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o-na [289]
3 years ago
13

PLEASE ANSWER! I DONT UNDERSTAND

Mathematics
1 answer:
vfiekz [6]3 years ago
6 0

Step-by-step explanation:

I think the answer is:

A. y=-3+2x

D. y=5x-4

Hope it helps

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1.
Evgen [1.6K]

Answer:

Null hypothesis H_0; \mu=5

Alternative hypothesis H_a; \mu\neq 5

Step-by-step explanation:

Consider the provided information.

The shower by an adult is 5 minutes.

The mean amount of time that college students spend in the shower is significantly different from 5 minutes. In a sample of 15 students, he found the average time was 4.29 minutes and the standard deviation was 0.75 minutes.

We need to determine the appropriate null and alternative hypotheses.

A null hypothesis is there is no statistical significance between the two variables.

An alternative hypothesis is there is a statistically significant relationship between two variables.

Therefore the required null and alternative hypothesis are:

Null hypothesis H_0; \mu=5

Alternative hypothesis H_a; \mu\neq 5

3 0
2 years ago
The length of a rectangle is 4 centimeters more than its width. if the ratio of the length to width is seven to five, find the d
Marina86 [1]
L = 4 + w
l/w = 7/5
l = 7w/5

7w/5 = 5 + w
7w = 25 + 5w
2w = 25
w = 12.5

l = 4 + 12.5
l = 16.5

the dimensions are 16.5 x 12.5 cm
6 0
3 years ago
Point slope form and standard form
SVEN [57.7K]

The point slope form, , is useful in situations involving slope and the location of one or more points. The standard form, , is usually easier to use when we need to make algebraic calculations. When needs or knowledge change, we can convert an equation from one form into another.

8 0
2 years ago
Read 2 more answers
PLEASE HELP WILL GIVE BRAINLY-IST
Reika [66]

Answer:

39 athletes

Step-by-step explanation:

There is a total of 45 people on the bus.  This INCLUDES the athletes (A), 2 coaches and 4 managers.

Therefore, we need to sum A, 2 and 4 and equal it to 45:

2 + 4 + A = 45  so we need to used equation d.

To calculate how many athletes are on the bus, find the value of A:

                                         2 + 4 + A = 45

Subtract 2 from both sides:  4 + A = 43

Subtract 4 from both sides:        A = 39

8 0
2 years ago
A plane is flying due east at 200 miles per hour when it encounters a wind W = 30i + 40j.
Scilla [17]

Answer:

a)South East due to wind turbulance.

Step-by-step explanation:

B)Point south west to go east

7 0
3 years ago
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