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2 years ago

Need help with math work please

Mathematics

1 answer:

barxatty [35]2 years ago

4 0

Answer:

(f+g)(x)=x^2+8+x-2

=x^2+x+6

The answer is the 3rd one in your options.

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X-5y=-15x−5y=−15x, minus, 5, y, equals, minus, 15 Complete the missing value in the solution to the equation. (-5,(−5,left paren

Y_Kistochka [10]

Answer:

<h2>The missing value is 2. The coordinate will be (-5, 2)</h2>

Step-by-step explanation:

The question is not properly written. Find the correct question below.

If x – 5y = -15 . Complete the missing value in the solution to the equation (-5, ____)

Let the coordinate of the variables be (x, y). Comparing the coordinates (x, y) with the given coordinate (-5, __), we will discover that x = -5. To get the y coordinate, we will substitute x = -5 into the given expression as shown;

If x – 5y = -15

-5 - 5y = -15

Adding 5 both sides

-5-5y+5 = -15+5

-5y = -10

Dividing both sides by -5;

-5y/-5 = -10/-5

y = 2

<u>Hence the missing value in the solution of the equation is 2</u>. The coordinate will be (-5, 2)

3 0

2 years ago

If f(x)= x2+2x-10, what id f(-2)

Sindrei [870]

The answer is -18. Hope this helps.

6 0

2 years ago

Two trains travel directly toward each other. One of the trains travels at a rate of 12 km/h while the other travels at a rate o

Schach [20]

Write the equation of the first train: x = 12t
Write the equation of the second train: y = -20t+72, assuming the train one is at the origins when t = 0.
Now solve the equation: 12t=-20t+72,
32t = 72, then t = 2.25 hours. The two train meet after 2.25 hours.
Now the equation of the <span>pigeon is like this: x = 48t.
</span>Then for t = 2.25, we get
$x=2.25\times48=108 km$

<span>The Hyde has flown 108 km when the trains meet.</span>

4 0

3 years ago

Find the solution set for this equation.<br> a2 + a=0<br> Separate the two values with a comma.

ira [324]

Answer:

a = 0,-1

Step-by-step explanation:

a^2 + a=0

Factor out an a

a(a+1) =0

Using the zero product property

a=0 a+1 =0

a=0 a= -1

6 0

2 years ago

Order the numbers from greatest to least. [-0.5, 1.5, 0, -5, 1.25]

DiKsa [7]

Answer:

d. 1.5, 1.25, 0, -0.5, -5

Step-by-step explanation:

1.5 > 1.25 > 0 > -0.5 > -5

Well it is obvious that 1.5vis greater than 1.25.

0 is greater than any negative integers, and that the higher negative number it's value is lower. For example:

-10,000 is less than -100

-4 is greater than -10

8 0

2 years ago