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2 years ago

A, B, C and D are points on a circle, centre O.

Mathematics

1 answer:

Gelneren [198K]2 years ago

5 0

Answer:

X=0,2

Step-by-step explanation:

Będzie x dla e polecam źle jest xdd

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A scale model of a building has a height of 18 inches and a length of 14 inches. The height of the real building is 360 feet. Wh

ValentinkaMS [17]

280 because 360 divided by 18 is 20. 20 times 14 is 280. hope this helps

4 0

3 years ago

Read 2 more answers

A bag contains a number of marbles of which 35 are blue, 10 are red and the rest are

photoshop1234 [79]

Answer:

Y = 45*p(y) / (1 - p(y)) if I knew what p(y) is, we can find how many yellow marbles there are. p(y) = probability of choosing yellow.

Step-by-step explanation:

Total marbles = 35 + 10 + yellow

If probability of choosing yellow =p(y) = yellow/Total

p(y) = Y/(35 + 10 + Y)

Solve for Y,

p(y)*(35 + 10 + Y) = Y

45*p(y) + p(y)*Y = Y

45*p(y) = Y - p(y)*Y

Y = 45*p(y) / (1 - p(y))

7 0

3 years ago

Please help ASAP!

Taya2010 [7]

Answer:

I think

Step-by-step explanation:

If you chose Isosceles Right Triangle Reflection to prove ASA Congruence,. You can use the distance formula to show congruency for the sides. To show an angle is congruent to a corresponding angle, use your compass and straightedge.

8 0

3 years ago

ten selected students took a. altitude test out of the total score of 100 these students scored 60,50,50,70,40,80,65,55,50 and 9

ira [324]

<u>Answer:</u>

• mean = 61

• mode = 50

• median = 57.5

<u>Step-by-step explanation:</u>

• The mean is calculated by adding all the values together, and dividing the result by the number of values.

∴ mean = $\frac{60 + 50 + 50 + 70 + 40 + 80 + 65 + 55 + 50 + 90}{10}$

⇒ mean = $\frac{610}{10}$

⇒ mean = 61

• The mode of a set of values is the value that is the most common (has highest frequency) among them.

50 is the most common value.

∴ mode = 50

• The median is the middle-value of a set of ordered values.

∴ We have to first rearrange the set:

⇒ 40, 50, 50, 50, 55, 60, 65, 70, 80, 90

Now we need to find the middlemost value:

Since we have 10 values, which is an even number, we have to use the formula:

median = $\frac{(n/2)^{th} \space\ term \space\ + \space\ [(n/2) + 1]^{th} \space\ term }{2}$

where n is the number of values.

∴ median = $\frac{(10/2)^{th} \space\ term \space\ + \space\ [(10/2) + 1]^{th} \space\ term }{2}$

⇒ median = $\frac{5^{th} \space\ term \space\ + \space\ 6^{th} \space\ term }{2}$

The 5th and 6th terms in our ordered series are 55 and 60 respectively.

∴ median = $\frac{55 + 60}{2}$

⇒ median = 57.5

5 0

2 years ago

Does 3y-x=6 have a slope of -3

inessss [21]

Answer:

Step-by-step explanation:

y=mx+b

applied to the information given:

3y=x+6,

divide both sides by 3

y=1/3x+2

slope is 1/3

8 0

3 years ago