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sukhopar [10]
3 years ago
7

The area of Maxine's living room is 88 square feet. The length of the room is 3 feet longer than the width. Which quadratic equa

tion can Maxine use to determine the width, x, of her living room?

Mathematics
1 answer:
GaryK [48]3 years ago
6 0

Answer:

B. Because x(x+3) is x^2+3x

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Solve 6 1 - (2 4/16 +3 2/3)<br>Do the operation in parentheses first Show all your steps.​
amid [387]

Answer:

55\frac{1}{12}

Step-by-step explanation:

61 - (2 4/16 +3 2/3) = 61 - (5 +( 4/16 + 2/3))

                              = 61 - (5 +( 6/24 + 16/24))

                             = 61 - (5 + 22/24)

                             = (61 - 5) - 22/24

                             = 56 - 11/12

                             = 55 1/12

6 0
3 years ago
What is the sector with a central angle of 185 degrees and a diameter of 6.4 m? Round to the nearest tenth.
mr_godi [17]
The area of a sector is 
     A=\frac{1}{2}r^2\theta =\frac{1}{2}\left(3.2\:m\right)^2\left(185\cdot \frac{\pi }{180}\right)=16.5\:m^2

The answer is 16.5 square meters. 
6 0
3 years ago
Read 2 more answers
Plz help me answer 1 2 and 3​
Yuki888 [10]

YesAnswer:

Step-by-step explanations d

5 0
3 years ago
Josie has 47$ left on her checking account if she writes a check for 55$ what will josies balance be
HACTEHA [7]
She will have negative eight dollars. Thats all I can say

7 0
2 years ago
WILL MAKE BRAINLIEST!!! A Ferris wheel has a diameter of 220 feet and the center of the wheel is 125 feet above the ground. The
daser333 [38]
Since the radius of a circle is half its diameter, the radius of our Ferris wheel is r= \frac{220}{2} =110ft

Next, we are going to convert from revolutions per minute to degrees per second.
We know that t<span>he wheel makes a complete turn every 2 minutes, so it makes a complete turn in 120 seconds. Since there are 360° in a complete turn, we can set up our conversion factor:
</span>\frac{1*360}{120}=3 degrees per second 
<span>
Now, lets find the height:
</span>We know that <span>the passenger is at the lowest point on the wheel when t=0; since the wheel is 125 feet above the ground, at t=0 h=125. To find t at the top, we are going to take advantage of the fact that the wheel will turn 180° from the lowest point to the top and that it turns 3° every second:
</span>t= \frac{180}{3}
t=60
Notice that the height at the top is the diameter of the wheel plus the height above the ground, so h=220+125=345.

To model the situation we are going to use the cosine function, but notice that cos (\alpha) is 1 when \alpha =0 and -1 wen \alpha =180. Since we want the opposite, we are going to use negative cosine.
Notice that we want \alpha =180 when t=60, so we are going to use -cos(3t). Next, we are going to multiply our cosine by the radius of our wheel: -110cos(3t), and last but not least we are going to add the sum of the radius of the wheel plus the height above the ground:
h=110+125-110cos(3t)
h=225-110cos(3t)

Now that we have our height function lets check if everything is working:
<span>the passenger is at the lowest point at t=0; we also know that the lowest point is 125 feet above the ground, so lets evaluate our function at t=0:
</span>h=225-110cos(3t)
h=225-110cos(3*0)
h=125 feet 
So far so good. 
We also know that at t=60, our passenger is 345 feet above the ground, so lets evaluate our function at t=60 and check if coincides:
h=225-110cos(3t)
h=225-110cos(3*60)
h=225-110cos(180)
h=345feet 

We can conclude that cosine function that express the height h (in feet) of a passenger on the wheel as a function of time t (in minutes) ) is: h=225-110cos(3t)
8 0
3 years ago
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