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sammy [17]
3 years ago
10

Evaluate the expression when a= 2 and c=-4. -a +5c

Mathematics
1 answer:
-Dominant- [34]3 years ago
4 0
The answer would be 18
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Simplify (x - y + 1) - (x + y - 1)
bulgar [2K]
<span>(x - y + 1) - (x + y - 1)

x - y + 1 - x - y + 1

= (x - x) + (y - y) + (1 + 1)

= -2y + 2

In short, Your Answer would be: -2y + 2

Hope this helps!</span>
3 0
3 years ago
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(1 - cos ß)(1 + cos ß) =1/cosec^2(ß)
iVinArrow [24]

Step-by-step explanation:

L.H.S=(1-cosB)(1+cosB)

=(1-cos^2B). {using (a+b) (a-b)=(a^2-b^2)in second step}

=sin^2B

=1/cosec^2B

Therefore,L.H.S=R.H.S proved

5 0
2 years ago
Please help!!! Here is 25 point please helpp
Ket [755]

Answer:

-3

Step-by-step explanation:

6 0
3 years ago
What was done to the quadratic parent function F(x) = x2 to get the
zubka84 [21]

Answer:

Option C.

Step-by-step explanation:

If k<0, the function g(x) = f(x) + k represents the function f(x) shifted k units downwards.

In this case, given that k=-3 (k<0). The graph was shifted 3 units down. Therefore, the correct option is Option C.

5 0
3 years ago
Will mark brainliest (scam links will be reported)
gregori [183]

Answer:

30

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