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Irina18 [472]
3 years ago
10

PLEASE HELP i need to do this test or i can't play ROBLOX anymore *cries in ewf*

Mathematics
2 answers:
Alisiya [41]3 years ago
7 0

Answer: j=t^2+5

Step-by-step explanation:

Svetlanka [38]3 years ago
5 0

Answer:

This is Confusing my friend...j=1. Hope I helped

Step-by-step explanation:

Rewrite the equation

Cancel out the common factor

Numerators MUST be equal sinse the expression on each side of the equation has the same denominator

Divide each term by  2  and then you have to simplify it :)

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The makers of a soft drink want to identify the average age of its consumers. A sample of 25 consumers was taken. The average ag
Lelu [443]

Answer:

a.1.90 years

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.99}{2} = 0.005

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.005 = 0.995, so z = 2.575

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

In this question:

n = 25, \sigma = 3.8

So

M = 2.575*\frac{3.8}{\sqrt{25}} = 1.90

So the correct answer is:

a.1.90 years

8 0
3 years ago
Write the expression in its written form. 3/8×(1−13)
kaheart [24]

Answer:

7 /8

0.875

Step-by-step explanation:

4 0
3 years ago
If I had $370 in my dad gave me 150 and my mom gave me 150 in my head and uncle gave me 100 and I had 30 how much money do I hav
ruslelena [56]
Just add them up so you’d get $800
5 0
3 years ago
The perimeter of a rectangular field is 200 feet. The length of the field is 7 feet more than two times the width of the field.
bulgar [2K]
X = 2y + 7 ...............(1)
2x + 2y = 200 ........(2)

Substituting the expression for x in equation (1) into equation (2) gives
2(2y + 7) + 2y = 200 .....(3)
Equation (3) simplifies to
6y = 186
Therefore y = 31 feet.
Substituting the value for y into (1) gives
x = 69 feet.
8 0
3 years ago
2cm
harkovskaia [24]

Answer:

C

Step-by-step explanation:

Retangular prisms volume= lengthxwidthxheight

therefor you have to include all three number making you answer C

7 0
3 years ago
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