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densk [106]
3 years ago
8

(05.03) caculate the area of the rectangular pentagon below:

Mathematics
1 answer:
gregori [183]3 years ago
3 0
<span>238.95 is the answer :)))</span>
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NEED HELP!! Trigonometry questions
anzhelika [568]

Answer:

Step-by-step explanation:

Question 1:  Assumption: This is a 30-60-90 triangle.

Remember that the sides of a 30-60-90 triangle are in the ratio 1:√3:2

The side opposite the 90° angle is 16, so the side opposite the 30° angle is 16/2 =  8

x = 8 units.

:::::

Question 2:  Assumption: This is an isosceles triangle.

Draw the altitude to the vertex angle and you get a 30-60-90 triangle.

The side opposite the 90° angle has length 22, so the side opposite the 30° angle has length 11.

x/2 = 11

x = 22 units

:::::

Question 3:  Assumption: This is a 45-45-90 triangle.

The sides of a 45-45-90 triangle are in the ratio 1:1:√2

The sides opposite the 45° angles are 19 and x.

x = 19

:::::

Question 4:  Assumption: This is an isosceles triangle.

x = 13 units

:::::

Question 5:  Assumption: This is a right triangle.

sin(54°) = x/45

x = 45sin(54°) ≅ 36.4 units

:::::

Question 6:  Assumption: This is a right triangle.

sin(35°) = z/23

z = 23sin(35°) ≅ 13.2 units

4 0
3 years ago
Pls help me with my homework pls
Setler [38]

Answer:

12

Step-by-step explanation:

Pythagoras says:

b² + 35² = 37²

so

b² =  37² -  35²

b = √144 = 12

7 0
4 years ago
Anita sees in her nutrition book that a 7.5-ounce cake has 900 calories how many calories will she save if only takes 2.5-ounce
lbvjy [14]
You can set up a proportion. The quick answer is 600

7.5/900 = 2.5/x
x = 900 * 2.5 / 7.5
x = 900 * (1/3)
x = 300

But that is not the answer. The question is what does she save.
900 - 300 = 600

You could get the answer more directly. She does not eat 5 oz cake, so solve for that.

5/x = 7.5/900 Cross multiply
5 * 900 = 7.5 x
4500 = 7.5x Divide by 7.5
4500/7.5 = x 
600 = x

 
8 0
4 years ago
গ. মুক্তিযােদ্ধাদের আক্রমণে পাকিস্তানিদের কয়টি স্পিডবােট ডুবে গিয়েছিল?
Ad libitum [116K]

Answer:

3)7

Step-by-step explanation:

3 0
3 years ago
PLEASE HELP IF YOU KNOW GEOMETRY THIS SHOULD BE EASY
goblinko [34]

Answer:

Growth

Step-by-step explanation:

When x value increase, y value also increase, So growth.

When x = 1   ;f(1) = 2

When x = 2  ; f(2) = 2² = 4

When x = 3  ; f(3) = 2³ = 8

6 0
3 years ago
Read 2 more answers
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