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3 years ago

Find x and y intercepts for the following.

2 answers:

7 0

A. 4x - y = 8

y = -8 y-int (0,-8)
x = 2. x-imt (2,0)

b. 6x - y = -3

x = -1/2 (-1/2, 0) x int
y = 3 : (0,3) y-intercept

c. x = -5 x-int (-5,0)

y -int (0,25) y = 25

nordsb [41]3 years ago

5 0

Answer:

find x and y intercepts for the following.

a. -y = 8 - 4x 

x-intercept: (2,0)

y-intercept: (0,−8)

b. 6x - y + 3 = 0 

x-intercept: (−1/2,0)

y-intercept: (0,3)

c. 2y - 10x = 50

x-intercept: (−5,0)

y-intercept: (0,25)

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Find the product of the roots of the equation xl-5x - 36 = 0

Marat540 [252]

Answer:

Step-by-step explanation:

Hello, I assume that you mean

$x^2-5x-36$

The product is -36.

$x_1 \text{ and } x_2 \text{ are the two roots, we can write}\\\\(x-x_1)(x-x_2)=x^2-(x_1+x_2)x+x_1\cdot x_2$

So in this example, it means that the sum is 5 and the product is -36.

Thank you

5 0

3 years ago

Find the pattern, then write the next two letters. J, F, M, A, M,_, _

RoseWind [281]

Answer:

its answer J,F,M,A,M,J,J

Step-by-step explanation:

<h3>its a name of months next 5 words is A,S,O,N,and D</h3>

5 0

3 years ago

Read 2 more answers

3. Rectangle J is 6 feet wide and 9 feet long.

Furkat [3]

Answer:

No it's not!

Step-by-step explanation:

because the length (long) of J and K are totally different whereas the breadth(width) of J and K is also different which does make similar in sense

8 0

2 years ago

A Gallup Poll used telephone interviews to survey a sample of 1030 U.S. residents over the age of 18 regarding their use of cred

Vlada [557]

Answer:

The 95% margin of error for this estimate is 0.0274 = 2.74 percentage points.

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 $1 - \frac{\alpha}{2}$ .

The margin of error is:

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

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

72% of Americans said that they had at least one credit card

This means that $p = 0.72$

Give the 95% margin of error for this estimate.

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

$M = 1.96\sqrt{\frac{0.72*0.28)}{1030}} = 0.0274$

The 95% margin of error for this estimate is 0.0274 = 2.74 percentage points.

7 0

3 years ago

The box plots below show the average daily temperatures in July and August for a U.S. city: two box plots shown. The top one is

sergey [27]

The correct answer is:

The mean for July is smaller than the median; and

the mean for August is larger than the median.

Explanation:

A distribution with a positive skew would have a longer whisker in the positive direction than in the negative direction. A larger mean than median would also indicate a positive skew.

Alternatively, a distribution with a negative skew would have a longer whisker in the negative direction than in the positive direction. A smaller mean than median would also indicate a negative skew.

The whisker in the negative direction for July is longer than the whisker in the positive direction. This indicates a negative skew.

The whisker in the positive direction for August is longer than the whisker in the negative direction. This indicates a positive skew.

7 0

3 years ago