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3 years ago

Simplify (2x^2+2x-6)(x-4)

Mathematics

1 answer:

IrinaK [193]3 years ago

4 0

Answer: 2x^3 - 6x^2 - 14x + 24

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What is the difference between 1/2 5/3 2/10 2/5

LuckyWell [14K]

Least to Greatest:

2/10, 2/5, 1/2, 5/3

Explanation:

They are all different fractions.

Hopefully, this helps! :D

Practice with the number line!

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3 years ago

Two boys and three girls are auditioning to play the piano for a school production. Two students will be chosen, one as the pian

finlep [7]

Answer:

30% is the correct answer.

Step-by-step explanation:

Total number of boys = 2

Total number of girls = 3

Total number of students = 5

To find:

Probability that the pianist will be a boy and the alternate will be a girl?

Solution:

Here we have to make 2 choices.

1st choice has to be boy (pianist) and 2nd choice has to be girl (alternate).

$\bold{\text{Required probability }= P(\text{boy as pianist first}) \times P(\text{girl as alternate})}$

Formula for probability of an event E is given as:

$P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

For $P(\text{boy as pianist})$ , number of favorable cases are 2 (total number of boys).

Total number of cases = Total number of students i.e. 5

So, $P(\text{boy as pianist})$ is:

$P(\text{boy as pianist}) = \dfrac{2}{5}$

For $P(\text{girl as alternate})$ , number of favorable cases are 3 (total number of girls).

Now, one boy is already chosen as pianist so Total number of cases = Total number of students left i.e. (5 - 1) = 4

$P(\text{girl as alternate}) = \dfrac{3}{4}$

So, the required probability is:

$\text{Required probability } = \dfrac{2}{5}\times \dfrac{3}{4} = \dfrac{3}{10} = \bold{30\%}$

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3 years ago

What is a graphical means of quantitative comparison by rectangles with lengths proportional to measure of data or things compar

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The answer is a bar graph. This shows categorical data with quadrangular bars with heights or lengths relative to the standards that they signify. The bars can be designed vertically or horizontally. A vertical bar chart is occasionally called a line <span>graph</span>

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3 years ago

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Mabel is comparing the prices of two car rental companies. Company A charges $35 per day and an additional $15 as service charge

olga_2 [115]

The answer to the question