If f(x)= 2x, find f(-3)
please help, I'm so confused ;-;
Answers
Answer:
-6
Step-by-step explanation:
2 x -3 = -6
hope this helped
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A skier has decided that on each trip down a slope, she will do 3 more jumps than before. On her first trip she did 5 jumps. Derive the sigma notation that shows how many total jumps she attempts from her third trip down the hill through her tenth trip. Then solve for the number of total jumps from her third to tenth trips.
You borrow $2000 from the bank at 1% annual interest compounded monthly. The monthly payment is $100. What is the balance after the third payment?
Please help!! There's a picture.
Answers
3y + 4y = 7y
Answer: 3x + 7y
{17, 27, 29, 31, 45}
{18, 24, 26, 30, 46}
{14, 23, 25, 31, 42}
{20, 24, 25, 26, 44
Answers
Substitute the values of the size of the 5 batches to the model.
For example
@x = 20
f(20) = 2*20 – 23 = 17
f(25) = 2*25 – 23 = 27
f(26) =29
f(27) = 31
f(34) = 45
Therefore the answer is the first choice (17, 27, 29, 31, 42)
Answers
Answer:
The length of the ladder = 6.5077 ft
Step-by-step explanation:
Given A ladder leans against the side of a house
Given the angle of elevation of the ladder is 66° when the bottom of the ladder is 16 ft from the side of the house
Let 'C' be the point of observation.
Given CA= 16 ft
From right angle triangle
x = 16 × cos 66°
x = 16 × 0.4067
x = 6.5077
x = 6.5 ft
The length of the ladder = 6.5 ft
help quick!
Answers
Answer:
A right angle.
Step-by-step explanation:
65+25 =90
25+65= 90°
Answer:∠ABC is a vertical angle. Because, vertical angles are 90°
I’ll give brainlist
Answers
Answer:
Area = 104 m²
Step-by-step explanation:
the figure is composed of a rectangle and a triangle
area of rectangle = length × breadth = 10 × 8 = 80 m²
area of triangle = × base × perpendicular height
the base of the triangle is opposite the 8 m side of the rectangle and is 8 m
the perpendicular height of the triangle is 6m , then
area of triangle = × 8 × 6 = 4 × 6 = 24 m²
sum the areas of the two parts
area = 80 + 24 = 104 m²
12m
10m
9m
Answers
Answer:
The correct answer is: d=9m
Step-by-step explanation:
Ok, the ladders leaned against a building make two right triangles with same the same height, which we will call h. For the 20m ladder, its leg is (7+d) and for the 15m ladder, its leg is d, and the two hypotenuses are 20 and 15 respectively.
Then, using the Pythagorean Theorem we have:
20m ladder:
20^2 = h^2 + (d+7)^2 (Eq. 1)
400 = h^2 + d^2 + 2*7*d + 7^2 (expanding the theorem)
400 = (h^2 + d^2) + 14*d + 49 (Eq. 2)
15m ladder:
15^2 = h^2 + (d)^2 (Eq. 3)
Since h^2 + (d)^2 is equal to 15^2, we can substitute (2) into (3):
400 = (15^2) + 14*d + 49
400 = 225 + 14*d + 49
14*d = 400 - 225 - 49 (clearing the variable d)
14*d = 126
d = 9 m
And since we now know that d is equal to 9m. For the longer ladder is (d+7)=(9+7)=16m.
And, then the shorter ladder is 9m from the building and the longer ladder is 16m from the building