All categories

4 years ago

Factor completly: x3 + 7x2 + 10x

Mathematics

2 answers:

Andrei [34K]4 years ago

5 0

your answer is x(x+2)(x+5)

x3+7x2+10x

=x(x+2)(x+5)

Oksanka [162]4 years ago

4 0

${x}^{3} + 7 {x}^{2} + 10x \\ = x( {x}^{2} + 7x + 10) \\ = x( {x}^{2} + 5x + 2x + 10) \\ = x(x + 5)(x + 2)$

You might be interested in

The circumference of a circle is 30t. What is its area?

labwork [276]

Answer:

$A=\frac{225t^2}{\pi}$ given the circumference is 30t.

Step-by-step explanation:

The circumference of a circle is $C=2\pi r$ and the area of a circle is $A=\pi r^2$ assuming the radius is $r$ for the circle in question.

We are given the circumference of our circle is $2 \pi r=30t$ .

If we solve this for r we get: $r=\frac{30t}{2\pi}$ . To get this I just divided both sides by $2\pi$ since this was the thing being multiplied to $r$ .

So now the area is $A=\pi r^2=\pi (\frac{30t}{2 \pi})^2$ .

Simplifying this:

$A=\pi (\frac{30t}{2 \pi})^2$ .

30/2=15 so:

$A=\pi (\frac{15t}{\pi})^2$ .

Squaring the numerator and the denominator:

$A=\pi (\frac{(15t)^2}{(\pi)^2}$

Using law of exponents or seeing that a factor of $\pi$ cancels:

$A=\frac{(15t)^2}{\pi}$

$A=\frac{15^2t^2}{\pi}$

$A=\frac{225t^2}{\pi}$

4 0

3 years ago

Jenny is going to tile her kitchen floor. She has taken out all the furniture and appliances. Jenny wants to know if she has got

Pavlova-9 [17]

Complete Question:

Jenny is going to tile her kitchen floor of area 30 m^2. She has taken out all the furniture and appliances. Jenny wants to know if she has got enough money to buy the tiles.The tiles are sold in packs, which cover 2m2 Jenny has a discount card which gives her 25% off any marked price at the DIY shop. The tiles are marked at £9.60 Jenny has £100 to spend on the tiles. How much extra does Jenny need to buy the tiles? Give your answer in pence.

Answer:

Extra amount needed by Jenny to buy the tiles = £8

Step-by-step explanation:

Floor area = 30.0 m^2

Area covered by a pack of tiles = 2.0 m^2

Number of packs needed = 30/2

Number of packs needed = 15

Price of a pack of tiles = £9.60

Discount = 25%

Jenny will pay 75% of the marked price

Amount Jenny will pay for a pack of tiles = 75% of 9.60 = 0.75*9.60

Amount Jenny will pay for a pack of tiles = £7.20

Amount Jenny will pay for 15 packs of tiles = 7.20 x 15

Amount Jenny will pay for 15 packs of tiles = £108

The amount of money Jenny currently has = £100

Extra amount needed by Jenny to buy the tiles = £108 - £100

Extra amount needed by Jenny to buy the tiles = £8

5 0

3 years ago

Answer for a brainlist!!!!

Nitella [24]

Answer:

Market A

Step-by-step explanation:

MA) 28/12= 2.33333

MB) 23.75/10= 2.375

MC) 15.75/6=2.625

Market A has the best price per shrimp

6 0

3 years ago

5x-8÷45x^2-42x-48<br><br> please solve

Valentin [98]

The answer is: 1/ 3(3x+2)

6 0

4 years ago

ANSWER IN THE COMMENTS SECTION

ryzh [129]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers