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MakcuM [25]
3 years ago
15

Solve the equation 8x squared - 4 =28

Mathematics
1 answer:
Yuri [45]3 years ago
4 0
8x² - 4 = 28
8x² = 28 + 4
8x² = 32
x² = 32/8
x² = 4
x = <span>±2


</span>
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A drawer contains 4 red socks, 7 white socks, and 11 blue socks. Without looking, you draw out a sock and then draw out a second
Nana76 [90]
Total socks = 4 + 7+ 11 = 22
Red = 4
White = 7

P(red, then white) = (4/22)(7/21) = 2/33

Answer: 2/33
8 0
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wariber [46]

Answer:

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Step-by-step explanation:

7x + 68 = 2x + 103

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Simplify the expression:<br> 2(3n+4)-2(2n+5)
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First use distributive property:
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Group like terms:
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Add like terms:
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4 0
2 years ago
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8_murik_8 [283]
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4 0
3 years ago
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Marta's jump rope is 10" shorter than four times the length of Dilbert's rope. If both their ropes laid together end to end and
sladkih [1.3K]

Answer:

Marta's rope is 94"

Step-by-step explanation:

D = dilberts rope length

M = marta's rope length

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M = 4D-10

both their ropes laid together end to end and measured 120" long

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Substitute 4D-10 for M in the second equation

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Combine like terms

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Add 10 to each side

5D-10+10 =120+10

5D =130

Divide by 5

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D =26

Now we need to find M

M+D = 120

M +26 = 120

Subtract 26 from each side

M = 120-26

M = 94

3 0
3 years ago
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