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posledela
3 years ago
6

Please help me with this question

Mathematics
2 answers:
Slav-nsk [51]3 years ago
3 0
30 miles per hour..........
sukhopar [10]3 years ago
3 0
It’s 30

Bc... 3x3= 9 then add the 0 so 90
Then 3x4=12 then add the 0 so 120

I really hope that help
What am I doing I have to do a post test rn‍♀️‍♀️‍♀️
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One recipe makes 8 1/2 cups of potato salad. If one serving is 1/2 cup, how many servings does the recipe make?
Aleonysh [2.5K]

Answer:

17

Step-by-step explanation:

8.5 / 0.5

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A large loan company specializes in making automobile loans for used cars. The board of directors wants to estimate the average
diamong [38]

Answer:

z-interval: (-1.64, 1.64)

90% Confidence interval:  (7954,8446)

Step-by-step explanation:

We are given the following in the question:

Sample mean, \bar{x} = $8,200

Sample size, n = 225

Alpha, α = 0.10

Sample standard deviation, s = $750

90% Confidence interval:

\mu \pm z_{critical}\dfrac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.10} = \pm 1.64

z-interval: (-1.64, 1.64)

8200 \pm 1.64(\dfrac{750}{\sqrt{25}} ) = 8200 \pm 246 = (7954,8446)

(7954,8446) is the required confidence interval.

4 0
3 years ago
I NEED ANYBODYS HELP PLZ
Ghella [55]

Answer:

Triangular Prism Volume : 560 ft³, Rectangular Prism Volume: 1,400 ft³, and Total Volume of the Composite Figure: 1,960 ft³

Step-by-step explanation:

Triangular Prism Volume Formula: 1/2(L)(W)(H)

1/2(10)(14)(8)

= 560 ft³

Rectangular Prism Volume: L x W x H

10 x 14 x 10

= 1,400 ft³

1,400 ft³ + 560 ft³

= Total Volume of the Composite Figure: 1,960 ft³

4 0
3 years ago
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