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KengaRu [80]
3 years ago
15

5. The complement of an angle is twice aslarge as the angle. Find the measure of theangle.​

Mathematics
2 answers:
nata0808 [166]3 years ago
8 0

Answer:

30° and 60°

Step-by-step explanation:

let angle be x and 2x

x+ 2x=90

3x=90

x=30

Therefore,

2x= 2*30= 60

Nikitich [7]3 years ago
7 0

Answer:

60 degrees

Step-by-step explanation:

60+60*2=180

pls give brainliest

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These marbles are placed in a bag and two
Marina86 [1]

Answer:

1/45

Step-by-step explanation:

P(Y,Y) = 2/10 x 1/9 which is 1/45 simplified

5 0
3 years ago
c.) The sonar of a navy cruiser detects a submarine that is 4000 feet from the cruiser. The angle between the water line and the
Kamila [148]

Answer:

2236.77 feets

Step-by-step explanation:

From the attached picture, we are to find x, which is the vertical depth of the submarine.

Using trigonometry based on the illustration in the diagram:

Sinθ = opposite / hypotenus

Sinθ = x (depth of submarine) / distance from ship (4000)

Hence,

Sinθ = x / 4000

θ = 34°

Sin34 = x / 4000

0.5591929 * 4000 = x

2236.7716 = x

Hence, depth of submarine = 2236.77 feets

7 0
3 years ago
In a newspaper, it was reported that the number of yearly robberies in Springfield in
ryzh [129]

Answer:

The number of robberies in 2014 is 108

Step-by-step explanation:

Here, we want to calculate the number of robberies in 2014

from the question, the robberies went down by 40%

Let the number of robberies in 2014 be x

Thus;

40/100 * 180

= 72

This means that the value it went down was by 72

Thus;

x = 180-72

x = 108

5 0
3 years ago
A researcher measures the IQ scores of a group of college students. What four things will the researcher use statistics for
Alik [6]

Answer:

1. IQ range

2. Frequency

3. Mean

4. Standard deviation and variance

Step-by-step explanation:

To use statistics the researcher must determine the standard deviation, mean and variance. He will need the following to calculate the mean:

1. The IQ score range and the frequency of the range.

To calculate the standard deviation and mean:

1. Need the mean and frequency of the IQ scores

Therefore the 4 things needed is:

1. IQ range

2. Frequency

3. Mean

4. Standard deviation and variance

7 0
4 years ago
Let ​f(x)= -5x+6. Find and simplify ​f(3n−5​). <br><br> f(3n-5)= ?
IRINA_888 [86]
We know that our function is f(x)=-5x+6; the only thing we need to find f(3n-5) is replace x with (3n-5) in our original function:
f(x)=-5x+6
f(3n-5)=-5(3n-5)+6

Now, lets simplify our function:
f(3n-5)=-15n+25+6
f(3n-5)=-15n+31

After simplify our function, we can conclude that f(3n-5)=-15n+31

5 0
3 years ago
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