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3 years ago

Simplify :5x^3•x^3•2x^2

Mathematics

1 answer:

Mademuasel [1]3 years ago

7 0

Answer:

40 X 6

Step-by-step explanation:

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If -12-4(-2x)= 4 then what is x?

11111nata11111 [884]

Answer:

$\boxed{\boxed{\sf x=2}}$

Step-by-step explanation:

$\sf -12-4\left(-2x\right)=\:4$

First, let's remove parentheses:

$\sf -12-4\times -2x=4$

Simplify, multiply, 4 * -2x = -8x:

$\sf -12-(-8x)=4$

** Apply rule: - ( -a )= a

$\sf 12+8x=4$

Now, let's regroup terms

$\sf 8x-12=4$

Add 12 to both sides:

$\sf -12+8x+12=4+12$

Simplify, 4 + 12= 16

$\sf 8x=16$

Divide both sides by 8:

$\sf \cfrac{8x}{8}=\cfrac{16}{8}$

$\sf x=2$

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Answer:

Step-by-step explanation:

You need to add the first 2 numbers and the answer needs to be bigger than the third number and if you add 10 + 5 will be 15 and the third number is 17, so the answer of this is the B

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3 years ago

The sign of the product of –35 and –625 is (positive, negative, zero)

ziro4ka [17]

Step-by-step explanation:

-35 x - 625 = 21875 so positive

263 x 0 = 0 so zero

-21 x 451 = - 9471 so negative

-350 x 89 = - 31150 so negative

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Please help to solve this.<br> Find sin5x,if sinx+cosx=1,4

MrMuchimi

Answer:

Hello,

Step-by-step explanation:

we must first remember that:

$\boxed{sin(5x)=5sin(x)-20*sin^3(x)+16*sin^5(x)}\\\\$

Let say t=sin(x)

$sin(x)+cos(x)=1.4\\\\t+\sqrt{1-t^2}=1.4\\\sqrt{1-t^2}=1.4-t\ we\ square\\1-t^2=1.4^2+t^2-2.8*t\\2t^2-2.8*t+0.96=0\\\Delta=2.8^2-4*2*0.96=0.16=0.4^2\\\\t=\dfrac{2.8-0.4}{4} =0.6\ or\ t=\dfrac{2.8+0.4}{4}=0.8\\\\t^3=0,216\ or\ t^3=0,512\\\\t^5=0,07776\ or\ t^5=0,32768\\\\\boxed{sin(5x)=5*0.6-20*0.216+16*0.07776=-0,07584}\\\\or\\\\\boxed{sin(5x)=5*0.8-20*0.512+16*0.32768=-0,99712}$

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How do you write 84% as a fraction?

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