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
liq [111]
2 years ago
11

Evaluate the expression for the given value of the variable(s).

Mathematics
1 answer:
ikadub [295]2 years ago
4 0
<span>-x^2 - 4x when x = -3
-(-3)^2 -4(-3)
= - 9 + 12 
= 3

answer is </span><span>B. 3 </span>
You might be interested in
A map has a scale of 1 cm: 5 km. Determine how far apart two cities are if they are 8 cm apart on the map.
MaRussiya [10]

Answer:

i believe the answer is 40km.

6 0
2 years ago
Read 2 more answers
Each big square below represents one whole.
SashulF [63]

Answer:

91%

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The store keeper sold 9 1/4 yards from a piece of material containing 53 yards. How much was left in the original piece?
11111nata11111 [884]
43 3/4 was left in the original piece.
8 0
3 years ago
Read 2 more answers
Estimate the question of 123.8 divided by 62
Nadusha1986 [10]

Answer:

It should be 2

Step-by-step explanation:

If you where to round to the nearest 10nth

5 0
3 years ago
Annual income: The mean annual income for people in a certain city (in thousands of dollars) is 41, with a standard deviation of
USPshnik [31]

Answer:

By the Central Limit Theorem, the distribution of the sample means is approximately normal with mean 41 and standard deviation 2.92, in thousands of dollars.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Mean of 41, standard deviation of 28:

This means that \mu = 41, \sigma = 28

Sample of 92:

This means that n = 92, s = \frac{28}{\sqrt{92}} = 2.92

Distribution of the sample means:

By the Central Limit Theorem, the distribution of the sample means is approximately normal with mean 41 and standard deviation 2.92, in thousands of dollars.

4 0
2 years ago
Other questions:
  • How do i solve this system of equations
    11·2 answers
  • Which of the following statements is true?
    12·2 answers
  • Ming spent $15 at the movies. Then she earned $30 babysitting. She spent $12 at the bookstore. Now she has $18 left. How much mo
    10·1 answer
  • Solve for x.<br> x/4≥−8<br><br> A.) x≤−32<br><br> B.) x≤−2<br><br> C.) x≥−32<br><br> D.) x≥−2
    8·1 answer
  • Shana wants to use all 62 feet of the fencing she has to make a rectangular run for her dog. She decides to make the length of t
    5·2 answers
  • Jim drove 605 miles in 11 hours. At the same rate, how many miles would he drive in 13 hours?
    10·1 answer
  • Someone help me with this ASAP I’ll mark u as brilliant
    5·1 answer
  • Given the speeds of each runner below, determine who runs the fastest.
    5·1 answer
  • 16. Calculate the slope of the line that passes through the points (-6, -8)<br> and (-2,3)
    9·2 answers
  • Find the simplified product<br> ^3V9x^4 x ^3V3x^8
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!