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mezya [45]
3 years ago
12

How many combinations of 4 students can a teacher choose from 30 students? A. 27,405 B. 120 C. 657,720 D. 810,000

Mathematics
1 answer:
GarryVolchara [31]3 years ago
6 0

the answer is a. when a when u add it all up the answer you will get is a

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Help me pleasee i need help this is my final btw
Molodets [167]

Answer:

12 sq units

Step-by-step explanation:

height = 3

length = 4

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5 0
3 years ago
The diameter of Circle terminates on the circumference of the circle at​ (3,0) and (3,−7).. Write the equation of the circle in
Verdich [7]

Step-by-step explanation:

that means the center of the circle is exactly in the middle between the 2 points.

and since both points have the same x value (so, the diameter here is a vertical line), it is ready to get the y value of the middle : (-7 - 0) / 2 = -3.5

so, the coordinates of the center are (3, -3.5).

and that makes the standard circle equation

(x - h)² + (y - k)² = r²

to

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7 0
2 years ago
"If A, then B" is the form of a<br> statement.
Allisa [31]

<em>Answer:</em>

<em>Hello! </em>

<em>__________________</em>

<em>"If A, then B" is the form of a statement then it is conditional statement.</em>

<em>Hope this helped you!</em>

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3 0
3 years ago
Help me find the arc length of this. Thank you.
BabaBlast [244]

The red chord is a diameter of the circle, so the length of the blue arc is half the circle's circumference.

The circumference of a circle with diameter d is \pi d, so the circle has circumference 8\pi, and so the arc has length 4\pi.

4 0
3 years ago
Given that x= -3, what is the value of 2ײ - x + 5?​
Roman55 [17]

Answer:

26

Step-by-step explanation:

2(9)-(-3)+5

2(9)+3+5

18+8

26

3 0
3 years ago
Read 2 more answers
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