It’s B
Cause if 400+80 is 480+9=489+0.6=489.6+0.05 and the final results it’s 489.65
Answer:
Step-by-step explanation:
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If you think about it if you get 3 wrong then you would've got 9 right. so 9/12 is 75% You would've gotten a C.
The measure of the angle x to the nearest hundredth is 22.62 degrees.
<h3>How to find the measure of an angle in a right triangle?</h3>
A right triangle is a triangle that has one of its angles as 90 degrees.
Therefore, the sides or angles can be found using trigonometric ratios, depending on the parameters given.
Hence, using trigonometric ratios,
cos x° = adjacent / hypotenuse
Therefore,
hypotenuse = 13 units
adjacent side = 12 units
Thus,
cos x = 12 / 13
cos x = 0.92307692307
x = cos ⁻¹ 0.92307692307
x = cos¹ 0.92307692307
x = 22.619864948
x = 22.62 degrees
Therefore, the measure of the angle x to the nearest hundredth is 22.62 degrees.
learn more on right triangle here: brainly.com/question/27996575
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Area of a circle = PI x r^2
you state pi = 3.19 ( it is usually 3.14, if it is a typo see below )
diameter = 14cm
r = 1/2 the diameter, so r = 7 cm
area = 3.19 x 7^2
area = 3.19 x 49 = 156.31 square cm
( if PI = 3.14, area = 3.14 * 49 = 153.86 square cm)