3 years ago

PLSSS HELPPPP IS DUE TODAYYYYYYYYYYY T-T !!

Mathematics

1 answer:

monitta3 years ago

5 0

Wouldnt it be 117% ???

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I need to find the identity of this equation for pre calc

Rama09 [41]

Expand the left side using the angle sum identity for sine:

sin(x + π/2) = sin(x) cos(π/2) + cos(x) sin(π/2)

cos(π/2) = 0 and sin(π/2) = 1, so the right side reduces to

sin(x + π/2) = cos(x)

as required.

6 0

3 years ago

Factorise 4a^2+b^2-4ab-8a+4b+4

Dima020 [189]

Answer:

The factorized form of the given expression is $4 [(a-1)^2 - b(a - 1 + \frac{b}{4})]$

Step-by-step explanation:

Given;

4a² + b² - 4ab - 8a + 4b + 4

This expression is factorized as follows;

(4a² - 8a + 4) + (b² - 4ab + 4b)

(4a² - 4a - 4a + 4) + b² - 4b(a - 1)

(4a - 4)(a - 1) + b² - 4b(a - 1)

(4a - 4)(a - 1) - 4b(a - 1) + b²

4(a - 1)(a - 1) - 4b(a - 1) + b²

4(a - 1)² - 4b(a - 1 + b/4)

$4(a- 1)^2 - 4b(a - 1 + \frac{b}{4} )\\\\4 [(a-1)^2 - b(a - 1 + \frac{b}{4})]$

6 0

3 years ago

If f(x)=x2+2x+3 what is the value of f(x) when x=6

Marat540 [252]

The answer is 51

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7 0

3 years ago

6% service charge for 200 boxing ticket

baherus [9]

Answer:

Step-by-step explanation:

7 0

2 years ago

Can someone please tell me that answer in simplest form

Bezzdna [24]

The answer in simplest for would be 7/8. What you basically do is multiply 7/10 by the reciprocal of 4/5 and that gives u the answer.

5 0

3 years ago

Read 2 more answers