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Anton [14]
2 years ago
13

Can someone help me with math, please? No links 100 points

Mathematics
2 answers:
kozerog [31]2 years ago
6 0
Congruent because they are the same degree
Cerrena [4.2K]2 years ago
4 0
Congruent because both angles are the same
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Select the correct answer.
SVEN [57.7K]
Select the correct answer.
If a = 0.3 and b =0.5, what is the value of a+b?
A.8/10
B.8/9
C.80/99
D.88/100

Hey Love!<3 It would be

A.8/10
3 0
2 years ago
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Fun question for 35 points, 2/3 and 5/8, multiply and explain...
Arlecino [84]
5/12 converted. decimal would be .416666667
5 0
3 years ago
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Questions:
Nimfa-mama [501]
Bread - 3 choices
Meat - 5 choices
Veggies - 7 choices

1br 1mt 1vg = 3×5×7 = 105

1br 2mt 3 vg = 3×5×4×7×6×5 =12600

7vg 1br = 3×1 = 3
6 0
3 years ago
The 20 tallest buildings in the world have an average height of 1,667.25 feet, with a standard deviation of 318.31 feet. The Zif
valentina_108 [34]

Answer:

Marina, Wuhan center, Zifeng Tower , Shangai Tower

Step-by-step explanation:

Using the z-scores of the Shangai tower and the Marina, we can calculate their heights

Mathematically, the z-score or standard score can be calculated as follows

Zscore =  X - μ/σ

where σ and μ represents the standard deviation and the population mean respectively.

For Shaghai Tower ;

1.27 = (X - 1667.25)/318.31

318.31 × 1.27 = X - 1667.25

404.25 = X - 1667.25

X = 1667.25 + 404.25 = 2071.50

The height of the Shaghai Tower is 2071.50 feet

For Marina, we use the same procedure;

-0.84 = (X - 1667.25)/318.31

318.31 × -0.84 = X - 1667.25

-267.38 = X - 1667.25

X = 1667.25 - 267.38 = 1399.87

The height of Marina building is 1399.87

Listing the buildings' height in ascending order we have; Marina, Wuhan center, Zifeng Tower , Shangai Tower

The reasoning behind this can be mathematically explained in terms of the z-score. The standard score of the heights of the building give us an insight as to how tall the buildings can be.

Since they are in the same population i.e building heights, the higher the z-score, the higher the height of the building. A positive z-score indicates a height taller than the average while a negative z-score indicate a height lower than the average height which is the mean

6 0
3 years ago
An equation is shown below: 5(2x-8) +15 = -15 write the steps you will use to solve the equation and explain each step
faust18 [17]

Answer:

5(2x-8)+15=-15

10x-40+15=-15

10x-25=-15

    +25   +25 (add 25 to both sides)

____________

10x=10

divide by 10 on both sides

x=1

6 0
3 years ago
Read 2 more answers
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