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oksian1 [2.3K]
2 years ago
15

Find the Expression OF this equation.c/3 / ac/4QUESTION C

Mathematics
1 answer:
Fiesta28 [93]2 years ago
8 0

Answer:

See below

Step-by-step explanation:

(a) \:  \: x =  \frac{c}{3}  \\  \\  \implies \:  {x}^{2}  =   { \bigg( \frac{c}{3} \bigg) }^{2}   \\  \\ \bold{\implies \:  {x}^{2}  =     \frac{ {c}^{2} }{9} } \\  \\ (b) \:  \: x + y =  \frac{c}{3}  +  \frac{ac}{4}  \\  \\\implies \:  \bold{x + y  =  \frac{4c + 3ac}{12} } \\  \\  \frac{xy}{z}  =  \frac{ \frac{c}{3}  \times  \frac{ac}{4} }{ \frac{ {a}^{2} }{2c + 1} }  \\  \\ =  \frac{ \frac{ac ^{2} }{12} }{ \frac{ {a}^{2} }{2c + 1} }  \\  \\  =  \frac{a {c}^{2} }{12}  \times  \frac{2c + 1}{ {a}^{2} }  \\  \\  \implies\bold{\frac{xy}{z}  =  \frac{ {c}^{2}(2c + 1) }{12a} }

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I put an answer but I’m unsure of it, any help would be much appreciated!!
Darya [45]
First you need to change 45 feet to 540 inches.

Now you can compare the two ratios:
1 : 25 and 25 : 540

We now need to change the second ratio to a unit rate:
25:540 as a unit rate would be 1 : 21.6 and this is steeper than the a 1 : 25 drop

So, your answer would be: pipe drops to much vertically to function properly
8 0
3 years ago
Please help me with this
N76 [4]

Answer:

ASA

Step-by-step explanation:

One pair of corresponding angles (in the bottom left/right) are already marked for us, and we're also given a pair of corresponding sides (the 8cm ones on the left and right). The two triangles have one more angle in common too - the one they're overlapping on the top corner. So, we have:

- Two pairs of congruent corresponding angles, and

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which is enough information to call the triangles congruent by Angle-Side-Angle (ASA).

4 0
3 years ago
BlueSky Air has the best on-time arrival rate with 80% of its flights arriving on time. A test is conducted by randomly selectin
Strike441 [17]

Answer:

0.211 = 21.1% probability that 2 flights of BlueSky Air arrive late

Step-by-step explanation:

For each flight, there are only two possible outcomes. Either they arrive late, or they do not. The probability of a flight arriving late is independent of any other flight. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

BlueSky Air has the best on-time arrival rate with 80% of its flights arriving on time.

This means that 100 - 80 = 20% are late, which means that p = 0.2

Randomly selecting 16 BlueSky Air flights

This means that n = 16

What is the probability that 2 flights of BlueSky Air arrive late?

This is P(X = 2).

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 2) = C_{16,2}.(0.2)^{2}.(0.8)^{14} = 0.211

0.211 = 21.1% probability that 2 flights of BlueSky Air arrive late

6 0
3 years ago
Sean gets some ice cubes from the freezer. There are 3 ice cubes in the tray, and Sean uses 2 ice cubes. Sean wants to know what
MrMuchimi

Answer:

he used 2/3 of the ice cubes

7 0
3 years ago
Question 3 of 20 Which point lies on the graph of the function shown below? v=x^2 + 3x - 2 O A. (1,1) O B. (2,6) O C. (-1,-4) O
grin007 [14]

9514 1404 393

Answer:

  C.  (-1, -4)

Step-by-step explanation:

Since you have the graph, you can easily plot the points to see which lies on it. The attached shows that only (-1, -4) is on the graph.

8 0
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