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DochEvi [55]
3 years ago
8

If tan x=.67, and cos x=.83, what is sin x

Mathematics
1 answer:
Alexxandr [17]3 years ago
7 0

Answer:

0.56

Step-by-step explanation:

                                  sin x

tan x is defined as -------------

                                  cos x

and we can solve this for sin x:  sin x = (cos x)(tan x)

which here is:  sin x = 0.83(0.67) = 0.56 (rounded up from 0.5561)

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A circle's circumference is approximately 44 cm.
Sav [38]
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these are all approximate

======================================

Explanation:

C = pi*d is the formula for the circumference. We know that C = 44 approximately, so,

C = pi*d

d = C/pi

d = 44/3.14

d = 14.01 approximately

d = 14 also approximate

take half of this to get the radius

r = d/2 = 14/2 = 7

Then use this radius to find the circle's area

A = pi*r^2

A = 3.14*7^2

A = 153.86

A = 154  rounding to the nearest whole number

7 0
3 years ago
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Pavlova-9 [17]

Answer:

x = 1, x = -1

Step-by-step explanation:

-4x² = -4

x² = 1

x = \sqrt{1}

x = ±1

3 0
3 years ago
Kristin spent $131 on shirts. Fancy shirts cost $28 and plain shirts cost $15. If she bought a total of 7 shirts, then how many
GenaCL600 [577]

Answer:

Kristin bought 5 fancy shirts and 2 plain

5 0
3 years ago
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During a baseball game, a food stand sells popcorn for $2.50 and hotdogs for $3 each. If at the end of the game, the stand made
nasty-shy [4]
Let
x-------> bags of <span>popcorn
</span>y-------> bags of hotdogs

we know that
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y=25
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25 bags of hotdogs<span />
5 0
3 years ago
Please help please help me out
Lapatulllka [165]
Actually it’s 42 cuz they are equal
3 0
3 years ago
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