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3 years ago

What is the simplified form of this expression?

Mathematics

1 answer:

Alexxx [7]3 years ago

5 0

Answer:

Option 4

Step-by-step explanation:

=> $-3x^2+2x-4 + 4x^2+5x+9$

Combining like terms

=> $-3x^2+4x^2+2x+5x-4+9$

=> $x^2+7x+5$

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Find angel v (use pic)

Setler [38]

Answer: 63 degrees.

Step-by-step explanation:

7x + 4 +5x+3+2x+5=180 degrees

14x+12=180 -12 Degrees

14x / 14 = . 168 /14

x=12

5(12) +3

3 0

3 years ago

What are the coordinates of the point on the directed line segment from (5,5) to

iogann1982 [59]

Answer:

$(x,y) = (6,2)$

Step-by-step explanation:

Given

$(x_1,y_1) = (5,5)$

$(x_2,y_2) = (8,-4)$

$m:n = 1:2$

Required

Determine the coordinate of the partition

This is calculated using:

$(x,y) = (\frac{mx_2 + nx_1}{m + n},\frac{my_2 + ny_1}{m + n})$

Substitute values for m,n,x's and y's

$(x,y) = (\frac{1 * 8 + 2 * 5}{1+2},\frac{1*-4 + 2*5}{1 + 2})$

$(x,y) = (\frac{18}{3},\frac{6}{3})$

$(x,y) = (6,2)$

6 0

2 years ago

Using the graph, what does f(8) equal? PLEASE I NEED SO MUCH HELP!!

Shtirlitz [24]

Answer:

Step-by-step explanation:

The question is not terrifically worded. What it means is "What is the y value when x = 8" That's what f(8) conveys to you.

The answer (though zero is not marked and should be) is 1 unit above 0.

The answer is f(8) = 1 He's heading back.

5 0

2 years ago

If a+e = 11 a²-f=15 f+c=6 c×a-e=13 what is the value of the variables

CaHeK987 [17]

Answer:

a=4

c=5

e=7

f=1

Step-by-step explanation:

the simplest method would be to start with a(2)"squared" (being '4' as this will get you closest to 15. So 16 -1 (being 'c') = 15. now plug those into the other equations and work the other numbers out.

8 0

3 years ago

Volume (look at the picture)

bonufazy [111]

Answer:

108

Step-by-step explanation:

You start by finding the area of the trapezoid, which is ((3+5)/2) 3 = 12, then you multiply 12 by 9 which is 12*9 = 108

5 0

2 years ago