All categories

3 years ago

???????????????????????????????????????????

Mathematics

1 answer:

shusha [124]3 years ago

4 0

For question 1, just plug in -2 as h.

 $-2(-2)^2-(-2)+2$

You would get...

$h(-2)=-4$

Hope this helped! -4, or option 1, is correct!

You might be interested in

The options for the first blank are 45, 240, 270, and 315

Schach [20]

Answer:

The solutions are 270° and 450°.

Step-by-step explanation:

Given:

$cos\frac{x}{2} =\frac{\sqrt{2} }{2}$ .

So, the second and third quadrant angle to be calculated.

$cos\frac{x}{2}=135$

$=x=270$ °.

And, $cos\frac{x}{2}=225$

$=x=450$ °

Therefore, the solutions are 270° and 450°.

5 0

3 years ago

Evaluate the expression when x=20 and y=4.

klio [65]

Answer:

Hello, your question is missing. You did not show us a picture of the problem, you did not write it either. Please send it again.

Step-by-step explanation:

3 0

2 years ago

Write an equation for the following problem

Novosadov [1.4K]

Answer:

I believe I know the answer! Please do tell me If I am wrong but math was never my strong sute so tell me If I’m wrong please!

Step-by-step explanation:

8n-15=27 or

(8xn)-15=27

Bonus: n= 5.25 or 5 1/4

(I think)

4 0

3 years ago

What property is used in method 1?

Anvisha [2.4K]

Answer:

Division Property of Equality

Step-by-step explanation:

Divide both sides by 5

So answer : Division Property of Equality

6 0

3 years ago

Read 2 more answers

Solve the equation for x, where x is a real number (5 points): 2x^2 + 7x - 9 = -3

Tanya [424]

Add 3 to both sides so that the equation becomes 2x^2 + 7x - 6 = 0.
To find the solutions to this equation, we can apply the quadratic formula. This quadratic formula solves equations of the form ax^2 + bx + c = 0
                              x = [ -b ± √(b^2 - 4ac) ] / (2a)
                              x = [ -7 ± √(7^2 - 4(2)(-6)) ] / ( 2(2) )
                              x = [ -7 ± √(49 - (-48) ) ] / ( 4 )
                              x = [ -7 ± √(97) ] / ( 4)
                              x = [ -7 ± sqrt(97) ] / ( 4 )
                              x = -7/4 ± sqrt(97)/4
The answers are -7/4 + sqrt(97)/4 and -7/4 - sqrt(97)/4.

6 0

3 years ago