I need help with this pleaseee
Answers
Answer:
9. obtuse isosceles
10. equiangular equilateral
For 10., it is also acute equilateral, but if you can pick only one answer, go with the answer above which is more descriptive.
Step-by-step explanation:
9.
Two sides are congruent. The third side is not congruent to the other two.
According to sides: isosceles triangle.
One angle is obtuse.
According to angles: obtuse triangle
10.
All sides are congruent.
According to side: equilateral triangle.
All angles are congruent, and each angle measures 60 deg. All angles are acute.
According to angles: equiangular triangle
According to angles: acute triangle.
both are the first answers
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Answers
Answers
Answer:
The simplest form would be:
8c² - 1.5d
Explanation:
To simplify an expression, we need to gather the like terms.
Like terms are the ones having the same variable raised to the same power
In the given expression:
6c² + 2.5d - d + 2c² - 3d
We have terms having c² and terms having d.
Therefore, we would gather them as follows:
6c² + 2.5d - d + 2c² - 3d
(6+2)c² + (2.5-1-3)d
8c² - 1.5d ......................> This is the simplest form
Hope this helps :)
8c^2-1.5d
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LA- 31x100/39 = 79%
82.3%>79%
She did better in the math class.
Answers
(4x + 5)(5x - 3).
step-by-step explanation:
20x^2 + 25x - 12x - 15 by grouping:
Start with the expression:
20x^2 + 25x - 12x - 15.
Group the terms in pairs, like this:
(20x^2 + 25x) - (12x + 15).
Now, look for the greatest common factor (GCF) in each group:
In the first group
(20x^2 + 25x), the GCF is 5x because both terms are divisible by 5x.
So, factor out 5x: 5x(4x + 5).
In the second group (12x + 15), the GCF is 3 because both terms are divisible by 3.
So, factor out 3: 3(4x + 5).
Now, your expression looks like this:
5x(4x + 5) - 3(4x + 5).
Notice that both groups have the common factor (4x + 5).
Factor this out: (4x + 5)(5x - 3).
So, the factored form of 20x^2 + 25x - 12x - 15 is (4x + 5)(5x - 3)
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Answers
Final answer:
In a data set, if the standard deviation is given as 9, the variance would be the square of that which equals to 81.
Explanation:
The standard deviation and variance are closely related in statistics. Standard deviation is the square root of the variance. Therefore, if the standard deviation for a data set is given as 9, then the variance would be the square of that value.
To calculate this, you would do the following:
- Take the standard deviation which is 9.
- Square the standard deviation: 9*9 = 81.
So, if the standard deviation for a data set is 9, then the variance for that data set is equal to 81.
Learn more about Standard Deviation and Variance here:
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