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Effectus [21]
3 years ago
13

Somebody please help. Hurry!

Mathematics
2 answers:
yan [13]3 years ago
6 0

Answer:

the answer is A.

Step-by-step explanation:

mart [117]3 years ago
3 0

Answer:

A. 30.27

Step-by-step explanation:

<h2>because it is 30.27</h2>
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Roberta jogs 3 laps the first day, 5 laps the second day, 7 laps the third day,
iris [78.8K]

Answer:

Sixth day

Step-by-step explanation:

Keep adding 2 until you get to 13

8 0
3 years ago
Very important!! Solve the inequality 6r + 30 ≥ 12 or -r &gt; 12 (the question is important for high school application c:)
Fofino [41]

First simplify the one inequality, 6r + 30 greater than or equal to 12 just divide by 6 then subtract 30 from both sides of the inequality. You should get r is greater than or equal to -3. For this one you need to reverse the inequality symbol then divide both sides by -1 to get a positive r, and you get r is less than -12. It's not A because there's two solutions, and it's not D for the same reason. It's not C because r isn't greater than -12. In conclusion it's B because it correctly represents the solutions that make the inequality true. I hope this helps you on your high school application :)

7 0
3 years ago
A plant is 20inches tall. If the plant grows 2h inches each week for the next 4 weeks and h inches for each of the 2 weeks after
Grace [21]

Answer:

y(6,h) = 24 + 8h

Step-by-step explanation:

We are given the following in the question:

Height of plant = 20 inches

Growth of plant for next 4 week = 2h inches.

Growth of plant each week after 4 weeks = 2 inches.

Thus, the expression for plant height is given by

y = 20 + 4(2h) + (w-4)2, w\geq 4\\y =20 + 8h+2w-8, w\geq 4\\y(w,h) = 12 + 8h + 2w\\\text{If }w \leq 4\\y(w,h) = 20 + 4(2h)\\y(w,h) = 20 + 8h

We have to find the expression for plant's height in 6 weeks.

Putting w = 6, we get,

y(6,h) = 12 + 8h + 2(6)\\y(6,h) = 24 + 8h

is the required expression.

6 0
3 years ago
Read 2 more answers
In a study, researchers wanted to measure the effect of alcohol in the development of the hippocampal region in adolescents. The
lbvjy [14]

Answer:

Kindly check explanation

Step-by-step explanation:

Given :

Sample size, n = 30

Tcritical value = 2.045

Null hypothesis :

H0: μ = 9.08

Alternative hypothesis :

H1: μ≠ 9.08

Sample mean, m = 8.25

Samole standard deviation, s = 1.67

Test statistic : (m - μ) ÷ s/sqrt(n)

Test statistic : (8.25 - 9.08) ÷ 1.67/sqrt(30)

Test statistic : - 0.83 ÷ 0.3048988

Test statistic : - 2.722

Tstatistic = - 2.722

Decision region :

Reject Null ; if

Tstatistic < Tcritical

Tcritical : - 2.045

-2.722 < - 2.045 ; We reject the Null

Using the α - level (confidence interval) 0.05

The Pvalue for the data from Tstatistic calculator:

df = n - 1 =. 30 - 1 = 29

Pvalue = 0.0108

Reject H0 if :

Pvalue < α

0.0108 < 0.05 ; Hence, we reject the Null

4 0
3 years ago
X-y=10 in the form of y=mx+b
creativ13 [48]
Y = 10+x
(Moving the x)

y = x+10
(Reordering the x so it becomes y=mx+b)

The equation is y = x + 10

Hope this helps! :)
4 0
4 years ago
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