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AleksandrR [38]
3 years ago
6

Find the value of tan(B) please help quickly

Mathematics
1 answer:
elena55 [62]3 years ago
4 0

Answer:

it is 4/3

Step-by-step explanation:

because tan(B) = opposite/adjacent

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or Solve this system of equations by graphing. First graph the equations, and then type the solution. y= 7/4 x–3 y=x
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Answer:

y =  \frac{7}{4} x - 3 \\ y = x \\ y = \frac{7}{4} y - 3 \\ y - \frac{7}{4} y =  - 3 \\  -  \frac{3}{4} y =  - 3 \\ 3y = 12 \\ y =  \frac{12}{3}  \\ y = 4 = x

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Find the surface area of the cube (5.1cm tall)
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156.06cm

Step-by-step explanation:

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Divide 12.73 by 8 and round off correct to two decimal places​
n200080 [17]

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3 years ago
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The mass of a proton is approximately 1.67 x 10−24, and the mass of an electron is approximately 9.11 x 10−28. Find the approxim
nataly862011 [7]

Answer:

≈ 1833

Step-by-step explanation:

To find ratio of proton mass to electron mass, we have to divide.

The numbers are given in <em>scientific notation</em>.

Let a number be  a*10^b and another be  c*10^d, when we divide, we will follow the rule shown below:

\frac{a*10^b}{c*10^d}=(\frac{a}{c}*10^{b-d})

Now, we use the information given to find the ratio:

\frac{1.67*10^{-24}}{9.11*10^{-28}}\\=(\frac{1.67}{9.11}*10^{-24--28})\\=0.1833*10^4

This means we can find the number by taking 4 decimal places to the right, so that would becomes:

0.1833*10^4=1833

The approximate ratio is 1833 [mass of proton is around 1833 times heavier than mass of electron]

7 0
3 years ago
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Help me please asap
abruzzese [7]

Answer:

So the right answer is none

Step-by-step explanation:

-6≤1+3x

3x≥-7

x≥-2,33

-2,33>-5>-6>-11

so none of those are bigger then -2,33 and x is bigger then -2,33

3 0
2 years ago
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