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nlexa [21]
3 years ago
10

A triangle has side lengths of x, x+11, and 3x+5. What is the perimeter?

Mathematics
1 answer:
stich3 [128]3 years ago
6 0

Answer:

5x + 16

Step-by-step explanation:


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1) A light bulb producing company states that its lights will last an average of 1200 hours with a standard deviation of 200 hou
Ronch [10]

The mean ( average ) is given as 1200 hours.

The standard deviation is 200, sample size is 100.

Find the standard error:

√(200^2 / 100) = 20

Now calculate the confidence interval. For 95% the Z number is 1.96

Multiply Z by the standard error:

1.96 x 20 =39.2

Now find the range that the mean should be within:

1200 - 39.2 = 1160.8

1200 + 39.2 = 1239.2

The samples should be between 1160.8 and 1239.2 for a 95% confidence interval.

Since the average was 1050, which is below 1160.8 the bulbs are not in compliance.

4 0
4 years ago
Help pls
Akimi4 [234]
50x(60/100)
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6 0
3 years ago
Which of the following is a description of the data with a correlation coefficient of -0.3?
STALIN [3.7K]
The number is near zero, so it is classified as "low." Its sign is negative, so it is a ...
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6 0
3 years ago
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lauren is driving to the grocey store.Tye average distance is d,in miles,she travels over t minutes is giving is givin bu the fu
yulyashka [42]

Answer:

Average distance traveled in 15 minutes = 7.5 miles

Step-by-step explanation:

Given function:

d(t)=0.5t

where d represents average distance traveled in miles and t represents time in minutes traveled.

To find the average distance traveled in t=15 minutes.

Solution:

In order to find the distance traveled in 15 minutes, we will input t=15 in the given function.

d(15)=0.5(15)

d(15)=0.5\times 15

d(15)=7.5 miles

Average distance traveled in 15 minutes = 7.5 miles

4 0
3 years ago
Which two details support the key idea that pollution is threatening marine life?
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Answer:

Worldwide, hundreds of marine species have been negatively impacted by marine debris, which can harm or kill an animal when ingested or they become entangled, and can threaten the habitats they depend on.

This lost or abandoned gear is a major problem because it can continue to capture and kill wildlife, damage sensitive habitats, and even compete with and damage active fishing gear.

Step-by-step explanation:

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2 years ago
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