2 years ago

Bill has x pence.

Mathematics

1 answer:

Anna [14]2 years ago

3 0

Ben has x pence, but Bill has 2x (twice more)

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Alonzo wrote the equation x=2+4y-5 solve for y

kati45 [8]

if x= 2+4y-5 then x-2 +5 = 4y so y = (x-2+5) /4 = ( x+3) /4

conclusion y = (x+3)/4

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3 years ago

If a coin is flipped 75 times, in how many ways could there be exactly two tails?

Dimas [21]

Answer:

2775 ways

Step-by-step explanation:

We have been given the case to choose exactly two tails when flipped 75 times means $^{75}C_2$

Since, $^nC_r$ is equal to $\frac{n!}{r!\cdot(n-r)!}$

Here n =75, r=2 substituting the values we will get

$\frac{75!}{2!(75-2)!}$

$n!=n\cdot (n-1)\cdot (n-2).....1$

After simplification we will get $\frac{75\cdot 74\cdot 73!}{2!\cdot73!}$

Cancel out the common term that is 73! we will get

after more simplification we will get $\frac{75\cdot 74\cdot}{2!}$

Finally, we will get $\frac{75\cdot 74\cdot}{2}=75\cdot37=2775$

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3 years ago

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Write the point slope form of an equation of the line through the points (-7,7) and (4,1)

Andre45 [30]

(-7,7)
(4,1)

Slope:-

m=1-7/4+7
m=-6/11

Equation in point slope form

y-7=-6/11(x+7)

Option A

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The lateral surface area is the lateral surface area

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A polygon with an unknown number of sides is called a(n) _____

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It is called an n-gon.

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