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Levart [38]
3 years ago
8

The roots of the equation 2x^2+8x-7=-2 are?

Mathematics
1 answer:
olchik [2.2K]3 years ago
6 0
<span>2x^2+8x-7=-2
</span><span>2x^2+8x - 5 = 0

using the formula:- x = [-8 +/- sqrt(8^2 - 4*2*-5) ]  / 4
                                  =  -2 +/- sqrt 104)/2
                                  = 0.5495 ,   -4.549
</span>
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How much more would the value of y be on the graph than its value
kipiarov [429]

Answer:

180

Step-by-step explanation:

From the table :

Slope :

m = (y2 - y1) / (x2 - x1)

m = (100 - 80) / (5 - 4)

m = 20 / 1

m = 20

y = 20x

Hence, when, x = 12

y = 20 * 12

y = 240

From the graph:

Slope :

m = (y2 - y1) / (x2 - x1)

m = (280 - 70) / (8 - 2)

m = 210 / 6

m = 35

y = 35x

When x = 12

Graph :

y = 35 * 12

y = 420

Difference :

420 - 240

= 180

6 0
3 years ago
Suppose one bag contains 500 cubic inches of confetti. How many bags will Student Government need to fill 100 containers? If the
Vanyuwa [196]

The number of bags that they will need if each bag contains 500 cubic inches of confetti is 20,000

<h3>How to find the total volume ?</h3>

One bag contains 500 cubic inches of confetti.

Therefore,

1 bag = 500 inches³

The student need to fill 100 containers with the bag.

Each container can accomodates 100,000 cubic inches.

Therefore,

1 bag = 500 inches³

100,000inches³ = 1 container = 200 bags

Therefore,  

100 containers will contain 20, 000 bags of confetti.

learn more on volume here: brainly.com/question/10224096

5 0
2 years ago
Cal can make 6 bracelets in 2 hours. How many bracelets can he make in 3 hours?
Kobotan [32]

Answer:

9 bracelets

Step-by-step explanation:

Divide 6/2 = 3 bracelets per hour

3 bracelets * 3 hours = 9 bracelets

6 0
2 years ago
Read 2 more answers
What number comes next in this pattern 2,4,8,16,32
exis [7]
2+2 = 4
4+4 =8
8+8 = 16
16+16 = 32
32+32 = 64
and so on :)

5 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=6-3%2F4x%2B1%2F3%3D1%2F2x%2B5" id="TexFormula1" title="6-3/4x+1/3=1/2x+5" alt="6-3/4x+1/3=1/2x
Vikki [24]

Answer:

X=1 1/3 or

X=1.3

Step-by-step explanation:

Hope I helped u

6 0
2 years ago
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