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rosijanka [135]
3 years ago
13

PLease help on this math The average cost per once for glass cleaner is 7.7 cents with a standard deviation of 2.5 cent. what is

the Z-score of glass cleaner with a cost of 10.1 cents per ounce A:0.96 B:1.31 C:1.94 D:4.04 E: none of the above
Mathematics
1 answer:
Vilka [71]3 years ago
6 0
Z = (10.1 - 7.7) / 2.5 = 2.4 / 2.5 = 0.96
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The ages of three children in a family can be expressed as consecutive integers. The square of the age of the youngest child is
tensa zangetsu [6.8K]

Answer: 10, 11, & 12

<u>Step-by-step explanation:</u>

Let x represent the age of the youngest child.  

Their ages are consecutive so,

Youngest: x

Middle: x + 1

Oldest: x + 2

The age of the Youngest squared (x²) equals 8 times the Oldest [8(x + 2)] plus 4.

x² = 8(x + 2) + 4

x² = 8x + 16 + 4

x² = 8x + 20

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Since age cannot be negative, x = -2 is not valid

So, the Youngest (x) is 10

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3 years ago
Which of the following quartic functions has x=-1 and x=-2 as its only two real zeros
Brums [2.3K]
Quartic is 4th degree
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the function could be factored into
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expanded would be
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one of those is the answer

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Answer:

y=-2/3x-3



Explanation
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3 years ago
I am trying to solve for x
padilas [110]
Here how i found my answer.

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