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2 years ago

Please help me I’ll give your brainiest

Mathematics

2 answers:

levacccp [35]2 years ago

8 0

Graph B is the answer

JulsSmile [24]2 years ago

7 0

First I would isolate the "y" in the inequality(you don't have to but it makes the inequality look simpler):

y - 5 > 2x - 10 Add 5 on both sides

y > 2x - 5

[This is kind of the same form as y = mx + b ("m" is the slope, "b" is the y-intercept (when x = 0)), except there is a sign(< , > , ≤, ≥) instead of an equal sign. So your slope is 2, and your y-intercept is -5.]

Only when the sign is ≤ or ≥ ("less/greater than <u>or equal to</u>"), the line is a solid line. When the sign is < or >, the line is a dotted line.

Based on the inequality, "y" is greater than the line (2x - 5), so the shaded area would be above the line. And because the sign does not have a line underneath, it is a dotted line.

Your answer is B

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Write the phrase as an algerbraic expression. 4 times the sum of a number and 20

Iteru [2.4K]

4 x (n + 20), pretty simple. :)

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3 years ago

HELP ASAP !! Select the correct answer from each drop-down menu.

Sindrei [870]

Point A' is at (-2,-2)

Point D' is at (-2,4)

Just multiply each coordinate by 2

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2 years ago

The brand manager for a brand toothpaste must plan a campaign designed to increase brand recognition. He wants to first determin

bulgar [2K]

We need to find out how many adults must the brand manager survey in order to be 90% confident that his estimate is within five percentage points of the true population percentage.

From the given data we know that our confidence level is 90%. From Standard Normal Table we know that the critical level at 90% confidence level is 1.645. In other words, $Z_{Critical}=1.645$ .

We also know that E=5% or E=0.05

Also, since, $\hat{p}$ is not given, we will assume that $\hat{p}$ =0.5. This is because, the formula that we use will have $\hat{p}(1-\hat{p})$ in the expression and that will be maximum only when $\hat{p}$ =0.5. (For any other value of $\hat{p}$ , we will get a value less than 0.25. For example if, $\hat{p}$ is 0.4, then $1-\hat{p}=0.6$ and thus, $\hat{p}(1-\hat{p})=0.24$ .).

We will now use the formula

$n=(\frac{Z_{Critical}}{E})^2\hat{p}(1-\hat{p})$

We will now substitute all the data that we have and we will get

$n=(\frac{1.645}{0.05})^2\times0.5(1-0.5)$

$n=(32.9)^2\times0.25$

$n=270.6025$

which can approximated to n=271.

So, the brand manager needs a sample size of 271

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2 years ago

A group of 247 people are traveling in vans to a zoo. The greatest number of people who can travel in

NeTakaya

Answer:

Step-by-step explanation:

247 divided by 15 equals 16 and a whole bunch of nunbers

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2 years ago

The measure of angle KMJ??

Irina18 [472]

44

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2 years ago