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trasher [3.6K]
3 years ago
10

Please someone help!

Mathematics
1 answer:
babymother [125]3 years ago
8 0

Answer:

16

Step-by-step explanation:

tan^-1 (2.1/ 7.2) = 16 .26...

You might be interested in
Values of ab= 3x+10 and cd=5xn
avanturin [10]

Step-by-step explanation:

AB = CD

3x + 10 = 5x

2x = 10

x = 10/2

x = 5 ans

AB = CD = 25 ans

5 0
3 years ago
Which equation correctly uses point (–2, –6) to write the equation of this line in point-slope form? Y – 6 = y minus 6 equals St
GenaCL600 [577]

Answer:

Part 1) y+6=\frac{2}{5}(x+2)

Part 2) y+6=\frac{5}{2}(x+2)

Step-by-step explanation:

The equation of the line in point slope form is

y-y1=m(x-x1)

we're going to analyze two cases

<em>First case</em>

Point\ (-2,-6)

slope\ m=\frac{2}{5}

substitute

y+6=\frac{2}{5}(x+2)

therefore

y plus 6 equals StartFraction 2 Over 5 EndFraction left-parenthesis x plus 2 right parenthesis

<em>Second  case</em>

Point\ (-2,-6)

slope\ m=\frac{5}{2}

substitute

y+6=\frac{5}{2}(x+2)

therefore

y plus 6 equals StartFraction 5 Over 2 EndFraction left-parenthesis x plus 2 right parenthesis

5 0
3 years ago
Read 2 more answers
The answer step by step
vivado [14]

Remember:

-When multiplying numbers with decimals just forget about the decimals for a second and pretend you are multiplying a 3 digit number times a 2 digit number.

-one digit at a time. Multiply going from right to left.

First:

-Multiply the 3 with the top numbers.

-Pretend you are seeing this:

5.72 (3)

- 2*3=6. 7*3=21. (carry the 2). 5*3 +2=17. (leave the 1).

Second:

-write below and move a digit to the left.

-pretend you are seeing this: 5.72(6).

- 2*6 =12. (carry the 1). 7*6 +1=43. (carry the 4) 5*6+4=34. (leave the 3).

Third: since in the problem the decimal is placed in the hundredths only once, place the decimal in the hundredths as your solution.

Your solution should be 360.36

7 0
4 years ago
A circular cloth with a diameter of 20 inches is placed on a circular tray with a diameter of 24 inches. What fraction of the tr
son4ous [18]

Answer:

the fraction of surface that is not covered is 11/36

Step-by-step explanation:

To do this we first have to calculate the two surfaces

s = π * r^2

π = 3.14

r = d/2

d1 = 20

d2 = 24

r1 = 20/2

r1 = 10

r2 = 24/2

r2 = 12

s1 = π * r1^2

s1 = 3.14 * 10^2

s1 = 3.14 * 100

s1 = 314

s2 = π * r2^2

s2 = 3.14 * 12^2

s2 = 3.14 * 144

s2 = 452.16

to know the part that is not covered we simply do the s1 over the s2 and we subtract that from 1

s1 / s2 =

314 / 452.16 =

25/36

1 we subtract this

1 - 25/36 = 11/36

the fraction of surface that is not covered is 11/36

3 0
3 years ago
18=x+5x im confused on this problem
DaniilM [7]
18= +5+x
x=3
If you do 3•5, you get 15.
Then do 3+15, you get 18.
3 0
4 years ago
Read 2 more answers
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