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4 years ago

Can you help with this question please!

Mathematics

1 answer:

mezya [45]4 years ago

5 0

The triangle would be 40 cm because 20x4=80 and you always divide it by 2 on the triangles so 40 cm. Hope this helps!

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Sean tried to drink a slushy as fast as he could. He drank 5 milliliters of slushy each second and finished all

castortr0y [4]

Answer:

graph like this:

Step-by-step explanation:

First, in 5 seconds, we know that he drinks 25 mL of slushy. We know this because 1 second is 5 mL, so 5 seconds is 25 mL. So, your graph should be going from the 5 second to 25 mL mark, then the 10 second and 50 mL mark, then the 15 mL and 75 mL mark, and so on.

6 0

3 years ago

The set of whole numbers is greater than -2

Law Incorporation [45]

Yes it because any positive number is greater a negative number

8 0

3 years ago

Read 2 more answers

What is 2x + 2 when z = 0 ?

slavikrds [6]

Answer:

when x=0

$2x + 2$

$= 2 \times 0 + 2$

$= 0 + 2$

$= 2$

hope it helps you

make me brainliest if u r satisfied

8 0

3 years ago

Use the sample data and confidence level given below to complete parts (a) through (d). A drug is used to help prevent blood c

Alla [95]

Answer:

a) $\hat p=\frac{148}{4167}=0.036$

b) $0.0355 - 1.96\sqrt{\frac{0.036(1-0.036)}{4167}}=0.030$

$0.0355 + 1.96\sqrt{\frac{0.036(1-0.036)}{4167}}=0.041$

Step-by-step explanation:

The sample proportion have the following distribution

$\hat p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

Part a

The estimated proportion for this case can be calculated like this:

$\hat p=\frac{148}{4167}=0.036$

Part b

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 95% of confidence, our significance level would be given by $\alpha=1-0.95=0.05$ and $\alpha/2 =0.025$ . And the critical value would be given by:

$z_{\alpha/2}=-1.96, z_{1-\alpha/2}=1.96$

The confidence interval for the mean is given by the following formula:

$\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}$

Replacing we got:

$0.0355 - 1.96\sqrt{\frac{0.036(1-0.036)}{4167}}=0.030$

$0.0355 + 1.96\sqrt{\frac{0.036(1-0.036)}{4167}}=0.041$

8 0

4 years ago

Pls help me guys! This is super hard

Sindrei [870]

Don't worry, it isn't that hard.
Subtract the ticket cost like so:
28.59 - 14.42 = $14.17
The tickets in New York are $14.17 more than in Atlanta. So B.

Remember that "How much more" means you subtract.
Good luck!

5 0

3 years ago