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Sophie [7]
2 years ago
5

1 point

Mathematics
1 answer:
weeeeeb [17]2 years ago
5 0

Answer:

The answer is 0.71 per ounce.

Step-by-step explanation:

You can use proportions to solve this.

\frac{89.95 dollars}{64lb} = \frac{1 dollar}{x} \\64 * 1 = 64\\89.95 * x = 89.95x\\\\\frac{64}{89.95} = \frac{89.95x}{89.95}\\\\0.7115063924 = x\\Which when rounded to the nearest hundredths is:\\0.71

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Find the area of the trapezoid. {?} Square centimeters
RideAnS [48]

Answer:

68

Step-by-step explanation:

Use the formula provided...

6 and 11 are b1 and b2, and 8 is h.

So, 6+11 = 17

17/2 = 8.5

8.5*8 = 68

3 0
2 years ago
Read 2 more answers
Find the exact value of each of the following. In each case, show your work and explain the steps you take to find the value.
mote1985 [20]

Answer: a) \frac{1}{2}

b) 1

c) 2

Step-by-step explanation:

(a) sin 17π/6  

It is known that the value of sin x repeat after an interval of 2\pi\ or\ 360^{\circ}

∴ \sin\frac{17\pi}{6}=\sin2\frac{5\pi}{6}=\sin(2\pi+\frac{5}{6}\pi)=\sin{\frac{5}{6}\pi}=\sin(\pi-\frac{\pi}{6})=\sin(\frac{\pi}{6})=\frac{1}{2}

[Since the value of sin x is positive in 2nd quadrant]

(b) tan 13π/4  

It is known that the value of sin x repeat after an interval of \pi\ or\ 180^{\circ}

∴ \tan\frac{13\pi}{4}=\tan(3\pi+\frac{\pi}{4})=\tan{\frac{\pi}{4}}=1

(c) sec 11π/3

\text{Since, }\sec(x)=\frac{1}{\cos x}

\cos(\frac{11\pi}{3})=cos(\frac{5\pi}{3}+2\pi)=\cos(\frac{5\pi}{3})=\cos(6\pi-\frac{\pi}{3})=\cos(\frac{\pi}{3})=\frac{1}{2}\\\Rightarrow\sec(\frac{11\pi}{3})=\frac{1}{\cos(\frac{11\pi}{3})}=2

4 0
3 years ago
Circle T is defined by the equation (x + 5)2 + (y - 2) = 81. Which of the following shows the location of the center of Circle T
mina [271]

Answer:

A) T is located on (-5, 2); radius = 9 units

Step-by-step explanation:

eqn of circle= (x-a)^2 + (y-b)^2 = r^2

where (a,b) is centre of circle.

(x+5)^2 = (x - (-5) )^2

(y-2)^2 = (y - (2) )^2

(-5,2)

r^2 =81

r = sqrt of 81

r = 9

4 0
2 years ago
Can someone help me on this problem i am stuck?
gavmur [86]
Not that hard. Its B

4 0
2 years ago
What is the value of x in the diagram?
DerKrebs [107]
The answer is 27 (hope this helps you)
7 0
2 years ago
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