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yarga [219]
3 years ago
14

Please help me with my homework!!!!

Mathematics
1 answer:
Zina [86]3 years ago
8 0

Answer:

∠ACB= 57°

AB= 8.80 units (3 s.f.)

AC= 10.1 units (3 s.f.)

Step-by-step explanation:

Please see attached picture for full solution.

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There are 3 students to 1 adult on a field trip. You need to find the number of adults needed for 24 students. What would the se
coldgirl [10]

Answer:

a = 24*1/3

a =8  

Step-by-step explanation:

We are using proportions to solve this problem by putting students over adults

students         3                   24

--------------- = ---------------  = -------------

adults                 1                   a

where a is the unknown number of adults

Using cross products

3a=24*1

Divide by 3

a = 24*1/3

a = 24/3

a = 8

5 0
3 years ago
A CEO leads a company of 250 employees and wants to conduct a survey.
krek1111 [17]

Answer:

D

Step-by-step explanation:

You would do D because the other options aren't that random. Randomly choosing employees <em>is</em> a random sample and will give you a valid answer.

8 0
3 years ago
Read 2 more answers
The table shows the height of 5 students in inches what is the mean absolute deviation for these numbers
german

Answer:

4

Step-by-step explanation:

To find the mean absolute deviation (MAD), first find the mean (or average).

μ = (59 + 71 + 68 + 75 + 67) / 5

μ = 68

Next, subtract the mean from each value and take the absolute value.

|59 − 68| = 9

|71 − 68| = 3

|68 − 68| = 0

|75 − 68| = 7

|67 − 68| = 1

Sum the results and divide by the number of students.

MAD = (9 + 3 + 0 + 7 + 1) / 5

MAD = 4

3 0
3 years ago
If a coin is flipped 20 times and a head comes up 7 times, what is the relative frequency of a head coming up?
Tju [1.3M]
Relative frequency is the absolute frequency (i.e. the number of times of the wanted result) divided by the total  number of events.

In this case you have to calculate: the number of heads that came up divided by the number of times the coin was flipped.

Number of times the coin was flipped: 20
Numbef of times head came up: 7

Relative frequency: 7 / 20 = 0.35, which is the option B.
7 0
3 years ago
Read 2 more answers
What is 30% of 25? please help
Mariulka [41]

Answer:

7.5

Step-by-step explanation:

multiply then divide

5 0
3 years ago
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