3 years ago

Which of the following are exterior angles? Check all that apply.

Mathematics

1 answer:

zheka24 [161]3 years ago

8 0

Answer:

2, 3, 5, 6

Step-by-step explanation:

because the angles are outside

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Mike is redecorating his office’s conferences rooms. When they were last painted it took 20 pints of paint. The paint he is usin

german

Previously the volume of paint consumed was: 20 pints

New paint is available in unit of liters.

since, 1 pint = 0.47 liter

20 pint = 9.46 liters (10 liters approx.)

Mike will need to buy 10 liters of paint.

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3 years ago

A desktop is shaped like a semicircle with a diameter of 28 what is the area of the desktop?

OlgaM077 [116]

Answer:

307.72

Step-by-step explanation:

if the diameter is 28 then the radius is 14 (half of the diameter)

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3 years ago

What is the answer to thus problem

Dominik [7]

The numerator is 16 and the denominator is 3.

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3 years ago

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which expression is equivalent to the given expression? 3 (2a+5)....a) 11a. b)6a+15. c) 6a+5. or d) 21a

Afina-wow [57]

3(2a+5)
6a+15 divide both sides by 6
a=2.5

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4 years ago

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True or False: A race car driver tested his car for time from 0 to 60 mph, and for 20 tests obtained a mean of 4.85 seconds with

sattari [20]

Answer:

The given statement is false.

Step-by-step explanation:

We are given the following in the question:

95% confidence interval: (4.53,5.18)

Sample mean, $\bar{x}$ = 4.85 seconds

Sample size, n = 20

Alpha, α = 0.05

Sample standard deviation, σ = 1.47 seconds

Degree of freedom = n - 1 = 19

95% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 4 and}~\alpha_{0.01} = \pm 2.09$

$4.85 \pm 2.09(\dfrac{ 1.47}{\sqrt{20}} )\\\\ = 4.85 \pm 0.69 \\\\= (4.16 ,5.54)$

Thus, the calculated confidence interval is different from the given confidence interval.

Hence, the given statement is false.

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4 years ago