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3 years ago

HELP WILL NAME BRAINLIEST

Mathematics

1 answer:

Anvisha [2.4K]3 years ago

6 0

Answer

it was on my test

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Which quadratic equation has solutions x=8 and x=−1?

andrezito [222]

There are two ways you can do this

$Using the formula$

${x}^{2} - (sum \: of \: roots)x + poduct \: of \: roots = 0$

${x}^{2} - (8+-1)x + - 1 \times 8 = 0$

${x}^{2} - 7x - 8 = 0$

$Working backwards$

$x = 8 \: or \: x = - 1$
$\Rightarrow x-8=0 \: or \: x+1=0$

$\Rightarrow (x-8)(x + 1)=0$
$\Rightarrow {x}^{2} + x -8x - 8 = 0$
$\Rightarrow {x}^{2} - 7x - 8 = 0$

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3 years ago

Someone please hurry and help with the two I got wrong !!!!!!!

steposvetlana [31]

Answer:

-2

Step-by-step explanation:

yeah-ya.........

right?

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2 years ago

What is the sign of -9. (0/-3)

katovenus [111]

Answer:

- is the answers for the question

Step-by-step explanation:

please mark me as brainlest

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3 years ago

6 1⁄3 + 7 1⁄4 – 2 1⁄2 =

Korvikt [17]

Answer:

11 1/12

Step-by-step explanation:

6 1/3 = 19/3

7 1/4 = 29/4

2 1/2 = 5/2

19/3 + 29/4 - 5/2

We must find the LCM of 3, 4, and 2. This happens to be 12

3*4 = 12

4*3 = 12

2*6 = 12

Multiply each fraction by the factor that'll get it to 12.

19/3 * 4/4 = 76/12

29/4 * 3/3 = 87/12

5/2 * 6/6 = 30/12

Now go through the problem

76/12 + 87/12 - 30/12

76 + 87 = 163

163/12 - 30/12

163 - 30 = 133

133/12

Simplify

133/12 = 11.0833... or 11 1/12

Hope this helps.

6 0

3 years ago

What are same-side interior angles

REY [17]

Step-by-step explanation:

same side interior angles are formed when a transversal line intersects two or more lines

6 0

3 years ago

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