Answer:
![\boxed{\tt x=\sqrt{85} }](https://tex.z-dn.net/?f=%5Cboxed%7B%5Ctt%20x%3D%5Csqrt%7B85%7D%20%7D)
Step-by-step explanation:
When making a right triangle with 2 points, the distance is the hypotenuse which can be represent as "x"
To find the distance we can use the Pythagorean theorem.
![\boxed{{\tt a^2+b^2=c^2}}](https://tex.z-dn.net/?f=%5Cboxed%7B%7B%5Ctt%20a%5E2%2Bb%5E2%3Dc%5E2%7D%7D)
→ ![\tt a=9](https://tex.z-dn.net/?f=%5Ctt%20a%3D9)
→ ![\tt b=2](https://tex.z-dn.net/?f=%5Ctt%20b%3D2)
→ ![\tt c=x](https://tex.z-dn.net/?f=%5Ctt%20c%3Dx)
<u>Let's Plug in the side lengths:</u>
<u>Evaluate 9²= </u><u>81</u><u> and 2²= </u><u>4</u><u>:</u>
<u>Now, add 81+4= 85</u>
<u>Take the square root of both sides:</u>
_____________________________
Answer:
1 hour
Step-by-step explanation:
25min=1 poster for the shop owner
25×4=100
100×8=800
800÷25=32 posters in 8hrs for the shop owner
1hr×8=8 posters for the apprentice
thus 40 in total
Answer:
the scale factor and the ratio of their perimeters is 8/9
Step-by-step explanation:
k^2=area 1/area 2
k^2=64/81
=square root if k^2=square root of 64/81
=<u>k</u><u>=</u><u>8</u><u>/</u><u>9</u>
Answer:
D
Step-by-step explanation:
A function input can only have ONE output value
so the number 5 can't output two different numbers