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Flauer [41]
3 years ago
9

(2x2 + 3x - 1) + (x2 - x + 2)​

Mathematics
2 answers:
lubasha [3.4K]3 years ago
7 0
The answer is 5+4x

I hope it helps
marysya [2.9K]3 years ago
4 0

Answer:

x = 2

Step-by-step explanation:

7x -1 + x+2

6x = 3

x = 2

!;!;!;?;/;/;/;/;/;;

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Karabo is training by running for the Comrades Marathon ; he starts his training by running 40km per week . Each week he increas
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3 0
3 years ago
What is EQUATION of<br> the line below?
julia-pushkina [17]
3, -1 !!!!!!!!!!!!!!
5 0
3 years ago
A tunnel is in the shape of a parabola. The maximum height is 16 m and it is 16 m wide at the base, as shown below.
NeX [460]
Vertex at the origin and opening down → y=ax^2
Width: w=16
x=w/2→x=16/2→x=8
x=8, y=-16→y=ax^2→-16=a(8)^2→-16=a(64)→-16/64=a(64)/64→-1/4=a→a=-1/4

y=ax^2→y=-(1/4)x^2

7 m from the edge of the tunnel → x=w/2-7=8 m-7 m→x=1 m
x=1→y=-(1/4)x^2=-(1/4)(1)^2=-(1/4)(1)→y=-1/4

Vertical clearance: 16-1/4=16-0.25→Vertical clearance=15.75 m

Please, see the attached file.

Answer: Third option 15.75 m

3 0
3 years ago
Read 2 more answers
Given the linear equation 3x + y = 5, find the slope of its graph
umka2103 [35]

Answer:

B) -3

Step-by-step explanation:

1. First you have to write the equation in slope intercept form. To do that, you must have y be alone on one side.

2. move the 3x to the right side with the 5 by subtracting 3x from both sides. Since 3x will cancel on the left, y will be left alone. y=-3x+5

3. Now that you're in slope intercept form, you can find the slope easily. The slope will always be the number in front of x. In this case, the number in front of x is -3. Therefore, -3 is your slope!

7 0
3 years ago
Read 2 more answers
Brainly the polynomial x 3 + 5x 2 - ­57x -­ 4189 expresses the volume, in cubic inches, of a shipping box, and the width is (x+3
Simora [160]
Height would be 21 inches, depth would be 5. 
8 0
3 years ago
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