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3 years ago

Help. Solve the equation... 4(x-2)=4x+10 Show how to solve too. I don't know what I'm doing

Mathematics

1 answer:

PilotLPTM [1.2K]3 years ago

4 0

Answer:

4x-8

Step-by-step explanation:

4(x-2)

4*x

4 in to -2

you keep the sign the same so your equation should look like this

4x-8

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Yuki888 [10]

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3 years ago

Read 2 more answers

Evaluate. −7×(−6)×5= -7×(-6)×5= ______

Lunna [17]

Answer:

210

Step-by-step explanation:

double negatives = positive

-7 * -6 * 5 = 7 * 6 * 5 = 42* 5 = 210

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3 years ago

The number 2400 is first increased by 30%.The value obtained is next decreased by 20%.Find the final number

kvasek [131]

2400 is increased by 30%.

so,

2400 + (30/100 * 2400)

2400 + (30 * 24)

2400 + 720

3120

this number is decreased by 20%.

so,

3120 - (20/100 * 3120)

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3120 - 624

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therefore, the final number will be 2496.

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4 years ago

Question :-

DochEvi [55]

$\qquad\qquad\huge\underline{{\sf Answer}}$

Let's solve ~

$\qquad \sf \dashrightarrow \: \bigg( \dfrac{1}{ \sqrt{7 + \sqrt{5} } } + \sqrt{7 + \sqrt{5} } \bigg) {}^{2}$

$\qquad \sf \dashrightarrow \: \bigg( \dfrac{1}{ \sqrt{7 + \sqrt{5} } } \bigg ) {}^{2} + \bigg( \sqrt{7 + \sqrt{5} } \bigg) {}^{2} + 2 \cdot \dfrac{1}{ \sqrt{7 + \sqrt{5} } } \cdot \sqrt{7 + \sqrt{5} }$

$\qquad \sf \dashrightarrow \: \dfrac{1}{7 + \sqrt{5} } + 7 + \sqrt{5} + 2$

$\qquad \sf \dashrightarrow \: \dfrac{49 + 7 \sqrt{5} + 7 \sqrt{5} + 5 + 14 + 2 \sqrt{5} }{7 + \sqrt{5} }$

$\qquad \sf \dashrightarrow \: \dfrac{68+ 16 \sqrt{5} }{7 + \sqrt{5} }$

5 0

2 years ago

E U F {2,4,6,8,} true or false

lesya [120]

Tbh i think its true not 100%

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3 years ago