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geniusboy [140]
2 years ago
7

Just got switched to a new math class.... I need wit these two questions....

Mathematics
1 answer:
umka2103 [35]2 years ago
8 0
I can’t see it needs better lighting
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If you flip a coin 4 times, what is the best prediction possible for the number of times it will land on tails?
allochka39001 [22]

Answer:

2

Step-by-step explanation:

Each time you flip a coin, there is a 50% change of it landing on tails.  So half the time you should get a tails.  

Half of 4 is 2, so you will likely get 2 tails.

7 0
3 years ago
If w=9 x=7. and y=1 what is 11y-5
alexdok [17]
11y-5
11(1)-5
11-5
6
six is the answer
7 0
3 years ago
Mark bought refreshments. Sandwiches were 2.50 each and bottles of water were $1.25 each. He spent $356.25 on a total of 180 ite
Over [174]
First you have to write the equation. in the scenario, use standard form.
Ax+By=C
plug the numbers in. A=2.50, B=1.25, and C is the total, 356.25. the 180 doesn't come in quite yet.
your equation is 2.50x+1.25y=356.25. now, since they only bought 180 items, you can't go past that.

I am sorry, but I am about to leave for school, and therefore do not have enough time to answer the last of your question. I hope the part I could answer has helped you.
7 0
3 years ago
If f(x) = (1/9)(9^x) what is f(3)
TiliK225 [7]

Answer:  The required value of f(3) is 81.

Step-by-step explanation:  We are given the following function :

f(x)=\left(\dfrac{1}{9}\right)9^x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

We are to find the value of f(3).

Substituting x = 3 in equation (i), we get

f(3)\\\\\\=\left(\dfrac{1}{9}\right)\times9^3\\\\=9^2\\\\=81.

Thus, the required value of f(3) is 81.

8 0
3 years ago
Read 2 more answers
A plumber needs to replace 20 feet of copper piping. When he gets to the supply store, the lengths are given in meters. How many
mars1129 [50]
He would need 6 meters of copper piping or just a tiny tincy bit more
5 0
2 years ago
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