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MatroZZZ [7]
3 years ago
12

In how many ways can 4 singers be selected from 10 who came to an audition?

Mathematics
1 answer:
cricket20 [7]3 years ago
5 0
I believe the answer is 5040
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Solve the simultaneous equations <br> 2x+3y=13<br> 4x-y=-2
kherson [118]
From eq1 ,
2x = 13-3y
x = 6.5-1.5y (eq 3)
sub eq 3 into eq2,
4(6.5-1.5y)-y=-2
26-6y-y=-2
-6y-y=-2-26
-7y=-28
7y=28
y=4 ( eq 4 )
sub eq4 into eq3 ,
x=6.5-1.5(4)
x=6.5-6
x=0.5


4 0
3 years ago
Please helpppppppp<br><br> If you don’t know it don’t answer please
vladimir2022 [97]

Answer:

x=36

y=72

Step-by-step explanation:

I didnt do this type of problem in a while but Im pretty sure its correct

6 0
3 years ago
A boat is heading towards a lighthouse, whose beacon-light is 126 feet above the water. From point AA, the boat’s crew measures
vredina [299]

Using the slope concept, it is found that the distance from point A to point B is of 887 feet.

<h3>What is a slope?</h3>

The slope is given by the <u>vertical change divided by the horizontal change</u>.

It's also the tangent of the angle of depression.

In this problem, the vertical change is of 126 feet.

At point A, the angle is of 6º, while the horizontal position is of x_A, hence:

\tan{6^\circ} = \frac{126}{x_A}

x_A = \frac{126}{\tan{6^\circ}}

x_A = 1198.8

At point B, the angle is of 22º, while the horizontal position is of x_B, hence:

\tan{22^\circ} = \frac{126}{x_B}

x_B = \frac{126}{\tan{22^\circ}}

x_B = 311.9

Hence, the distance in feet is of:

d = x_A - x_B = 1198.8 - 311.9 \approx 887

More can be learned about the slope concept at brainly.com/question/18090623

6 0
2 years ago
Question 8.am I correct I got B
Lyrx [107]
According to the options given yes
4 0
4 years ago
Find the gradient of the line segment between the points (-4,2) and (4,5).
aleksklad [387]

Answer:

Gradient is = 0.375

Step-by-step explanation:

Rise = 3

Run = 8

8 0
3 years ago
Read 2 more answers
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