These is the numbers 16-21

Mathematics

2 answers:

pav-90 [236]3 years ago

7 0

Answer:

question 16:y=3 question 17:B, or -3x^2-2x+1

Step-by-step explanation:

For question 16, all you have to do is graph it. sorry if i am a bit vague here, but trust me, it is y=3

For question 17, you have to look at the first number, or a, and if it is negative, it opens down, and if it is positive, it opens up.

Nataly [62]3 years ago

5 0

Answer:

16. D

17. B

I'm not sure about the other ones sorry

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Crazy boy [7]

Answer:

Step-by-step explanation:

How do you know if side lengths form a Pythagorean triple?

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3 0

3 years ago

Plz help and explain

vovikov84 [41]

To solve this problem, we need to first find the dimensions of the side of the blue and purple squares.

We're given that the purple (smaller) square has a side length of x inches.
We are also given that the blue band has a width of 5 inches.
Since the blue band surrounds the purple square on both sides, the length of the blue square is x+2(5)=x+10 inches.

The net area of the band is therefore the difference of the area of the blue square and the purple square, namely take out the area of the purple square from the blue.

Therefore
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$=20x+100$ or 20(x+5) if you wish.

8 0

3 years ago

The velocity-time graph for a cycle is shown

malfutka [58]

Answer:

a) 100m

b) 2m/s

Step-by-step explanation:

a)==>> 2+4+6+8+10(8) = 100m

b)==>> Variable "a" = change OVER time ( $\frac{change}{time}$ ) = 8m/4s = 2m/s