Brainliest* and show work and the answer to number 15

Mathematics

1 answer:

barxatty [35]2 years ago

4 0

Step-by-step explanation:

perimeter of semicircle=πr+2r

$\frac{22}{7} \times 1 + 2 \: \: \: \: \: \: \: (d = 2r) \: \\ \\ 5.14ft \: \: \: \: \: \: \: \:$

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Please help what is the equation

Elanso [62]

let us take any two points here (5,20) and (7,30)

now let us use slope formula to get its slope

$slope=\frac{y2-y1}{x2-x1}$

$slope=\frac{30-20}{7-5}$

slope =5

now let us use one coordinate (say (5,20)) and slope to get the y intercept

20= 5*5 +b

b=-5

plugging the values of b and m in the given equation we get

y=5x-5

or c=5m-5

7 0

4 years ago

Suppose your local school district decides to randomly test high school students for attention deficit disorder (ADD). There are

REY [17]

Answer:

Option C is correct. Option f is the same as option C

Step-by-step explanation:

From the question, There are three high schools in the district, each with grades between nine to twelve. The school board decided to pool all of the students together and randomly samples 250 students in the whole district that has schools between the grade of nine to twelve.

In order to test for high school students in the district for Attention Deficit disorder(ADD), they could have chosen any 250 students from any school with grades betweem nine to twelve throughout the district.

4 0

4 years ago

Jerry planted a pine tree that was 5 feet tall and a maple tree that was 10 feet tall. The pine tree grew 3 feet taller per year

stich3 [128]

The initial length of the pine tree=5 feet.

Groth rate of pine tree =3 feet/year.

The initial length of the pine tree =10 feet.

Groth rate of the maple tree =2 feet/year.

After x years, the height of the pine tree= 5+3x feet and

after x years, the height of the maple tree= 10+2x feet.

The inequality for which, after x year, the pine tree is taller than the maple tree is

$5+3x>10+2x$