3 years ago

I’m having problems with these type of problems

Mathematics

1 answer:

castortr0y [4]3 years ago

4 0

Answer: x=-5 or x=2

Step-by-step explanation:

x^2+3x-10=0

x^2+5x-2x-10=0

x(x+5)-2(x+5)=0

(x+5)(x-2)=0

x+5=0 or x-2=0

x=-5 or x=2

You might be interested in

Use distributive property to express 24+40

GREYUIT [131]

8(3+5)...they have the same factor which is 8..check

6 0

3 years ago

Michael's car can travel 25 miles on one gallon of gas. The cost of gas is $3.75 per gallon. Which equation could calculate the

Sedaia [141]

T = 3.75n over 25 (make it a fraction)

6 0

3 years ago

A person can pay $33 for a membership to the history museum and then go to the museum

Lemur [1.5K]

Answer:

42$

Step-by-step explanation:

The person pays 33$ for a membership,and then visits the museum 9 times.So 33+(9*1)=42

4 0

3 years ago

Read 2 more answers

In Mr. Dixon's math class, 7 out of 20 students are in the math club. What percent of the students are in the math club?

Ganezh [65]

7/20 = 0.35
35 percent.

5 0

2 years ago

Read 2 more answers

How do I find the x and the y

mart [117]

Answer:

x = 22

y = 35

Step-by-step explanation:

Because its an isosceles triangle, you know the base angles are equal so:

$3x - 11 = 2x + 11$

Solving:

subtract 2x from both sides

$x-11=11$

add 11 to both sides

$x = 22$

Next, find the angle measures of the two base angles:

$3*22-11\\66-11\\55$

To find y, you know that the interior angles of the whole triangle add up to 180, so you have

$55 + 55 + 2y = 180$

solving,

$110 + 2y = 180$

subtract 110 from both sides

$2y = 70$

divide both sides by 2

$y = 35$

3 0

2 years ago

Read 2 more answers