1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
VashaNatasha [74]
3 years ago
14

A professor determined the relationship between the time spent studying (in hours) and performance on an exam. Performance = 70.

443 + 4.885 * (time) Ann studied 2.6 hours for the last exam. However there was a concert in town the night before and her score was 16 points lower than expected. What was her score on this exam, rounded to the nearest integer?
Mathematics
1 answer:
lord [1]3 years ago
6 0
First we need to calculate Ann's predicted score.

Predicted Score = 70.443 + (4.885)(2.6)

Ann's predicted score was 83.114

Since her actual score was 16 points lower than this, we just subtract.

Real Score = 83.114 - 16

Ann's real score was 67.114

When rounded to the nearest interger Ann's score is 67
You might be interested in
A square rug has an inner square in the center. The side length of the inner square is x inches and the width of the outer regio
Gwar [14]

Answer: area of the outer part of the​ rug= 16 -x²

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

Area of a square: Side²

Since the area of the rug including the inner square is:  

Area of the rug = 4² =16 in²

And the area of the inner square is equal to:

Area if the inner square = x²

To obtain the area of the outer part of the rug we have to subtract the area of the inner square to the area of the rug.

Area of the outer part of the rug= 16 -x²

Feel free to ask for more if needed or if you did not understand something.

6 0
2 years ago
Please help no links please
pashok25 [27]
Can you comment to me because it won’t allow me to send it on here it sends me a copy but you won’t be able to click on it

explain
5 0
3 years ago
Read 2 more answers
You drop a ping pong ball into a measuring cup. The water started at 200 mL but after you drop the ping pong ball the water rise
sveta [45]

Answer:

200

Step-by-step explanation:

4 0
2 years ago
What is the value of x?
Oxana [17]

Answer:

180-45= 135

2x-5 = 135

2x = 140

x = 70

7 0
3 years ago
Read 2 more answers
hello this is a thing that i have to do in a few days i posted it earlier bc no one likes to answer my questions anywayy correct
AlekseyPX

Answer:

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • Algebra graph question
    13·1 answer
  • Create the equation used to graph this graph:
    13·1 answer
  • a lottery offers one $1000 prize one $500 and two $50 prizes. one thousand tickets are sold at $2.50. what is the expectived pro
    14·1 answer
  • Point O is on line segment \overline{NP} NP . Given OP=8OP=8 and NO=2,NO=2, determine the length \overline{NP}. NP
    12·1 answer
  • You are purchasing carpeting for an office building. The space to be carpeted is 30 feet by 50 feet. Company A charges $2.99 per
    9·1 answer
  • Helppppppppppppppppppp ill mark you brainlist
    7·1 answer
  • . What is 7/10 as a percent?
    5·2 answers
  • Translate “Twelve less than two-thirds a <br> number is 48” into an equation.
    12·2 answers
  • How do you write 3.707 x 10-8^-8 in standard form? ASAP BRAINLIST ​
    13·1 answer
  • I don't understand this
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!