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3 years ago

Solve for x.

Mathematics

1 answer:

AlladinOne [14]3 years ago

6 0

Answer:

a is answer because of bodmas rule

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Please answer this correctly without making mistakes

marysya [2.9K]

Answer:

A digit that makes this sentence true is 4.

Step-by-step explanation:

Since the first digit in the number to the left is 3, you simply have to find a digit greater than 3. Here are the possibilities:

and

Out of any of these you can choose, I chose 4.

4 0

3 years ago

What is 457.8 divide 70 use number sense to help you

Luba_88 [7]

The answer to your question is 6.54

8 0

3 years ago

Read 2 more answers

Question#4 will give brainliest!

algol13

Answer:

c brainliest

Step-by-step explanation:

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2 years ago

What is the probability a sample of 90 test takers will provide a sample mean test score within 10 points of the population mean

Elena-2011 [213]

Answer:

0.658 is the probability that a sample 90 test takers will provide a sample mean test score within 10 points of the population mean of 502.

Step-by-step explanation:

The following information is missing:

The standard deviation of population is 100.

We are given the following information in the question:

Population mean, μ = 502

Standard Deviation, σ = 100

Sample size, n = 90

Standard error =

$\dfrac{\sigma}{\sqrt{n}} = \dfrac{100}{\sqrt{90}} = 10.54$

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(test score within 10 points)

$P(492 \leq x \leq 512) \\\\= P(\displaystyle\frac{492 - 502}{10.54} \leq z \leq \displaystyle\frac{512-502}{10.54}) \\\\= P(-0.9487 \leq z \leq 0.9487)\\= P(z \leq 0.9487) - P(z < -0.9487)\\= 0.829 -0.171 = 0.658 = 65.8\%$

$P(492 \leq x \leq 512) = 65.8\%$

0.658 is the probability that a sample 90 test takers will provide a sample mean test score within 10 points of the population mean of 502.

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3 years ago

Given: SSA triangle, A=62°, a=5cm, b=15cm.

sattari [20]

I’m sure your answer it’s the second one 48:70:24.3 cm

5 0

2 years ago