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3 years ago

What is the slope of the line that passes through the points (-9,8) and (-21,10)?

Mathematics

1 answer:

____ [38]3 years ago

4 0

Answer:

Step-by-step explanation:

(10 - 8)/(-21 + 9)= 12/-12= -1

y - 8 = -1(x + 9)

y - 8 = -x - 9

y = -x - 1

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Help please I don’t get it

AlexFokin [52]

Answer:

3/8

Step-by-step explanation:

Rearrange, find common denominator.

$x = \frac{7}{8} - \frac{1}{2} \\ x = \frac{7}{8} - \frac{4}{8} \\ x = \frac{3}{8}$

8 0

3 years ago

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The length of a rectangle is 16 inches. if the width is 25% of its length, what is the perimeter of the rectangle

Leokris [45]

Answer:

Perimeter = 40 inches

Step-by-step explanation:

Length = 16 inches

Width = 25% of length (16)

= 25% of 16

25% = 1/4

Width = 1/4 x 16

= 4 inches

Length = 16 inches

Width = 4 inches

Perimeter of a rectangle = length + length + width + width:

= 16 + 16 + 4 + 4

= 32 + 8

= 40

PERIMETER = 40 inches

So glad I could help :)

4 0

3 years ago

17 mm<br> 8 mm<br> 9 mm<br> 15 mm

OleMash [197]

Answer:

do you have to add the numbers together or multiply

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3 years ago

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During an experiment, Juan rolled a six-sided number cube 18 times. The number two occurred four times. Juan claimed the experim

Maru [420]

Answer:

1) Juans claim is incorrect. The correct experimental probablilty is 2/9

Step-by-step explanation:

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3 years ago

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Jack works as a waiter and is keeping track of the tips he earns daily. about how much does jack have to earn in tips on sunday

OLga [1]

A mean is an arithmetic average of a set of observations. The amount that Jack has to earn in tips on Sunday if he wants to average $19 a day is $25.

A mean is an arithmetic average of a set of observations. it is given by the formula,

$\rm Mean=\dfrac{\text{Sum of all obervation}}{\text{Number of observation}}$

As it is given that Jack makes $12 on Monday, $14 on Tuesday, $18 on Wednesday, $16 on Thursday, $26 on Friday and $22 on Saturday. And we need to know how much he should earn on Sunday, so the average is $19. Therefore, we can write,

$\rm Mean=\dfrac{\text{Sum of all obervation}}{\text{Number of observation}}$

$19 = \dfrac{12+14+18+16+26+22+x}{7}\\\\133 = 108 + x\\\\133-108=x\\\\x = 25$

Hence, the amount that Jack has to earn in tips on Sunday if he wants to average $19 a day is $25.

Learn more about Mean:

brainly.com/question/16967035

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2 years ago