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3 years ago

HELP!!! MARKING BRAINLIEST!!!

Mathematics

2 answers:

solong [7]3 years ago

8 0

Answer:

I'm pretty sure it's an open circle on 22 pointing to the right

Gwar [14]3 years ago

4 0

Answer:

It would be h>22. So graph it at 22.

Step-by-step explanation:

Was it correct?? Hope this helps!!

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Y=26-2 use a function ruler

Vika [28.1K]

Answer:

$y = 26 - 2 \\ y = 24$

<h3>PLEASE MARK ME BRAINLIEST.</h3>

3 0

3 years ago

Find the equation of the line with x-intercept 4 and y-intercept -1 in slope-intercept form.

Nastasia [14]

Answer:

Step-by-step explanation:

The slope-intercept form is y=mx+b, where m is the slope and b is the y-coordinate of the y-intercept, so we can already conclude that b=-1.

This results in y = mx - 1

We also have the x-intercept, and we know that the y-coordinate of an x-intercept is always 0. This means that we have the point (4,0). Substitute this into the formula to generate m:

0 = 4m - 1

4m = 1

m = 1/4

thus y = $\frac{1}{4}$ x - 1

7 0

3 years ago

The bike owner counted 32 wheels and 18 seats.

ivann1987 [24]

Answer:

b = 14

u = 4

Step-by-step explanation:

I manually counted because I forgot how to solve this. HAHA

Hope this helps

4 0

3 years ago

Kim’s hair grows a half inch per month. How many months will it take for her hair to grow 12 inches?

Contact [7]

Answer:

24 months

Step-by-step explanation:

Cross-multiply

0.5 inches -------------- 1 month

12 inches ---------------- x months

0.5/12 = 1/x ===> 0.5x = 12 ===> x = 12/0.5 ===> x = 24 months

3 0

3 years ago

After calculating the sample size needed to estimate a population proportion to within 0.05, you have been told that the maximum

Svetlanka [38]

Answer: 40000

Step-by-step explanation:

The formula to find the sample size is given by :-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$ , where p is the prior estimate of the population proportion.

Here we can see that the sample size is inversely proportion withe square of margin of error.

i.e. $n\ \alpha\ \dfrac{1}{E^2}$

By the equation inverse variation, we have

$n_1E_1^2=n_2E_2^2$

Given : $E_1=0.05$ $n_1=1000$

$E_2=0.025$

Then, we have

$(1000)(0.05)^2=n_2(0.025)^2\\\\\Rightarrow\ 2.5=0.000625n_2\\\\\Rightarrow\ n_2=\dfrac{2.5}{0.000625}=4000$

Hence, the sample size will now have to be 4000.

6 0

3 years ago