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3 years ago

I need help, I do not understand.

Mathematics

1 answer:

melamori03 [73]3 years ago

8 0

Answer: 51% and .51

Step-by-step explanation: 51/100 squares are filled. Since it's already of 100, your decimal is 51. Move it twice to the left, your percentage is 51.

Hope this helps :)

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Given that 3^10 = 59 049 , what is 3^-10 expressed as an exact value?

fiasKO [112]

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4 years ago

How do I solve -15= -3n/5

xenn [34]

Answer:

Step-by-step explanation:

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3 years ago

What is the surface area of a cube that is 4 cm on each edge?

icang [17]

Answer:

96 units squared

Step-by-step explanation:

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3 years ago

In the first quadrant you start at 3,7 and move 3 units down what is the point you end up with

OLEGan [10]

Answer:

(3, 4).

Step-by-step explanation:

The x coordinate stays the same but the y coordinate becomes 7 - 3 = 4.

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3 years ago

The sum of squares of three consecutive numbers is 77 find the numbers

ollegr [7]

Answer:

4,5,6 are the three consecutive numbers. 16, 25 and 36 are their squares.

Step-by-step explanation:

Let the three consecutive numbers be x, (x+1), (x+2)

Now, the squares of these three numbers are $x^{2} ,(x+1)^{2} ,(x+2)^{2}$

Sum = 77

∴by the problem ,

$x^{2} +(x+1)^{2}+(x+2)^{2} = 77\\x^{2} +(x^{2} +2x+1)+(x^{2}+4x +4) = 77\\x^{2} +x^{2} +2x+1+x^{2} +4x +4 = 77\\3x^{2} +6x+5 = 77\\3x^{2} +6x = 77-5\\3x^{2} + 6x = 72\\3x^{2} +6x-72= 0\\$