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barxatty [35]
3 years ago
8

What is the length of the hypotenuse in the right triangle shown below? 45° 45 6

Mathematics
2 answers:
IrinaVladis [17]3 years ago
8 0

Answer:

option A

Step-by-step explanation:

let the hypotenuse be x

take 45 degree as reference angle and use cos rule

cos 45 = adjacent/hypotenuse

1/\sqrt{2 = 6/x

do cross multiplication

6*\sqrt{2 = x *1

6\sqrt{2} = x

Drupady [299]3 years ago
6 0

Answer:

Answer is a

Step-by-step explanation:

Thats what i got

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In a study published on January 31, 2011 in The Proceedings of the National Academy of Sciences, researchers randomly assigned 1
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Answer:

d.

Step-by-step explanation:

Hello!

The objective of this test is to know if aerobic exercise modifies hippocampus activity. A random sample of 120 elderly men and women was taken and divided into two groups.

Group 1: Walked around a track three times a week.

Group 2: Did a variety of less aerobic exercises, including yoga and resistance training with bands.

After a year their brains were scanned showing that group 1 had an increase of 2% in their hippocampus and group 2 showed a decrease of 1.4%

a. True, this type of observational study can be the prelude to a more formal statistical study.

b. True, the explanatory variable is "type of exercise", it's the variable that the investigator suspects influence the hippocampus volume.

c. True, the objective of this experiment is to test if there is any modification on hippocampus volume, that's why the volume of the hippocampus was measured, before and after a year of exercise.

d. False, this is an observational study, you cannot establish a causal relationship between the two variables. Just inform you that there seems to be an association. To be able to generalize the results to all elderly population you need a more formal statistical experiment to support your conclusions.

I hope it helps!

5 0
3 years ago
write an expression that can be used to find the nth term for each sequence listed below.7, 13, 19, 25, 31,.... -1,2,5,8,11,14
LenKa [72]
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5 0
2 years ago
Simon has $40 to buy baseballs for her team's practice. Each baseball cost $3. Which inequality represents this situation?
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4 0
3 years ago
Read 2 more answers
Tori examined the pattern of exponents in the table.
Lynna [10]

Answer:

B,C,E

Step-by-step explantion

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7 0
2 years ago
A gardener is planting two types of trees:Type A is three feet tall and grows at a rate of 15 inches per year.Type B is four fee
Sliva [168]
First, construct two equations.
Then, equal the two equations to each other like this -

x will be the years.

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Therefore, the trees will be the same height in 5 years.
7 0
2 years ago
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