In your 30° - 60° - 90° triangle, the ratios of the sides are
.. PR : QR : PQ = 1 : √3 : 2
A) QR/PQ = (√3)/2 . . . . . TRUE
B) PR/PQ = 1/2, not (√3)/2 . . . . false
C) QR/PR = (√3)/1 . . . . . TRUE
D) PQ/PR = 2/1, not √3 . . . . . . .false
E) QR/PR (see C) . . . . . . . . . . .false
F) PQ/PR = 2/1 . . . . . . . .TRUE
Answer:
Step-by-step explanation:
2.788 x 10^7
so 2.788 x 10 to the power of 7 = 1 mile
Answer: 8cm
Step-by-step explanation:
Solve for h;
Answer:
<h2>x = 2 </h2><h2>y = - 3</h2><h2>z = - 2</h2>
Step-by-step explanation:
6y - 5z = -8 .......... Equation 1
3z = -6 ................... Equation 2
4x - 3y - 2z= 21...... Equation 3
<u>First solve for z in Equation 2</u>
That's
3z = - 6
Divide both sides by 3
<h3>z = - 2</h3>
Next substitute the value of z into Equation 1 in order to find y
We have
6y - 5(-2) = - 8
6y + 10 = - 8
6y = - 8 - 10
6y = - 18
Divide both sides by 6
<h3>y = - 3</h3>
Finally substitute the values of y and z into Equation 3 to find the value of x
That's
4x - 3(-3) - 2(-2) = 21
4x + 9 + 4 = 21
4x + 13 = 21
4x = 21 - 13
4x = 8
Divide both sides by 4
<h3>x = 2</h3>
So the solutions are
<h3>x = 2 </h3><h3>y = - 3</h3><h3>z = - 2</h3>
Hope this helps you
