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qwelly [4]
2 years ago
13

PLZZ I NEED HELP if ur good at math help meeee. I NEED HELP

Mathematics
1 answer:
Ilya [14]2 years ago
4 0
It looks like it’s already answered I’m confused about that
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The temperature in the ice rink must stay below 50°F this morning the temperature was 71 Degrees Fahrenheit the icing runs a coo
ahrayia [7]

Answer:

The temperature needs to decrease 71° - 50° = 21° that at least not greater than 50°F

As we know, the device decrease the temperature down 3.5° every hour, so

21 : 3.5 = 6 hour

Call x is the hours we need to wait to let the device decrease, we have

x > 6

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3 years ago
A rare first-edition book is currently priced at $200. After one year, the price of the book is anticipated to be 1.15 times the
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Answer is Graph Y, NOT Graph W

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What is 6,0000×5,0000<br>A.3,925,649,025<br>B.3,000<br>C.200<br>D.345
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At 4:00 A.M., the outside temperature was –28°F. By 4:00 P.M. that same day, it rose 38 degrees. What was the temperature at 4:0
miss Akunina [59]

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Step-by-step explanation:

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3 years ago
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Solve the triangle. Round your answers to the nearest tenth. A. m∠A=43, m∠B=55, a=16 B. m∠A=48, m∠B=50, a=23 C. m∠A=48, m∠B=50,
alexgriva [62]

Answer:

D. m∠A=43, m∠B=55, a=20

Step-by-step explanation:

Given:

∆ABC,

m<C = 82°

AB = c = 29

AC = b = 24

Required:

m<A, m<C, and a (BC)

SOLUTION:

Find m<B using the law of sines:

\frac{sin(B)}{b} = \frac{sin(C)}{c}

\frac{sin(B)}{24} = \frac{sin(82)}{29}

sin(B)*29 = sin(82)*24

\frac{sin(B)*29}{29} = \frac{sin(82)*24}{29}

sin(B) = \frac{sin(82)*24}{29}

sin(B) = 0.8195

B = sin^{-1}(0.8195)

B = 55.0

m<B = 55°

Find m<A:

m<A = 180 - (82 + 55) => sum of angles in a triangle.

= 180 - 137

m<A = 43°

Find a using the law of sines:

\frac{a}{sin(A)} = \frac{b}{sin(B)}

\frac{a}{sin(43)43} = \frac{24}{sin(55)}

Cross multiply

a*sin(55) = 25*sin(43)

a = \frac{25*sin(43)}{sin(53)}

a = 20 (approximated)

8 0
3 years ago
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