3 years ago

Quiz 3

Mathematics

1 answer:

andrezito [222]3 years ago

4 0

It is 2x+8!!!!!!! I’m pretty sure

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Which of the following best describes the change in the mean when 1213 is

borishaifa [10]

Answer:

Given in the information set as

26, 34, 38, 49, 65, 76, 81

Sum = 369

No of entries = 7

Mean =52.71

When 1213 is included

New sum = 1582

No of entries =8

The new mean will be 197.75

Thus mean will be increased by 145.04

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3 years ago

Select all the expressions that are equivalent to 7(2 - 3n).

Free_Kalibri [48]

Answer:

$\boxed{c. \: 14 - 21n \: \: \: \: and \: \: \: \: d. \: (2 - 3n) \times 7}$

Step-by-step explanation:

$7(2 - 3n) = (2 - 3n) \times 7\\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: =(7 \times 2) - (7 \times 3n) \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 14 - 21n$

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3 years ago

In the formula, l = a + (n - 1)d make d as the subject. Find d when l = 10, a = 2, n = 5.

coldgirl [10]

<h3>Given:-</h3>

I = a + (n - 1)d [Given formula]

Find d when I = 10, a = 2, n = 5

<h2>Solution:-</h2>

I = a + (n - 1)d [Given]

Putting the value of I = 10, a = 2, n = 5 we get,

10 = 2 + (5 - 1)d

10 = 2 + 4d

10 - 2 = 4d

8 = 4d

d = $\frac{8}{4}$

d = 2

<h3>Value of d is 2. [Answer]</h3>

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3 years ago

Is the slope Positive, Negative, Zero or Undefined? Find the slope What does m=

wariber [46]

Answer:

Undefined

Step-by-step explanation:

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3 years ago

1 1/2 x -2= PROCESS !!!!

trasher [3.6K]

11/2x=2
2/11(11/2)x=2(2/11)
x=4/11

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3 years ago