4 years ago

Please help me !!☹️❤️

Mathematics

1 answer:

Andreyy894 years ago

6 0

Answer:

(x-10) (x+1) =0

x=10 x=-1

Step-by-step explanation:

x^2 -9x-10 =0

Factor

What two numbers multiply to -10 and add to -9

-10*1 = -10

-10+1=-9

(x-10) (x+1) =0

Using the zero product property

x-10 = 0 x+1=0

x-10+10=0+10 x+1-1=0-1

x=10 x=-1

These are the x intercepts

You might be interested in

Andrew is evaluating his current financial position by totaling his monthly cash inflows and outflows. His cash inflows each mon

Zarrin [17]

15 dollars left each month

3 0

4 years ago

Mrs. Jones is planning a field trip to the state capitol building for all of the sixth graders at her school. She needs $3.75 to

katen-ka-za [31]

Answer:

= $1226.25

Step-by-step explanation:

There are 327 students

Each student lunch is $3.75

She needs 327 of these $3.75 lunches

So 327 times $3.75

= $1226.25

5 0

3 years ago

In the math problem, "450 is 75% of what number?" 450 is the ___.

Anni [7]

Answer:

600

Step-by-step explanation:

Since 3/4 of 100 is 75, we have to divide 450 by three.

450 ÷ 3 = 150

150 x 4 = 600

Hope this helps :)

Please mark brainliest ;)

6 0

3 years ago

Read 2 more answers

While working on the roof of his house, John leans a 15 foot ladder against a second story window. If the distance on the ground

Minchanka [31]

Answer:

12 foot.

Step-by-step explanation:

Given that,

A ladder leans a 15 foot ladder against a second story window.

The distance on the ground between the base of the ladder and the house is 9 feet.

We need to find the height of the ladder. Let it is h.

If we consider a right angles triangle such that 15 foot is hypotenuse, 9 feet is base, then we need to find the perpendicular height of the triangle. Using Pythagoras theorem to find it.

$15^2=9^2+h^2\\\\h^2=15^2-9^2\\\\h^2=225-81\\\\h=12\ \text{foot}$

So, the height of the ladder that reaches the second story window is 12 foot.

8 0

3 years ago

Read 2 more answers

MATH HW URGENT!!! Whoever solves one question at least will be brainliest!!!!

Natali5045456 [20]

Answer: Equation of the line from D to C is y=2x+6?

Step-by-step explanation: Lines A to B and D to C looks parallel meaning they have the same slope but different Y intercept?

6 0

3 years ago