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3 years ago

Factor the trinomial 3x2 + 16x + 21

Mathematics

2 answers:

Stells [14]3 years ago

3 0

Answer:

(3x+7)(x+3)

Step-by-step explanation:

Factors 3x^2+16x+21

3x^2+16x+21

=(3x+7)(x+3)

pentagon [3]3 years ago

3 0

Answer:

$3 {x}^{2} + 16x + 21 \\ 3 {x}^{2} + 9x + 7x + 21 \\ 3x(x + 3) + 7(x + 3) \\ = (3x + 7)(x + 3)$

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A campground says campers can rend a square space taking up 225 square feet. How long would one side of the space be?

Helga [31]

Answer:

56.25 ft

Step-by-step explanation:

It is simple, since it is a square the sides are all the same length so you take A=area and divide it by four= h or w or l (height, width, length) so

225/4=56.25

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2 years ago

Please help me solve this step by step please!!

qaws [65]

Answer:

7^(1-3+1) = 7^-3

Step-by-step explanation:

Here is the rule you should know: when multiplying powers of the same base you add the exponents ans when dividing powers of the same base you subtract the exponents.

Also, if there is no number at the exponent, it is 1.

4 0

3 years ago

Read 2 more answers

Solve for x<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B2%7D%20%20%2B%20%20%5Cfrac%7B3%7D%7B4%7D%20%20%3D%2010" id=

Degger [83]

Answer:

x = 18.5

Step-by-step explanation:

Given

$\frac{x}{2}$ + $\frac{3}{4}$ = 10

Multiply through by 4 to clear the fractions

2x + 3 = 40 ( subtract 3 from both sides )

2x = 37 ( divide both sides by 2 )

x = $\frac{37}{2}$ = 18.5

6 0

3 years ago

Read 2 more answers

How many 1 degree are in 4/360 of a circle

Grace [21]

Answer:

4 degrees.

Step-by-step explanation:

A complete circle has 360 degrees.

(4/360) of a circle = (4/360) * 360 degrees = 4 degrees

8 0

3 years ago

Sue Brown is a salesperson at a car dealership. She earned a gross pay of $8000 for the month of June. Her state tax rate is 3.5

Lera25 [3.4K]

Sue Brown owe $280.00 in state taxes for the month. Option B is correct.

Step-by-step explanation:

Gross pay for June= $8000

State tax rate = 3.5%

We need to find how much will Sue Brown owe in state taxes for the month.

We need to find 3.5% of 8000

Solving:

$3.5\% \,\,of\,\,800\\=\frac{3.5}{100}*8000\\=280$

So, Sue Brown owe $280.00 in state taxes for the month.

Option B is correct.

Keywords: Income Tax amount

Learn more about finding income tax amount at:

#learnwithBrainly

4 0

3 years ago