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3 years ago

Which statement is true about the polynomial 3x^2y^2-5xy^2-3x^2y^2+2x^2 after it had been fully simplified?

Mathematics

1 answer:

shtirl [24]3 years ago

8 0

<span>3x^2y^2 - 5xy^2 - 3x^2y^2 + 2x^2
= 2x^2 - 5xy^2

hope that helps</span>

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How do you convert something like 3000mm to km if 1 km equals 1000m? btw - im in elementary - but there's no option for that is

FrozenT [24]

Answer:

Step-by-step explanation: divid e 3000 by 1000

( you can ignor e zeros in this case so 3 divide by 1

6 0

3 years ago

The equation for a parabola has the form y=ax2+bx+c, where a, b, and c are constants and a≠0. find an equation for the parabola

IRISSAK [1]

The equation of parabola is

$y= ax^2 + bx +c$

For point (-1,-9), equation of parabola is

$-9 = a(-1)^2 +b(-1)+c
\\
-9 = a -b+c$

For point (1,7), equation of parabola is

$7 = a(1)^2 + b(1)+c
\\
7 = a + b +c$

For point (-6,-14), equation of parabola is

$-14 = a(-6)^2 +b(-6)+c
\\
-14 = 36a -6b +c$

So we have three equations , which are

$a - b + c =-9,
\\
a + b + c = 7
\\
36a -6b+c = -14$

Subtracting first two equation will give

$-2b = -16
\\
b=8$

Subtracting second and third equation gives

$a+b+c-36a+6b-c = 7+14
\\
-35a +7b = 21
\\
-5a + b =3$

Substituting 8 for b, we will get

$-5a + 8 =3
\\
-5a = -5
\\
a =1$

back substituting 8 for b and 1 for a, we will get

$1+8+c = 7
\\
c = -2$

So we have

$a=1, b=8 and c=-2$

Therefore required equation is

$y= x^2 +8x-2$

7 0

3 years ago

What are the total expenses for a month if someone spends $900 on rent,

Gala2k [10]

Answer:

$1673

Step-by-step explanation:

$900+$290+$55+$30+$70+$145+$87+$40+$56=$1673

6 0

3 years ago

Bryan bought cupcakes for his sister's birthday party. 15 cupcakes had sprinkles on top. The other 35 cupcakes did not have spri

podryga [215]

Answer: 30%

Step-by-step explanation:

Given: Cupcakes have sprinkles = 15

Cupcakes didn't have sprinkles = 35

Total cupcakes = 15+35 = 50

The percentage of the cupcakes had sprinkles = $\dfrac{\text{Cupcakes have sprinkles}}{\text{Total cupcakes}}\times100$

$=\dfrac{15}{50}\times100\\\\= 30\%$

Hence, the percentage of the cupcakes had sprinkles = 30%

3 0

3 years ago

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Lera25 [3.4K]

C because alligator eat him

6 0

3 years ago