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3 years ago

Which value cannot represent the probability of an event occurring?

Mathematics

2 answers:

DIA [1.3K]3 years ago

4 0

Answer:

3/2

Step-by-step explanation:

Since probability uses percentage, and percentage cannot go over 100, 3/2 is the only answer that could be correct.

crimeas [40]3 years ago

3 0

Answer:

3/2

Step-by-step explanation:

It can not be more then 1.

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Segment BD is an altitude of triangle ABC. Find the area of the triangle.

Sever21 [200]

Answer: The correct option is A, i.e., 7.5.

Explanation:

It is given that ABC is a triangle and BD is an altitude.

Since BD is an altitude, therefore the height of the triangle is BD and the base of the triangle is AC.

The distance formula to find the distance between two points is,

$D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

First, we find BD, where B(-1,4) and D(2,4).

$BD=\sqrt{(2+1)^2+(4-4)^2}=\sqrt{9} =3$

So, the height of the triangle is 3.

Now, we find the value of AC, where A(2,1) and C(2,6).

$AC=\sqrt{(6-1)^2+(2-2)^2}=\sqrt{25} =5$

So, the base of the triangle is 5.

The formula to find the area of a triangle is,

$A=\frac{1}{2}\times {\text{base}}\times {\text{height}}$

$A=\frac{1}{2}\times 5\times 3=\frac{15}{2}=7.5$

Therefore, the area of the triangle is 7.5 unit square and the correct option is A.

6 0

3 years ago

Read 2 more answers

a shopkeeper had 60 kg apples with him in the morning of a particular day during the day time he could sell only 43 kg 700 gram.

yan [13]

He has 16 kg 300 grams of apples left with him.

Explanation:
60 kg = 60 x 1000 = 60000 grams
43 kg 700 grams = 43700 grams

Left = 60000 - 43700 = 16300 grams = 16 kg 300 grams

3 0

3 years ago

If (a+bi)^2=2abi, what must be the relationship between a and b? Show or explain your reasoning.

Klio2033 [76]

$(a+bi)^2 =(a+bi)(a+bi)= a^2 +2abi+b^2 i^2 \\ \\ i^2 = -1 \\ \\ (a+bi)^2 = a^2-b^2 +2abi = 2abi \\ \\ a^2 -b^2 = 0 \\ \\ a^2 = b^2 \\ \\ a = b$

For the statement to be true, 'a' and 'b' must be equal

*First expand the binomial using FOIL, then set it equal to whats given "2abi".
Then you can find the relationship between a and b.

6 0

4 years ago

11.) Mrs. Collins is buying supplies for her classroom. Pencils cost

ki77a [65]

Answer:

the total cost will be $14

Step-by-step explanation:

a) 0.05p + 0.45f

b) 0.05(100) + 0.45(20)=

5+9

4 0

3 years ago

9y+11z+7y−4z

slava [35]

Answer is 16y + 7z

9y+11z+7y−4z

=9y+11z+7y+−4z

Combine Like Terms:

=9y+11z+7y+−4z

=(9y+7y)+(11z+−4z)

=16y+7z

7 0

3 years ago