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sladkih [1.3K]
3 years ago
14

PLEASE HELP!!!

Mathematics
2 answers:
devlian [24]3 years ago
8 0
Addition or Subtraction
Addition or Subtraction
Multiplication or Division
Multiplication or Division

all of order. I'll have to confirm this though
myrzilka [38]3 years ago
3 0

Answer:

Just took the test from k12! The answer is in the pic below.



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Brian made a tasty burger. the diameter of the burger was 5cm. what was the area of burger
Vadim26 [7]
19.625cm squared because you have to divide the diameter by 2 to get the radius.
area of circle=pi times radius times radius
                    =3.14 times 2.5 times 2.5
                    =19.625cm squared

6 0
3 years ago
What does not contain an irrational number?
Aleksandr-060686 [28]

Answer:

i think it's the first option.

6 0
3 years ago
Read 2 more answers
The discount on a pack of socks is 15%. It is on sale for $17. What is the original price of the pack of socks?
Aneli [31]

Answer:

$19.55

Step-by-step explanation:

17*0.15=2.55

17+2.55=19.55

4 0
2 years ago
Suppose that in a random selection of 100 colored​ candies, 26​% of them are blue. The candy company claims that the percentage
quester [9]

Answer:  a) -0.2252, b) 0.8219

Step-by-step explanation:

Since we have given that

Sample size n = 100

Probability that candies are blue = p= 0.26

Probability that company claims that it is blue candy = P = 0.27

So, Q = 1-P= 1-0.27 = 0.73

So, Null hypothesis : H_0:p=P

Alternate hypothesis : H_1:p\neq P

So, the test statistic would be

z=\dfrac{p-P}{\sqrt{\dfrac{P.Q}{n}}}\\\\z=\dfrac{0.26-0.27}{\sqrt{\dfrac{0.27\times 0.73}{100}}}\\\\z=-0.2252

Since α = 0.05

So, critical value of z = 1.96

p-value = P(Z>Z(calculated)

Using the excel function , we get that

P(z>0.2252)\\\\=2\times 0.410.911845\\\\=0.8219

Hence, a) -0.2252, b) 0.8219

6 0
2 years ago
Erin gets her exercise by running. The graph shows the distances she covers in a given amount of time. How many hours does it ta
soldi70 [24.7K]

The correct answer is  c. 2 \frac{1}{2} hours

Explanation:

The graphic shows the relationship between the distance Erin covers by running and the time this requires. Additionally, to know the specific time that takes for Erin to run a specific distance or vice versa it is necessary to observe at which point the two variables intersect in the line of the graph.

According to this, Erin runs 25 miles (y-axis) in 2.5 hours (x-axis), which you can know because in the line shown by the graph the distance 25 miles that is in the middle of 20 and 30 miles intersects with 2.5 hours or the middle between 2 and 3. Additionally, this number can be expressed as 2 and a half hours, 2.5 or even 2 \frac{1}{2} hours because the fraction represents half. This makes option C the answer.

6 0
3 years ago
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