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mojhsa [17]
3 years ago
11

Which of the following functions is quadratic?

Mathematics
2 answers:
jenyasd209 [6]3 years ago
8 0

Answer:

A

Step-by-step explanation:

charle [14.2K]3 years ago
7 0

Answer:

a.

Step-by-step explanation:

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I need extra help please, -7y^2-2y^2+y^3y-2y+5y^3-2y
joja [24]

Answer:

How to solve your problem

−

7

2

−

2

2

+

3

−

2

+

5

3

−

2

-7y^{2}-2y^{2}+y^{3}y-2y+5y^{3}-2y

−7y2−2y2+y3y−2y+5y3−2y

Simplify

1

Combine exponents

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7

2

−

2

2

+

3

−

2

+

5

3

−

2

-7y^{2}-2y^{2}+{\color{#c92786}{y^{3}y}}-2y+5y^{3}-2y

−7y2−2y2+y3y−2y+5y3−2y

−

7

2

−

2

2

+

4

−

2

+

5

3

−

2

-7y^{2}-2y^{2}+{\color{#c92786}{y^{4}}}-2y+5y^{3}-2y

−7y2−2y2+y4−2y+5y3−2y

2

Combine like terms

−

7

2

−

2

2

+

4

−

2

+

5

3

−

2

{\color{#c92786}{-7y^{2}}}{\color{#c92786}{-2y^{2}}}+y^{4}-2y+5y^{3}-2y

−7y2−2y2+y4−2y+5y3−2y

−

9

2

+

4

−

2

+

5

3

−

2

{\color{#c92786}{-9y^{2}}}+y^{4}-2y+5y^{3}-2y

−9y2+y4−2y+5y3−2y

3

Combine like terms

−

9

2

+

4

−

2

+

5

3

−

2

-9y^{2}+y^{4}{\color{#c92786}{-2y}}+5y^{3}{\color{#c92786}{-2y}}

−9y2+y4−2y+5y3−2y

−

9

2

+

4

−

4

+

5

3

-9y^{2}+y^{4}{\color{#c92786}{-4y}}+5y^{3}

−9y2+y4−4y+5y3

4

Rearrange terms

−

9

2

+

4

−

4

+

5

3

{\color{#c92786}{-9y^{2}+y^{4}-4y+5y^{3}}}

−9y2+y4−4y+5y3

4

+

5

3

−

9

2

−

4

{\color{#c92786}{y^{4}+5y^{3}-9y^{2}-4y}}

y4+5y3−9y2−4y

Solution

4

+

5

3

−

9

2

−

4

3 0
3 years ago
Drew is holding a fund-raiser. He is taking donations from his family members to supports a charity. Each family member donates
larisa86 [58]

They each give $10 because the pattern is changing by 10.

7 0
3 years ago
6(5 + 3x) is equivalent too
Artyom0805 [142]

Answer:

30+18 x

Step-by-step explanation:

5 0
3 years ago
The length of a pool is 3 feet more than twice its width. If the perimeter of the pool is 72 feet, find the dimensions of the po
photoshop1234 [79]
[tex]x-length\\ y-width\\ x=2y+3\\ Perimeter: 2x+2y=72\\\\ System\ of\ equations:\\ \left \{ {{x=2y+3} \atop {2x+2y}} \right. \\ Substituting\ x=2y+3\\ 2(2y+3)+2y=72\\ 4y+6+2y=72\\ 66y=60|:6\\ y=11\\x=2y+3=2*11+3=25[/tex]
8 0
3 years ago
Read 2 more answers
19) Two of the dozen eggs in a carton are cracked. About what percent of the carton is not cracked? (Round to the nearest whole
777dan777 [17]

Answer:

83%%

Step-by-step explanation:

We have that 2/12=1/6 of the eggs are cracked, so 1-1/6=5/6 of the eggs are not cracked.

Recall that 1/6=0.1666666666.... This means that 5/6=1-1/6=1-0.166666666...=0.833333333....

Rounding this to the nearest whole percent gives 83%%.

7 0
3 years ago
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