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Alecsey [184]
3 years ago
7

Another math question

Mathematics
2 answers:
antoniya [11.8K]3 years ago
7 0

Answer:

The best prediction possible for the number of times it will land on tails is 5 times.

Step-by-step explanation:

Because there are two sides to a coin, that means there will be a 50% chance of landing on a side. Since you are flipping 10 coins, the best prediction to make is that 50% of the flips, or 5 flips, will result in tails.

Tom [10]3 years ago
5 0

Answer:

5

Step-by-step explanation:  1/2 probability, 10 / 2 equals 5

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Mr. Coker drove 42 miles in 50 minutes. At this rate, how many miles did he drive in 5 minutes?
Artyom0805 [142]
The correct awnser should be 8.4.
7 0
3 years ago
For the function f(x) = 4x^3 -36x^2 + 5: (a) find the critical numbers, (b) find the open intervals where the function is increa
Nataly_w [17]

\bf f(x)=4x^3-36x^2+5\implies \cfrac{df}{dx}=12x^2-72x\implies \stackrel{\textit{setting the derivative to 0}}{0=12x(x-6)} \\\\\\ x= \begin{cases} 0\\ 6 \end{cases}


so we have those critical values, which gives us the intervals of (-∞, 0] , [0, 6] and [6, +∞).

where is it increasing or decreasing?  well, that's just a matter of checking a value on each region for the the first derivative, namely the first derivative test.

we can check for f(-1) = 12(-1)² - 72(-1),  is a positive value, increasing.

and check f(1) = 12(1)² - 72(1), is a negative value, decreasing.

and check f(7) = 12(7)² - 72(7), positive, so increasing.

check the picture below, and you can see there which are the minima or maxima.

3 0
3 years ago
Please! due in 1 hour! thanks!
8_murik_8 [283]

Answer:

Well $y =ax^2 + bx + c$, = -3. $/$

Step-by-step explanation:

8 0
3 years ago
1.3 times 10 to the negative second times 0.05
Ivan

Answer:

0.00065

Step-by-step explanation:

1.3 × 0.01 × 0.05

0.013 × 0.05

0.00065

8 0
3 years ago
Read 2 more answers
Please answer the question it’s for my math SAT
Taya2010 [7]

Answer: D.

This is tricky.

Think of the equation as an equation for a line

where in this case.      

C=5/9(f-32)

or

C=5/9f-5/9(32)

You can see the slope of the graph is 5/9  which means that for an increase of 1 degree Fahrenheit, the increase is 5/9.

c=5/9(f)

c=5/9(1)=5/9

Therefore, statement I is true. This is the equivalent to saying that an increase of 1 degree Celsius is equal to an increase of 9/5 Degrees Fahrenheit

c=5/9(f)

1=5/9(f)

f=9/5

Since 9/5=1.8 Statement 2, is true.

The only answer that has both statement I and statement II as true is D, but if you have time and want to be absolutely thorough, you can also check to see if statement III (an increase of 5/9 degree Fahrenheit is equal to a temperature increase of 1 degree Celsius) is true:

c=5/9(f)

c=5/9(5/9)

c=25/81 which is ≠ 1)

An increase of 5/9 degree Fahrenheit leads to an increase of 25/81

not 1 degree, Celsius, and so Statement III is not true.

The final answer is D.

I hope this helped x

5 0
4 years ago
Read 2 more answers
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