3 years ago

Is the ordered pair (-3, 16) a solution for y=-3x + 7?

Mathematics

1 answer:

8_murik_8 [283]3 years ago

4 0

Answer: Yes

Step-by-step explanation:

(-3, 16) split into place would give you 16= -3-3 + 7. A negative times a negative is always a positive number so, -3 x -3 = 9, 9+7=16

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2x + y = 2 -3x + y = 4 Transfer these into y=mx+b

dimaraw [331]

Step-by-step explanation:

2x + y = 2 subtract 2x from both sides

2x - 2x + y = 2 - 2x

y = -2x + 2

(m = -2, b = 2)

-3x + y = 4 add 3x to both sides

-3x + 3x + y = 4 + 3x

y = 3x + 4

(m = 3, b = 4)

7 0

4 years ago

Find the area of the circle with a circumstance of 6.28 units

Aleksandr [31]

Answer:

3.14 i think

Step-by-step explanation:

formula (with already known circumfrence)

6.28 squared divided by 4 times pi

6.28 x 6.28 = 39.4384

3.14 x 4= 12.56

39.4384/ 12.56= 3.14

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3 years ago

6 9/10 - (1 1/3 + 2 1/2)

kirill115 [55]

Answer:

3 1/15

Step-by-step explanation:

6 0

3 years ago

Let A = {x. y} B = {1, 2, 3} Find A X B and B X B

Whitepunk [10]

Answer:

Are the following:

Step-by-step explanation:

AXB are all the possible pairs (a,b) where a is in A and b is in B. Then

AXB = {(x,1), (x,2), (x,3), (y,1), (y,2), (y,3)}.

Now, BXB are all the possible pairs (a,b) where a and b are in B. Then

BXB = {(1,1) (1,2), (1,3), (2,2), (2,1), (2,3), (3,1), (3,2), (3,3)}.

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3 years ago

In the figure x:y=2:3 and y:z=3:5 if x=10 find the value of z a.15 b.20 c.25 d.30

masha68 [24]

The answer is b 20
because the ratio of both is 1:2
and then x =10 then z=20

brainliest and follow please

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3 years ago