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Lostsunrise [7]
3 years ago
9

What is the value of x?Enter your answer in the box.​

Mathematics
2 answers:
drek231 [11]3 years ago
8 0

Hey there! :)

Answer:

98°

Step-by-step explanation:

The polygon shown contains 7 sides. Therefore:

Use the sum of interior angles formula to derive the sum of all of the angles:

(n-2)180 = sum

(7-2)180 =

5(180) = 900°

Subtract all of the angles shown from the total sum to derive the value of x:

900 - 146 - 122 - 142 - 140- 110 - 142 = 98°

m∠x = 98°.

Nataly [62]3 years ago
6 0

Answer:

x = 98°

Step-by-step explanation:

We know that in a heptagon, there are 900°. <em>So</em>,

900 - (146 + 122 + 142 + 140 + 110 + 142)

We plug that into the calc and we should get 98 as our final answer!

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Calculate the difference scores for the following data from a repeated measures study. Conduct a repeated measures t-test at apl
Delicious77 [7]

Answer:

There is no difference as per statistical evidence.

Step-by-step explanation:

We calculate t statistic from the formula

t =difference in means/Std error of difference

Here n1 = n2

t = (x bar - y bar)/sq rt of s1^2+s2^2

Let treatment I =X = 34 41 38 29

     Treatment II Y = 39 48 35 36

                     X       Y    

Mean          35.50   39.50

Variance     81.00   105.00

H0: x bar = y bar

Ha: x bar not equal to y bar

(Two tailed test at 0.05 significant level)

N1 = 4 and N2 = 4

df=N1+N2-2 = 6

s1^2 = 81/3 =27 and s2^2 = 105/3 = 35

Std error for difference =

t = -1.02

p =0.348834

p>0.05

Since p value >alpha we accept null hypothesis.

Hence there is statistical evidence to show that there is no difference in the mean level of scores.  

6 0
3 years ago
Tim estimates that 60÷5.7 is about 10.Will the actual quotient be greater than 10 explain
Zepler [3.9K]
Well first you can do the problem. So take 60 divided by 5.7. When it is done it will come out to about 10.5263 which is a irrational number. So yes the quotient will be larger than 10.
Hope I helped!
8 0
3 years ago
5/2x+1/4=12 solve for x
aniked [119]

Answer:

4/5 (2x + 5) − 4 =1

4/5(2x +5) = 1 +4

4/5 (2x +5) = 5

2x + 5 = 5 / (4/5)

2x + 5 = 5 (5/4)

2x + 5 = 25/4

2x = 25/4 - 5

2x = 25/4 - 20/4

2x = 5/4

x = (5/4) / 2

x = (5/4) (1/2)

x = 5/8

x = 0.625

7 0
3 years ago
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To play his game, Charles must distribute 350 tokens, when there are 7 players. How many will he have to distribute for 11 playe
Rzqust [24]
First divide 350 with 7

350/7 = 50.

Each player gets 50 tokens.

Now there are 11 players.

Multiply 50 with 11

50 x 11 = 550

550 tokens are distributed for 11 players


hope this helps
4 0
3 years ago
Read 2 more answers
Mr North spent $144,00 to build a fence around the perimeter of bis vegetable garden.He paid $6.oo per yard for fencing a, Draw
DedPeter [7]
The perimeter of his fence is 2400 the steps i took to find this was i divided 14400 by 6 an i got 2400.  I can only think of one possible reason I hope the helps, Sorry
3 0
3 years ago
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