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3 years ago

Help plz with 17,18,19

Mathematics

2 answers:

Brilliant_brown [7]3 years ago

3 0

17 is C, 18 is J,and 19 is B.We just and a math test in this and I got an A+

kykrilka [37]3 years ago

3 0

18.) is J because 1/2 divided by 6 is 1/12

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Make a subject of r = square root of a / 3

hodyreva [135]

Multiply both sides by 3 to get:

3r = sqrt(A)

Square both sides:

9r^2 = A

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3 years ago

Joan earns $9.25 per hour. She worked 37.6 hours last week. What was the amount of her check?

slava [35]

37.6*9.25=$347.8 without deductions

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3 years ago

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An educational psychologist wishes to know the mean number of words a third grader can read per minute. She wants to make an est

MrRa [10]

Answer:

85% level of the confidence interval is

(26.337, 26.662)

Step-by-step explanation:

Explanation:-

Given the size of the sample 'n' = 295

Mean of the sample x⁻ = 26.5

The Standard deviation of the Population = 2.7

85% level of the confidence interval is determined by

$(x^{-} - Z_{0.15} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.15} \frac{S.D}{\sqrt{n} })$

Critical value Z₀.₁₅ = 1.036

85% level of the confidence interval is determined by

$(x^{-} - Z_{0.15} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.15} \frac{S.D}{\sqrt{n} })$

$(26.9 -1.036 \frac{2.7}{\sqrt{295} } , 26.5 + 1.036 \frac{2.7}{\sqrt{295} })$

( 26.5 - 0.1628 , 26.5+0.1628)

(26.3372,26.6628)

7 0

3 years ago

Can you guys help me wit number 7 please nn thanks

Vaselesa [24]

Answer:

10 to the power 3

Step-by-step explanation:

10 to the power 6 divided by 10 to the power 3 is 10 to the power 3.

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2 years ago

How would you express the area of the rectangle using the Distributive Property?

andreyandreev [35.5K]

Answer:

The area of the rectangle can be found using two different expressions: a(b + c) or ab + ac. The equality of these expressions, a(b + c) = ab + ac, is the distributive property.

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3 years ago

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