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slavikrds [6]
3 years ago
7

PLEASE HURRY Fill in the blank:

Mathematics
2 answers:
makkiz [27]3 years ago
7 0

Answer:

This is slope-intercept form: y = (-3/4)x + 3

The slope is: -3/4

The y-intercept is: 3

Step-by-step explanation:

3x + 4y - 12 = 0

Isolate y

3x - 3x + 4y -12 + 12 = -3x + 12

Simplify

4y = -3x + 12

Divide 4 on each side to get y by itself

4y/4 = -3x/4 + 12/4

Simplify

y = (-3/4)x + 3

This is slope-intercept form: y = (-3/4)x + 3

The slope is: -3/4

The y-intercept is: 3

GREYUIT [131]3 years ago
3 0

Answer: I calculated it and my answer I got was that the slope-intercept form: was y = (-3/4)x + 3

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A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 434 gram setting. It is
yan [13]

Answer:

No, there is not sufficient evidence to support the claim that the bags are underfilled

Step-by-step explanation:

A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 434 gram setting.

This means that the null hypothesis is:

H_{0}: \mu = 434

It is believed that the machine is underfilling the bags.

This means that the alternate hypothesis is:

H_{a}: \mu < 434

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

434 is tested at the null hypothesis:

This means that \mu = 434

A 9 bag sample had a mean of 431 grams with a variance of 144.

This means that X = 431, n = 9, \sigma = \sqrt{144} = 12

Value of the test-statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{431 - 434}{\frac{12}{\sqrt{9}}}

z = -0.75

P-value of the test:

The pvalue of the test is the pvalue of z = -0.75, which is 0.2266

0.2266 > 0.01, which means that there is not sufficient evidence to support the claim that the bags are underfilled.

7 0
2 years ago
5. Two unbiased dice are rolled. Calculate the probability that the sum of the two dice is:
IceJOKER [234]
The sample space has 36 possible pairs from 1,1 1,2 1,3 up to 6,5 and 6,6

(a). Three pairs add to 4 1,3 2,2 and 3,1 so P(4) = 3/36 = 1/12

(b). 6 pairs add to 7 so P(7) = 6/36 = 1/6

(c) 15 pairs add to less than 7 so P(<7) = 15/36 = 5/12
5 0
2 years ago
JUST THE ANSWERS PLEASE
notsponge [240]

Answer:

Eli=180 Freda=260 and Geoff=360

8 0
3 years ago
I don't Understand How to answer questions 8, 10, 11, and 12. I have already answered all the other questions on the paper. The
Alexxandr [17]
8) The figure is a heptagon. This means the sum of the interior angles would be 180(7-2) = 5 * 180 = 900. Then this means you can say that the sum of all angles would equal 900.

(133 + 106 + 120 + 133 + (13 - 9)) + (m + m + m) = 900
-------Combine Like terms----------
496 + 3m = 900
-------Subtraction------------
3m = 404
--------Division--------
m = 404/3

If the answer doesn't seem right, just plug it in!

496 + 3(404/3) = 900
496 + 404 = 900
900 = 900

10) Same thing. The sum of the interior angles in a pentagon are 540. 

(122 + 90 + 88 + 96) + k = 540 
396 + k = 540
k = 144

11) The angle supplementary to the angle which measures 138 is 42. The sum of all the interior angles of a quadrilateral is 360. Let us call the missing INTERIOR angle x. 

(104 + 98 + 42) + x = 360
244 + x = 360
x = 116
So the missing EXTERIOR angle is 180 - 116 which is 64.

12 is a bit confusing without showing you sorry :(



4 0
3 years ago
HELP GIVING BRAINLIEST Find the solution to the following system using substitution or elimination:
Kryger [21]

Answer:

it is B

Step-by-step explanation:

please can i have brainliest

8 0
3 years ago
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