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lesantik [10]
3 years ago
13

(PLZ help)

Mathematics
2 answers:
Alina [70]3 years ago
8 0
1. Is 46.7
2. x =57
3. 15.22
4. 14 + j = 28
5. 
Studentka2010 [4]3 years ago
7 0

2=57 because74-17 is 57

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A dog has a 25 ft leash attached to a corner where a garage and fence meet. When the dog pulls the leash tight and walks from th
dalvyx [7]

Answer: 170^{\circ}

Step-by-step explanation:

Given

The dog has a 25 ft leash

Arc length is 74.3 ft

Arc length is given by

l=\dfrac{\theta }{360^{\circ}}\times 2\pi r

here, r=25 ft

l=74.3 ft

Put the values

\Rightarrow 74.3=\dfrac{\theta }{360^{\circ}}\times 2\pi \times 25\\\\\Rightarrow \theta =170.2^{\circ} \approx 170^{\circ}

The measure of the angle is  170^{\circ}

7 0
2 years ago
How did astronomer Yi Xing (A.D. 683-727) contribute to the development of mathematics in china?
SSSSS [86.1K]

Answer:

Yi Xing invented the astronomical clock and introduced some new methods of interpolation in mathematics.

Step-by-step explanation:

Yi Xing was both an astronomer and a mathematician during the era. He invented the astronomical clock which was more accurate than the initial water and Sun's clock in use.

Furthermore, Yi Xing also discovered some new methods of interpolation in mathematics of which the meaning and interpretation became controversial. Interpolation is a method majorly in mathematics that can be used to estimate a value of a function from its discrete values. It involves first order differences and second order differences.

Also, Yi Xing was able to design a calendar in A.D. 727.

4 0
3 years ago
Please help :) also please don’t take advantage of the points.
Gnoma [55]

Answer:

C. 50

Step-by-step explanation:

180 - (70 + 60)

180 - 130

50, so C

<em>Hope that helps!</em>

<em>-Sabrina</em>

6 0
2 years ago
Please help me with​ this question!!!\<br> please please
strojnjashka [21]
The mean book rating will decrease

Add all the numbers together:
5 + 5 + 6 + 7 + 7 + 7 + 7 + 8 + 8 + 8 + 9 + 9 + 10 + 10 + 10 + 10 + 10= 136

divide the total with the total amount of numbers

136/17 = 8

Now add all the numbers again WITH the one

5 + 5 + 6 + 7 + 7 + 7 + 7 + 8 + 8 + 8 + 9 + 9 + 10 + 10 + 10 + 10 + 10 + 1= 137

Divide the total amount with the amount of numbers there are

137/18 = 7.61

7.61 < 8

The mean book rating will decrease by 0.39

hope this helps
5 0
3 years ago
Three times a number is equal to say when 5 is added to to the number .find the number.​
sladkih [1.3K]

Answer:

2.5

Step-by-step explanation:

3x=x+5

2x=5

x=5/2 or x=2.5

5 0
3 years ago
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