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Tju [1.3M]
3 years ago
13

The temperature in Vancouver was recorded over a period of four hours. The equation y = -2x + 43 describes the temperature over

this time, where y is the temperature in degrees Fahrenheit (°F) and x is the number of hours since measurements started. Which of the following statements correctly describes the temperature? A. It was -2°F when the temperature was first measured, and it is rising by 43 degrees per hour. B. It was 43°F after four hours, and it is dropping by 2 degrees per hour C. It was -2°F after four hours, and it is rising by 43 degrees per hour D. It was 43'F when the temperature was first measured, and it is dropping by 2 degrees per hour​
Mathematics
2 answers:
olya-2409 [2.1K]3 years ago
3 0

Answer:

D. It was 43'F when the temperature was first measured, and it is dropping by 2 degrees per hour​

Step-by-step explanation:

A P E X

emmasim [6.3K]3 years ago
3 0

Answer:

D

Step-by-step explanation:

I had the same quiz

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Use Long Division to answer number 4. Please show all work!​
skelet666 [1.2K]

Answer:

2x² + 3x + 4 + (17x + 9) / (x² − 4)

Step-by-step explanation:

Start by setting up the division.  Make sure to write all the coefficients, even the zero ones.

x² + 0x − 4 | 2x⁴ + 3x³ − 4x² + 5x − 7

Start by dividing the first term of the dividend (2x⁴) by the first term of the divisor (x²).  That's 2x²; it'll be the first term in quotient.  Multiply the divisor by 2x²:

2x⁴ + 0x³ − 8x²

Subtract that from the first three terms of the dividend:

3x³ + 4x²

Drop down the next term from the dividend, and start the process all over again.

3x³ + 4x² + 5x

When you finish, the quotient will be 2x² + 3x + 4, and the remainder will be 17x + 9.

4 0
3 years ago
X+2(x+3(x+4(x+5)))=153
Allushta [10]

Answer:

x=1

Step-by-step explanation:

Here first open the inner parentheses and use the distributive property,

4(x+5)=4x+20\\\\(x+4(x+5))=(x+4x+20)=(5x+20)\\\\3(x+4(x+5))=3(5x+20)=15x+60\\\\(x+3(x+4(x+5)))=(x+15x+60)=16x+60\\\\2(x+3(x+4(x+5)))=2(16x+60)=32x+120\\\\x+2(x+3(x+4(x+5)))=x+32x+120=33x+120\\\\\\Hence\ x+2(x+3(x+4(x+5)))=x+32x+120=33x+120\\\\\Rightarrow 33x+120=153\\\\33x=153-120\\\\33x=33\\\\x=1

3 0
3 years ago
A car rental agency has 18 vehicles available, of which 3 are convertibles. What is the probability that a randomly selected veh
Westkost [7]

Answer:

\frac{1}{6}\\

Step-by-step explanation:

To find the probability, divide the number of desired outcomes by the total:

This will be 3/18, since there are 3 convertibles and there are 18 total cars

Simplify 3/18

= \frac{1}{6}

7 0
3 years ago
8. Calculate the amount of simple interest on $15,500 for 4 years at
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Answer:

SI=PTR/100

SI=15500*4*6.5/100

SI=403000/100

SI=4030$

3 0
3 years ago
Solve for y. <br><br> 15 points to anyone who answers. Seriously need help with this!!!
gtnhenbr [62]
The answer to it is x=12
3 0
3 years ago
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