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3 years ago

Add 3x2-4x+5, 9x - 10+2x2 and 7-5x2

Mathematics

2 answers:

mote1985 [20]3 years ago

6 0

Answer:

5x+2

Step-by-step explanation:

(3x2-4x+5)+(2x2+9x-10)+(-5x2+7)

Combine like-terms

The x-squared gets cancelled out

And you are left with 5x +2

Eva8 [605]3 years ago

4 0

I thinks this is the solution for this question. I tried doing it with explanations for you :) hope it helps

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1.- What type of parabola is this?

xz_007 [3.2K]

Answer:

Part 1

Sideways or "horizontal" parabola with a horizontal axis of symmetry.

Part 2

The vertex is the turning point: (-3, 1)

Part 3

Vertex form of a horizontal parabola:

$x=a(y-k)^2+h$

where:

(h, k) is the vertex
a is some constant
If a > 0 the parabola opens to the right.
If a < 0 the parabola opens to the left.

Point on the curve: (-1, 2)

Substituting the vertex and the found point into the formula and solving for a:

$\implies -1=a(2-1)^2-3$

$\implies -1=a-3$

$\implies a=2$

Part 4

Equation for the given parabola in vertex form:

$x=2(y-1)^2-3$

Equation in standard form:

$x=2y^2-4y-1$

4 0

2 years ago

I needdddd helppppppppp

antoniya [11.8K]

Answer:

i think it d

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Determine whether the triangles are similar. or not.

Mashcka [7]

the answer is d not similar

6 0

3 years ago

Compare 4 x 105 and 5 x 103. A) 4 x 105 is 80 times larger than 5 x 103 B) 4 x 105 is 8 times larger than 5 x 103 Eliminate C) 4

vova2212 [387]

The answer is 80 times larger than 5 x 10^3

6 0

3 years ago

Use synthetic division to find the expression for the area of the base of a rectangular prism with height x 4 and volume x3 2x2

IRINA_888 [86]

The expression for the area of the base of Prism is x2 – 2x – 9

The volume of a rectangular prism is this

Volume = Area x Height

Substituting the given expressions

x3 + 2x2 - 17x - 36 = Area x (x + 4)

Area = (x3 + 2x2 - 17x - 36) / (x + 4)

Now, let's use synthetic division

-4 | 1 2 -17 -36

---- __-4___8___36

1 -2 -9 0

The expression for the area is

Area = x2 - 2x - 9

Learn more about Synthetic Division:

brainly.com/question/14645972

#SPJ4

6 0

2 years ago