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
Yuliya22 [10]
3 years ago
7

What quadrilateral has opposite sides equal in length and parallel?

Mathematics
2 answers:
ella [17]3 years ago
5 0
Parallegrom has opposite sides equal in length and parallel
charle [14.2K]3 years ago
5 0
I believe the answer is Parallelogram
You might be interested in
Find the value of this expression if x = -9.<br> x2 + 3<br> x +6
iren [92.7K]

Answer:

Step-by-step explanation:

x² + 3 = (-9)² + 3          {  (-9)² = -9 *-9 = 81}

     = 81 + 3

       = 84

x + 6 = -9 + 6 = -3

7 0
3 years ago
A fossilized leaf contains 18% of its normal amount of carbon 14. How old is the fossil (to the nearest year)? Use 5600 years as
Sati [7]

Answer: The age of the fossilized leaf is 13829 years.

Step-by-step explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  

t = age of sample

a = let initial amount of the reactant = 100

a - x = amount left after decay process = \frac{18}{100}\times 100=18  

a) for completion of half life:  

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

t_{\frac{1}{2}}=\frac{0.693}{k}

k=\frac{0.693}{5600years}=0.00012years^{-1}

b) for finding the age

t=\frac{2.303}{0.00012}\log\frac{100}{18}  

t=13829years

The age of the fossilized leaf is 13829 years.

7 0
3 years ago
Which phrase provides the best definition of sedimentary rocks?
Alexxandr [17]
Option 3 is the best choice
5 0
3 years ago
Read 2 more answers
There are 175 glasses ellen need to wash she washes 68% of the glasses . How many glasses does Ellen have left to wash
blagie [28]

Answer:

175-119= 56

Step-by-step explanation:

because 68%of 175 = 119

so she has washed 119 and 56 are left

8 0
3 years ago
Anyone need help with math i not that good with word problems but i could help
Setler79 [48]

sure. or u could google them...

7 0
3 years ago
Other questions:
  • The weights (in pounds) of six dogs are listed below.
    14·2 answers
  • Andre is preparing for the school play and needs to paint the rectangular cardboard castle backdrop that measures LaTeX: 14\frac
    7·1 answer
  • I don't know how to do this
    5·1 answer
  • Which diagram represents the vector addition C=A+B. Which represents vector subtraction C=A-B?
    7·1 answer
  • Write <br> 45<br> as a product of prime factors.
    10·1 answer
  • Find the value of x.<br> 7<br> 60°
    15·2 answers
  • The sum of two numbers is 60 and the difference is 6. What are the numbers?
    10·1 answer
  • I really need help I’ve been stuck on this question for 10 min now
    9·1 answer
  • A line passes through the point (12,–4) and is perpendicular to the line with the equation y = 6x + 3. What's the equation of th
    5·1 answer
  • Kyle recorded his height, in inches, from age 6 to age 18. The graph below shows the data that he recorded as a function of his
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!