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3 years ago

What is the area of the shaded triangle inside the square? Round your answer to the nearest square inch.

Mathematics

1 answer:

Fed [463]3 years ago

3 0

Area of a square formula is the side to the second power, so you'll have to use that formula to find the area.

Step-by-step explanation:

16*16=256

256/2=128

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I have no friends so I want two people to answer my statistical question for me to complete my box chart. The question is how ma

Alborosie

Answer:

5 Games!

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Silicon wafers are scored and then broken into the many small microchips that will he mounted into circuits. Two breaking method

antoniya [11.8K]

Answer:

The estimate is $- 0.0265\le K \le 0.0465$

Method B this is because the faulty breaks are less

Step-by-step explanation:

The number of microchips broken in method A is $n_1 = 400$

The number of faulty breaks of method A is $X_1 = 32$

The number of microchips broken in method B is $n_2 = 400$

The number of faulty breaks of method A is $X_2 = 32$

The proportion of the faulty breaks to the total breaks in method A is

$p_1 = \frac{32}{400}$

$p_1 = 0.08$

The proportion of the faulty to the total breaks in method B is

$p_2 = \frac{28}{400}$

$p_2 = 0.07$

For this estimation the standard error is

$SE = \sqrt{ \frac{p_1 (1 - p_1)}{n_1} + \frac{p_2 (1- p_2 )}{n_2} } }$

substituting values

$SE = \sqrt{ \frac{0.08 (1 - 0.08)}{400} + \frac{0.07 (1- 0.07 )}{400} } }$

$SE = 0.0186$

The z-values of confidence coefficient of 0.95 from the z-table is

$z_{0.95} = 1.96$

The difference between proportions of improperly broken microchips for the two breaking methods is mathematically represented as

$K = [p_1 - p_2 ] \pm z_{0.95} * SE$

substituting values

$K = [0.08 - 0.07 ] \pm 1.96 *0.0186$

$K = - 0.0265 \ or \ K = 0.0465$

The interval of the difference between proportions of improperly broken microchips for the two breaking methods is

$- 0.0265\le K \le 0.0465$

3 0

3 years ago

25=2y - 15 solve y AND SIMPLIFY HELP ME PLEASEE

sammy [17]

Answer:

y=20

Step-by-step explanation:

25+15=40

2y=40

40/2=20

y=20

8 0

3 years ago

Read 2 more answers

Need help plzzzzz The first one and the second one plZ

solong [7]

From both sides of the equation, 4 should have been subtracted.

The solution should look like this:

X + 4 = 28

From each side, subtract 4 :

I'd like to demonstrate more steps, but the answer has already popped up, so there aren't any more steps.

4 0

3 years ago

Determine the slop of the line passing through (-3,7) and (9,-2)

enot [183]

The slope is 3/4. you need to find the change of y over the change of x.

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3 years ago