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2 years ago

REPOST* Please help me (brainiest) No links please

Mathematics

1 answer:

vazorg [7]2 years ago

7 0

Answer:

Can you add the box plots pls

Step-by-step explanation:

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Find the sum of the roots of the quadratic x^2 + 7x - 13 = 0

Hoochie [10]

Answer:

-7

Step-by-step explanation:

You use the quadratic formula of $ax^{2} +bx+c = 0$ to get:

a = 1

b = 7

c = -13

then you plug that into x= (-b ± √b²-4ac)/(2a) :

x= ( -7 ± √7²- 4(1)(-13) )/(2(1))

$x=-\frac{7}{2} + \frac{\sqrt{101}}{2} \\\\x=-\frac{7}{2} - \frac{\sqrt{101}}{2}$

The sum of these two x values turns out to be:

$x=-\frac{7}{2} + \frac{\sqrt{101}}{2}+( -\frac{7}{2} - \frac{\sqrt{101}}{2} )= -\frac{14}{2} = 7$

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2 years ago

Shane's age is 8 years more than three times Edward's age. Their combined age is 56 years.

natima [27]

24 the answr is 24 this was mad easy

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1 year ago

Read 2 more answers

Mrs. Pascal has a candy jar that contains 5 Jolly Ranchers and 13 jawbreakers. Solve each of the following problems and explain

UkoKoshka [18]

Answer:

Step-by-step explanation:

The ratio is 5:13 and the total number of candy is 18. If the total amount of candy increased by 40x then both candy values would increase by 40x. There are 200 Jolly ranchers and 520 jawbreakers.

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2 years ago

I need help with this

Trava [24]

Answer:

https://www.mathpapa.com/algebra-calculator.html

Step-by-step explanation:

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2 years ago

Can someone please help me with this?

patriot [66]

The answer is 3y=-9x-6

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2 years ago