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My name is Ann [436]
3 years ago
15

(x+5)(x^2-2x+3) Plz solve this with steps.

Mathematics
1 answer:
vaieri [72.5K]3 years ago
4 0

Answer:

x^3+3x^2-7x+15

Step-by-step explanation:

first you've got to distribute x through (x^2-2x+3)

x^3-2x^2+3x, then distribute the 5 through (x^2-2x+3)

5x^2-10x+15 now you add that to x^3-2x^2+3x

x^3+3x^2-7x+15

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Sarah is 3 years older than nine times Mario's age. In 10 years, she will be 1 less than triple his
Natasha2012 [34]

Answer:

3(9m + 13) - (m + 10) = 1

Step-by-step explanation:

Here, we want to write an equation we can use to find the age of Mario.

Let the present age of Mario be M

Age of Sarah is 3 years older than 9

times Mario’s age

Mario’s age is thus;

9m + 3

In ten years, she will be 1 less than triple his age

In 10 years time, sarah age will be 9m +

3 + 10 = 9m + 13

Mario age will be m + 10

Mathematically;

3(9m + 13) - (m + 10) = 1

7 0
3 years ago
A container can hold no more than 80 lb. Rick fills the box with books that each weigh 2 lb and a statue that weighs 10 lb. Whic
Bad White [126]
2B + 10 ≤ 80.....................
6 0
3 years ago
The owner of a bakery wants to know whether customers have any preference among 5 different flavors of muffin. A sample of 200 c
Troyanec [42]
So,, there are 5 different flavors. A total of 180 people were asked. Hence, the hypothesis that there is no significant difference is that every flavor gets 180/5=36 flavors. x^2=\sum{\frac{(x_i)^2}{m_i}}-n. In this case, mi is the proportion of the hypothesis, thus 36, n=180 and xi is the number of actual observations. Substituting the known quantities, we get that x^2=9. The degree of association is given by \sqrt{X^2}/ \sqrt{N(n-1)}. This yields around 0.10, much higher than our limit.
8 0
3 years ago
The rectangular model is made up of squares. Each square is of equal size.
IrinaK [193]
H 45%
you would add up the number of shaded squares and divide that by the total number of squares
6 0
2 years ago
Read 2 more answers
F(x) = -3(x - 1)2 + 3<br> How do you turn it into standard form
Zepler [3.9K]

Answer:

\displaystyle \boxed{f(x) = 6x - 3x^2}

Step-by-step explanation:

f(x) = −3(x² - 2x + 1) + 3

f(x) = −3x² + 6x - 3 + 3

f(x) = −3x² + 6x

** The above answer is written in reverse, which is the exact same result.

I am joyous to assist you anytime.

7 0
3 years ago
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