3 years ago

Tell me somthing <3 ^^

Mathematics

2 answers:

Ivahew [28]3 years ago

8 0

my favorite food is cheesecake and I'm lactose intolerant♡

Yuliya22 [10]3 years ago

7 0

Answer:

Step-by-step explanation:

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Look at this triangle work out length BC

Andreas93 [3]

Answer:

The length of BC is √105 cm or 10.2 cm.

Step-by-step explanation:

You have to apply Pythagoras Theorem, c² = a² + b² where c represents hypotenuse, a and b are the sides :

${c}^{2} = { a}^{2} + {b}^{2}$

$let \:a =BC \:, \: b = 8 \: , \: c = 13$

${13}^{2} = {BC}^{2} + {8}^{2}$

$169 = {BC}^{2} + 64$

${BC}^{2} = 169 - 64$

${BC}^{2} = 105$

$BC = \sqrt{105}$

$BC = 10.2 \: cm \: (3s.f)$

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What is the product of -15 and -3

gayaneshka [121]

The product would be -18

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4 years ago

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Problem

ddd [48]

Answer:

The area of the circular cross section of the pipe is $100\pi\ cm^{2}$

Step-by-step explanation:

we know that

The area of the circle (cross section of the pipe) is equal to

$A=\pi r^{2}$

we have

$r=20/2=10\ cm$ ----> the radius is half the diameter

substitute

$A=\pi (10)^{2}$

$A=100\pi\ cm^{2}$

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Derek must choose a four digit PIN number. Each digit can be chosen from 0-9. How many different pins can Derek choose?

ddd [48]

10,000 different combos

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xenn [34]

I think is B

I added 12 on the ride

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