All categories

2 years ago

Please help answer all of them! for BRAINLIEST and more!! (Question In picture)

Mathematics

1 answer:

ohaa [14]2 years ago

4 0

Answer:

A)-7y^3-3y^2-2y-8

B)-7x^3y^3-12x^2y^2-xy

C)2xy^3+3xy^2-5

A)14x^2

B)15a^2+30ab

Step-by-step explanation:

You might be interested in

Your employer is paying 100% of a health plan that costs $7,200.00. How much are you paying?

N76 [4]

Answer:

You are paying 0%, as your employer is paying the full price. 100% is equal to 1.

4 0

3 years ago

Read 2 more answers

Use the normal distribution of SAT critical reading scores for which the mean is 502 and the standard deviation is 116. Assume t

PSYCHO15rus [73]

Answer:

(a) 93.19%

(b) 267.3

Step-by-step explanation:

The population mean and standard deviation are given as 502 and 116 respectively.

Consider, X be the random variable that shows the SAT critical reading score is normally distributed.

(a) The percent of the SAT verbal scores are less than 675 can be calculated as:

$P(X$

Thus, the required percentage is 93.19%

(b)

The number of SAT verbal scores that are expected to be greater than 575 can be calculated as:

$P(X>575)=P(\frac{x-502}{116}>\frac{575-502}{116}\\P(X>575)=P(Z>\frac{575-502}{116})\\P(X>575)=P(Z>0.6293)\\P(X>575)=0.2673$

So,

Out of 1000 randomly selected SAT verbal scores, 1000(0.2673) = 267.3 are expected to have greater than 575.

8 0

3 years ago

(ECONOMICS) A country specializes in agricultural production—in particular, pineapples and coconuts. Last year, its economy was

hodyreva [135]

I think it would be blue because it stated that it was popular and flavorable so since they made additional islands there would be more of an increase from point A.

4 0

3 years ago

Read 2 more answers

Please help me. please help

aleksklad [387]

Answer:

<h2>13 years</h2>

Step-by-step explanation:

Given, 

No. of children = 5

Ages of the children = 12, 18, 13, 16 and 6 years

Therefore, 

Average age of the children

$= \frac{sum \: of \: the \: ages \: of \: children}{no. \: of \: children}$

$= \frac{12 + 18 + 13 + 16 + 6}{5}$

$= \frac{65}{5}$

= 13 years (Ans)

3 0

3 years ago

How many smaller rectangles are there in an area model that represents 27 x 83? Why? What are their dimensions?

Harlamova29_29 [7]

There's an infinite number of any smaller figures in any figure. It's because whatever we do, we can always fit another number of figures inside the figures we just created.

4 0

4 years ago