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3 years ago

8

24 is 60% of what number

1 answer:

STatiana [176]3 years ago

7 0

The answer would be 40

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If $x$ and $y$ are positive real numbers for which $(x + y)^2 + (x - y)^2 = 10$ and $(x + y)^4 + (x - y)^4 = 98$, what is the va

slava [35]

$(x+y)^2+(x-y)^2=10$
$\implies 2x^2+2y^2=10$
$\implies x^2+y^2=5$
$\implies (x^2+y^2)^2=x^4+2x^2y^2+y^4=25$

$(x+y)^4+(x-y)^4=98$
$\implies 2x^4+12x^2y^2+2y^4=98$
$\implies x^4+6x^2y^2+y^4=49$
$\implies 25+4x^2y^2=49$

$4x^2y^2=24$
$\implies x^2y^2=6$
$\implies xy=\sqrt6$

6 0

4 years ago

{1/8, -0.02555,0.2,-1/7} following set up numbers from least to greatest by the way there are two negatives

nata0808 [166]

Change each of the fractions into decimals.

1/8 becomes 0.125

-1/7 becomes -0.143

and -0.02555

0.2

In order from least to greatest,

-0.143, -0.02555, 0.125, 0.2

OR

-1/7, -0.02555, 1/8 and 0.2

6 0

4 years ago

Can someone help? Don’t need any working out

Novay_Z [31]

Volume= 301.6
curved surface area= 188.5

7 0

3 years ago

What is the amount of the discount

djverab [1.8K]

The answer is $3.74

Hope this helps

6 0

3 years ago

Read 2 more answers

What is the fraction bar for a rectangle divided into 4 parts.

Rasek [7]

Answer:

im pretty sure its 1/4

Step-by-step explanation:

4 0

3 years ago