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3 years ago

I NEED HELP ASAP!!!!!

Mathematics

1 answer:

lord [1]3 years ago

8 0

Answer:

Graph and solutions attached

Step-by-step explanation:

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Which statement must be true?

Alika [10]

<span>A. A statement cannot become a theorem until it is proven</span>

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3 years ago

Help me please will mark you as brainliest

GalinKa [24]

B because it is moved but doesn’t change size

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3 years ago

The endpoints of a diameter of a circle are A(3,1) and B(9,9). Find the area of the circle in terms of pie

andrey2020 [161]

Answer:

The answer is $25\pi$ units squared.

Step-by-step explanation:

If we find the diameter, we can find the radius by halving the diameter.

We can find the diameter by using the endpoints of the diameter.

The distance formula will give us the length between (3,1) and (9,9).

The distance formula is $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$ .

The distance between the $x$ 's is 9-3=6.

The distance between the $y$ 's is 9-1=8.

The distance between the points is given by $\sqrt{6^2+8^2}=\sqrt{36+64}=\sqrt{100}=10$ .

The radius is therefore $\frac{10}{2}=5$ .

We are asked to find the area of this circle.

The formula for finding the area of a circle is $\pi r^2$ .

Since the radius is $5$ , then the area in terms of $\pi$ ,(pi), is $\pi (5)^2=\pi (25)$ .

The answer is $25\pi$ units squared.

4 0

3 years ago

Which is equivalent to a + (-a)? A. 2a B. – 2a C. 1 D. -1 E. 0

Darya [45]

Answer:

Step-by-step explanation:

Simplify the following:

a - a

Hint: | Look for the difference of two identical terms.

a - a = 0:

Answer: 0

8 0

3 years ago

22 Evaluate the expression for x = 2

jekas [21]

Answer:

22. 18

23. 10

Step-by-step explanation:

you plug the number for the variable into the equation (3(2)²+6
order of operations say exponents first so you do 2²=4 so you have 3(4)+6
then you multiple 3•4=12 so 12+6
finally you add 12+6=18

plug in the number for the variable so 5–(-5)
so a negative and a minus will make it addition (negative + negative = positive)
do it is 5+5 which equals 10

4 0

3 years ago