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3 years ago

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]

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Step-by-step explanation:

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3 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

$P=x+y+z$

$P=3,067\ mi$

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

the shortest side measures 71 mi less than the middle side

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

the longest side measures 372 mi more the the middle side

$z=y+372$ ----> 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

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3 years ago

PART A:

elixir [45]

A and C are complementary
B is supplementary

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Answer:

Step-by-step explanation:

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3 years ago

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