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Allisa [31]
3 years ago
12

5(x+2)7x+4 plz help idk what to do

Mathematics
1 answer:
Gennadij [26K]3 years ago
4 0
5x + 10 * 7x + 4

70x + 5x = 75x

75x + 4

hope this helps
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Eight students on a class treasure hunt found the following number of hidden chocolates. Their teacher wanted to be sure that ea
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3 years ago
Find the vertex and axis of symmetry for f(x)=2x^2-1
vfiekz [6]
<h3>Axis of symmetry is 0 and vertex is (0, -1)</h3>

<em><u>Solution:</u></em>

<em><u>Given is:</u></em>

f(x) = 2x^2 - 1

We have to find the vertex and axis of symmetry

<em><u>The general equation is given as:</u></em>

f(x) = ax^2 + bx + c

Comparing with given equation,

a = 2

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<em><u>The axis of symmetry is given as:</u></em>

x = \frac{-b}{2a}

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Thus axis of symmetry is 0

The x coordinate of the vertex is the same

x coordinate of the vertex = 0

h = 0

The y coordinate of the vertex is:

k = f(h)

k = f(0)

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Thus, y coordinate of the vertex is -1

Therefore, vertex is (0, -1)

3 0
3 years ago
apples are sold in bags of four that cost $5, or bags of six that coast $7 per bag. what is the smallest cost at which you can b
shepuryov [24]
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3 0
4 years ago
Says the directions in the picture.<br> Please help me before my next geometry class tomorrow.
SashulF [63]
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(2300² + 800² )^1/2
= 2435 meters
Thus distance is 2435 m
3 0
4 years ago
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