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Ganezh [65]
2 years ago
15

A Chinese restaurant sells a dozen egg rolls for $8.

Mathematics
1 answer:
Alla [95]2 years ago
6 0
A 48 and for 40 dollars you can buy 5 egg rolls
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Determine, using the intermediate value theorem, if the function F(x)=x^3+2x-1 has a zero on the interval [0,1]. Justify your an
SSSSS [86.1K]

Plug x = 0 into the function

f(x) = x^3 + 2x - 1

f(0) = 0^3 + 2(0) - 1

f(0) = -1

Note how the result is negative. The actual number itself doesn't matter. All we care about is the sign of the result.

Repeat for x = 1

f(x) = x^3 + 2x - 1

f(1) = 1^3 + 2(1) - 1

f(1) = 2

This result is positive.

---------------------------

We found that f(0) = -1 and f(1) = 2. The first output -1 is negative while the second output 2 is positive. Going from negative to positive means that, at some point, we will hit y = 0. We might have multiple instances of this happening, or just one. We don't know for sure. The only thing we do know is that there is at least one root in this interval.

To actually find this root, you'll need to use a graphing calculator because the root is some complicated decimal value. Using a graphing calculator, you should find the root to be approximately 0.4533976515

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3 years ago
X-y=8<br> Write the equation in slope-intercept form and then state the slow and y intercept
Ugo [173]
Y=x-8

the slope is 1 and the y intercept is -8
8 0
3 years ago
What is the solution to <br> 5x+9-3x=18+15<br><br> A.x=8<br> B.x=12<br> C.x=21<br> D.x=3
Vlad [161]
Your answer will be B) x=12

1)5x-3x
2) move 9 to the other side (change signs)
3)18+15-9
4) 2x= 24 (divide 2 from both sides
5)x=12

hope this helps
7 0
3 years ago
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A regular polygon has an odd number of sides. Which statement is true about the lines of reflection for the polygon that will ma
UNO [17]
"The lines of reflection are parallel to the sides of the polygon" is the statement that is true about the lines of reflection for the polygon that will map the shape onto itself. The correct option among all the options that are given in the question is the third option or option "C". I hope that the answer has helped you.
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3 years ago
M(-5, 2) and N(5, 2) are the endpoints of the segment MN on the coordinate plane. What is the length of MN¯¯¯¯¯¯ ?
stira [4]
Use the distance formula

\sqrt{(2-2)^2+(5--5)^2}=\sqrt{100}=10
5 0
3 years ago
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