3 years ago

Which of the following requires a proof?

Mathematics

1 answer:

marshall27 [118]3 years ago

3 0

A theorem requires a proof.

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9x 7=29. is 9 a solution to the problem?

Masteriza [31]

No it is impossible because 9x7=63

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3 years ago

If B is the midpoint of AC, and AC= 8x-20, find BC.

Semmy [17]

Answer:

BC = 4x-10

Step-by-step explanation:

$\because B$ is the midpoint of AC.

$\therefore BC = \frac{1}{2} AC$

$\therefore BC = \frac{1}{2} (8x-20)$

$\therefore BC = \frac{1}{2} \times 2(4x-10)$

$\huge \purple {\boxed {\therefore BC = 4x-10}}$

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2 years ago

Answer the geometry question in the pic and save my life...

Anastasy [175]

Answer:

The answer should be A'(-9,3) B'(12,-6)

Step-by-step explanation:

If you dialate, you multiply every coordinate by 3. -3 x 3= -9. 1 x 3=3. 4 x 3= 12. -2 x 3= -6. So, the last option is correct.

3 0

3 years ago

Henry's patio is in the shape of a rectangle. He said the perimeter of the patio is 48 feet . He knows that one side is 9 feet w

ss7ja [257]

Answer:

2 sides of the patio are 9ft and another 2 sides are 15ft

Step-by-step explanation:

To solve this problem we have to know thata rectangle has 4 sides and 2 of them are equal to each other

This is the formula to calculate perimeter

p = perimeter 48 ft

a = side a = 9 ft

b = side b

p = 2a + 2b

we replace the known values

48ft = 2*9ft + 2b

48ft = 18ft + 2b

48ft - 18ft = 2b

30 / 2 = b

15 = b

2 sides of the patio are 9ft and another 2 sides are 15ft

8 0

2 years ago

A bird feeder holds 2?3 cup of birdseed. If the bird feeder is filled with a scoop that holds 1?6 cup, how many scoops of birdse

alex41 [277]

Answer:

4 scoops

Step-by-step explanation:

2/3 ÷ 1/6 = 4

7 0

3 years ago