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3 years ago

One day the temperature was 72.8 degrees F. The temperature dropped to -2.7 degrees. difference, please

Mathematics

2 answers:

djverab [1.8K]3 years ago

6 0

Answer:

the difference is 75.5

Step-by-step explanation:

konstantin123 [22]3 years ago

3 0

Answer: 77.5 degrees F

Step-by-step explanation:72.8 + 2.7 = 77.5oF

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Rich is driving from Philadelphia to Pittsburgh at 70 mph and Michelle is driving from Pittsburgh to Philadelphia at 65 mph. If

nignag [31]

The answer is C. 2 hours and 15 minutes. Please refer to the attached document to see the image for better understanding of solution.

Philadelphia = Point A
Pittsburgh = Point B
X = distance traveled by Michelle
(305-X) = distance traveled by Rich

The general formula used is:

$distance = velocity(time)$
$s = v(t)$

Assigning values gives 2 equations:

For Michelle: $X = 65(t)$
For Rich: $(305-X) = 70(t)$

Substituting both equations gives:

X = 146.852 miles
t = 2.26 hours or approximately 2 hours and 15 minutes

Download docx

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3 years ago

Match each exponential function to the description of its percent rate of change. 22% growth 12% decay 2% decay 20% growth 20% d

makvit [3.9K]

The exponential function is defined as y = a(1+r)^x, where "a" represents the original account and "r" the rate of growth or decay.

Then we have the following:

1) 22% grow

y = a( 1 + 22%/100 )^x = a(1.22)^x

So the solution is: 124(1.22)^x

2) 12% decay

y = a( 1 - 12%/100 )^x = a(0.88)^x

So the solution is: y = f(x) = 44(0.88)^x

3) 20% decay

y = a( 1 - 20%/100 )^x = a(0.8)^x

So the solution is: f(x) = 22(0.8)

4) 12% Groth

y = a( 1 + 12%/100 )^x = a(1.12)^x

So the solution is: f(x) = 42(1.12)^x

4 0

3 years ago

Triangle PQR has the coordinates P(2,4), Q(-2,4), R(0,-5).

tensa zangetsu [6.8K]

Answer:

I hope I got this correct.

Step-by-step explanation:

Multiply the coordinates by 2.

P(4,8)

Q(-4,8)

R(0,-10)

For the future if you get stuck, multiply the coordinates by the dilation number.

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2 years ago

What is 8 divided by 33 show your work

8_murik_8 [283]

Answer:

0.24 with a line over the 24. The line means that it is repeating.

Explanation,

There is not much to explain it's just simple divison.

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3 years ago

Shondra was unsure about what career to go into. Her high school counselor suggested a personal assessment to point out Shondra’

sineoko [7]

Answer:

lawer, Police officer criminal justice

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2 years ago