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3 years ago

Plz help, will give brainiest

Mathematics

1 answer:

Tems11 [23]3 years ago

7 0

Answer:

4x^2 + 8x + 4

4(x^2 + 2x + 1) - remove GCF of 4

4(x + 1)(x + 1) - factor

4(x + 1)^2 - collect like terms

Step-by-step explanation:

Then also expand it out by distributing:

21x^3 + 35x²

Form 1:

21x^3 + 35x² - unfactored

Form 2:

7x²(3x + 5) - factored with GCF of 7x² brought to the front

Update:

You could also multiply two binomials and make a quadratic.

Example:

(7x + 2)(3x + 5)

7x(3x + 5) + 2(3x + 5)

= 21x² + 35x + 6x + 10

= 21x² + 41x + 10

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At the book store, you purchased some $3 clearance mystery books and $8

nasty-shy [4]

Answer:

15 of $3 books and 4 of the $8 books

Step-by-step explanation:

15×3= 45

8 × 4= 34

45+32= 77

3 0

3 years ago

15/16 divided by 20 7/15 divided by 14

olga2289 [7]

Answer:

The first is 0.046 and the second is 0.033

Step-by-step explanation:

4 0

4 years ago

Use the graph to complete the statements.

anygoal [31]

The slope of JK is -6/5.

The slope of PQ is 12/ 15.

These lines are neither parallel nor perpendicular.

Step-by-step explanation:

From the graph shown,

It can be determined that the point J is (0,5) and K is (10,-7).

The point P is (-5,-8) and Q is (10,4).

The formula for slope is given by,

Slope = $\frac{y2-y1}{x2-x1}$

To find the slope of line JK :

J ⇒ (0,5) = (x1,y1)

K ⇒ (10,-7) = (x2,y2)

Slope of JK = $\frac{-7-5}{10-0}$

⇒ $\frac{-12}{10}$

⇒ $\frac{-6}{5}$

∴ The slope of JK is -6/5.

To find the slope of line PQ :

P ⇒ (-5,-8) = (x1,y1)

Q ⇒ (10,4) = (x2,y2)

Slope of PQ = $\frac{4+8}{10+5}$

⇒ $\frac{12}{15}$

∴ The slope of PQ is 12/ 15.

To find the relation between two lines :

The parallel lines have same slope.
The perpendicular lines have a slope of negative reciprocal.

∴ These lines are neither parallel nor perpendicular.

6 0

3 years ago

Read 2 more answers

a population of bacteria grows at a rate of 45% the initial population contains an initial population of 350 what will populatio

monitta

You would use the A=Pe^rt equation here. A (total amount)= P (initial amount) e^r(rate)x t(time). Here is the equation for you to plug into your calculator. A=350e^0.45x10. The answer is..31505.99596

5 0

4 years ago

Please help with this! Jen is deciding to get a new phone. One deal is a free phone with a two year contract, but she will have

Gnom [1K]

All you have to do is add 399 to 10 and then multiply by ten. Then you get 199 and multiply by .08 and multiply that by ten. Then you subtract.

7 0

3 years ago