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givi [52]
3 years ago
5

If tan x is equal to 3/4 find the value of sin x + cos x/ cos x (1 - cos x) ​

Mathematics
1 answer:
Flauer [41]3 years ago
6 0

Answer:

35/4 =8¾

Step-by-step explanation:

using pythagoras theorem

hyp²=opp²+adj²

recall that tanX= opp/adj

taking our opposite side to be 3 and the adjacent side to be 4 , the hyp² = 3²+4²

hypotenuse = 5

recall also that , sinX = opposite /hypotenuse

= 3/5

CosX= adjacent /hypotenuse

=4/5

so we've known tanx = 3/4 cosX = 4/5 sinx= 3/5

substitute these values into your equation

it will give us 3/5 + 4/5 divided by 4/5 ×(1-4/5)

=35/4 = 8¾

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-2/3 minus (-4/6)= <br>​
lina2011 [118]

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-  \frac{2}{3}  - ( -  \frac{4}{6} ) =  \\

-  \frac{2}{3}  +  \frac{4}{6}  =  \\

-  \frac{2}{3}  +  \frac{2 \times 2}{2 \times 3}  =  \\

-  \frac{2}{3}   +  \frac{2}{3}  =  0\\

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8 0
3 years ago
Which of the following is INCORRECT? *
DedPeter [7]

this option is incorrect

A straight angle is one full revolution.

Step-by-step explanation:

Straight angle = 180°

Angle take 360° in one revolution

6 0
2 years ago
Aquelyn’s earning m are a function of the number of lawns n she mows at a rate of $12 per lawn
nekit [7.7K]

Answer:

m = 12n

Step-by-step explanation:

M is the amount that she would earn at the end of the day. She charges 12 dollars per lawn and then you multiply that by n which is going to be how many lawns she mowed.

4 0
2 years ago
Can someone help please
Pepsi [2]

Answer:

A: 5

B: 6

C: 3x^2 - 2x

D: 8

E: 22

Step-by-step explanation:

A: (-1)^2 + 4 = 5

B: (-4)^2 +4 = 16

2 x (-3) -4 = -10,

16-10=6

C: 3(x^2 + 4) = 3x^2 + 12

3x^2 + 12 -2x -4, simplify

3x^2 - 2x

D: g(3) = 2*3 -4 = 2

f(2) = 2^2 +4 = 8

E:  f(3) = 3^2 + 4 = 13

g(13) = 2*13 - 4 = 22

6 0
3 years ago
Which is the area of a circle with a radius of 5 units? (use 3.14 for )?
Sauron [17]
The area of a circle is A=πr². 
Since π is about 3.14 we can substitute that into the equation.
So A=3.14×r²
We can substitute the given radius for r.
A= 3.14 × 5²
When a number is squared, or has the two over it, we multiply it by itself. 
5 × 5= 25
A= 3.14 × 25
Simplify this and the area of the circle is about 78.5
A≈78.5
6 0
2 years ago
Read 2 more answers
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