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katovenus [111]
3 years ago
6

A box contains 10 pins 3 are blue and 7 are green. Two pins are taken out the box without replacement. Work out the probability

that both pins are the same colour
Mathematics
1 answer:
velikii [3]3 years ago
5 0
This is a guess but 5/10 idk rlly know but sorry if I’m wrong
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The height to the base of an isosceles triangle is 12.4m, and its base is 40.6m. What are the measurement of the angles of the t
Vsevolod [243]

Answer:

  • angles: 31.42°, 31.42°, 117.16°
  • legs: 23.79 m

Step-by-step explanation:

The base angles can be found from the definition of the tangent function:

  tan(base angle) = height/(half-base length)

  base angle = arctan(12.4/20.3) ≈ 31.418°

Then the apex angle is double the complement of this:

  apex angle = 2(90° -31.418°) ≈ 117.164°

The base angles are 31.42°, and the apex angle is 117.16°.

__

The leg lengths can be computed from the Pythagorean theorem applied to the altitude and the half-base length.

  leg length = √(12.4² +20.3²) = √565.85 ≈ 23.789 . . . . meters

The length of the legs is about 23.79 m.

5 0
3 years ago
Read 2 more answers
Given the points (3, 0) and (-1, -3), which of the statements below is true?
nalin [4]
Answer:
We know the x-intercept only

Explanation:
To answer this equation, we need to go through the options individually and use both points to determine if they are true or false.

• Option 1 - False
According to the the first point given, we know the x-intercept is (3, 0).

• Option 2 - True
We only know the x-intercept. It is (3, 0) which is the first point given. We do not know the y-intercept.

• Option 3 - False
We do not know the y-intercept. We only know the x-intercept. In order to know the y-intercept the second point given must include a zero as the x point. The second point give does not include a zero. It is (-1, -3).

• Option 4 - False
We do not know the y-intercept
8 0
3 years ago
(9 1/3 + 4 2/3) +7 - (-12)= <br><br> A: 2 and 5/8<br> B: -13 and 13/16<br> C: 14<br> D: 4
SSSSS [86.1K]

Answer:

BIL is the answer to that one day

7 0
3 years ago
4. Roger was growing plants for his science project. He measured the plants every day.
Zinaida [17]

Answer:

the answer could be 10/3 and decimal form is 3.3 and mixed form is 3 1/3 (i hope this helps sorry if I'm wrong!)

Step-by-step explanation:

5 0
3 years ago
PLEASE HELP !!! CORRECT ANSWER GETS BRAINLIEST!!!!​
shtirl [24]

Answer:

area of this circle: 490.6 inch²

Step-by-step explanation:

area of circle: π(radius)²

Here the diameter is given 25 inch, so the radius will be half: 25/2 → 12.5 in

using the formula:

3.14(12.5)²

490.625 inch²

490.6 inch²____rounded to nearest tenth.

8 0
2 years ago
Read 2 more answers
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