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3 years ago

What number is represented by point P?

Mathematics

1 answer:

likoan [24]3 years ago

4 0

Answer:

0.0057

Step-by-step explanation:

Narrow it down.
The point P is between 5 * 10^-3 and and 6*10^-3
When you go to the bottom line, P is on the 7th division from the left.
Going from left to right increases P
P is on a line that goes between 5 and 6. Each division is 1/10. So P is in the tenth place.
One of the answers is 5.7 * 10^-3
The other answer is .0057
I really don't know which one to choose because we are given no direction. As a programmer, 0.0057 would be easier to program. I would choose it.
If it is not correct, then 5.7 * 10^-3 is the answer.

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X^2 -2x-24 factored completely

Dvinal [7]

Answer:

(x - 6)(x + 4)

Step-by-step explanation:

x^2 -2x-24

-24 = -6 * 4

- 6 + 4 = -2

x^2 -2x-24 = (x - 6)(x + 4)

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3 years ago

The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the e

marusya05 [52]

Answer:

The estimation for the proportion of tenth graders reading at or below the eighth grade level is given by:

$\hat p =\frac{955-812}{955}= 0.150$

$0.150 - 1.64 \sqrt{\frac{0.150(1-0.150)}{955}}=0.131$

$0.150 + 1.64 \sqrt{\frac{0.150(1-0.150)}{955}}=0.169$

And the 90% confidence interval would be given (0.131;0.169).

Step-by-step explanation:

We have the following info given:

$n= 955$ represent the sampel size slected

$x = 812$ number of students who read above the eighth grade level

The estimation for the proportion of tenth graders reading at or below the eighth grade level is given by:

$\hat p =\frac{955-812}{955}= 0.150$

The confidence interval for the proportion would be given by this formula

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

For the 90% confidence interval the significance is $\alpha=1-0.9=0.1$ and $\alpha/2=0.05$ , with that value we can find the quantile required for the interval in the normal standard distribution and we got.

$z_{\alpha/2}=1.64$

And replacing into the confidence interval formula we got:

$0.150 - 1.64 \sqrt{\frac{0.150(1-0.150)}{955}}=0.131$

$0.150 + 1.64 \sqrt{\frac{0.150(1-0.150)}{955}}=0.169$

And the 90% confidence interval would be given (0.131;0.169).

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3 years ago

Danika has one apple that weighs 1/4 lb and another apple weighs 3/16 lb. Find the DIFFERENCE in their weights.

Mama L [17]

Answer: A.

Step-by-step explanation:

Danika has 1/4 lb apple and a 3/16 apple. We have to find a common denominator to be able to subtract them. We can do this by finding out 4 times how much equals 16. Which is 4. So you multiply both of the numbers by 4, (1x4 = 4 , 4x4 = 16) being 4/16. Now you just have to subtract the top numbers "4-3 = 1" 1/16.

4 0

3 years ago

Read 2 more answers

What is -88 5x=x+62 answer

garik1379 [7]

Answer:

you cant solve that is it -88 * -88 5x=x+625x=x+62

Step-by-step explanation:

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3 years ago

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