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3 years ago

Can you make 1000using only 8's

Mathematics

2 answers:

soldier1979 [14.2K]3 years ago

6 0

Yes, the expression to answer that is 1,000 divided by, the answer is 125.

Flura [38]3 years ago

5 0

(8 × 8 × 8) + (8 × 8 × 8) - (8 + 8 + 8)

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If x+y=16 and x-y=-2, what is the value of xy?

Fantom [35]

Answer:

Y=7 and

X=9

Step-by-step explanation:

X+Y=16

X=2+Y

2+Y+Y=16

2+2Y=16

2Y=16-2

2Y=14

2Y/2=14/2

Y=7

X =2+Y

So X=9

8 0

1 year ago

-8+5w^4=28 what is w=

Murljashka [212]

Answer:

w = ± $\sqrt[4]{36/5}$

Step-by-step explanation:

-8+5w^4=28

You can regroup it:

5w^4 - 8 = 28

Add 8 to both side:

5w^4 = 28 + 8

5w^4 = 36

Divide both side by 5:

5w^4/5 = 36/5

w^4 = 36/5

Take the 4 root of both sides:

w = ± $\sqrt[4]{36/5}$

Hope this help you :3

3 0

3 years ago

Read 2 more answers

Consider the series 4 + 12 + 36 ... Find the sum of the first 9 terms.

jeyben [28]

Answer:

39364

Step-by-step explanation:

You can simplify the equation to make 4(1+3+9...) The nth term is therefore $3^{n-1}$ so u can substitute that into the equation so 4( $3^{n-1}+ 3^{n} + 3^{n+1}$ ..). This would simplify to 4( $3^0 +3+3^2$ + $3^3+3^4+3^5+3^6+3^7+3^8$ ). By simplifying this, you can make it so 4( $2^2+6^2+18^2+42^2+81^2$ ) = 4(4+36+324+2916+6561) =39364