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Margarita [4]
3 years ago
9

40 points: how do u calculate this and what is sin, cos and what is the formula

Mathematics
1 answer:
dlinn [17]3 years ago
3 0

Answer:

B.

Step-by-step explanation:

sin∅ = opposite side over hypotenuse

cos∅ = adjacent side over hypotenuse

To find <em>x</em>, there are multiple ways:

tan72° = 6/x

x = 6/tan72°

cos72° = x/15

15cos72° = x

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50+x(greater than or equal to)300
nikdorinn [45]

Answer:

x ≥ 250

Step-by-step explanation:

Note that "greater than or equal to" looks like ≥

50 + x ≥ 300

Isolate the variable. What you do to one side, you do to the other. Subtract 50 from both sides.

x + 50 (-50) ≥ 300 (-50)

x ≥ 300 - 50

x ≥ 250

x ≥ 250 is your answer.

~

4 0
3 years ago
Almond trees yield 12 pounds per acre and macadamia nut trees yield 8 pounds per acre. Suppose Pippa's farm has a acres of almon
Thepotemich [5.8K]

The answer is C. 12a + 8m = 250

3 0
3 years ago
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The 2 pentagons above are similar. What is the area of the smaller pentagon? 3.5/14 =1/4
Liono4ka [1.6K]

Answer:

A = 4 in²

Step-by-step explanation:

Given 2 similar figures with sides in ratio a : b , then

ratio of areas = a² : b²

here ratio of sides = 3.5 : 14 = 1 : 4 , then

ratio of areas = 1² : 4² = 1 : 16

That is the area of the larger pentagon is 16 times the area of smaller , so

area of smaller A = 64 ÷ 16 = 4 in²

4 0
3 years ago
I need help on this :( I forgot how to do it and I need just an answer no work is needed :p
irinina [24]

Answer:

45

Step-by-step explanation:

63/7 is 9

72/8 is 9

5x9 is 45

3 0
3 years ago
I don’t know please help me is for Monday to
fiasKO [112]

He can walk <u>1.6 kilometers in one hour</u> going at a constant speed of 400 meters every 15 minutes.

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3 years ago
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