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3 years ago

2. Gerald was given the following problem to solve for the length of the "?". He has made a mistake in his work.

Mathematics

1 answer:

Degger [83]3 years ago

5 0

Answer:

x = 18.7

Step-by-step explanation:

Gerald's answer is almost correct.

He just needs to switch the 14 and the x.

it should be

24/x = 18/14

solve for x by cross multiplication

18x = (24)(14)

18x = 336

x = 18.7

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The mean work week for engineers in start-up companies is claimed to be about 64 hours with a standard deviation of 8 hours. Kar

blondinia [14]

Answer:

1.) mean

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3.) 0.0028

4) Yes

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Alternative hypothesis ; H1 : μ < 64

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70; 45; 55; 60; 65; 55; 55; 60; 50; 55

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3 years ago

Find the slope of the line going through the points (0, -5) and (-2,1)

kvasek [131]

Answer:

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General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (0, -5)

Point (-2, 1)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]: $\displaystyle m=\frac{-5-1}{0--2}$
[Fraction - Denominator] Simplify: $\displaystyle m=\frac{-5-1}{0+2}$
[Fraction - Numerator] Subtract: $\displaystyle m=\frac{-6}{0+2}$
[Fraction - Denominator] Add: $\displaystyle m=\frac{-6}{2}$
[Fraction] Divide: $\displaystyle m=-3$

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3 years ago