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2 years ago

Write the equation of a line that passes through the point (-7, 3) and is

Mathematics

1 answer:

kondor19780726 [428]2 years ago

8 0

Answer:

y-axis is 0 (-7,4) i guess

Step-by-step explanation:

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Least to greatest 52, 63, 55, 56, 62, 54, 59, 60, 53, 61, 88

BartSMP [9]

Answer:

52, 53, 54, 55, 56, 59, 60, 61, 62, 88

Step-by-step explanation:

You need to start from 52 to 88 (least to greatest) and then you will get answer.

7 0

2 years ago

A farmer uses 1/3 of an acre of land to grow carrots.

horrorfan [7]

Answer:

the answer is 1/45

Step-by-step explanation:

just use the proportion method

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2 years ago

Vincent mows 8 lawns in 2 hours. How many lawns are mowed in 5 hours?

Alex777 [14]

<h3>Answer: 20 lawns</h3>

Work Shown:

8 lawns = 2 hours

4 lawns = 1 hour (divide both sides by 2)

20 lawns = 5 hours (multiply both sides by 5)

5 0

3 years ago

Read 2 more answers

At which roots does the graph cross the x-axis?<br> 0<br> -2<br> -4<br> no<br> ir<br> A:-4

sp2606 [1]

Answer:

0 and -2

Step-by-step explanation:

7 0

2 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

2 years ago