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2 years ago

Please help! What is the division problem represented by this model?

Mathematics

1 answer:

Cerrena [4.2K]2 years ago

3 0

Answer:

the answer is 42/100

42 blocks are shaded out of 100

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X + 23 = −4 need help

laila [671]

Answer:

-27

Step-by-step explanation:

x+23−23=−4−23

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2 years ago

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1. Place a _____________ on the number line for the number in the expression.

nevsk [136]

Answer:

the answer is a equation

Step-by-step explanation:

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3 years ago

A professor records the difference between the marks scored by the students in the class test last week and those scored in the

dezoksy [38]

Answer: $(10.82\ , 13.18)$

Step-by-step explanation:

The confidence interval for population mean is given by :-

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

Given : Sample size : n= 35 , large sample (n>30)

Mean difference : $\overline{x}=12$

Standard deviation : $\sigma=3$

Significance level : $\alpha=- 1-0.999=0.001$

Critical value : $z_{\alpha/2}=z_{0.0005}=3.4807567$

Now, the 99.9% confidence interval for the mean difference between the marks scored last week and marks scored this week by all the students will be :-

$12\pm\ (3.4807567)\dfrac{2}{\sqrt{35}}\\\\=12\pm1.18\\\\=(10.82\ , 13.18)$

Hence, the 99.9% confidence interval for the mean difference between the marks scored last week and marks scored this week by all the students = $(10.82\ , 13.18)$

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2 years ago

The Graf family made two pizzas. They ate 1 and 1/8 pizza before watching a movie, and 1/2 pizza more after the movie. What is a

Lorico [155]

6/8ths are left you have to cross multiply to get the answer

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3 years ago

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The value of 8 is Hundred Thousand

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3 years ago