2 years ago

Can someone help me with this question, please?

Mathematics

1 answer:

stellarik [79]2 years ago

4 0

Answer:

15 or 18

Step-by-step explanation:

the top is 20 and it is bigger than the side

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-18+6-40 please help

Natali [406]

Answer:

-52

Step-by-step explanation:

-18+6=-12

-12-40=-52

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2 years ago

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The volume of a cube is 448cm3.<br> Work out the length of its side rounded to 1 DP. Please hellp

Virty [35]

Answer:

7.65 or 7.7 rounded to 1 DP

Step-by-step explanation:

To find the length of the side of a cube we do the inverse of finding the volume.

one side= x

If x³ = volume, therefore ∛448 is how to find the length of one side.

∛448= 7.65

I hope this helps you.

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2 years ago

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yanalaym [24]

It’s 10 it has it near the dot

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2 years ago

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Multiply -10(-7x² + 5x)

tatiyna

Answer: 70x^2 -50x

Step-by-step explanation:

^ means exponent

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2 years ago

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Elias was given a lock for his school locker. The lock contains numbers between

daser333 [38]

Answer:

34,220

Step-by-step explanation:

Because order doesn't matter, but the numbers can't be repeated, we need to find the number of combinations where 3 individual numbers can be chosen out of 60 possible numbers using the binomial coefficient:

$\binom{n}{k}=\frac{n!}{k!(n-k)!}\\ \\\binom{60}{3}=\frac{60!}{3!(60-3)!}\\\\\binom{60}{3}=\frac{60!}{3!(57)!}\\\\\binom{60}{3}=\frac{60*59*58}{3*2*1}\\ \\\binom{60}{3}=34220$

Thus, Elias can make 34,220 unique 3-number codes given 60 different numbers.

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1 year ago