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nydimaria [60]
3 years ago
13

Please answer me now in two minutes

Mathematics
1 answer:
AleksandrR [38]3 years ago
3 0

Answer:

60

Step-by-step explanation:

let's say the angle is x

tan x=2√21/2√7=1.73205...

tan inverse of it = 60

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A city has a population of 230,000 people. Suppose that each year the population grows by 9%. What will the population be after
zloy xaker [14]

<u>Answer:</u>

<h2><u>385,733</u></h2>

Step-by-step explanation:

If it grows by 9% each year, you can simply do the current population times 109%. Because its an additional 9%.

230,000*109% = 250,700

After the first year, there is a population of 250,700 people.

250,700*109% = 273,263

After the second year, there is a population of 273,263 people.

273,263*109% = 297,856.67

After the third year, there is a population of 297,856.67 people.

297,856.67*109% = 324,663.77

After the fourth year, there is a population of 324,663.77 people.

324,663.77*109% = 353,883.509

After the fifth year, there is a population of 353,883.509 people.

353,883.509*109% = 385,733.025

After the sixth year, there is a population of 385,733.025 people

Round it up to 385,733 people.

7 0
2 years ago
There are 57 students in the orchestra and twice that number in the band. There are 18 boys and 28 girls in the choir. If each s
Klio2033 [76]
There are 217 students total
7 0
3 years ago
Read 2 more answers
Please can u give me this answer ☹️
Jlenok [28]

Answer:

the second one

Step-by-step explanation:

Hello There!

The area of a triangle can be found using this formula

A = \frac{1}{2} (a+b)h

where a and b = bases and h = height

The trapezoid shown has the following dimensions

top base = 9cm

bottom base = 14 cm

height = 12 cm

slant height = 13 cm

using this information, we plug in the values into the formula

So A = \frac{1}{2} (9+14)12

the equation we created matches the 2nd equation therefore the second one is your answer

7 0
3 years ago
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The ratio of boys to girls in math classes is 3.5. If there are 130 girls in these classes, how many boys must there be?
dsp73

Answer:

<h3><u>Required Answer</u><u>:</u><u>-</u></h3>

The ratio of boys and girls =3:5

Let

Number of boys=3x

Number of girls =5x

  • According to the question Numbers of girls=130

{:}\longrightarrow\sf 5x=130

  • Now interchange both sides and get x

{:}\longrightarrow\sf x={\dfrac {130}{5}}

{:}\longrightarrow\sf x=26

<h3>Now </h3>

The number of boys=3x

=3×26=78

\thereforeNumber of boys is 78.

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2 years ago
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