Find the value of X. Please show/explain work, and sorry if it’s hard to read
1 answer:
Answer:
x = 100°
Explanation:
The polygon has 6 sides, meaning it's a hexagon. In the picture you can see the following steps under #1:
(6-2) x 180° = 4 x 180 = 720°
720 is the total amount that all the angles should add up to, including the missing number x.
To solve for x add all of the angles up:
120 + 156 + 145 + (x + 9) + x + 90 = 720
520 + 2x = 720 (subtract 520 from both sides)
-520
2x = 200 (divide 200 by 2 to have x on its own)
x = 100°
To make sure it's correct, plug in the value (100°) for x in the original equation to check the answer:
120 + 156 + 145 + 100 + 9 + 100 + 90 = 720
720 = 720 Correct
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Given:
We are given ordered pairs of values for g(x) whose x-values are
-7, -2.5, 0, 0.5, 4, and 9.
After reflection across the x-axis, f(x) should have negative x-values, but the same y-values.
Use the calculator to create a table of f(x), with x-values of
7, 2.5, 0, -0.5, -4, and -9.
x: 7 2.5 0 -0.5 -4 -9
f(x): -10.206 -1.025 -0.286 -0.221 -0.037 -0.003
The corresponding values for g(x) will match f(x), but the x-values will be multiplied by -1.
Answer:
Of the given answers, only these are correct:
(-7, -10.206)
(0.5, -0.221)
(9, 0.003)
We are given ordered pairs of values for g(x) whose x-values are
-7, -2.5, 0, 0.5, 4, and 9.
After reflection across the x-axis, f(x) should have negative x-values, but the same y-values.
Use the calculator to create a table of f(x), with x-values of
7, 2.5, 0, -0.5, -4, and -9.
x: 7 2.5 0 -0.5 -4 -9
f(x): -10.206 -1.025 -0.286 -0.221 -0.037 -0.003
The corresponding values for g(x) will match f(x), but the x-values will be multiplied by -1.
Answer:
Of the given answers, only these are correct:
(-7, -10.206)
(0.5, -0.221)
(9, 0.003)