Hello!
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I think that 12/42=10/35 is a true proportion. 10/9=11/10 are almost a true proportion, but 10/9 is 1.1111111111..., and 11/10 is 1.1. 48/56=40/48 and 1/2=3/4 are different numbers when in decimal form.
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I hope this helps and have a great day! :)
Answer:
2 meters
Step-by-step explanation:
To find the maximum length of the seesaw, we just need to use the sine relation its angle with the ground.
The opposite side to the angle of 30° is the maximum height of 1 meter, and the hypotenuse is the length of the seesaw. So we have that:
So the maximum length of the seesaw is 2 meters.
Answer:
Kidz comic costs the most
<em></em>
Step-by-step explanation:
Given
Family Fun
Kidz Comics
--- monthly rate
--- delivery charge
Required
Which is more expensive
A linear function is represented as:
Where
--- i.e. the base charge
So, for Kidz comic; We have:
To calculate the annual cost, we set x = 12; i.e. 12 months.
So, we have:
---- Family Fun
--- Kidz comic
By comparison
<em>Hence, Kidz comic is more expensive</em>
Answer:
<h2>
E) 84</h2><h2 />
Step-by-step explanation:
side AB is congruent to side AX
this means that the angle ∠A = 4x is the same angle as ∠Z
therefore ∠A = ∠Z = 4x
inside angle of a triangle = 180
∠A + ∠B + ∠Z = 180
4x + 7x + 4x = 180
15x = 180
x = 180/15
x = 12
now substitute x = 12 into angle B
∠B = 7x
∠B = 7 (12)
∠B = 84
therefore, the answer is E) 84
It equals about 23 meters I think