Answer:
f(4) = 3
When f(x) = 4, x = -1
Step-by-step explanation:
f(4) states that x co ordinate= 4. We need to find the y -co ordinate when x =4;
From the graph, when x = 4 , f(4) = 3
When f(x) = 4 , the x - co ordinate is -1
Answer:
22.5 degrees
Step-by-step explanation:
First angle = n
Second angle = x
Third angle = m
n = 30 + x
m = 2(30 + x) = 60 + 2x
60 + 2x + 30 + x + x = 4x + 90 = 180
4x = 90
x = 22.5
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Also, feel free to tell me if my answer is wrong, or you have more questions. Thanks for reading!
Answer:
a=11.625
a=8.375
Step-by-step explanation:
The first answer is if the -13. means -13 multiplied by 4a and the second one is if 4a=33.5 without the -13.
An equilateral triangle sides are all equal to each other. This means that is one side of an equilateral triangle is x + 3 then the sides of the other two triangles as also each x + 3
The formula for perimeter of a triangle is:
Perimeter = side 1 + side 2 + side 3
Or in the case of an equilateral triangle it would be:
Perimeter = 3(side)
This means that for the formula of this equilateral triangle you have:
Perimeter = 3(x + 3)
If asked the three out side of the parentheses can be distributed, meaning that you multiply the outside number (in this case that is 3) to all the number inside the parentheses (in this case that is x and 3)
Perimeter = (3 * x) + (3*3)
Perimeter = 3x + 9
Both of these are correct:
P = 3(x + 3)
P = 3x + 9
Hope this helped!
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