Answer:
3.5 un
Step-by-step explanation:
to find the new length of the square using a scale factor of 1/7 you can just multiply 24.5 by 1/7
this is basically dividing 24.5 by 7
24.5 / 7 = 3.5
that is your answer
I believe the correct answer is C I could be wrong tho
the question in English
The route of a stage of a cycle tour is 213 km long and a cyclist covers 2/3 of the route in five hours.
a) How many kilometers are left to finish the stage?
b) If he continues with the same average speed, how much time does he have left to finish the stage?
Step 1
we know that
1) Total kilometers of a stage is 
2) The cyclist covers
of the route
so
the kilometers remaining to finish the stage is equal to

therefore
<u>the answer Part a) is </u>

Step 2
<u>Find the average speed of the cyclist</u>
we know that
the speed is equal to

we have

substitute

Step 3
<u>Find the time remaining to finish the stage</u>
we know that

Solve for the time

we have

substitute

therefore
<u>the answer Part b) is</u>

Answer:
sinA = 0.79 tanA = 1.3
Step-by-step explanation:
Step1:
Find the length of the line going through the middle from A to C by using pythagorean theorem.
a = 13
b = 12
c= ?
c = sqrt(a^2 + b^2)
c = sqrt(13^2 +12^2)
c = 17.69
Step 2:
Use pythagorean theorem again to find the length of the line going from A to D.
a = ?
b = 14
c = 17.69
c^2 = a^2 + b^2
Now solve for a.
a^2 = c^2 - b^2
a = sqrt(c^2 - b^2)
a = sqrt(17.69^2 - 14^2)
a = 10.81
Step 3:
Use trignometry to find the values of sinA and tanA
sinA = opposite/hypotenuse = 14/17.69 = 0.79
tanA = opposite/adjacent = 14/10.81 =1.3
Answer:
A) <em><u>-</u></em><em><u> </u></em><em><u>13</u></em><em><u> </u></em><em><u><</u></em><em><u> </u></em><em><u>x</u></em><em><u> </u></em><em><u><</u></em><em><u> </u></em><em><u>-</u></em><em><u> </u></em><em><u>1</u></em>
Step-by-step explanation:
1) Rewrite the inequality without the absolute value.

2) Subtract 7 from the whole equation.

3) Simplify.

<em><u>Therefor</u></em><em><u>,</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>first</u></em><em><u> </u></em><em><u>option</u></em><em><u>.</u></em>