Plz answer 7-12!!!!!!!!!!!!!!!

Mathematics

2 answers:

san4es73 [151]2 years ago

8 0

Answer:

7: is 20+8a

8: is 8w+48

9: is 4a+12b

10: is 35y-21z

11: is 44a-33

12: is 3xy+4x

but give imbadatmathh the points

Step-by-step explanation:

hope this helps

andre [41]2 years ago

8 0

7-12 will equal to -5 :)

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(a - b)(a 2 + ab + b 2) HELP

Mila [183]

Hey there :)

( a - b )( a² + ab + b² )
Let us distribute ( a - b ) into the other

a ( a² ) + a ( ab ) + a ( b² ) - b ( a² ) - b ( ab ) - b ( b² )
a³ + a²b + ab² - a²b - ab² - b³

We can further simplify
a²b - ab² = 0
ab² - ab² = 0

a³ - b³

You can see in the picture which I have attached. It is the 8th formula

7 0

3 years ago

Read 2 more answers

Determine whether the improper integral converges or diverges, and find the value if it converges.

salantis [7]

Answer:

Integral will be diverging in nature

Step-by-step explanation:

We have given integral $\int_{5}^{\infty}\frac{3}{2}x^2dx$

Now after solving the integral

$[\frac{3}{2}\frac{x^3}{3}]$ limit from 5 to infinite

So $[\frac{3}{2}\frac{\infty^3}{3}]-[\frac{3}{2}\times \frac{5^3}{3}]=\infty$

As after solving integral we got infinite value so integral will be diverging in nature

7 0

3 years ago

Anyone good at math ? Thank youuuuu

alekssr [168]

The answer to this is C.17

8 0

3 years ago

Please help ASAP!ill give brainliest !

Vinil7 [7]

The vertex is at (0, 3) so y=a(x-0)²+3, which is y=ax²+3
next, use a given point to find a: 10=a(3)²+3, so 9a=7, a=7/9
the equation is then y= $\frac{7}{9}x^2+3$

as for the first question, the shape is an ellipse, the domain is -5≤x≤5, the range is -3≤y≤3

the equation can be written as : $\frac{x^2}{25}+ \frac{y^2}{9} =1$