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scoray [572]
3 years ago
5

What kind of line is y=3? horizontal, vertical,slanted?

Mathematics
1 answer:
Firdavs [7]3 years ago
7 0

As there is no x axis it will have to be vertical as the y axis is already vertical


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Find the area of the triangle when b=8 and h=14
babunello [35]

Answer:

56 square units

Step-by-step explanation:

The formula for the area of a triangle of base b and height h is:

A = (1/2)(b)(h)

Here, that area is   A = (1/2)(8)(14) = 56 square units

4 0
3 years ago
3t + 15 = 45. solve pls​
Talja [164]

Answer:

t=10

Step-by-step explanation:

3t + 15 = 45

3t = 30

t = 10

8 0
2 years ago
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Which is an arithmetic sequence?
puteri [66]
B) is an arithmetic sequence because you are adding by 2 each time. The other sequences don’t match this criteria.
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5 0
3 years ago
In a​ study, researchers wanted to measure the effect of alcohol on the hippocampal​ region, the portion of the brain responsibl
ziro4ka [17]

Answer:

The hippocampus volumes in the alcoholic adolescents are less than the normal volume of 9.02 cm³

Step-by-step explanation:

Let x= the hippocampus volumes in the alcoholic adolescents

We'll conduct a hypothesis test at the 0.01 significance level with

Null hypothesis: x = 9.02 cm³

Alternate hypothesis: x < 9.02 cm³

A sample of 13 alcoholic adolescents gives the parameters

size=N= 13

mean=M= 8.12 cm³

standard deviation= s= 0.8 cm³

According to the sample, with 99% confidence, t statistic for the value X=9.02 can be found using the formula:

t=\frac{X-M}{\frac{s}{\sqrt{N} } } where

  • M is the sample mean (8.12)
  • s is the standard deviation of the sample (0.8)
  • N is the sample size (13)

If we put these numbers in the formula:

t=\frac{9.02-8.12}{\frac{0.8}{\sqrt{13} } } =4.056

One tailed critical value for the sample with 12 degrees of freedom (sample size-1) in 99% confidence level is 2.681.

Since t value (4.056) is bigger than the critical value, we fail to reject the alternate hypothesis, therefore reject the null hypothesis and accept alternate hypothesis.

5 0
3 years ago
Giving brainiest and thanking you if your answer is correct
r-ruslan [8.4K]

Answer:

-4

Step-by-step explanation:

4 0
2 years ago
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