Jessa bought a yoyo from a company that claims that, with each retraction, the string rolls up by 60% of the original length. She sets up a tape measure and throws the yoyo 3 times. Her data are charted below.Throw Length of string (feet)
1 3
2 1.8
3 1.08
Jessa wants to find the sum of the length of string after 10 throws. Choose the answer that shows the sum of the lengths rounded to the nearest hundredth.
A. 0.03 foot
B. 2.50 feet
C. 7.50 feet
D. 7.45 feet
Answers
a(n) = a r^(n-1)
a = first term = 3
r = common ratio = 0.6
n = number of terms = 10
substituting the values:
a(n) = 3 * (0.6)^(10-1)
a(n) = 3 * (0.6)^9
a(10) = 0.030
Sum of the ten terms = 3 (1-0.6^10)/1-0.6
= 2.98/0.4
= 7.45
Answer:
7.45
Explanation:
took the test
Related Questions
All of the following are sources of renewable energy except __________ energy.a. solar b. hydroelectric c. natural gas d. biofuel
Why are concentration gradients important to cells
Which lists the correct order of evolutionary history?
What characteristic is shared by both inceptisols and entisols, the soils of flood plains? a. They both have well-developed soil horizons and profiles. b. Both are young and only beginning to develop horizons and a soil profile. c. They are both at the final stage of soil development. d. None of the above
b. combustion
c. ignition
d. melting
Answers
Answer: B. Combustion
Lavoisier’s oxygen theory of combustion was one of his most notable contribution to science and earned him the title of the “father of modern chemistry”. He recognized the combustible property of oxygen and that phosphorus and other metallic elements increased in terms of weight when burned.
The answer is B: Combustion
B. Glucose
C. Carbon Dioxide
D. Water
Answers
The glucose is the chemical food source for the soybean plants. The correct option is B.
What is glucose?
Glucose, also known as dextrose, is a type of carbohydrate known as a simple sugar, this can be found in both plants as well as animals.
The molecular formula for glucose is . It is found in fruits and honey and is the most abundant free sugar in the blood of higher animals.
Plants use the sun's energy to convert water and carbon dioxide into glucose, a sugar.
Plants use glucose for energy and to make other substances such as cellulose and starch. Cellulose is used to form the basic cellwalls. Starch is stored as a food source in seeds and other plant parts.
The chemicalsource of food for the soybean plants is glucose as per the given scenario.
Thus, the correct option is B.
For more details regarding glucose, visit:
#SPJ2
Answer:
B. Glucose This is the correct answer, my daughter just took the test
Explanation:
Answers
Answers
Answer:
It is a sustainable source of Energy. Is clean energy that we can harness and explode for the benefit of mankind. Remember that fossil fuel energy will not always be available, it pollutes the planet and is very expensive. Solar energy is a term that can be used and it will be applied mostly in the electricity industry.
Explanation:
Many companies already are looking for this system as a good option to gain energy.
You do not need to worry about if this is correct. I know for a fact that it is correct because I just took a test on this, and I made a 100. So the answer is non-polluting!
Have a nice day!
Hope this helped!
B. Tailbone of a human
C. Tail of a monkey
D. Flower of a plant
Answers
Answer: Tailbone of human
Explanation: The organs in the human body that are of no use now. These structures have lost their original functions in the body of the organism.
Although the vestigial organs have lost their original functions but it can develop new functions over time.
Example: Tailbone of humans, wisdom teeth are no longer used in human beings.