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2 years ago

X-y=12 x+y=3 what is x and y and i need to show work ty

Mathematics

1 answer:

Bogdan [553]2 years ago

7 0

Answer:

x=12 y=9

Step-by-step explanation:

first we need to do this equation to get X

we don't have y so y=0

x-(0)=12

we eliminate the 0

x=12

now, we have X, now we need to find Y

substitution

x+y=3

12+y=3

y=3-12

y= 9

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Circle A has a radius of 9.0 cm. The shortest distance between B and C on the circle is 8.5 cm. What is the approximate area of

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Answer:

38.25 cm²

Step-by-step explanation:

We use the formula for the length of an arc to find the central angle of the sector of the circle.

Then we use the formula for the area of a sector of a circle to find the area.

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2 years ago

What percent of 50 is 85

Leno4ka [110]

Answer:

85% of 50 is 42.5

Step-by-step explanation:

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2 years ago

Read 2 more answers

10 > X - 3.<br> Help please

amm1812

Answer:

x<13

Step-by-step explanation:

1. Move variable [x] to left-hand side and change its sign

Move constant [10] to the right-hand side and change its sign

10>x-3

-x+10>-3-10

2. Calculate the difference [-3-10]

-x>-3-10

-x>-13

3. Change the signs [-x>-13] on both sides of the inequality and flip the inequality sign

x<13

4. Solution

x<13

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3 years ago

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The graph of a quadratic function having the form f(x) = ax? + bx + c passes

insens350 [35]

Answer:

f(-3) = -20

Step-by-step explanation:

We observe that the given x-values are 3 units apart, and that the x-value we're concerned with is also 3 units from the first of those given. So, a simple way to work this is to consider the sequence for x = 6, 3, 0, -3. The corresponding sequence of f(x) values is ...

34, 10, -8, ?

The first differences of these numbers are ...

10 -34 = -24

-8 -10 = -18

And the second difference is ...

-18 -(-24) = 6

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? -(-8) = -18 +6

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_____

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3 years ago