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3 years ago

I'm having trouble finding the missing measures. Any help? (20 POINTS!)

Mathematics

1 answer:

steposvetlana [31]3 years ago

4 0

This is the correct answer

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Can somebody answer these 2 questions

AnnZ [28]

Answer:

2. 12.08

3. 7.74

Step-by-step explanation:

a squared + b squared = c squared

2. 5 squared = 25, 11 squared = 121, 25 + 121 = 146, the squre root of 146 is 12.08

3.19 squared = 361, 421 - 361 = 60 60 squared = 7.74

3 0

3 years ago

Read 2 more answers

Indicate whether the statement below is true or false. A store is offering a 15% discount. Tom wants to know how much he will ha

eduard

Answer:

false

Step-by-step explanation:

I think it is backwards to figure a fifteen percent discount, you would make 15% into .15 and then multiply .15 times the original prioce to see the amount off.

3 0

2 years ago

8. How many ways can a committee of 5 students be chosen from a student council of 30 students? Is the order in which the member

tankabanditka [31]

Answer: A committee of 5 students can be chosen from a student council of 30 students in 142506 ways.

No , the order in which the members of the committee are chosen is not important.

Step-by-step explanation:

Given : The total number of students in the council = 30

The number of students needed to be chosen = 5

The order in which the members of the committee are chosen does not matter.

So we Combinations (If order matters then we use permutations.)

The number of combinations of to select r things of n things = $^nC_r=\dfrac{n!}{r!(n-r)!}$

So the number of ways a committee of 5 students can be chosen from a student council of 30 students= $^{30}C_5=\dfrac{30!}{5!(30-5)!}$

$=\dfrac{30\times29\times28\times27\times26\times25!}{(120)\times25!}=142506$

Therefore , a committee of 5 students can be chosen from a student council of 30 students in 142506 ways.

4 0

3 years ago

Which arc is a semicircle?

hichkok12 [17]

Answer:

BE is the semicircle

7 0

3 years ago

Read 2 more answers

At a sleep over, six friends were talking about the number of hours of sleep they usually get each night. Five of them said: 12,

mr Goodwill [35]

Answer:

So average of a set of values is the sum of given values divided by the number of values

So, in this case the given values are 12, 9 , 4 , 8 ,7 and x (letting the 6th friend's time be x)

so the average will be:

(12 + 9 + 4 + 8 + 7 + x)/6 = 9

40 + x = 54

x = 54 - 40

x = 14 hours

4 0

3 years ago