What is 2 1/4 equal to
2 answers:
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Answer:
X=40°
X=30°
X=50°
Step-by-step explanation:
Let our unknown angles be denoted by
Part I
We are given the sum of the angles as 70°, the known as 30° and the unknown as X;
To find X, we subtract the known angle from the sum as:
X=70°-30°=40°
Hence X= 40°
Part II
We are given the sum of the angles as 70°, the known as 40° and the unknown as X;
To find X, we subtract the known angle from the sum as:
X=70°-40°=30°
Hence X= 30°
Part III
We are given the sum of the angles as 80°, the known as 30° and the unknown as X;
To find X, we subtract the known angle from the sum as:
X=80°-30°=50°
Hence X= 50°
The time that rocket will hit the ground, to the nearest 100th of second is 10.43 seconds
Given the equation representing the height reached by a rocket as:
The rocket will hit the ground when y = 0. Substituting y = 0 into the expression to get x;
On factorizing:
x = 10.43 seconds
Hence the time that rocket will hit the ground, to the nearest 100th of second is 10.43 seconds
Learn more here: brainly.com/question/14479223
Answer:
The product is the difference of squares is
Step-by-step explanation:
Explanation
- The given expression is (9c-2d)(9c+2d).
- We have to multiply the given expression.
- Square the first term 9c. Square the last term 2d.