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k0ka [10]
3 years ago
6

Pls serious help asap asap pls !

Mathematics
1 answer:
Hunter-Best [27]3 years ago
5 0

Answer: option B is correct

Step-by-step explanation:

The formula for determining the area of cross section of a trapezoid is expressed as

Area = 1/2(a + b)h

Where

a and b are the length of The bases are the 2 sides of the trapezoid which are parallel with one another.

h represents the height of the trapezoid.

From the information given,

a = h1 = 11 inches

b = h2 = 15 inches

If It has an area of 52 inches² , then

52 = 1/2(11 + 15)h

Cross multiplying by 2, it becomes

52 × 2 = (11 + 15)h

104 = 26h

h = 104/26 = 4 inches

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3 years ago
SOMEBODY HELP ME OUT !!
Naddika [18.5K]

Answer:

D

Step-by-step explanation:

Under a clockwise rotation about the origin of 90°

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6 0
2 years ago
a certain triangle has a perimeter of 3067 mi. the shortest side measures 71 mi less than the middle side and the longest side m
UkoKoshka [18]

Answer:

The measure of the shortest side is 851 miles

Step-by-step explanation:

Let

x ----> the measure of the shortest side

y ---> the measure of the middle side

z ---> the measure of the longest side

we know that

The perimeter of triangle is equal to

P=x+y+z

P=3,067\ mi

so

3,067=x+y+z ----> equation A

the shortest side measures 71 mi less than the middle side

so

x=y-71 ----> equation B

the longest side measures 372 mi more the the middle side

so

z=y+372 ----> equation C

substitute equation B and equation C in equation A

3,067=(y-71)+y+(y+372)

solve for y

3,067=3y+301\\3y=2,766\\y=922

Find the value of x

x=y-71\\x=922-71\\x=851

therefore

The measure of the shortest side is 851 miles

6 0
3 years ago
PART A:
elixir [45]
A and C are complementary 
B is supplementary 
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vekshin1

Answer:

B

Step-by-step explanation:

that way when surveying everyone she’ll know the exact number

6 0
3 years ago
Read 2 more answers
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