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Elodia [21]
3 years ago
10

find the length and width of a rectangle that has an area of 968 square feet and whose perimeter is a minimum

Mathematics
1 answer:
andrezito [222]3 years ago
3 0
The question isn't finished...
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If Sin x = -¼, where π < x < 3π∕2 , find the value of Cos 2x
Sliva [168]

Answer: 7/8

Cos2x has 3 formulas, Sinx is given in the question, we should use the formula with sinus. I guess that's the solution.

5 0
3 years ago
Can someone please help me on this one?
diamong [38]
Add the three angles and set them to 180
4x-13+15+x+18=180
5x+20=180
5x=160
x=32

Then plug in to get A and C
A=4*32-13 
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C=32+18
C=50
4 0
3 years ago
The tension t in a spring varies directly with the distance d the spring is stretched. If the
yarga [219]

Answer:

t = 21d

Step-by-step explanation:

Here tension and distance are denoted t by d  and  respectively. Since  t varies directly with d , then the relation between  t and d is k=td Given that, for the tension 42 pounds, the spring is stretched 2 inches. Substituting  t = 42 and d= 2 into  t = kd find the value of k . Therefore,

42= K (2)

K=\frac{42}{2}

K= 21

Thus the relationship is t = 21d

(Hope this helps can I pls have brainlist (crown)☺️)

7 0
3 years ago
Solve x + 1 > 10, x + 11 > 20, and x + 21 > 30. Describe a pattern. Then use the pattern to predict the solution of x +
inysia [295]

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Step-by-step explanation:

8 0
3 years ago
A boat travels at constant speed. After 20 minutes the boat had traveled 2.5 miles. How long does it take the boat to reach the
schepotkina [342]

120 minutes

Step by step:

divide 20 by 2.5 to find how many minutes it takes to drive 1 mile, then multiply that by 15 miles

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3 years ago
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