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3 years ago

6

in the slope-intercept equation of a line, which part of the equation gives the y-coordinate of the point where the line crosses

the y-axis?

1 answer:

Arada [10]3 years ago

5 0

Y=mx+c.
C represents the y-axis.

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Please answer correctly , will mark brainliest answer !!!

Paladinen [302]

Answer:

x + 18 + 28/x

Step-by-step explanation:

You first have to factor the expression that represents the area using the AC method.

When done factoring, you should get the expression (x + 4)(x + 7).

From there you divide that by x + 7 to get the length

(x + 4)(x + 7) / x + 7 = x + 18 + 28/x.

This may not be the correct answer, but I believe this is correct.

If you wish to do it quicker, you can just divide the entire expression of the area by the expression of the length, but if you were writing it down on paper, I suggest factoring it out.

8 0

3 years ago

One of the valves on the Hoover Dam releases 40000 gallons of water per second what is the rate in gallons per minute

UNO [17]

Ok so we know that in ONE second, the dam releases 40000 gallons of water. In ONE minute, there are 60 seconds. Therefore...

1 second----------------40000 gallons
60 seconds--------------? ( this is what we're trying to find.

To get from 1 to 60, we multiplied by 60. Now we do it on the other side. 40000 times 60 is 2,400,000, so the rate in gallons per minute is 2,400,000 gallons per minute

6 0

3 years ago

Read 2 more answers

HighTech Inc. randomly tests its employees about company policies. Last year in the 560 random tests conducted, 26 employees fai

Tanzania [10]

Answer:

The 98% confidence interval for the proportion of applicants that fail the test is (0.025, 0.067).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

560 random tests conducted, 26 employees failed the test. This means that $n = 560, \pi = \frac{26}{560} = 0.046$

98% confidence level

So $\alpha = 0.02$ , z is the value of Z that has a pvalue of $1 - \frac{0.02}{2} = 0.99$ , so $Z = 2.33$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.046 - 2.33\sqrt{\frac{0.046*0.954}{560}} = 0.025$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.046 + 2.33\sqrt{\frac{0.046*0.954}{560}} = 0.067$

The 98% confidence interval for the proportion of applicants that fail the test is (0.025, 0.067).

5 0

4 years ago

Please help answer this geometry

Alex777 [14]

Answer:

x=3cm

Step-by-step explanation:

We have three figures.A triangle(8 by X+3).In it we have another triangle(4 by x)and a trapesium

thus that means the area of the trapesium+area of small triangle=area of big triangle.

1)Area=1/2lengthxwidth. =1/2×8×(x+3)

=4(x+3)

=4x+12cm³

2)Area=1/2lengthxwidth. =1/2×4×x

=2x

3)area=1/2(a+b)h

=1/2(x+3+x)×4

=1/2×4(2x+3). (area of trapesium)

=2(2x+3)

=4x+6cm³

thus:

2x+4x+6=4x+12 put like terms together

2x+4x-4x=12-6

2x=6 divide both sides by 2

x=3cm

5 0

3 years ago

Simplify 3 to the power of 2 times 3 to the power of 5

viva [34]

Answer:

3 to the power of 2 times 3 to the power of 5 is 2,187

Step-by-step explanation:

$3^{2}$ x $3^{5}$ = 2,187

Hope this helps! Have a nice day!

(Pls consider making me brainliest no one does it anymore XD)

8 0

3 years ago