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lorasvet [3.4K]
2 years ago
6

PLZ answer ASAP!!!!! Due at midnight!!

Mathematics
2 answers:
valkas [14]2 years ago
5 0
I’m pretty sure it’s D!!!
Lapatulllka [165]2 years ago
3 0
Answer: D

Good luck !
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Which expression is the correct one?
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According to the logarithmic property of base change, the correpta answer is option one or the first.
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3 years ago
The diagram shows the entrance to a tunnel.
gladu [14]

Step-by-step explanation:

it filled up half the circle (up to the center point) - if we had a full circle. but a little bit is cut off (below AB).

what we see is that the shaded area is the sum of the area of the triangle AOB and 2 equally sized circle segment areas left and right of AOB.

since we are dealing with a half-circle, we have 180° in total. 120° are taken by AOB, so, that leaves us with 180-120 = 60° for both circle segments (so, one has an angle of 30°).

and 2×30° = 1×60°, so we can calculate the area of one 60° segment instead of two 30° segments.

AOB is an isoceles triangle (the legs are equally long, and therefore also the 2 side angles are equal).

the area of this triangle AOB is

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= 3.897114317... m²

a circle segment area of 60° is 60/360 = 1/6 of the full circle area (as a full circle = 360°).

so, it's area is

pi×r² × 1/6 = pi×3²/6 = pi×3/2 = 4.71238898... m²

so, the total area of the shaded area is

3.897114317... m² + 4.71238898... m² =

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2 years ago
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ivanzaharov [21]

Answer:

hi

Step-by-step explanation:

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<em>Answer:</em>

<em>t = 15</em>

<em>Step-by-step explanation:</em>

<em>t - 12 = 3</em>

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8 0
3 years ago
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Step-by-step explanation: welcome

8 0
3 years ago
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