All categories

2 years ago

What is 5m2- 15m- 200

Mathematics

1 answer:

vitfil [10]2 years ago

3 0

Answer:

5(m + 5) (m - 8)

Step-by-step explanation:

5m2- 15m- 200

Start by pulling 5 out.

5(m^2 - 3m - 40)

We consider all factors of 40

1 40

2 20

4 10

5 8

Based on the middle term we know that 5 and 8 are our best option.

5(m 5) (m 8)

We know the signs have to be one + and one - because a - * - = + and + * + = +

Since 5 - 8 would give us -3 we know that our answer is

5(m + 5) (m - 8)

You might be interested in

Anyone can help me with this math question?

Gennadij [26K]

Answer:

1,890 feet

Step-by-step explanation:

2 inches=30 feet

4.2 inches= 63 feet

63ft x 30 ft= 1,890ft

8 0

2 years ago

Help help (12 points)

iren2701 [21]

Answer:

2m+2m

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

I need help fast will give brainiest!!!!

Sergio039 [100]

Answer:

Step-by-step explanation:

Please mark me brainiest

4 0

2 years ago

Solve for x and y please!

galina1969 [7]

Answer:

$x = 8$

$y=2\sqrt{3}$

Step-by-step explanation:

The figure is composed of 3 Right triangles. To find the values of the variables x and y we use the Pythagorean theorem to propose one equation.

$x^2 =4^2 + (4\sqrt{3})^2$

Now we solve for x

$x=\sqrt{4^2 + (4\sqrt{3})^2}$

$x=\sqrt{16 +16*3}\\\\x=\sqrt{64}\\\\x=8$

Let's call z at the angle opposite to y

Then we have that:

$sin(z) =\frac{opposite}{hypotenuse}$

Where

$hypotenuse = 8$

$opposite=4$

$sin(z) =\frac{4}{8}$

$z=sin^{-1}(\frac{1}{2})$

$z=30$

Now we use this angle to find the length y

$sin(z) =\frac{opposite}{hypotenuse}$

Where in this case

$hypotenuse = 4\sqrt{3}$

$opposite=y$

$z=\°30$

$sin(30\°) =\frac{y}{4\sqrt{3}}$

$y=sin(30\°)*4\sqrt{3}$

$y=2\sqrt{3}$

6 0

3 years ago

What if it was 20% off the original price?

Lera25 [3.4K]

Let the original price = x
Then, it would be: 0.20 * x

In short, Your Answer would be 0.20x

Hope this helps!

7 0

3 years ago