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3 years ago

Which expressions are equivalent to 7b(3+c) ?

Mathematics

2 answers:

Stella [2.4K]3 years ago

5 0

(7b*3)+(7b*c)- Is the one of them then

21b+7bc- should be the other one

xeze [42]3 years ago

4 0

The first and the third one

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Can anyone help me on this please?

rjkz [21]

$\dfrac{4a^3b^2+2a^2b^2+3ab}{ab}=\dfrac{4a^3b^2}{ab}+\dfrac{2a^2b^2}{ab}+\dfrac{3ab}{ab}=4a^2b+2ab+3$

8 0

2 years ago

A bag contains 2 red, 5 blue, and 3 green marbles. A marble is chosen at random. What is the probability of NOT choosing a red m

Lapatulllka [165]

Step-by-step explanation:

Number of red = 2
Number of blue = 5
Number of green = 3

total number of marbles = 10

<h3>probability of not choosing a red marble = 1--choosing a red marble.</h3>

Because probability is always one(1).

Probability =

 $1 - \frac{2}{10}$ 

 $\frac{8}{10}$ 

 $\frac{4}{5}$ 

Is the probability of not choosing a red marble.

4 0

2 years ago

Six times a number is 45 greater than the product of the number and -3. Find the number.

LiRa [457]

Answer:

Step-by-step explanation:

6a = (a*-3) + 45

then:

6a = -3a + 45

6a + 3a = 45

9a = 45

a = 45/9

a = 5

Check:

6*5 = (5*-3) + 45

30 = -15 + 45

8 0

3 years ago

Use the parabola tool to graph the quadratic function f (x) = 2x2 - 4x + 6.

lubasha [3.4K]

Answer:

Vertex plot is (1,4)

and

second plot point (0,6)

Step-by-step explanation:

You can use the the desmos graph calculator by entering quadratic function f(x) = 2x^2 − 4x + 6

3 0

3 years ago

The table shows the circumference of a tree in centimeters, y, at 2 years.

kati45 [8]

Answer:b

Step-by-step explanation:

6 0

2 years ago