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faust18 [17]
3 years ago
13

​ 7TH GRADE MATH EASY (BEST ANSWER)

Mathematics
2 answers:
murzikaleks [220]3 years ago
6 0
Comlpenentary angles add to 90 degrees


angle3+angle4=90
angle4=49
angle3+49=90
minus 49 both sides
angle3=41

angle3=41 degrees
enot [183]3 years ago
4 0
<3 is 41 because complementary angles add up to 90.
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−1/3−(−1/2)
Radda [10]

Hi ;-)

-\frac{1}{3}-(-\frac{1}{2})=-\frac{1}{3}+\frac{1}{2}=-\frac{2}{6}+\frac{3}{6}=\frac{3}{6}-\frac{2}{6}=\frac{1}{6}\\\\3\frac{1}{3}-5=-(5-3\frac{1}{3})=-(4\frac{3}{3}-3\frac{1}{3})=-1\frac{2}{3}\\\\-1\frac{4}{5}-(-2\frac{7}{8})=-1\frac{4}{5}+2\frac{7}{8}=-1\frac{32}{40}+2\frac{35}{40}=2\frac{35}{40}-1\frac{32}{40}=1\frac{3}{40}\\\\-3\frac{3}{8}-\frac{7}{8}=-(3\frac{3}{8}+\frac{7}{8})=-3\frac{10}{8}=-3\frac{5}{4}=-4\frac{1}{4}\\\\4\frac{3}{4}-(-1\frac{1}{12})=4\frac{9}{12}+1\frac{1}{12}=5\frac{10}{12}

6 0
3 years ago
The sum of the lengths of any two sides of a triangle must be greater than the third side. if a triangle has one side that is 11
vfiekz [6]
2a+2a-1>11, a>3, b=2a-1
6 0
3 years ago
The diameter of a merry-go-round is 63 feet. Each person gets to make 23 rounds per ride. How far does each person ride?
xenn [34]
Calculate the circumference of the circle, and multiply it by 23.

C = pi * d

C = 3.14 * 63 ft =197.82 ft

23 * C = 23 * 197.82 ft = 4549.86 ft
7 0
3 years ago
Does distraction and/or amount of details affect the ability of people to make good decisions? In this fictitious scenario, rese
makkiz [27]

Answer:

Result:

Research Scenario: Does distraction or amount of details affect the ability of people to make good decisions?

In this fictitious scenario, researchers used a mixed design. Thirty participants were split into two groups – No Distraction or Distraction (n=15 per group). All participants were given TWO scenarios based on amount of details (4 or 12), and were asked to make an objective decision at the end of each scenario. Objective decision was the dependent variable and was quantified numerically using an interval scale of measurement.

Assume the data is parametric. Select and conduct the most appropriate statistical test to determine whether distraction or amount of details affect people’s ability to make good decisions.

Let level of significance = 0.05.

Excel used for calculations:

[Find the 4 attachments]

To test the distraction affect people’s ability to make good decisions, Calculated F= 35.2851, P=0.0000 which is greater level of significance 0.05 level. We conclude that distraction affect people’s ability to make good decisions.

To test the amount of details affect people’s ability to make good decisions, Calculated F= 64.1963, P=0.0000 which is greater level of significance 0.05 level. We conclude that amount of details affect people’s ability to make good decisions.

To test the interaction between distraction and amount of details , Calculated F= 1324.9978, P=0.0000 which is greater level of significance 0.05 level. We conclude that interaction is significant.

6 0
4 years ago
Find the missing side<br><br> 5<br> 1.3<br> 6.2<br> 8.2
zimovet [89]

Answer:

I think it is 1.3

Step-by-step explanation:

8 0
3 years ago
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