3 years ago

John flips a fair coin 40 times. How many times can he expect heads to appear?

1 answer:

8 0

The answer is 20, since it’s heads and tails you have a half and half chance, therefore you divide 40 in half and get 20

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Literal Equations: bc + 3g = 2k, for c

san4es73 [151]

Bc + 3g = 2k |Substract 3g from both sides
bc = 2k -3g |Divide both sides by b
c = $\frac{2k - 3g}{b}$

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3 years ago

A=2 pie r squared + 2 pie r h solve for h

Sindrei [870]

<span>A=2pie r^2 + 2pie rh so get h alone.
first take out the common factor of 2pie 2, so A=2pie r (r+h)
then divide by 2pie r, A/2pie r= r+h
then subtract r, so (A/2pie r) - r= h</span>

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3 years ago

What’s the output of f(3)=-6x+4

stepladder [879]

Answer:

-14

Step-by-step explanation:

plug 3 into x

multiply -6 by 3=-18

-18 +4 =-14

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4 years ago

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Determine if the two triangles are congruent. If they are, state how you know. SAS , ASA, AAS, SSS or HL

Mandarinka [93]

Step-by-step explanation:

1. SAS

2. SSS

3. RHS

4. SAS

5. RHS

6. SAS

7. ASA

8. SAS

9. ASA

10. SSS

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3 years ago

There are 3 cans that store 9 tennis balls. Consider the number of balls per can.

Gelneren [198K]

Answer:

3 balls per can

Step-by-step explanation:

It there are 3 cans and 9 balls if you just divide 9 balls by 3 cans you get the answer which is 3 balls per can.

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3 years ago

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