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4 years ago

F(5)= 3.14r^{2} pls help

1 answer:

7 0

If you have
.. F(r) = πr^2
and you want to evaluate it for r=5, you put 5 in place of every instance of r, then do the arithmetic.
.. F(5) = π*5^2
.. F(5) = 3.14*25 = 78.5

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7. Jack and Max share some counters. Jack has 3 times as many counters as Max.

FrozenT [24]

To answer this item, we let x be the number of counters that Max has. By the representation, the number of counters that Jack has is 3x.

a. Ratio of counters,
3x:x
which can be simplified by dividing by x both sides of the ratio giving us the answer of,
3:1

b. Fraction of counters Max have,
fraction = x / (x + 3x) = 1/4

6 0

3 years ago

There is 18 inches of snow on the ground. Snow is falling at a rate of 4 inches per hour. Write a function to represent the tota

stealth61 [152]

Answer:

$f(x) = 4x + 18$

Step-by-step explanation:

Since there are 18 inches of snow already, 18 is our constant term in the function. Then, we describe x to be the number of hours that it snows for. We multiply this by 4 to find how many inches of snow fell during those hours. We add this term to the constant term to get the solution to y or $f(x)$

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3 years ago

Students are trying to choose new school colors.

choli [55]

A. because school lockers can be any color and the most popular color in your school could be any color.

4 0

4 years ago

If g(x)=|x-3|, find the values of g(3) and g(-3)

agasfer [191]

Plug in what ever value is the function of g for x and solve:
g(3) = |3-3| = |0| = 0
g(-3) = |(-3)-3| = |(-6)| = 6

Hope this helps :)

5 0

4 years ago

A bag contains 5 yellow blocks, 2 green blocks and 3 blue blocks. If you choose one block and then another block without putting

Anika [276]

Answer:

The probability that the first block will be green and the second will be yellow is $\frac{1}{9}$ or 0.111.

Step-by-step explanation:

We are given that a bag contains 5 yellow blocks, 2 green blocks and 3 blue blocks.

Also, we choose one block and then another block without putting the first one back in the bag.

Firstly, as we know that Probability of any event is given by ;

Probability of an event = $\frac{\text{Favorable number of outcomes}}{\text{Total number of outcomes}}$

SO, Probability that the first block will be green = $\frac{\text{Number of green blocks}}{\text{Total blocks in the bag}}$

Here, Number of green blocks = 2

Total number of blocks in bag = 5 yellow + 2 green + 3 blue = 10 blocks

So, Probability that the first block will be green = $\frac{2}{10}$

Similarly, Probability that the second block will be yellow =

$\frac{\text{Number of yellow blocks}}{\text{Total number of remaining blocks in the bag}}$

Here, Number of yellow blocks = 5

Total number of remaining blocks in bag = 10 - 1 = 9 blocks {because we haven't put the block back after choosing the first}

So, Probability that the second block will be yellow = $\frac{5}{9}$

Now, Probability that the first block will be green and the second will be yellow = $\frac{2}{10} \times \frac{5}{9}$

= $\frac{1}{9}$ = 0.111

Hence, the required probability is 0.111.

8 0

3 years ago