Ask question

Ask question

All categories

3 years ago

10

Identify the slope and y-intercept of the function y = 4x - 9. O A. The slope is -9. The yintercept is (0,4). B. The slope is 4.

The y-intercept is (0, -9). C. The slope is 9. The yintercept is (0,4). O D. The slope is 4. The y-intercept is (0,9).

1 answer:

RUDIKE [14]3 years ago

6 0

Answer:

B

Step-by-step explanation:

You might be interested in

When n=343 college students are randomly selected and surveyed, it is found that x=110 own a car. Find a 99% confidence interval

Liono4ka [1.6K]

Answer:

The margin of error will be "0.65". A further explanation is provided below.

Step-by-step explanation:

The given values are:

n = 343

x = 110

At 99% confidence level,

$\alpha = 1-99$ %

$=1-0.99$

$=0.01$

then,

$\frac{\alpha}{2} =\frac{0.01}{2}$

$=0.005$

or,

$Z_{\frac{\alpha}{2} }=Z_{0.005}$

$=2.576$

Now,

The point estimate will be:

⇒ $\hat{P}=\frac{x}{n}$

⇒ $=\frac{110}{343}$

⇒ $=0.321$

or,

⇒ $1-\hat{P}=1-0.321$

⇒ $=0.679$

The margin of error will be:

⇒ $E=Z_{\frac{\alpha}{2} }\times \sqrt (\frac{(\hat{P}\times (1 - \hat{P})) }{n} )$

On substituting the above values, we get

⇒ $=2.576\times \sqrt{\frac{0.321\times 0.679}{343} }$

⇒ $=2.576\times \sqrt{\frac{0.217959}{343} }$

⇒ $=0.065$

hence,

⇒ $\hat{P}-E$

⇒ $0.321-0.065$

⇒ $0.256,0.386$

6 0

3 years ago

Two vehicles, a car and a truck, leave an intersection at the same time. The car heads east at an average speed of 70 miles per

forsale [732]

Step-by-step explanation:

[70,30] = 210 miles per hour

5 0

3 years ago

Type the correct number in the blank

Mademuasel [1]

Answer:

4.11

Step-by-step explanation:

7 0

2 years ago

In the following diagram which segments are radii of circle p

lapo4ka [179]

Answer:

The correct answers would be A,C,D

Step-by-step explanation:

5 0

3 years ago

The distance between the pair of points (3,5) and (11,11)

statuscvo [17]

Formula: d = √(x2-x1)²+(y2-y1)²

d = √(11-3)²+(11-5)²

d = √8²+6²

d = √64+36

d = √100

d = 10

Best of Luck!

5 0

3 years ago

Read 2 more answers