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Oksana_A [137]
4 years ago
9

Which of the following statements is true?

Mathematics
1 answer:
MakcuM [25]4 years ago
6 0

Answer:

e. All of these statements are true.

Step-by-step explanation:

The first statement is true because an experiment is actually the process by which an observation is made. Consider rolling a die. It is called an experiment because we observe which side of the die lands facing upwards and that number is noted.

The second statement is also true because a simple event is the one which can not be further decomposed into an event. (Compound events can be decomposed into simple events).

The third statement is also true that an event is the collection of one or more simple events. An event can contain either simple events of compound events which are basically a combination of two or more simple events.

Hence, we can say that <u>all the statements are true</u>.

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Q2. Calculate the area of the shaded region in the figure shown.<br>40°<br>12m<br>10m​
Anvisha [2.4K]

Answer:

Area of the shaded area = 60 m^2

Step-by-step explanation:

Remark

I don't think you need the 40 degrees for anything.

Formula

Area of Shaded part = area of the rectangle - area of the triangle

Solution

<u>Area of the Rectangle</u>

L = 12 meters

W = 10 meters

Area = 12 * 10

Area = 120 m^2

<u>Area of the triangle</u>

Area = 1/2 b * h

b = 12

h = 10

Area = 1/2 * 12 * 10

Area = 120/2 = 60

Area of the shaded area

120 - 60 = 60

3 0
3 years ago
Multiply (2x-5)(3x^2-4x+2)
fgiga [73]

Answer:

\large\boxed{(2x-5)(3x^2-4x+2)=6x^3-23x^2+24x-10}

Step-by-step explanation:

\text{Use FOIL:}\ (a+b)(c+d)=ac+ad+bc+bd\\\\(2x-5)(3x^2-4x+2)\\\\=(2x)(3x^2)+(2x)(-4x)+(2x)(2)+(-5)(3x^2)+(-5)(-4x)+(-5)(2)\\\\=6x^3-8x^2+4x-15x^2+20x-10\\\\\text{combine like terms}\\\\=6x^3+(-8x^2-15x^2)+(4x+20x)-10\\\\=6x^3-23x^2+24x-10

7 0
3 years ago
Ellen purchased a dishwasher, which cost $315 before the 9.22% sales tax. She used the machine an average of 10 times per week f
Natasha2012 [34]
Given:
Cost of dishwasher : 315 before sales tax
sales tax : 9.22%

Total cost = 315 * 1.0922 = 344.043

Average of 10 uses per week for the next 6 years before replacing it.
There are 52 weeks in a year.

10 uses per week * 52 weeks per year * 6 years = 3120 average uses

cost for water = 0.09 ; cost for electricity = 0.13 ; total cost per use = 0.22

0.22 * 3120 = 686.40 cost of use

purchase cost =    344.043
cost of use      =    <u>686.40</u>
lifetime cost     1,030.443
5 0
3 years ago
Read 2 more answers
Define radiussssssssss
jolli1 [7]

Answer:

a straight line from the center to the circumference of a circle .

Step-by-step explanation:

please give brainliest

8 0
3 years ago
I need help on this math exam please correct answers only
Alinara [238K]
a^2 = c^2 - b^2 = 64 - 4 =60

So a = the square root of 60.
8 0
3 years ago
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