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3 years ago

Answer please for brainliest

Mathematics

1 answer:

pychu [463]3 years ago

7 0

Answer:

the answer is 0.7 by the way!

Step-by-step explanation:

This is talking about the distance from zero sooo...

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A moving company wants to buy a new type of truck and needs to know the volume of the storage compartment before they can decide

shutvik [7]

Step-by-step explanation:

I think you should compare whatever you can do to your truck and pull

6 0

3 years ago

(07.01)<br> What is the value of y in the equation y-7 = 21? (4 points)

TEA [102]

Answer:

y=28

Step-by-step explanation:

Hope this helps

6 0

3 years ago

Read 2 more answers

Quick help me on this!!!

balandron [24]

Answer: 28

Step-by-step explanation:

2.124 + x + y + z + w = 360

x = y

z = w

2x + 2z = 360 - 248

2x + 2z = 112

x + z = 56

x = z

x = y

y = 28

I hope I helped you.

3 0

3 years ago

PTC is a substance that has a strong bitter taste for some people and is tasteless for others. The ability to taste PTC is inher

lana66690 [7]

Answer:

a) $n=\frac{0.76(1-0.76)}{(\frac{0.01}{1.64})^2}=4905.83$

And rounded up we have that n=4906

b) For this case since we don't have prior info we need to use as estimatro for the proportion $\hat p =0.5$

$n=\frac{0.5(1-0.5)}{(\frac{0.01}{1.64})^2}=6724$

And rounded up we have that n=6724

Step-by-step explanation:

We need to remember that the confidence interval for the true proportion is given by :

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

Part a

The estimated proportion for this case is $\hat p =0.76$

Our interval is at 90% of confidence, and the significance level is given by $\alpha=1-0.90=0.1$ and $\alpha/2 =0.05$ . The critical values for this case are:

$z_{\alpha/2}=-1.64, t_{1-\alpha/2}=1.64$

The margin of error for the proportion interval is given by this formula:

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

The margin of error desired is given $ME =\pm 0.01$ and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}$ (b)

Replacing we got:

$n=\frac{0.76(1-0.76)}{(\frac{0.01}{1.64})^2}=4905.83$

And rounded up we have that n=4906

Part b

For this case since we don't have prior info we need to use as estimatro for the proportion $\hat p =0.5$

$n=\frac{0.5(1-0.5)}{(\frac{0.01}{1.64})^2}=6724$

And rounded up we have that n=6724

3 0

3 years ago

The dollar value v(t) of a certain car model that is t years old is given by the following exponential function.

dimaraw [331]

Answer:

v(0) = 32,000 . . . dollars

v(13) = 16,427 . . . dollars

Step-by-step explanation:

The initial value is the value of the function for t=0. Put that into the formula and evaluate.

v(0) = 32,000(0.95^0) = 32,000 . . . . dollars

The value after 13 years is the function value for t=13. Put that into the formula and evaluate.

v(13) = 32,000(0.95^13) ≈ 32,000·0.513342 ≈ 16,427 . . . . dollars

5 0

3 years ago