Answer:
432
Step-by-step explanation:
You need to multipliy 12x36=432.
On the right side of the equation, when the student combined like terms, 7x and -4x, they did not combine them correctly. Instead of combining them correctly, the student forgot to include the sign of the -4x which caused the sum of the two terms to be 11x instead of 3x. Hope this helps!
Answer:
26.1 feet
Step-by-step explanation:
This question is solved using Pythagoras theorem
Pythagoras Theorem =
c² = a² + b²
c = longest side = 27 feet
One post is 12 feet tall while the other is 19 feet tall.
The vertical side = a is calculated as
19 - 12 = 7 feet.
The third side = b = how far apart they are = ?
Therefore,
27² = 7² + b²
b² = 27² - 7²
b = √27² - 7²
b = √(680)
b = 26.076809621 feet
Approximately = 26.1 feet
Therefore, the distance between the posts = 26.1 feet
Answer:
Step-by-step explanation:
Considering the given triangle EDI, to determine ED, we would apply the sine rule. It is expressed as
a/SinA = b/SinB = c/SinC
Where a, b and c are the length of each side of the triangle and angle A, Angle B and angle C are the corresponding angles of the triangle. Likening it to the given triangle, the expression becomes
ED/SinI = DI/SinE = EI/SinD
Therefore
Recall, the sum of the angles in a triangle is 180°. Therefore,
I° = 180 - (36 + 87) = 57°
Therefore,
ED/Sin 57 = 26/Sin 36
Cross multiplying, it becomes
EDSin36 = 26Sin57
0.588ED = 26 × 0.839
0.588ED = 21.814
ED = 21.814/0.588
ED = 37.1 m
Answer:
90
Step-by-step explanation:
There are 10 people and they each get 9 cookies
And 9 times 10 is 90
