Answer: X = 30*
All circles = 360*
we can subtract 260 from that because we know the length of one so we know the other is 130.
We are then left with only 100 and we know the two sides are equivalent so 100 / 2 = 50
Answer:
<h3>4.c</h3><h3>5.a</h3>
Step-by-step explanation:
<h3>#CARRY ON LEARNING</h3><h3>#MARK BRAINLITS</h3>
Her weighted mean grade is 81.2% if the student earned grades of 84, 78, 84, and 72 out of 100 on her four regular tests.
<h3>What is mean?</h3>
It is defined as the single number that represents the mean value for the given set of data or the closed value for each entry given in the set of data.
We have a student who earned grades of 84, 78, 84, and 72 out of 100 on her four regular tests. She scored 78% on the final exam and 86% on her class projects.
The weighted mean can be calculated as:
![\rm = 0.4\times\dfrac{[(84+78+84+72)]}{4} + 0.3\times 78 + 0.1\times 86+ 0.2\times 87](https://tex.z-dn.net/?f=%5Crm%20%3D%200.4%5Ctimes%5Cdfrac%7B%5B%2884%2B78%2B84%2B72%29%5D%7D%7B4%7D%20%2B%200.3%5Ctimes%2078%20%2B%200.1%5Ctimes%2086%2B%200.2%5Ctimes%2087)
After calculating, we get:
= 81.2%
Thus, her weighted mean grade is 81.2% if the student earned grades of 84, 78, 84, and 72 out of 100 on her four regular tests.
Learn more about the mean here:
brainly.com/question/22871228
#SPJ1
Answer:
3^2
Step-by-step explanation:
The applicable rules of exponents are ...
(a^b)(a^c) = a^(b+c)
(a^b)/(a^c) = a^(b-c)
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