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max2010maxim [7]
2 years ago
5

The average height of Susan's 8th grade class is 56 Inches. However, the height of any student in the class can vary by up to 4

Inches
from the average. Which Inequality shows all thepossible heights (h) for any given student in the class?

Mathematics
1 answer:
IgorLugansk [536]2 years ago
6 0

Answer:|h-56|<4 Answer C

Step-by-step explanation:

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What postulate or theorem proves the two triangles are similar?
11111nata11111 [884]

Answer:

sss therom

Step-by-step explanation:

they are congruent on all sides

8 0
3 years ago
A square napkin is folded in half on the diagonal and placed on the diameter of a round plate (see diagram below). If the folded
Crank

Answer:

A=81(\pi-1)\ in^2

Step-by-step explanation:

step 1

Find the area of the plate

The area of a circle is given by the formula

A=\pi r^{2}

we have

r=18/2=9\ in ---> the radius is half the diameter

substitute

A=\pi (9)^{2}\\A=81\pi\ in^2

step 2

Find the area of the square napkin folded (is a half of the area of the square napkin)

we know that

The diagonal of the square is the same that the diameter of the plate

Applying Pythagorean theorem

D^2=2b^2

where

b is the length side of the square

we have

D=18\ in

substitute

18^2=2b^2

solve for b^2

b^2=162\ in^2 -----> is the area of the square

Divide by 2

162/2=81\ in^2

step 3

Find the area of the space on the plate that is NOT covered by the napkin

we know that

The  area of the space on the plate that is NOT covered by the napkin, is equal to subtract the area of the square napkin folded (is a half of the area of the square napkin) from the area of the plate

so

A=(81\pi-81)\ in^2

simplify

A=81(\pi-1)\ in^2

8 0
3 years ago
Factor the expression using the GCF 21+15
Svet_ta [14]

Answer:

3(7+5)

Step-by-step explanation:

21+15

Each term is divisible by 3

3*7 +3*5

3(7+5)

6 0
3 years ago
A delivery person uses a service elevator to bring boxes of books up to an office. The delivery person weighs 180 lb and each bo
s344n2d4d5 [400]
It would be 12 boxes
3 0
3 years ago
1/2 Of the class has blonde hair and 1/4 the class has black hair.1/4 of the class has brown hair If there are 32 kids in the cl
Mariulka [41]

Answer:

Step-by-step explanation:

so there is 32 kids....1/2 are blonde, 1/4 have black hair, 1/4 have brown hair

1/2(32) = 32/2 = 16 are blonde

1/4(32) = 32/4 = 8 have black hair

1/4(32) = 32/4 = 8 have brown hair

6 0
3 years ago
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