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3 years ago

PLSSSS HELP END OF GRADING PERIOD IS TODAY

Mathematics

1 answer:

VMariaS [17]3 years ago

4 0

Answer:

18,750

Step-by-step explanation:

If you add up all of the expenses you get 18,750. I hope this helps!

Do you give brainliest?

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Please help me, I will give you brainliest if it's right! <3 :)

stepladder [879]

Answer:

-18

Step-by-step explanation:

-18

4 0

2 years ago

Chloe has $15 to spend on pencils. Each box of pencils costs $2. How many

Scorpion4ik [409]

Chloe can buy 7 pencil boxes and have 1 dollar left

3 0

3 years ago

Score Number of Students

Radda [10]

Answer:

mean is 75

Step-by-step explanation:

8 0

2 years ago

What is the product of 1/3 and 4/7?

Travka [436]

Answer:

4/21

Step-by-step explanation:

Multiply 1 and 4. Then multiply 3 and 7. So 1x4=4, and 3x7=21. Therefore, the answer is 4/21. In multiplying fractions, you just multiply straight across (: (Hope this helps)

7 0

2 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=9%5C%3A%20%20%5C%3A%20%20%5Cfrac%7B%20%5Csin%28%20%5Ctheta%29%20%7D%7B1%20%2B%20%20%5Ccos%28%2

PIT_PIT [208]

Option (b) is your correct answer.

Step-by-step explanation:

$\large\underline{\sf{Solution-}}$

Given Trigonometric expression is

$\rm :\longmapsto\:\dfrac{sin\theta }{1 + cos\theta }$

So, on rationalizing the denominator, we get

$\rm \: = \: \dfrac{sin\theta }{1 + cos\theta } \times \dfrac{1 - cos\theta }{1 - cos\theta }$

We know,

$\purple{\rm :\longmapsto\:\boxed{\tt{ (x + y)(x - y) = {x}^{2} - {y}^{2} \: }}}$

So, using this, we get

$\rm \: = \: \dfrac{sin\theta (1 - cos\theta )}{1 - {cos}^{2}\theta }$

We know,

$\purple{\rm :\longmapsto\:\boxed{\tt{ {sin}^{2}x + {cos}^{2}x = 1}}}$

So, using this identity, we get

$\rm \: = \: \dfrac{sin\theta (1 - cos\theta )}{{sin}^{2}\theta }$

$\rm \: = \: \dfrac{1 - cos\theta }{sin\theta }$

<u>Hence, </u>

$\\ \red{\rm\implies \:\boxed{\tt{ \rm \:\dfrac{sin\theta }{1 + cos\theta } = \: \dfrac{1 - cos\theta }{sin\theta } }}} \\$

3 0

2 years ago

Read 2 more answers