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3 years ago

Who wants 60 free points

Mathematics

2 answers:

Oksanka [162]3 years ago

7 0

Answer:

Sure

Step-by-step explanation:

alex41 [277]3 years ago

7 0

Yes pleaseeeeeeeeeeee

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Anyone help me please

andrew11 [14]

Solution,

As we have,

⇒2SinACosB=Sin(A+B)+Sin(A-B)

Now,

$2sin7\alpha .cos2\alpha =sin9\alpha +sin5\alpha \\\\LHS=2sin7\alpha .cos2\alpha \\\\LHS=sin(7\alpha +2\alpha )+sin (7\alpha -2\alpha )\\\\LHS=sin9\alpha +sin5\alpha$

Hence, LHS=RHS

4 0

2 years ago

5, 3 = 28 7,6 = 55 4,5 = 21 3,8 = ?

olga nikolaevna [1]

Answer:

3,8 =

Step-by-step explanation:

3 X 3 + 8 = 9 + 8 = 17

Square the first number and add the second number to it.

3 0

3 years ago

Which triangles are similar to triangle FDG? Help me asap

Olenka [21]

Answer:

ECB

Step-by-step explanation:

they are both similar

7 0

3 years ago

Read 2 more answers

A sum of $9, 000 paid into a bank account for two months (61 days) to attract simple interest will produce $9, 020 at the and of

Juliette [100K]

Answer:

Rate of interest will be 1.33 %

Return on this investment = $=\frac{9020-9000}{9000}=0.222$ %

Step-by-step explanation:

We have given principle amount P = $9000

Time = 61 days = $\frac{61}{365}=0.167\ years$

We have to find the rate of interest

Total amount produce at the end of term = $9020

So interest = $9020 - $9000 = $20

We know that simple interest $=\frac{principle\ amount\times rate\times\ time}{100}$

$20=\frac{9000\times rate\times\\ 0.167}{100}$

$rate=1.33$ %

Return on this investment = $=\frac{9020-9000}{9000}=0.222$ %

6 0

4 years ago

Solve the equation. 5t^3 +40t^2 = -80t

Gnesinka [82]

Answer:

-5t2 + 40t - 3

Step-by-step explanation:

Step-1 : Multiply the coefficient of the first term by the constant 5 • 3 = 15

Step-2 : Find two factors of 15 whose sum equals the coefficient of the middle term, which is -40 .

-15 + -1 = -16

-5 + -3 = -8

-3 + -5 = -8

-1 + -15 = -16

1 + 15 = 16

3 + 5 = 8

5 + 3 = 8

15 + 1 = 16

5 0

3 years ago