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blsea [12.9K]
3 years ago
15

What is another name for like r.

Mathematics
2 answers:
Alina [70]3 years ago
3 0
It would seem that r correlates to line AC. So another name could be Line AC. Remember to put a line above the two letters to let people know it is a line. I hope this helps! =) 
Arturiano [62]3 years ago
3 0
You can also identify lines by points on the line, so we could call it line AC
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If five shirts cost $106.25, what is the cost of two shirts?
MA_775_DIABLO [31]
Your answer would be 42.5.

Divide 106.25 by 5 (which is 21.25) then multiply 21.25 by 2.
6 0
3 years ago
F=f (1-v/s) change the subject of the formula into v
Artyom0805 [142]
Changing the subject of the formula into v means expressing v in terms of the other given variables. So given the original equation, as shown below, we can rearrange it so that we have v isolated on one side.

F = f(1 - \frac{v}{s})
\frac{F}{f} = 1 - \frac{v}{s}
\frac{v}{s} = 1 - \frac{F}{f}

To isolate v, we can just multiply s to both sides and come up with the final equation below.

v = s(1 - \frac{F}{f})

Thus, we have v = s(1 - F/f) with v as the subject of the formula.

Answer: v = s(1 - F/f)
8 0
3 years ago
A study was designed to investigate the effects of two​ variables, (1) A​ student's level of mathematical anxiety and​ (2) teach
Mashcka [7]

Answer:

P(X>400)=P(\frac{X-\mu}{\sigma}>\frac{400-\mu}{\sigma})=P(Z>\frac{400-440}{20})=P(z>-2)

And we can find this probability using the complement rule:

P(z>-2)=1-P(z

And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.  

P(z>-2)=1-P(z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the scores of a population, and for this case we know the distribution for X is given by:

X \sim N(440,20)  

Where \mu=440 and \sigma=20

We are interested on this probability

P(X>440)

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X>400)=P(\frac{X-\mu}{\sigma}>\frac{400-\mu}{\sigma})=P(Z>\frac{400-440}{20})=P(z>-2)

And we can find this probability using the complement rule:

P(z>-2)=1-P(z

And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.  

P(z>-2)=1-P(z

6 0
4 years ago
If a car can travel 250 miles on 10 gallons of fuel, how many gallons are required to travel 1,325 miles?
Varvara68 [4.7K]
1325                      250
-------          =        -------      
    x                           10

1325(10) = 250x

13250/250 = 250x/250

x = 53 

53 gallons are required to travel 1325 miles

hope this helps

8 0
4 years ago
When Donetle stands at point R, he is 1000 feet from point S at the base of a cliff.
statuscvo [17]

Answer:

364 is right answer

Step-by-step explanation:

ST = 1000× tan

364 ft

8 0
2 years ago
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