I need some help with this math question

Mathematics

1 answer:

Vilka [71]3 years ago

6 0

The answer is 63 cm bc 30 60 90 triangles have a rule where the short leg is x longer is x√3 and the hypotenuse is x2
you can see this if you imagine the triangle as equilateral then cutting it in half

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The perimeter (adding up all the sides) of a rectangular

OverLord2011 [107]

Answer:

x = 8

length is 12 meters

width is 9 meters

Step-by-step explanation:

P = 2l + 2w

where l is the length and w is the width.

(There are two sides with the same length, and two sides with the same width.)

Let l = x + 4 and w = 2x - 7

so 2(x+4) + 2(2x-7) = 42

Distribute the 2s

2x + 8 + 4x - 14 = 42

Combine like terms

2x + 4x + 8 - 14 = 42

Group

6x - 6 = 42

Add 6 to both sides

6x = 48

Divide 6 on both sides

x = 8

Plug back in

l = 8 + 4 = 12 meters

and w = 2(8) - 7 = 16 - 7 = 9 meters

Double-check: 2 * 12 + 2 * 9 = 24 + 18 = 42

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3 years ago

What is an alternate interior angle

steposvetlana [31]

Step-by-step explanation:

Alternate interior angles are non-adjacent interior angles that do not have a common vertex on alternate sides of the transversal. These types of angles have the same measure.

3 0

3 years ago

Read 2 more answers

1) The table shows the cost for one year of college. Suppose you have $6,000 in grants and scholarships to attend your first yea

Tanzania [10]

Answer:

1) C 2)B

Step-by-step explanation:

1) Grants and scholarships= $6000

By the Given table

Total of tuition fee, room and board for year = $18,391

Tuition fee you have to pay after grants and scholarships for year = 18391 - 6000