-by-step explanation:

x = 2y - 4 --- Equation 1

7x + 5y = -66 --- Equation 2

I will be using the substitution method to solve this.

Substitute x = 2y - 4 into Equation 2:

7x + 5y = -66

7(2y - 4) + 5y = -66

Evaluate.

14y - 28 + 5y = -66

Evaluate like terms.

19y - 28 = -66

Isolate 19y.

19y = -66 + 28

     = -38

Find y.

y = -38 ÷ 19

y = -2 --- Equation 3

Substitute y = -2 into Equation 1:

x = 2y - 4

x = 2(-2) - 4

Evaluate.

x = -4 - 4

x = -8

5 0
2 years ago
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