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Nataly_w [17]
3 years ago
12

How do i do this and what is it called?​

Mathematics
2 answers:
GenaCL600 [577]3 years ago
7 0
The answer will be Cosx =1/2 and -1

rusak2 [61]3 years ago
3 0

don't you have a text book with examples in it?

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Using two independent samples, two population means are compared to determine if a difference exists. The population standard de
ANTONII [103]

Answer:

Hence the degrees of freedom are associated with the critical value is 25.

Step-by-step explanation:

Using two independent samples, two population means are  

compared to determine if a difference exists, the population standard deviation is equal.  

sample size 1 = n_{1}= 15 and sample size 2 = n_{2} = 12  

since, population standard deviations are equal, required degrees of freedom              

= n_{1}  + n_{2} - 2 \\= 15 + 12 - 2\\ = 25  

8 0
2 years ago
5a+8+(-2a)=-7<br> I need help with this question especially because of the parenthesis
Mashcka [7]

Answer:

5a+8+(-2a)=-7

5a+8-2a=-7

5a-2a=-7-8

3a=-15

3a/3=-15/3

a=-5

3 0
3 years ago
Read 2 more answers
Martha measures the big prize wheel on a game show and calculates that it has a circumference of 12.56 yards. What is the prize
trasher [3.6K]
The radius is 2 yards... 
Formula for circumference is \pi r^2 so divide your circumference by 3.14 or pi and you get 4 the square root of 4 is 2. 

Hope this helps!

7 0
3 years ago
teacher has 27 students in her class she asked the students to form as many groups of 4 as possible how many students are not be
stepan [7]
If there are 27 students in the class and they have to form as many groups of 4 as possible, you can calculate this using the following step: 

27 / 4 = 6.75 = 6 3/4

Result: 27 students can form 6 groups of 4 students and 3 students have to form their own group.
4 0
2 years ago
TIME REMAINING
mars1129 [50]

Answer:

A pint of veggies is approximately $1.75

Step-by-step explanation:

(7 × 2.85) + 5v = 28.70. 19.95 + 5v = 28.70. 5v = 28.70 - 19.95. 5v = 8.75. v = 8.75/5. v = 1.75

Hope this helps!!

4 0
2 years ago
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