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3 years ago

Write a quadratic equations given the roots 5/2 and 9

Mathematics

1 answer:

sukhopar [10]3 years ago

7 0

Answer:

(x-5/2)(x-9).

x^2-5/2x-5/2x+45/2.

Multiply the number by 2.

which is 2(x^2-5/2x-5/2x+45/2).

2x^2-5x-5x+45.

2x^2-10x+45.

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Pls help I really need help pls I need Profesional at math pls pls

Rzqust [24]

I think $6.75 for 15 juice boxes is better because, each juice box is 0.45.

While $5.50 for 11 juice boxes is 0.50.

And if we were to add 0.50 enough times to make 15 juice boxes it would equal 7.50

RIP OFFFFFFF

THE SECOND ONE IS A WAY BETTER OF A DEAL

4 0

2 years ago

ryan is seeling cookies to raise money for charity. he is selling chocolate chip cookies for $10 a package and sugar cookies for

Lapatulllka [165]

Answer:

The number of packages of chocolate chip cookies sold was 44 and the number of packages of sugar cookies sold 161

Step-by-step explanation:

Let

x ----> the number of packages of chocolate chip cookies sold

y ----> the number of packages of sugar cookies sold

we know that

$10x+4y=1,084$ -----> equation A

$x+y=205$ -----> equation B

Solve the system of equations by graphing

The solution is the intersection point both graphs

using a graphing tool

The solution is the point (44,161)

see the attached figure

therefore

The number of packages of chocolate chip cookies sold was 44 and the number of packages of sugar cookies sold 161

8 0

3 years ago

Simplify the radical expression (-9√28a^2*1/3√63a)<br><br> show work

Dovator [93]

A ≥ 0

$-\not9^3\sqrt{28a^2}*\frac{1}{\not3^1}\sqrt{63a}=\\\\ =-3a\sqrt{4*7}*\sqrt{9*7a}=\\\\=-3a*2\sqrt{7}*3\sqrt{7a}\\\\ =-18a\sqrt7*\sqrt 7*\sqrt a=\\\\=-18a*(\sqrt7)^2*\sqrt a =\\\\ =-18a*7*\sqrt a=\\\\ =-126a\sqrt a$

8 0

3 years ago

Plot the image of point Q under a reflection across the -axis.

Jlenok [28]

Answer:

pit it on -4 because your reflecting it on x

7 0

3 years ago

Plz help will mark brainliest if correct

slamgirl [31]

Answer:

In order by appearance

1. rational

2. irrational

3. rational

4. rational

5. irritatinal

6. rational

7. irritational

Step-by-step explanation:

1) 99/264

2) 8√5

3) 7.12

4) 6

5) pi is not a rational number

6) fractions are rational

7) 1/2·(√6-1)

Rational numbers are numbers that can be shown as a ratio or a fraction and irrational numbers are the opposite of that

6 0

3 years ago

Read 2 more answers