1 year ago

Simplify the expression by combining like terms and distributing. −10(1−9x)+6(x−10)

Mathematics

1 answer:

weeeeeb [17]1 year ago

7 0

10+90x +6x-60 that’s my answer sorry if it’s wrong the 60 is negative

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Zinaida [17]

A is the answer i hope this helsp

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2 years ago

Given ABC ~ DEF find the length of segment DE. Segment DE is _____ mm.

eduard

Answer:

20 mm

Step-by-step explanation:

$\frac{48}{40} =\frac{24}{x} \\48x=(40)(24)\\48x=960\\x=20mm$

8 0

2 years ago

recent survey found that 71% of all adults over 50 wear glasses for driving. In a random sample of 30 adults over 50, what is

valentina_108 [34]

Answer:

Mean = 21.3

Standard Deviation = 2.48

Step-by-step explanation:

We are given the following in the question:

p = 71% = 0.71

Sample size, n = 30

We have to find the mean and the standard deviation of those that wear glasses.

$\text{Mean} = np\\=30(0.71)\\=21.3$

Thus, the mean of those who wear glasses is 21.3

$\text{Standard deviation} = \sqrt{npq}\\=\sqrt{np(1-p)}\\=\sqrt{30\times 0.71\times (1-0.71)}\\=2.48$

Thus, the standard deviation of those who wear glasses is 2.48

5 0

2 years ago

Clint has a pizza that is cut into 4 equal slices. 3 pieces have pepperoni on them. The outher piece. only has cheese. what fric

kipiarov [429]

Answer:

1/4

Step-by-step explanation:

There are 4 slices

3 of the 4 slices has pepperoni

4-3=1

There is 1 slice without pepperoni, making 1/4th of the pizza pepperoniless.

<em>Brainliest would be appriciated</em>

4 0

3 years ago

Identify a pattern and find the next number in the pattern. <br><br>-5, 1, 7, 13

natulia [17]

Answer:

Step-by-step explanation:

The pattern is that it +6 every number.

-5 + 6 = 1

1 + 6 = 7

7 + 6 = 13

So the next number is 13 + 6 = 19.

EDIT - I can't add sorry.

4 0

2 years ago

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