Answer:
x=3/10
x=0.3
10x=3
Step-by-step explanation:
If you mirror the shape on the top across the x-axis you get the shape on the bottom. It’s like if you folded it over the horizontal line
<span>D No, it is not. A straight angle has a measure greater than 90°, but it is not an obtuse angle.
The sentence should say: </span>An obtuse angle is an angle whose measure is greater than 90° but less than 180°
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Sum of adjacent angles on a straight line is 180°
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∠ABD + ∠CBD = 180°
(2x + 7) + (5x - 2) = 180
2x + 7 + 5x - 2 = 180
7x + 5 = 180
7x = 180 - 5
7x = 175
x = 25
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Answer: x = 25
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Answer:
a, b, d and f
Step-by-step explanation:
To find which equation will have a a mass less than 50 mg after 2 hours, we just need to use the value of x = 2 and then verify if the values of y are less than 50:
a. y = 100*(0.5)^2 = 25 -> apply
b. y = 500*(0.3)^2 = 45 -> apply
c. y = 80*(2)^2 = 320 -> doesn't apply
d. y = 10*(1.2)^2 = 14.4 -> apply
e. y = 30*(1.5)^2 = 67.5 -> doesn't apply
f. y = 80*(0.2)^2 = 3.2 -> apply
g. y = 100*(2)^2 = 400 -> doesn't apply