9514 1404 393
Answer:
Molly
Step-by-step explanation:
Brady did not properly create a square.
The square of a binomial is ...
(a -b)² = a² -2ab +b²
Where a²=x² and -2ab = -4x, you find b=2. The constant term in the square is 2²=4. Brady shows it as -4, which is incorrect.
Molly's work is correct.
<h3>Convert feet/seconds to miles/hours.</h3>
- Mile (Mi): Unit of length.
- Foot (Ft): Unit of length.
- Hour (Hr): Unit of time.
- Seconds (S): Unit of time.
Taking into account that:
- <em>1 mi = </em><em>5280 ft</em>
- <em>1 hr = </em><em>3600 se</em>
![\boldsymbol{\sf{Therefore \ \ \longmapsto \ \ \ 60\dfrac{\not{ft}}{\not{s}}*\left(\dfrac{1 \ mi}{5280\not{ft}}\right)*\left(\dfrac{3600 \not{s}}{1 \ h}\right)=\boxed{\boldsymbol{\sf{ 40.9091 \ Mi/hr }}} }}](https://tex.z-dn.net/?f=%5Cboldsymbol%7B%5Csf%7BTherefore%20%5C%20%5C%20%5Clongmapsto%20%5C%20%5C%20%5C%2060%5Cdfrac%7B%5Cnot%7Bft%7D%7D%7B%5Cnot%7Bs%7D%7D%2A%5Cleft%28%5Cdfrac%7B1%20%5C%20mi%7D%7B5280%5Cnot%7Bft%7D%7D%5Cright%29%2A%5Cleft%28%5Cdfrac%7B3600%20%5Cnot%7Bs%7D%7D%7B1%20%5C%20h%7D%5Cright%29%3D%5Cboxed%7B%5Cboldsymbol%7B%5Csf%7B%20%2040.9091%20%5C%20Mi%2Fhr%20%7D%7D%7D%20%20%20%7D%7D)
So 60 <u><em>Feet/Sec = 40.9091 Miles/hours.</em></u>
Answer:
Literally any number will do.
Step-by-step explanation:
26,201
There
31 is the answer.
50 * 0.62 = 31
You can also do it like
62 * 0.50 = 31
Draw a cartesian plane, create a graph with the equation x = y^2 - 2
then substitute numbers into the equation so that it is true, to find points on the graph, e.g. substitute y with 1, you get
x = 1^2 - 2
x = 1 - 2 = -1, so when y = 1, x = -1, this point is (-1, 1)
for the next substitute y with 2,
x = 2^2 - 2
x = 4 - 2 = 2, the point is (2, 2)
you might want to try negative values of y
y = -1, x = (-1)^2 - 2
x = -1 the point is (-1,-1)
then plot the points on the graph