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Alex73 [517]
3 years ago
9

State if each pair of ratios forms a proportion 4/2 and 20/6

Mathematics
2 answers:
SashulF [63]3 years ago
7 0
4/2 forms a porportion because it is equal to 2
20/6 forms a porportion to 10/3
Inga [223]3 years ago
5 0
4/2 forms a proportion because it can be simplified further into 2. 
20/6 forms a proportion because it can be simplified to 10/3
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In the company Educational Solutions, the ratio of the employees using a laptop computer to those not using one was 1:3 in the y
KengaRu [80]

Answer:

Step-by-step explanation:

The ratio of the employees using a laptop computer to those not using one was 1:3 in the year 2005. In 2006, the number of employees using a laptop as well as those not using it doubled. This means that both proportions would be doubled. Therefore, the ratio of the employees using a laptop to those not using one in 2006 would be

2:6

3 0
3 years ago
Someone help please this is for trigonometry
Softa [21]
Hi there!

Something really good to remember about trigonometry is SOHCAHTOA. I won’t dive into too much detail about it, but you should google it for future assignments.

Anyways,

tan50°=14/AB
ABtan50°=14
AB=14/tan50°
AB=11.75

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ACcos50°=14
AC=14/cos50°
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For the measure of angle C you can use a theorem called the third angle theorem. In every single possible triangle, the sum of all three angles adds up to 180°. You can set up an equation like so...

angleC=180-(90+50)
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4 0
3 years ago
There are 751 identical plastic chips numbered through 751 in a box.
den301095 [7]

Answer:

1.1331

Step-by-step explanation:

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7 0
3 years ago
PLEASE HELP DUE IN 10 MINUTES!!!!! FIND THE SLOPE!
snow_tiger [21]

Answer:

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Step-by-step explanation:

4 0
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Read 2 more answers
A surgical technique is performed on seven patients. You are told there is a 70% chance of success. Use a table to find the prob
kiruha [24]

Answer:

31.77% probability the surgery is successful for exactly five patients.

Step-by-step explanation:

For each patient, there are only two possible outcomes. Either the surgery is successful, or it is not. The probability of the surgery being successful for a patient is independent of other patients. So we use the binomial probability distribution 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.

A surgical technique is performed on seven patients.

This means that n = 7

You are told there is a 70% chance of success.

This means that p = 0.7

Find the probability the surgery is successful for exactly five patients.

This is P(X = 5).

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

P(X = 5) = C_{7,5}.(0.7)^{5}.(0.3)^{2} = 0.3177

31.77% probability the surgery is successful for exactly five patients.

5 0
3 years ago
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