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
Nadusha1986 [10]
3 years ago
5

Do all parallelograms have at least one line of symmetry

Mathematics
1 answer:
swat323 years ago
6 0
I don't think parallelograms have symmetry
You might be interested in
The net worthw(t) of a company is growing at a rate of′(t) = 2000−121t2dollarsper year, wheretis in years since 1990.(a) If the
stiv31 [10]

Answer:

The worth of the company in 2000 is $56,000.

Step-by-step explanation:

The growth rate of the company is:

f'(t)=2000-12t^{2}

To determine the worth of the company in 2000, first compute the change in the net worth during the period 1990 (<em>t</em> = 0) to 2000 (<em>t</em> = 10) as follows:

\int\limits^{10}_{0} {2000-12t^{2}} \, dt =\int\limits^{10}_{0} {2000} \, dt-12\int\limits^{10}_{0} {t^{2}} \, dt=2000 |t|^{10}_{0}-12|\frac{t^{3}}{3}|^{10}_{0}\\=(2000\times10)-(4\times10^{3})\\=20000-4000\\=16000

The increase in the company's net worth from 1990 to 2000 is $16,000.

If the company's worth was $40,000 in 1990 then the worth of the company in 2000 is:

Worth in 2000 = Worth in 1990 + Net increase in company's worth

                        =40000+16000\\=56000

Thus, the worth of the company in 2000 is $56,000.

4 0
3 years ago
Twenty girls​ (ages 9-10) competed in the​ 50-meter freestyle event at a local swim meet. The mean time was 43.70 seconds with a
iragen [17]

Answer:

Right or positively skewed

Step-by-step explanation:

From the median and the interquartile range we can find the first and third quartile values Q3=40.15+(4.98/2)=42.64 and Q1=37.66.

Now we have enough evidence to conclude that is Right or positively skewed

1. The mean is above the median

2. The mean is 43.70, which is above the third quartile (42.64), meaning that after the mean there's less than 30% of the data.

The evidence suggests that most of the data is concentrated at the bottom of the distribution making it right or positively skewed.

3 0
3 years ago
How do i solve 42 = -2d + 6
Mazyrski [523]
Substract 6 to both sides and you get 36 =-2d then you use the multiplicative inverse and d=-18.
8 0
3 years ago
Read 2 more answers
The superintendent of a school district wanted to predict the percentage of students passing a sixth-grade proficiency test. she
Orlov [11]

Answer:

B. H1= b1=0

Step-by-step explanation:

the alternative hypothesis is correct

7 0
3 years ago
Which choice is equivalent to the expression below? 2sqrt(7) + 8sqrt(7)
dexar [7]

Answer:

Dear Twinkie

Answer to your query is provided below

10√7 is the expression equivalent for 2√7+8√7.

5 0
3 years ago
Other questions:
  • Math second grade (plz help me)
    10·2 answers
  • give the coordinates (-6,5) and (4,-8) find the distance between the two points. Round your answer to the nearest tenth
    12·1 answer
  • 125,328 to the nearest 1000
    6·2 answers
  • What is the 8th term of the arithmetic sequence with a first term of 7 and a common difference of -3?
    11·2 answers
  • Regina purchased 1.75 pounds of turkey breast from her local deli for $5.99 per pound. To the nearest cent, how much did she spe
    9·2 answers
  • Y-3/4x=-3/3 what does y equal
    14·1 answer
  • My sister is 18 years old. My brother says that his age minus nineteen Is equal
    5·2 answers
  • Donte used mental math to find the exact sum of 386 and 14. Which strategy could Donte have used?
    12·2 answers
  • A rectangle has an area of 186m2
    13·1 answer
  • Solve the system. 3y = - x + 11, x + 4y = 14
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!