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2 years ago

PLEASE HELP WILL MARK BRAINLIST!

Mathematics

1 answer:

storchak [24]2 years ago

7 0

Every single one of those polynomials factors. When factored, your expression looks like this: $\frac{(3x-7)(x+3)}{x+3)(x-2)} * \frac{(2x+7)(x+9)}{(3x-7)(2x+7)}$ . When you cancel the like factors out, what you're left with is this: $\frac{1x+9}{1x-2}$ . That means that b = 9, c = 1, and d = -2

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A rectangular garden has length and width as given by the expressions below.

Helen [10]

2[4 − 7(3x + 4y)] + 2[3x(−2y)]
2[4 - 21x -28y] + 2[-6xy]
8 - 42x - 56y -12xy

the perimeter of given rectangular garden is (8 - 42x - 56y -12xy).

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2 years ago

1. Write the following rational numbers as quotients of two integers.

Marianna [84]

Answer:

a) -0.5 = -1/2

b) -2/1/4 = -2/4

c) -5/6/7 = -5/42

d) 7.2 = 72/10

Step-by-step explanation:

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1 year ago

Hamster111 yes please

Rufina [12.5K]

Answer:

Indeed

Step-by-step explanation:

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2 years ago

The sum of 3x and 14 equals the difference of 20 and 2x

KonstantinChe [14]

Answer. 17<18

The sum of 3x + 14 equals 17x.

The difference between 20 - 2x equals 18x.

Therefore the equation is not equal to each other.

6 0

2 years ago

4.) A bag contains 10 red marbles and 5 blue marbles. You randomly select 3 marbles from the bag. What is

sesenic [268]

Answer:

a) 1/27

b) 2/91

Step-by-step explanation:

A bag contains 10 red marbles and 5 blue marbles (15 marbles in total). You randomly select 3 marbles from the bag.

a) You replace each marble before selecting the next one.

The probability of selecting one blue marble is

$\dfrac{5}{15}=\dfrac{1}{3},$

then the probability that all 3 marbles are blue is

$\dfrac{1}{3}\times \dfrac{1}{3}\times \dfrac{1}{3}=\dfrac{1}{27}$

b) You do not replace each marble before selecting the next one. Each time the number of blue marbles decreases by 1 and the total number of marbles decreases by 1 too. So the probability that all 3 marbles are blue is

$\dfrac{5}{15}\times \dfrac{4}{14}\times \dfrac{3}{13}=\dfrac{2}{91}$

7 0

2 years ago