Answer:
the answer is a. 89 miles
Step-by-step explanation:
first you do 59.40 x 3 = 178.47
then you do 222.08 - 178.47 = 43.61
finally you do 43.61 divided by 0.49 = 89
Answer:
See below.
Step-by-step explanation:
7) 10 x [(7² + 3) - 9]
= 10 x [52 - 9]
= 10 x 43
= 430
9) {[(66 / 11) + 3] x 2}
= [6 + 3] x 2
= 9 x 2
= 18
11) {[(18 - 3) + 3²] - 14} x 3
= {[24] - 14} x 3
= 10 x 3
= 30
The equation to model the situation is
. The constant for the variation is 2250.
<h3>What is the intensity of light?</h3>
The intensity of light from a lantern varies inversely to the square of the distance from the lantern.
From the given information:
- Let y be the intensity of light, and
- x be the distance from the lantern
Then:

here, k = constant.
2.
If y = 90 W/m² when the distance x = 5m
Then:

k = 90 × 25
k = 2250
c.
The equation to model the situation by using the constant variation is:

d.
If the light intensity y = 40, then x is determined as:


x = 7.5 m
e.
The light is needed in (225 × 1000)m = 225000 km of illumination.
f.
The lantern required for the new light estimation is:
y = 2250/225000
y = 0.01 intensity
Therefore, we can conclude that to get an intensity of 1 W/m², we need to put 100 lanterns.
Learn more about intensity of light here:
brainly.com/question/19791748
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17/3x-17/2=-5/4
17/3x=-5/4+17/2
=29/4
29/4 divided by 17/3=x
x=87/68. A
Answer:
49
Step-by-step explanation:
M<1 = M<2 - Corresponding angles are congruent
M<2 = M<3 - Vertical angles