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Salsk061 [2.6K]
3 years ago
9

If Sine (x) = two-fifths and tan(x) > 0, what is sin(2x)?

Mathematics
2 answers:
julsineya [31]3 years ago
8 0

Answer:

B

Step-by-step explanation:

edg 2021

ElenaW [278]3 years ago
4 0

B) \frac{4\sqrt{21}}{25}

Correct on Edge

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PLEASE HELP Meeeeeeeeeeeeeeeeee
klemol [59]
The answer is A.Use a compound interest calculator. Multiple sites to use. For me, I had to use my head for a while
3 0
4 years ago
Which variable expression represents the word phrase? the sum of 12 and the quotient of 9 and a number
iris [78.8K]
"Sum" tells us it's an addition problem:

One term is 12 and the other is 9/x

SO

The expression is:
12+9/x
6 0
4 years ago
Read 2 more answers
The ratio of boys to girls in a class is 3:5. There are 40 students in the class. How many students are girls?
AnnyKZ [126]

Step-by-step explanation:

3+5=8

40÷8=5

5x5=25 girls

5x3=15

5 0
3 years ago
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A map of a rectangular park has a length of 4 inches and a width olo and a width of 6 inches. It uses a scale of 1 inch for ever
Zielflug [23.3K]

Answer:

The actual area of the park is 21,600 miles square.

Step-by-step explanation:

<u>Step 1: Calculate the area of the park</u>

<em>Area of rectangle = Length x width</em>

Length = 4 inches

Width = 6 inches

Scale factor is given as, 1 inch = 30 miles.

So, converting the length and width in miles by using the scale factor, we get

Length = 4 * 30 = 120 miles

Width =  6 * 30 = 180 miles

The formula of finding the area of an rectangle is:

<em>Area = length x width</em>

By putting the values in equation, we get

Area = 120 x 180

Area = 21,600 miles square

Therefore, the actual area of the park is 21,600 miles square.

8 0
4 years ago
A bathtub contains 12 gallons of water. With these 12 gallons, the bathtub is only 30% full. How many gallons of water can the b
Pachacha [2.7K]

Answer:

40 gallons

Step-by-step explanation:

Let the number of gallons that would completely fill the bathtub be represented by N.

Since 12 gallons of water gives 30% of the number of gallons to fill the bathtub, then;

30% of N = 12

\frac{30}{100} x N = 12

30N = 12 x 100

30N = 1200

divide both sides by 30,

N = \frac{1200}{30}

   = 40

The number of gallons that would completely fill the bathtub is 40 gallons.

6 0
3 years ago
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