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iogann1982 [59]

3 years ago

15

Find the measure of TRS

1 answer:

nignag [31]3 years ago

4 0

Answer: The sum of the measures of the angle inside of a triangle add up to 180 degrees. That's all we're doing over here. And so let's see if we can simplify this a little bit. So these two guys-- 90 plus 90's going to be 180, so you get 180 minus theta …

Author: Sal Khan

Step-by-step explanation:

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What is 1/5 as a decimal

schepotkina [342]

The answer is 0.2 because 1 divided by 5 is 0.2

8 0

3 years ago

Please show your work!<br> 25% of 80

spin [16.1K]

Answer:

20

Step-by-step explanation:

25% change to .25

.25 x 80

Just solve 25 x 80 which equals 2000

then move decimal over twice giving you 20.00 or 20

4 0

3 years ago

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In a metal fabrication process, metal rods are produced to a specified target length of 15 feet. Suppose that the lengths are n

Leto [7]

Answer:

95% Confidence interval: (14.4537 ,15.1463)

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 15 feet

Sample mean, $\bar{x}$ = 14.8 feet

Sample size, n = 16

Alpha, α = 0.05

Sample standard deviation, σ = 0.65 feet

Degree of freedom = n - 1 = 15

95% Confidence interval:

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

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 15 and}~\alpha_{0.05} = \pm 2.1314$

$14.8 \pm 2.1314(\dfrac{0.65}{\sqrt{16}} ) \\\\= 14.8 \pm 0.3463 = (14.4537 ,15.1463)$

is the required confidence interval for the true mean length of rods.

3 0

3 years ago

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Nora drew a scale drawing of the middle school. The scale she use was 1 inch: 7 feet. The gym is 17 inches in the drawing. How i

emmainna [20.7K]

Answer: 119

Step-by-step explanation: if it’s 1:7,

then you’d have to do 17x7

5 0

2 years ago

Sara is building a triangular pen for her pet rabbit. If two of the sides measure 8 feet and 15 feet, the length of the third si

Nesterboy [21]

Answer:

1) 13 ft

Step-by-step explanation:

1) 13+8=21 which is greater than 15. Would be a triangle.

2) 7+8=15 This would be a single line, not a triangle.

3) 3+8<15 This would be a single line, not a triangle.

2) 15+8=23 This would be a single line, not a triangle.

3 0

3 years ago

Read 2 more answers