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motikmotik
3 years ago
11

What are the solutions to the system of equations? {y=2x2+6x−10 y=−x+5

Mathematics
2 answers:
nadya68 [22]3 years ago
8 0

Answer:

I think this is mistake because y=2x^2+6x-10 y=x+5 this is the right

inessss [21]3 years ago
3 0
Answer: x = -5, 3/2 y = 10, 7/2

Explanation:

y = 2x^2 + 6x - 10 (1)
y = - x + 5 (2)

=> 2x^2 + 6x - 10 = - x + 5
2x^2 - 7x - 15 = 0
(2x - 3)(x + 5) = 0
=> 2x - 3 = 0
2x = 3
x = 3/2
=> x + 5 = 0
x = -5

According to (2):

y = -x + 5
y = -(-5) + 5
y = 5 + 5 = 10

y = -x + 5
y = -(3/2) + 5
y = -(3/2) + 10/2
y = 7/2

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To obtain the graph of y=(x- 8)2 shift the graph of y= x2
bonufazy [111]
You would shift this to the right 8 places. This is because in vertex form, the x value is the opposite of the number in the parenthesis with the x. 
6 0
3 years ago
Read 2 more answers
HELP ASAP i dont know how to do any of this
nadya68 [22]

Answer:

Step-by-step explanation:

Circumference is= to diameter * Pi

6\pi = 6*3.14=18.84\\15\pi=15*3.14=47.1

For the ones that are radius, double it, then pi

21*2\pi = 42\pi =42*3.14=131.88\\6.7*2\pi=13.4\pi =13.4*3.14=47.076

6 0
3 years ago
Could someone please explain to me how to solve this problem? Thanks! :)
BartSMP [9]

Answer:

First of all since they are dividing subtract the powers of the base from each other .

Make sure the bases are the same.

((6^7-6)(3^3-4))³

((6)(3^-1))³

(6³)(3^-3)

216 × 1/27

= 8

That's option d.

Hope this helps.

6 0
3 years ago
If anyone could help answer this question that would be great.
lys-0071 [83]
I believe the answer is 64
First break it off into 2 rectangles on is 4 width and 10 length other is 8 length and 10 width. Then multiple to find area 10•4=40 8•3=24 then add 40+24= 64
3 0
3 years ago
It says it in the image please help me
r-ruslan [8.4K]

Answer:

The answer you have selected should be correct.

6 0
3 years ago
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