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hoa [83]
3 years ago
7

Which phrase could be represented by this expression? A. seven less than one-fourth of a number B. four times the difference of

a number and seven C. one-fourth the difference of a number and seven D. seven less than four times a number
Mathematics
1 answer:
e-lub [12.9K]3 years ago
4 0
I could help answer the question but, what is the expression?
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Shalnov [3]

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I need to know what the variable is and please give me the equation.
Mumz [18]

Answer:

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Step-by-step explanation:

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6 0
2 years ago
In ΔOPQ, the measure of ∠Q=90°, OQ = 20, PO = 29, and QP = 21. What is the value of the sine of ∠P to the nearest hundredth?
Rufina [12.5K]

Answer:

  0.69

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you that the sine is the ratio ...

  Sin = Opposite/Hypotenuse

For angle P, the opposite side is OQ. The hypotenuse is the longest side, PO. So, the sine is ...

  sin(P) = OQ/PO = 20/29

  sin(P) ≈ 0.69

3 0
3 years ago
Read 2 more answers
A study of the amount of time it takes a mechanic to rebuild the transmission for a 2005 Chevrolet Cavalier shows that the mean
iogann1982 [59]

Answer:

0.1469

Step-by-step explanation:

Given from the question;

Mean=8.4 hrs=μ

Standard deviation=1.8 hrs=δ

Sample size, n=40

Let  x=8.7

z=(x-μ)÷(δ÷√n)  

Find z(8.7)

z=(8.7-8.4)÷(1.8÷√40)

z={0.3×√40}÷1.8=1.05409

z=1.0541

Read from the  standard normal probabilities table

P(z>1.0541)

=0.1459

3 0
3 years ago
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