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2 years ago

12

Help me with this question

1 answer:

yanalaym [24]2 years ago

7 0

I am assuming that you will need to find the circumference of the circle.

Here is the original formula for finding the circumference using diameter:

C= πd

Because we should use 3.14 for pi and we are given the diameter our problem will now look like this:

C=3.14(15)

By multiplying these two together, our answer will be:

B. 47.1

Hope this helps!

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The probability that a certain kind of component will survive a shock test is 3/4. Find the probability that exactly 2 of the ne

Marina86 [1]

Answer:

Therefore the required probability is $=\frac{27}{128}$

Step-by-step explanation:

The probability of success is $\frac{3}{4}$

The number of trial = 4

X= the items survive out of 4

$P(x=r)=^nC_rq^{n-r}p^r$ p =the probability of success and q = the probability failure.

p= $\frac{3}{4}$ and $q=(1-\frac{3}{4})=\frac{1}{4}$

$\therefore P(X=2)=^4C_2(\frac{1}{4} )^2(\frac{3}{4} )^2$

$=\frac{4!}{2!2!} (\frac{1}{16} )(\frac{9}{16} )$

$=\frac{27}{128}$

Therefore the required probability is $=\frac{27}{128}$

3 0

3 years ago

T = 320.00 + 0.40b

Gemiola [76]

Answer:

c) The total price for the service when Terrance's price was equivalent to Sylvester's price is $600.

Step-by-step explanation:

Here, t = 320.00 + 0.40 b

and t = The total prices charged by Terrance for packing and moving b boxes.

s = 250.00 +0.50 b

and s = The total prices charged by Sylvester for packing and moving b boxes.

Now, to find the number of boxes, when both the prices are equal.

⇒320.00 + 0.40 b = 250.00 +0.50 b

or, 320 - 250 = 0.50 b - 0.40 b

or, 0.10 b = 70

or, b= 70/0.10 = 700

Hence, for packing and moving b = 700 boxes, both companies charge the same amount.

Now, the price charged = 320 + 0.4 (b)

= 320 + 0.4(70) = 320 + 280

= 600

or, the total price for the service when Terrance's price was equivalent to Sylvester's price is $600.

3 0

3 years ago

Movies are on sale for 14 the original price. If the original price is $20, which expression gives the sale price?

Shkiper50 [21]

Answer:

20×1/4

Step-by-step explanation:

4 0

2 years ago

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Nikolay [14]

Answer:

y = <u>1</u><u> </u>x - <u>9</u><u> </u><u> </u><u>(</u><u> </u><u>L</u><u>.</u><u>C</u><u>.</u><u>M</u><u> </u>= 2 )

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3 0

2 years ago

Read 2 more answers

Remember that a function can be represented with a graph, a table of numbers, and algebraic formula, or words. for each of the f

Vladimir [108]

In this question, we have a graph given. And using that graph we have to find the value of f(1) .

f(1) means the y value when x=1 .

So we need to check the value of y at x=1 .

And if we follow the graph, we will see that at x=1, y=2.5 . So the value of f(1)=2.5 and that's the required answer .

5 0

3 years ago