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3 years ago

What’s the answer to this ?

Mathematics

1 answer:

Deffense [45]3 years ago

5 0

Answer:

The marked answer is the correct one

Step-by-step explanation:

The x-coordinate of C moves from -4 to 4, a distance of 8 units to the right.

The y-coordinate of C moves from 8 to -8, a distance of 16 units down.

The only description that has this motion correctly described is the last one.

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A circle has center

Fed [463]

Note that the equation of the circle is

(x-h)² +(y-k)² =r²

where centre is (h,k)

the equation of the circle based on the information given

(x-3)² +(y-4)² =r²
and the point on the circle (3,-2)

substitute into the equation

(3-3)² +(-2-4)² =r²

r=6 or r=-6

since r is radius, we reject r=-6 since radius must be nonnegative.

the radius is 6

5 0

1 year ago

How many of the first 15 positive integers can be written as the sum of three squares?

Jlenok [28]

Answer

no number from the following list can be expressed as the sum of three squares: 7, 15, 23, 31, 39, 47, ect... so only once

Step-by-step explanation:

nono dont touch me there this is my nono square

3 0

2 years ago

Help! Urgent request

TiliK225 [7]

Answer: 6 students

What we know:

Students: 24

Students who play checkers: $\frac{2}{3}$

Students who also play sudoku: $\frac{3}{8}$ of the $\frac{2}{3}$

24 ÷ 3 = 8, so 8 × 2 = 16 (students who play checkers)

$\frac{3}{8}$ × 2 = $\frac{6}{16}$

So the answer is,

6 students play both checkers and sudoku

8 0

3 years ago

Read 2 more answers

Miguel is going for a walk. he takes 3 hours to walk 7.5 miles. what is his speed?

daser333 [38]

We have a ratio of 3 hours / 7.5 miles
We want to know how many miles he can walk in 1 hour so, divide both sides by 3 -> 1 hour / 2.5 miles
He is walking at 2.5 mph

7 0

3 years ago

Read 2 more answers

7 less than three times m is n

Deffense [45]

If it's 4 less than 2 times a number if would be
2x - 4

4 0

2 years ago

Read 2 more answers