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sesenic [268]
3 years ago
5

Can someone help me?

Mathematics
2 answers:
Alexandra [31]3 years ago
6 0
X=15, all you have to do is multiply
Kobotan [32]3 years ago
6 0

Step-by-step explanation:

total angle in a triangle180

<a +<b+<c=180

when u get x

put it in <b

then u get the value

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44 students completed some homework and the histogram shows information about the times taken. Work out an estimate of the inter
Vilka [71]

Answer:

q1=11

q3= 33

Step-by-step explanation:

The data set has 44 number of students. The first quartile is 25 %  of the numbers in the data set . So

25 % of 44 = 25/100 * 44= 0.25 *44 = 11

So the first quartile lies at 11.

Similarly the third quartile lies at the 75 % of the numbers of the data set . So

75 % of 44 = 75/100 * 44= 0.75 *44 = 33

So the third quartile lies at 33.

5 0
3 years ago
A survey is being planned to determine the mean amount of time corporation executives watch television. a pilot survey indicated
Natali [406]
Missing question: How many executives should be surveyed?

Solution:
Mean = 13 hours
SD = 3 hours
Confidence level = 95%

Mean viewing time within a quarter of an hour = 0.25 = 1.96*3/sqrt (N)

Where N = Sample population

N = {(1.96*3)/0.25}^2 = 553.19 ≈ 554

Therefore, 554 executives should be surveyed to yield such results.
5 0
3 years ago
How to solve the inequality 1/5 ≤ x/15?
MAXImum [283]

Answer:

3 <_ x

Step-by-step explanation:

multiply both sides by 15

1/5 * 15 <_ x

15/5 <_ x

3 <_ x

8 0
2 years ago
Benito spent $1761 to operate his car last year. Some of these expenses are listed below. Benito's only other expense was for ga
Serggg [28]
The averge per mile is 4.06
8 0
2 years ago
1+4=5&lt;br /&gt;<br> 2+5=12&lt;br /&gt;<br> 3+6=21&lt;br /&gt;<br> 8+11=?
san4es73 [151]
Next time make it more easyer
3 0
3 years ago
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