3 years ago

Evaluating expressions

Mathematics

1 answer:

Dvinal [7]3 years ago

5 0

Answer:

There is no expression to evaluate.

Step-by-step explanation:

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Which of the following expresion is equivalint to 2d(3d-4)

Alex

Answer:

6d^2 - 8d

Step-by-step explanation:

Multiply 2d to the other two monomials

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Which of the following expressions are equivalent to -8/11-3/4-1/4.Choose 3 answers

Effectus [21]

Answer:

option a

option d

option e

Step-by-step explanation:

option a

$-\frac{8}{11}+( -\frac{3}{4})+( -\frac{1}{4})=-\frac{8}{11}-\frac{3}{4} -\frac{1}{4}$

option d

$-(\frac{8}{11}+\frac{3}{4}+\frac{1}{4})=-\frac{8}{11}-\frac{3}{4} -\frac{1}{4}$

option e

$-\frac{8}{11}-(\frac{3}{4}+\frac{1}{4})=-\frac{8}{11}-\frac{3}{4} -\frac{1}{4}$

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3 years ago

Find the value of n. 4 × 62 = (4 x n) + (4 × 2)

tino4ka555 [31]

The answer is 1000 because 62x4= 248 and then you take 248 and multiply it by 4 and you get 992 then you have to multiply 4x2 which is 8 and then when you add 992+8, you would get 100 ;)

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3 years ago

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Which will result in a difference of squares?

oksian1 [2.3K]

Answer:

Step-by-step explanation:

The correct answer is C, love from Gauthmath

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Prove that<br> cos^4∆ - sin^4∆ = 2cos^2∆ - 1

GarryVolchara [31]

$\cos^{4} x-\sin^{4} x\\\\=(\cos^{2} x+\sin^{2} x)(\cos^{2} x-\sin^{2} x)\\\\=\cos^{2} x-\sin^{2} x\\\\=\cos^{2} x-(1-\cos^{2} x)\\\\=2\cos^{2} x-1$

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