3 years ago

Area of this shape with 2cm and 2cm and 4cm and 7cm

Mathematics

1 answer:

Annette [7]3 years ago

6 0

18cm is the answer of this question

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Which of the following is the x-intercept for 3y - 4x = 8?

expeople1 [14]

The answer is E because 3 x 0 - 4 x -2 = 8

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3 years ago

The heights of a random sample of 100 women are recorded. The sample mean is 65.3 inches and the sample standard deviation is 3

Keith_Richards [23]

Answer: B. $65.3\pm(2)(0.3)$

Step-by-step explanation:

The confidence interval for the population mean is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size : n= 100

Sample mean : $\overline{x}=65.3\text{ inches}$

Standard deviation: $\sigma=3 \text{ inches}$

Level of confidence = 0.95

Significance level : $\alpha=1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

Then, 95% confidence interval for the population mean will be :-

$65.3\pm (1.96)\dfrac{3}{\sqrt{100}}\\\\\approx65.3\pm(2)(\dfrac{3}{10})=65.3\pm(2)(0.3)$

8 0

3 years ago

Read 2 more answers

Can someone please help??? I can’t figure this out. Pleaseeee

Norma-Jean [14]

Answer:

120°=1

Step-by-step explanation:

step 1 do 2/1

step 2 cut braket and ans will be 53

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2 years ago

You start a business making painted flower containers. You spend 300$ on paint and 5$ on each container. You charge 20$ for each

tia_tia [17]

Without paint, you're profiting $15 per container with the $5 original cost

300/15 = 20

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3 years ago

4 over 25 as a decimal

BabaBlast [244]

Answer:

0.16

Step-by-step explanation:

Simply divide 4 by 25

4/25=0.16

Hope this helps : )

5 0

3 years ago