Answer:
<u>Yes. I agree with his claim because the equation relating the miles left to walk and the number of miles left to walk is :</u> 
Step-by-step explanation:
Given :
- <em>It's a 21 - mile walkathon</em>
- <em>The rate at which he is moving is 3 miles per hour.</em>
Let the number of miles walked be
;
∴,
The number of miles '
' left to walk will be :
<em>Thus the time '
' for which he walked :</em>
:
∴
From these equations , we get :

Thus , when we compare this with
,

<u>Thus this is an equation of a Line with slope -3.</u>
Answer:
Step-by-step explanation:
13x - 4 = 11x + 2
2x - 4 = 2
2x = 6
x = 3
Answer:
A = 83.6 yd² ⇒ answer (d)
Step-by-step explanation:
∵ AB = 15 , AC = 15 and m∠A = 48°
∵ Area of the Δ by using sin Rule
∴ A = 1/2 × S1 × S2 × sin including angle between two sides
∴ A = 1/2 × 15 × 15 × sin48 = 83.6 yd² ⇒ answer (d)
Answer:
Since, we are given table for x and y values
and table for average rate of changes
we can see the pattern of average rate of change
average rate of change for 5 to 6 is three times average rate of change for 4 to 5
but we have to find
average rate of change for 7 to 8
so, using same pattern
average rate of change for 6 to 7 is three times average rate of change for 5 to 6
average rate of change for 7 to 8 is 3*3( average rate of change for 5 to 6)
so, we can plug value
average rate of change for 7 to 8 is 3*3*486
average rate of change for 7 to 8 is 4374
so, option-D...........Answer
Step-by-step explanation:
Answer:
∠4
Step-by-step explanation:
An angle of depression is measured from the horizontal downwards.
This is ∠4 in the diagram