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
Kipish [7]
3 years ago
10

Evaluate 11+(−7)2−911+(−7)2−9.

Mathematics
1 answer:
Tomtit [17]3 years ago
6 0

13( - 7) - 913( - 7) - 9 \\ 4(49) - 913 \\ 196 - 913 =  - 717
You might be interested in
An equilateral triangle has a side length of 16 cm work out the area of the triangle.
bonufazy [111]

Answer:

128cm²

Step-by-step explanation:

A=½×b×h

A=½×16cm×16cm

A=½×256cm²

A=128cm²

4 0
3 years ago
Read 2 more answers
Need help. understand but forgot a step
ki77a [65]
Multiply both sides by 19 to get w=171
4 0
3 years ago
How many hours pass between the two temperatures shown?
Blizzard [7]

Answer:

7 . time os on axis X. total vector lenght is 7.

8 0
2 years ago
Assume that you assign the following subjective probabilities for your final grade in your econometrics course (the standard GPA
rodikova [14]

Answer:

E(X) = 4*0.2 +3*0.5+ 2*0.2 +1*0.8+ 0*0.02= 2.78

So then the best answer for this case would be:

C. 2.78

Step-by-step explanation:

For this case we have the following probabability distribution function given:

Score         P(X)

A= 4.0       0.2

B= 3.0       0.5

C= 2.0       0.2

D= 1.0        0.08

F= 0.0       0.02

______________

Total          1.00

The expected value of a random variable X is the n-th moment about zero of a probability density function f(x) if X is continuous, or the weighted average for a discrete probability distribution, if X is discrete.

If we use the definition of expected value given by:

E(X) = \sum_{i=1}^n X_i P(X_I)

And if we replace the values that we have we got:

E(X) = 4*0.2 +3*0.5+ 2*0.2 +1*0.8+ 0*0.02= 2.78

So then the best answer for this case would be:

C. 2.78

3 0
3 years ago
2. Use the distributive property to rewrite the following expression.<br> 3(x+5)
baherus [9]

The answer is 3x+15

You multiply the x and 5 by 3 to get 3x and 15

6 0
3 years ago
Other questions:
  • Brittany was tracking the increasing temperature in the morning. At 8 a.m., it was 68 degrees Fahrenheit. At 10 a.m., it was 74
    10·1 answer
  • A builder planned to build dog houses for his pets .each dog house will be on 1/3 of an acre of land .how much land will he need
    5·1 answer
  • Y=-1/3x complete the table below
    6·1 answer
  • From a population with standard deviation 25, a sample of size 100 is drawn. The mean of the sample is 235. Construct a 90% conf
    11·1 answer
  • In 2010,85% of the ratings for 1618 video games were E ( for everyone).how many video games received the E rating ?
    9·1 answer
  • 4 x − 3 x + 2 y (simplify)
    9·1 answer
  • Draw a graph of direct proportion, expressed by the formula: y=3x
    10·1 answer
  • Which is closest to the volume of a sphere with a radius equal to 8 centimeters?
    13·1 answer
  • Marissa works in a bread shop every hour
    6·1 answer
  • D. Mrs. Buchanan decided to throw her daughter a sweet sixteen party. She rented a room at a local venue for $500 a night plus $
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!