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Dovator [93]
2 years ago
13

Over the weekend, Ella at ¼ box of cereal, and Finnley at ⅜ of the same box. What portion of the box of cereal did they eat in a

ll?
Mathematics
1 answer:
wariber [46]2 years ago
8 0

Answer:

Step-by-step explanation:

This equation is simple all you have to do is add 1/4+3/8  and that would be 5/8.

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Which pair of numbers is relatively prime?
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The answer tour question is D
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3 years ago
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The zeros of the function f(x)=(x+2)^2 - 25 are?
zloy xaker [14]
<u>Zeros of the function</u>
f(x) = (x + 2)² - 25
f(x) = (x + 2)(x + 2) - 25
f(x) = x(x + 2) + 2(x + 2) - 25
f(x) = x(x) + x(2) + 2(x) + 2(2) - 25
f(x) = x² + 2x + 2x + 4 - 25
f(x) = x² + 4x + 4 - 25
f(x) = x² + 4x - 21
x² + 4x - 21 = 0
x = <u>-(4) +/- √((4)² - 4(1)(-21))</u>
                      2(1)
x = <u>-4 +/- √(16 + 84)</u>
                   2
x = <u>-4 +/- √(100)
</u>               2<u>
</u>x = <u>-4 +/- 10
</u>            2<u>
</u>x = -2 <u>+</u> 5<u>
</u>x = -2 + 5    x = -2 - 5
x = 3           x = -7
f(x) = x² + 4x - 21
f(3) = (3)² + 4(3) - 21
f(3) = 9 + 12 - 21
f(3) = 21 - 21
f(3) = 0
(x, f(x)) = (3, 0)
or
f(x) = x² + 4x - 21
f(-7) = (-7)² + 4(-7) - 21
f(-7) = 49 - 28 - 21
f(-7) = 21 - 21
f(-7) = 0
(x, f(x)) = (-7, 0)

<u>Vertex</u>
<u>X - Intercept</u>
<u />-b/2a = -(4)/2(1) = -4/2 = -2

<u>Y - Intercept</u>
y = x² + 4x - 21
y = (-2)² + 4(-2) - 21
y = 4 - 8 - 21
y = -4 - 21
y = -25
(x, y) = (-2, -25)
<u />
5 0
3 years ago
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Identify the initial amount a and the growth or decay factor b in the exponential function. y = 0.01025^x
Nastasia [14]

Answer:

The initial amount a = 1

The growth or decay factor  = 0.01025

Step-by-step explanation:

The exponential function.

y = 0.01025^x

The initial amount a = 1

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The exponential equation can be rewritten as Y = 1(0.01025)^x

8 0
3 years ago
6. A number j increased by 8 *
e-lub [12.9K]

Answer:

6. b. j+ 8

7. b. n - 2

8. a. Addition

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12. b. Divided by

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8 0
2 years ago
Alex is conducting a survey for a car company. She decides to start by interviewing some people in her neighborhood. She prepare
fiasKO [112]

Answer:

2. Alex sent the questionnaire only to those who live near her.

Step-by-step explanation:

Given scenario is :

Alex is conducting a survey for a car company. She decides to start by interviewing some people in her neighborhood.

She prepares a questionnaire and emails it to 50 neighbors who own cars. Of those neighbors, 24 respond.  

We can see that Alex sent the questionnaire to only her neighbors or people who live near her, so this will be the reason the sample will be biased.

4 0
3 years ago
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