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Andrej [43]
2 years ago
6

Given f(x) = 3x2 + 7x and g(x) = 2x2 - X - 1, find f(x) + g(x).

Mathematics
2 answers:
avanturin [10]2 years ago
7 0
I believe the answer is.

5x^2 + 6x - 1
Sever21 [200]2 years ago
6 0

f(x) is a fancy way of saying y. So for now I will refer to y.

f(x)

y=3x+2+7x

g(x)

y=2x2-x-1

3x+2+7x+(2x2)-x-1 = f(x)+g(x)

Now lets add

10x+2+4-x-1=f(x)+g(x)

9x+5=f(x)+g(x)

Brainliest/Heart would help

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The equation Y-5<br> 5(x-4) is written in point-slope form. What is the y-intercept of the equation?
nirvana33 [79]

Answer:

The y-intercept is -15.

Step-by-step explanation:

y - 5 = 5(x - 4) is our equation in point-slope form.

point slope form is = y - y1 = m( x - x1)

So, we know that the slope is 5 and one point is (4, 5)

We can use this point and the slope to find the y -intercept.

y = mx + b is slope intercept form.

Let's input the values we know to find the y-intercept.

5 = 5(4) + b

5 = 20 + b

-15 = b

The y-intercept is -15.

4 0
3 years ago
Read 2 more answers
A trapezoid has bases that measure 10cm and 6cm. The height of the figure is 15cm. What is the area of the trapezoid?
kati45 [8]
Hello!

To find the area of a trapezoid you use the equation

A = \frac{a+b}{2} h

A is area
h is height
a and b are the bases

Put in the values we know

A =  \frac{10+6}{2} *15

Add

A =  \frac{16}{2} *15

Divide

A = 8 * 15

Multiply

A = 120

The answer is 120cm squared

Hope this helps!
8 0
3 years ago
Pleaseeeee i need help
ziro4ka [17]

Answer:

110687192.78951, 6488.47368421, 4214, 0.0464, 0.03626

SIMPLIFIED WAY OF SAYING IT:

Last One to First Box

3rd One to 2nd Box

1st one to 3rd box

2nd one to 4th box

4th one to 5th box

Step-by-step explanation:

(4.3*10^(6))*(9.8*10^(-4)) = 4,214

(2.9*10^7)*(1.6*10^-9) = 0.0464

(4.7*10^3)*(8.6*10^-7)/(3.8*10^-4)*(6.1*10^2) = 6488.47368421

(4.9*10^3)*(7.4*10^-6) = 0.03626

Last one = 110687192.78951

3 0
1 year ago
When a die is rolled, what is the theoretical probability that number five will be rolled? <br><br>​
Marta_Voda [28]

Answer: 1/6

Step-by-step explanation: there is 6 faces on a standard die, one of them is 5.

7 0
1 year ago
Julie is drawing a map of the town. She knows that City Hall is 3 miles
Ainat [17]
1.5 inches should be right
8 0
2 years ago
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