<h3>
Answer: A) z = 12</h3>
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Work Shown:
RS = RT
2z-15 = 9
2z = 9+15
2z = 24
z = 24/2
z = 12
The reason why RS is equal to RT in the first equation is because we have an isosceles triangle. Recall that any isosceles triangle has exactly two sides the same length, and the opposite base angles are congruent to one another. The congruent angles are indicated with the single arcs.
In short: the base angles S and T are congruent, so the opposite sides RS and RT are the same length. This leads to RS = RT.
Answer:
1 3/8
Step-by-step explanation:
Well to find the average or the mean we need to add all the numbers,
3/8 + 2/4 + 5/8 + 7/8 + 1 1/8 + 1 5/8 + 1 7/8 + 4
= 11
Then we divide t by the number of numbers in the set.
11 ÷ 8 = 1 3/8
<em>Thus,</em>
<em>the average in the set is 1 3/8.</em>
<em />
<em>Hope this helps :)</em>
Answer: ![2x^4+2x+10](https://tex.z-dn.net/?f=2x%5E4%2B2x%2B10)
Step-by-step explanation:
You need to remember the mulplication of signs:
![(+)(+)=+\\(-)(-)=+\\(-)(+)=-](https://tex.z-dn.net/?f=%28%2B%29%28%2B%29%3D%2B%5C%5C%28-%29%28-%29%3D%2B%5C%5C%28-%29%28%2B%29%3D-)
Knowing this, you can distributive the negative sign. Then you get:
![(-7x- 5x^4 + 5) - (-7x^4 - 5 - 9x)=-7x- 5x^4 + 5 +7x^4 + 5 + 9x](https://tex.z-dn.net/?f=%28-7x-%205x%5E4%20%2B%205%29%20-%20%28-7x%5E4%20-%205%20-%209x%29%3D-7x-%205x%5E4%20%2B%205%20%2B7x%5E4%20%2B%205%20%2B%209x)
Now you need to add the like terms. Then:
![=2x+2x^4+10](https://tex.z-dn.net/?f=%3D2x%2B2x%5E4%2B10)
Finally, you can order the polynomial obtained in descending order. Therefore, the answer is:
![=2x^4+2x+10](https://tex.z-dn.net/?f=%3D2x%5E4%2B2x%2B10)
Answer:
ARE YOU IN CYBER CLASSES TOO??? i NEED MAJOR HELP
Step-by-step explanation: