Answer:
x = 7, arc DE = 198°
Step-by-step explanation:
Inscribed angles from the same arc are congruent.
∠ DCE and ∠ DWE are inscribed angles from the same arc DE , thus
12x + 15 = 3x + 78 ( subtract 3x from both sides )
9x + 15 = 78 ( subtract 15 from both sides )
9x = 63 ( divide both sides by 9 )
x = 7
Thus
∠ DCE = 12x + 15 = 12(7) + 15 = 84 + 15 = 99°
The inscribed angle DCE is half the measure of its intercepted arc, thus
arc DE = 2 × 99° = 198°
Answer:
it is 300
Step-by-step explanation:
because of you get it and dived it den you will time it so you will get to 300
Option D- Commutative property of addition.
<u>Answer:
</u>
18 + 9 = 9 + 18 which illustrate commutative property of addition.
<u>Solution:
</u>
Step 1:
The given data is a commutative property of addition, because no-matter where we put the numbers, you will always get the same answer.
This can be represented by a + b = b+ a
Step 2:
From the given Data
18 + 9 = 9 + 18
When we add LHS and RHS we get the same answer 27.
Step 3:
If we exchange the numbers in this problem then also you will get the same answer.
9 + 18 = 18 + 9 which gives 27.
Result:
Hence we come to the conclusion; the given data illustrates commutative property of addition.
Answer:
69/8 :)
Step-by-step explanation:
17. 3x23/8
