Answer:A
Step-by-step explanation:
To find the measure of angle ABC in triangle ABC, we can use the properties of perpendicular bisectors.
Since the perpendicular bisector of side AB intersects the extension of side AC at point D, we know that AD = DB. Therefore, triangle ABD is an isosceles triangle.
In an isosceles triangle, the angles opposite the equal sides are also equal. So, we have:
∠ABD = ∠ADB
Since ∠CBD = 16° and ∠ACB = 118°, we can find ∠ADB as follows:
∠ADB = 180° - ∠CBD - ∠ACB
= 180° - 16° - 118°
= 46°
Since ∠ABD = ∠ADB, we have:
∠ABD = 46°
Now, we can find ∠ABC:
∠ABC = 180° - ∠ABD - ∠ACB
= 180° - 46° - 118°
= 16°
Therefore, the measure of ∠ABC is 16 degrees. So, the correct answer is A. 16 degrees.
60(5m2 +2m +3) the answer is d
In a class where the ratio of boys to girls is 4 to 5, if there are 12 boys, there would be 15 girls.
The subject of this question is mathematics, specifically the topic of ratios and proportions. To answer your question, the ratio of boys to girls is 4 to 5, this means that for every 4 boys in the class, there are 5 girls. If there are 12 boys, you simply multiply each side of the ratio by the same factor to keep the ratio the same. Since 12 divided by 4 equals 3, we also have to multiply 5 by 3. Hence, there are 15 girls in the class.
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If necessary, round your answer to the nearest cent.
Answer:
Step-by-step explanation:
$0.50 per centimeters i think
To find the unit price, you divide the total price by the total quantity. The unit price of the wire is approximately $0.50 per centimeter, after rounding to the nearest cent.
To find the unit price, we need to divide the total price by the total quantity. In this case, Kaitlin paid $16.60 for 33.2 centimeters of wire. So, we need to divide 16.60 (in dollars) by 33.2 (in centimeters).
The calculation is:
16.60 ÷ 33.2 = 0.5
So, the unit price of the wire is approximately $0.50 per centimeter. Please note that we have rounded the final answer to the nearest cent, as requested.
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Answer:
14:40
Step-by-step explanation:
if both divided by 2 gives 7:20
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