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Zielflug [23.3K]
3 years ago
5

The temperature in the ice rink must stay below 50°F this morning the temperature was 71 Degrees Fahrenheit the icing runs a coo

ling device that can decrease the temperature by 3.5° every hour how many hours will it take for the temperature to fall below 50°
Mathematics
1 answer:
ahrayia [7]3 years ago
3 0

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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What else would need to be congruent to show that triangle EFG=~ triangle HIJ by SSS?
Anuta_ua [19.1K]

Answer:

C

Step-by-step explanation:

In order to prove congruency using SSS, we need to prove that all three pairs of sides are congruent.

We are already given that EF ≅ HI and that FG ≅ IJ.

Therefore, the last bit of information we need to prove congruency using SSS is that EG ≅ HJ.

Hence, our answer is C.

8 0
2 years ago
A circle's circumference is approximately 44 cm.
Sav [38]
<h3>Answers</h3><h3>diameter = 14</h3><h3>radius = 7</h3><h3>area = 154</h3>

these are all approximate

======================================

Explanation:

C = pi*d is the formula for the circumference. We know that C = 44 approximately, so,

C = pi*d

d = C/pi

d = 44/3.14

d = 14.01 approximately

d = 14 also approximate

take half of this to get the radius

r = d/2 = 14/2 = 7

Then use this radius to find the circle's area

A = pi*r^2

A = 3.14*7^2

A = 153.86

A = 154  rounding to the nearest whole number

7 0
3 years ago
How to find the inverse of g(x) = -3 +(3/5)x​
nasty-shy [4]

Answer:

g^-1(x)=5x/3 +5

3 0
2 years ago
john owns a truck. he rents out the truck with himself as a driver for $75 per hour. last month john earned $6375 how many of ho
Airida [17]
It would be 85 hours because 6375÷75=85
4 0
3 years ago
Factor by grouping <br> 3x^2 + 11 - 14 <br><br><br><br> plss i need help!
8_murik_8 [283]

Answer:

3x^{2}+11-14 hi

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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