Answer:
Part A: 16x^2 -56x+49
I'm not quite sure on Part B and C though, sorry :/.
Step-by-step explanation:
To find the expression we need to solve (4x-7)•(4x-7)
4x•4x = 16x^2
4x•-7= -28x
-7•4x= -28x
-7•-7=49
Combine alike terms
16x^2-56x+49
Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!
Answer:
Temperature in °F = 160°F
Step-by-step explanation:
Temperature can be defined as a measure of the degree of coldness or hotness of a physical object. It is measured with a thermometer and its units are Celsius (°C), Kelvin (K) and Fahrenheit (°F).
Given the following data;
Temperature in Celsius = 25°C
To convert celsius to fahrenheit, we would use the following formula;
Temperature in °F = (5 x temperature in °C + 32°)
Substituting into the formula, we have;
Temperature in °F = (5 x 25 + 32°)
Temperature in °F = (125 + 32°)
Temperature in °F = 157
To the nearest 10°F;
Temperature in °F = 160°F
Well ur working with perimeter and its a square remember all sides will be the same so u would divde 250 and 125 from 4 so 250/4=62.5 and 125/4=31.25. so now u find that now hr taking away both of the perimeters cause ur finding how much GREATER so that will be 62.5-31.25= 31.25 if u have any more problems and if u have instagram my ne on it is j.j.henry.
x > 7
<u>Explanation:</u>
Denominator of both sides gets cancelled and the equation becomes
Therefore,
Therefore, on solving the equation we get x >7.
X= hours needed by the designer
x+ 16= hours needed by the assistant
In 6 hours the designer does 6/x of the job
In 6 hours the assistant does 6/(x + 16) of the job
Together they complete the 1 job
6/x+ 6/( x+16)= 1
6(x+16) +6x =+ x2<span> </span><span>16x
6x+ 96+ 6x= </span>x<span>2+ 16x
0= </span>x2+ 4x- 96
0= (x+12)(x-8)
{-12/8}
The designer needs 8 hours and the assistant needs 24 hours.
