11a. I can't show the workings because I don't have pie on my keyboard. am so sorry but number 11a's answer is 6
11b = 10
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We know that, Two angles are said to be complementary, if the sum of their measures is 90°.
<u>According to the Question</u>,
⇒ ∠ABD + ∠DBC = 90°
⇒ (2x + 30)° + (3x + 20)° = 90°
⇒ 2x + 30° + 3x + 20° = 90°
⇒ 5x + 50° = 90°
⇒ 5x = 90° - 50°
⇒ 5x = 40°
⇒ x = 40°/5
⇒ x = 8
<u>So</u>, <u>t</u><u>he measure of each angle will be</u>,
⇒ ∠ABD = (2x + 30)°
= 2 × 8 + 30°
= 16 + 30°
= 46°
⇒ ∠DBC = (3x + 20)°
= 3 × 8 + 30°
= 24 + 30°
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<u>Answer:</u>
7 inches
<u>Step-by-step explanation:</u>
The dimension of the rectangular gift is 10 by 12 inches so let us find the perimeter of this rectangle.
Perimeter of rectangular gift = 2 (L+ W) = 2 (10 +12) = 44 inches
Since we are to use the same length of ribbon to wrap a circular clock so the perimeter or circumference of the clock should be no more than 44 inches.
Therefore, the maximum radius of the circular clock is 7 inches.
Answer:
540 centimeters
Step-by-step
3 times 180cm is 540cm (17ft 8.6 inches)
The giraffe is a tall African even-toed hoofed mammal belonging to the genus Giraffa. It is the tallest living terrestrial animal and the largest ruminant. Wikipedia
Eats: Acacia
Gestation period: Northern giraffe: 15 months
Speed: 37 mph (Maximum, Sprint)
Neck bones: seven neck vertebrae clevelandzoosociety.org
Class: Mammalia
Genus: Giraffa; Brisson, 1762
Height: 16 – 19 ft. (Adult), 14 – 17 ft. (Adult)
Answer:
The rule to be use is
SOC CAH TOA
But in this we use d CAH cox there's adjacent and hypothenos here
Step-by-step explanation:
The first triangle
hyp²=opp.²+adj²
62²=x²+3.5²
x²=62²-3.5²
x²=3844-12.25
x²=3831.75