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3 years ago

Please help!! Select all the triangles that have an area of 8 square units in the picture. Explain how you know please?

Mathematics

1 answer:

Soloha48 [4]3 years ago

5 0

Answer: A,B,D,E

Step-by-step explanation: All of them either have a base and height of 4, or if its E, it is 8 by2. The formula for solving a triangle is base x height divided by 2. In this case, the two sides have to equal 16, as the area is 16/2, or 8

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14d + 21 and 7(2d + 3)

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Answer:

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Step-by-step explanation:

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3 years ago

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Find the area of a rectangle that has the length of 2x-3 and the width of x .Someone painted an interior area of the rectangle a

Svet_ta [14]

Answer:

The area that was not painted is $(2x^{2}-6x+6)\ units^{2}$

Step-by-step explanation:

step 1

Find the area of the rectangle

we know that

The area of a rectangle is equal to

$A=LW$

In this problem we have

$L=2x-3$

$W=x$

substitute

$A=(2x-3)x\\A=(2x^{2}-3x)\ units^{2}$

step 2

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$A=(3)(x-2)\\A=(3x-6)\ units^{2}$

step 3

Find the area that was not painted

Subtract the area that was painted from the total area of rectangle

$A=(2x^{2}-3x)-(3x-6)=(2x^{2}-6x+6)\ units^{2}$

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3 years ago

What is 2.54 centimeters are in 1 inch, how many centimeters are in 4 inches?

olga2289 [7]

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Step-by-step explanation:

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3 years ago

Joe decides to take his six year old son to the planetarium. The price for the child's ticket is 5.75 dollars less than the pric

mart [117]

To answer this item, we are instructed that the price of the ticket for the children is equal to x. Since, we are also given that this is 5.75 less than the price of tickets for the adults, we may express this as follows,

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The answer is the third choice.

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ICE Princess25 [194]

Answer:

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Step-by-step explanation:

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2 years ago