Answer:
So first lets find g(-1)
so we plug in the answers:
-2 * -1 ^2 -4
-2*1-4 = -2-4 =
-6
Now lets solve for f(-2)
-2^2-3
4-3=1
-6+1 = 5
3*5 = 15
Im getting answer of 15 but it shows -15 or something, so I dont know if I got it wrong or if its like a dash then the answer.
<u>Answer:</u>
-
The length of the hypotenuse is 40 mm.
<u>Step-by-step explanation:</u>
<em>We can solve for 'c' using Pythagoras theorem. Let's solve it.</em>
-
c² = 32² + 24²
- => c² = 1024 + 576
- => c² = 1600
- => c = 40
Hence, the length of the hypotenuse is 40 mm.
Hoped this helped.
![BrainiacUser1357](https://tex.z-dn.net/?f=BrainiacUser1357)
Three more than the variable n.
Answer: 20+20
Step-by-step explanation: The sum of their square is 800 which is the lowest i've found so far
<h2>
Greetings!</h2>
Answer:
Horseback riding costs $30 and parasailing costs $51, so B.
Step-by-step explanation:
This is answered by using simultaneous equations, let x be parasailing and y be horseback riding.
3y + 2x = 192
2y + 3x = 213
Multiply each equation by the number in front of the y of the other equation:
2 x (3y + 2x = 192)
3 x (2y + 3x = 213)
Which results in:
6y + 4x = 384
6y + 9x = 639
Simply minus the two equations to get rid of the y:
6y - 6y = 0
4x - 9x = -5x
384 - 639 = -255
The negatives cancel out which give a result:
5x = 255
x = ![\frac{255}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B255%7D%7B5%7D)
x = 51
So parasailing costs $51
Now you can simply plug this value into one of the equations:
3y + (2 x 51) = 192
192 - 102 = 3y
90 = 3y
y = ![\frac{90}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B90%7D%7B3%7D)
y = 30
So horseback riding costs $30!
Hope this helps.