Answer:
10a: △ABC is an Equilateral triangle with all acute angles.
10b: △BCD is A scalene triangle with all acute angles.
10c: △BDE is An Isosceles triangle with one obtuse angle.
Step-by-step explanation:
10) Looking at the diagram at the bottom left;
- △ABC has 3 equal internal angles and as such, it means it will have 3 equal angles.
Thus, we can classify it as; Equilateral triangle with all acute angles.
- △BCD has 3 unequal angles. Thus, it's 3 sides are not equal. Also all the angles are less than 90°.
We can classify it as;
A scalene triangle with all acute angles
- △BDE has 2 equal angles and one angle greater than 90°. This means it has 2 equal sides.
Thus, we can classify it as;
- An Isosceles triangle with one obtuse angle.
Answer:
84
Step-by-step explanation:
women=x
daughter=y.
x=2y.
x-21=3(y-21).
2y-21=3y-63.
42=y.
x=84.
Hope this helps plz hit the crown :D
Answer:
x=25
Step-by-step explanation:
2x+40=90
90-40=50
50 divided by 2 is 25
x=25
Answer:
Step-by-step explanation:
<u>The sum of -1 3/4 and 2 1/2:</u>
- - 1 3/4 + 2 1/2 =
- 2 1/2 - 1 3/4
<u>The difference between 2 1/2 and 1 3/4:</u>
<u>This is same as well as:</u>
A sample in which each individual in the population has an equal chance to be selected is a "simple random sampling".
<h3>
What is simple random sampling?</h3>
A subset of such a statistical population called a simple random sample is one where each member has an equal chance of being chosen. A straightforward random sample is intended to offer an objective depiction of a group.
Some key features of simple random sampling are-
- A straightforward random sample, where each participant has an equal chance of being selected, selects a tiny, random piece of the total population that will represent the full data set.
- Using techniques like lottery or random draws, researchers can generate a straightforward random sample.
- If a sample does not precisely reflect the population it really is intended to represent, there may have been a sampling error.
To know more about simple random sampling, here
brainly.com/question/13219833
#SPJ4
