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2 years ago

A net of a storage trunk is shown. Which is the trunk's surface area?

Mathematics

1 answer:

Readme [11.4K]2 years ago

8 0

3,680 sq. in.

(36*20)*4= 2880
(20*20)*2= 800

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svlad2 [7]

Answer:

|x - 4| ≤ 0.3

Step-by-step explanation:

The actual width = 4

Maximum variation, x = 0.3

Hence, the lowest width position based on actual width and possible variation is :

4 - 0.3 ≤ x ≤ 4 + 0.3

3.7 ≤ x ≤ 4.3

7 0

3 years ago

Lian is deciding which of two gyms to join. Each gym charges a monthly rate plus a one-time membership fee.Lian correctly wrote

Vanyuwa [196]

Both gyms charge the same monthly rate and the same membership fee

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3 years ago

Read 2 more answers

Each year, all final year students take a mathematics exam. It is hypothesized that the population mean score for this test is 8

drek231 [11]

Answer:

95% Confidence interval: (96.06,103.94)

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 85

Sample mean, $\bar{x}$ = 100

Sample size, n = 30

Alpha, α = 0.05

Population standard deviation, σ = 11

95% Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$100 \pm 1.96(\frac{11}{\sqrt{30}} ) = 100 \pm 3.94= (96.06,103.94)$

(96.06,103.94) is the 95% confidence interval for the population mean test score.

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2 years ago

Someone pls pls pls help ASAP <br> I’ll give brainliest I promise just pls help me

Brums [2.3K]

Answer:

Answer attached below.

8 0

2 years ago

Pls help no links if u can pls explain the steps I’ll be grateful

valkas [14]

Answer:

WX = 9

Step-by-step explanation:

WY is the entire line - this tells you that the length of the entire line is 11.

XY is a section of the line, and WX is the section you need to find the length for. Since it is given that XY is of length 2, we can find the length of WX by subtracting the length of XY from WY.

11 (WY) - 2 (XY) = 9.

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2 years ago