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4 years ago

Find the slope of the line whose equation is 5y = x - 3.

1 answer:

8 0

5y = x - 3
Divide by 5 on both sides and you will get $y= \frac{1}{5}x- \frac{3}{5}$ .
Slope intercept form is y=mx + b, where m is the slope.

Therefore, the slope to 5y = x - 3, is $\frac{1}{5}$ .

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A rectangular airstrip measures 32.30 m by 210 m, with the width measured more accurately than the length. Find the area, taking

Bingel [31]

Answer: (d). Area = 6.8 × 10^3 m^2 (to 2 significant figure)

Step-by-step explanation:

The area to find rectangular is:

Area = length × breadth

Area = 32.30 × 210

Area = 6783 m^2

Area = 6.8 × 10^3 m^2 (to 2 significant figure)

5 0

4 years ago

Rewrite each number sentence using numerals and symbols.Find 5 less than the product of 8 and 4 *

jarptica [38.1K]

I think the answer is 27

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3 years ago

Ten engineering schools in the United States were surveyed. The sample contained 250 electrical engineers, 80 being women; 175 c

steposvetlana [31]

Answer:

There is a significant difference between the two proportions.

Step-by-step explanation:

The (1 - α)% confidence interval for difference between population proportions is:

$CI=(\hat p_{1}-\hat p_{2})\pm z_{\alpha/2}\times\sqrt{\frac{\hat p_{1}(1-\hat p_{1})}{n_{1}}+\frac{\hat p_{2}(1-\hat p_{2})}{n_{2}}}$

Compute the sample proportions as follows:

$\hat p_{1}=\frac{80}{250}=0.32\\\\\hat p_{2}=\frac{40}{175}=0.23$

The critical value of z for 90% confidence interval is:

$z_{0.10/2}=z_{0.05}=1.645$

Compute a 90% confidence interval for the difference between the proportions of women in these two fields of engineering as follows:

$CI=(\hat p_{1}-\hat p_{2})\pm z_{\alpha/2}\times\sqrt{\frac{\hat p_{1}(1-\hat p_{1})}{n_{1}}+\frac{\hat p_{2}(1-\hat p_{2})}{n_{2}}}$

$=(0.32-0.23)\pm 1.645\times\sqrt{\frac{0.32(1-0.32)}{250}+\frac{0.23(1-0.23)}{175}}\\\\=0.09\pm 0.0714\\\\=(0.0186, 0.1614)\\\\\approx (0.02, 0.16)$

There will be no difference between the two proportions if the 90% confidence interval consists of 0.

But the 90% confidence interval does not consists of 0.

Thus, there is a significant difference between the two proportions.

4 0

3 years ago

Please help me !! Ill difinately compensate you for your effort PLEASE!!! and if you don't know the answer then please be genero

Zina [86]

Answer:

When I squared the binomials, they became quadratic trinomials.

(Not sure if this is the kind of answer you want, sorry if it's not!)

(x-3)² = x² - 6x + 9

(x+2)² = x² + 4x + 4

(x-4)² = x² - 8x + 16

(x+5)² = x² + 10x + 25

3 0

3 years ago

Help "It's too short. Write at least 20 characters to get a great answer."

Shalnov [3]

Answer:

Because for the first problem you would have to simplify 8 divided by 2 into 4 in which 12 - 4 = 8 then you would have to simplify 12 - 4 to 8 which 8 = 8

Because for the second problem you would have to simplify 12 - 8 to 4 which 4 divided by 2 = 2 then you would have to simplify 4 divided by 2 to 2 which 2 = 2

There are parentheses which if there weren't you would get a different answer

Hope I helped

Sorry if I didnt

8 0

3 years ago