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3 years ago

1. VIDEOTAPES Lyle is putting his

Mathematics

2 answers:

Musya8 [376]3 years ago

7 0

12 divided by 1.5 equals 8 tapes… i have the same answer as the other person

andrezito [222]3 years ago

5 0

Answer:

12 divided by 1.5 = 8 tapes

Hope this helps you

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Calculate the variance of the following set of data. 3, 33, 303, 233, 3, 73, 83, 63

andrew-mc [135]

Answer:

12083.929

Step-by-step explanation:

First step: find the mean of the data.

mean = 3+33+303+233+3+73+83+63

= 794

= 99.25

Second step: Now we calculate each dog's difference from the Mean.

Example : 3–99.25=96.25

Answer: (-96.25)+(-66.25)+203.75+133.75+(-96.25)+(-26.25)+(-16.25)+(36.25)

Third step: To calculate the Variance, take each difference, square it, and then average the result.

s² = (-96.25)²+(-66.25)²+203.75²+133.75²+(-96.25)²+(-26.25)²+(-16.25)²+(36.25)²

8–1

= 9264.063+4389.063+41514.063+17889.063+9264.063+689.063+264.063+1314.063

= 84587.5

= 12083.929

Variance Formula:

Variance = s² =Σ(xi− x )²

n−1

4 0

3 years ago

Read 2 more answers

Pls help me with this question and pls don't answer if you don't know. thank you,

polet [3.4K]

Answer:

I apologize if this was poorly explained. The explanation for each is below the angle.

Since these triangles are in a rectangle, The top and bottom triangles are congruent, and the left and right triangles are congruent. All 4 triangles are also Isosceles. (Two equal sides/angles)

m<1= 59

(Left and right triangles are congruent)

m<2=31

(Top and bottom triangles are congruent)

m<3= 59

(Directly across from the other 59)

m<4=31

(Each of the rectangles corner angles totals to 90 degrees, therefore making this angle 31 degrees.)

m<5=31

(Since the triangles are isosceles, this angle is also 31)

m<6= 59

(Since m<5 is 31, this angle is 59.)

m<7=118

{(Two other angles in the triangle) 31+31= 62 180-62= 118)}

m<8=62

{(Two other angles in the triangle)59+59= 118. 180-118= 62}

m<9=62

(This angle and m<8 are congruent.)

m<10=118

(This angle and m<7 are congruent.)

m<11=31

(Same reason as m<4)

I hope this helps!

8 0

3 years ago

Solve the compound inequality -4<3p-7<5. and graph

Evgen [1.6K]

Negative four times 3p is -12p so then -12p-7 <5. Then add 7 to five and get -12p<12. Divide by -12, change direction of symbol because you are dividing by a negative and get p>-1.

6 0

4 years ago

Suppose the u.s. president wants to form a special panel to study the national energy crisis and make recommendations. he will p

makkiz [27]

To solve this problem, we will use the formula for permutation. A permutation is where the order of the things in the set matter.
Solution:
₁₂P₅ = $\frac{12!}{7!}$ = 12 x 11 x 10 x 9 x 8 = 96,040 different ways that can be made.

4 0

3 years ago

What is the measure of angle X? Enter your answer in the box

LuckyWell [14K]

So all angles within a triangle should add up to 180, 102+31= 133 then subtract. 180-133=47
X-47

5 0

3 years ago