Answer:
Step-by-step explanation:
We have two conditions:
Bella: y = 25x + 60 = 25(10) + 60 = 250 + 60 = 310
Heather: y = 30x + 10 = 30(10) + 10 = 300 + 10 = 310
Brian's kite is flying above a field at the end of a 68m string.If the angle of elevation to the kite measures 70 degrees,how hi
gh is the kite above Brian's head?
1 answer:
Answer:
Step-by-step explanation:
Given:
Angle of elevation = 70°
Length of string = 68 m
We need to find the height of the kite.
Solution:
Requirement figure attached in file.
Where:
BC = 68 m
AC = h (Height of the kite)
∠ABC = 70°
Using Cosine rule to find the height of the kite.
Therefore, height of the kite from Brian's head .
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Answer:
Step-by-step explanation:
The formula for distance is:
Where (x₁, y) and (x₂, y₂) are the points.
We are given (-6, 6) and (-3, 3). If we match the value and its corresponding variable, we see that:
- x₁= -6
- y₁ = 6
- x₂ = -3
- y₂ = 3
Substitute the values into the formula.
Solve inside the parentheses.
- -3 --6 = -3+6 = 3
- 3-6 = -3
Solve the exponents.
- (3)²= 3*3= 9
- (-3)²= -3*-3 =9
Add.
Round to the nearest tenth. The 4 in the hundredth place tells us to leave the 2 in the tenth place.
The distance between the two points is apprximately <u>4.2</u>
Option B) (x + 3)^2 − 5 is the correct answer
Step-by-step explanation:
Given expression is:
We will solve eah expression in the options to chek which is equivalent to given expression
So,
<u>A) (x + 3)^2 + 5</u>
NOT equivalent
<u>B) (x + 3)^2 − 5</u>
Equivalent
Hence,
Option B) (x + 3)^2 − 5 is the correct answer
Keywords: Equivalent expressions, polynomials
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