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
MrRa [10]
3 years ago
13

11a+9=4a+30 how do i solve for a

Biology
1 answer:
Vesnalui [34]3 years ago
6 0
11a+9=4a+30
11a-4a=30-9
7a=21
a=3
You might be interested in
Describes the structure of nucleic acids
dem82 [27]

The secondary structure is responsible for the shape that the nucleic acid assumes. The bases in the DNA are classified as purines and pyrimidines. ... A purine base always pairs with a pyrimidine base (guanine (G) pairs with cytosine (C) and adenine (A) pairs with thymine (T) or uracil (U)).

3 0
3 years ago
Regression analysis is:
Ksivusya [100]

Answer: Option A.

Explanation:

Regression analysis is a statistical model for estimating the relationships among different variables.

Regression analysis helps to predict the value of the dependent variable which changes when any one of independent variables varies, while other independent variables remain fixed.

Generally Regression analysis are classified in linear and non-linear regression.

Hence, the correct option is A.

4 0
3 years ago
Does Kudzu help with soil erosion in the environment Explain why or why not
horrorfan [7]

Solution:

The correct answer is:

Yes, Kudzu helps prevent erosion.

Explanation:

Kudzu is a leafy vine that can prevent soil erosion. This is due to its wide leaves and strong root system that prevents soil erosion. In fact, Kudzu exhibits a symbiotic relationship with nitrogen-fixing bacteria, which may help explain their successful growth on heavily eroded sites. The kudzu cover prevents soil erosion because produces a high density of organic matter and this slows down the speed of rainwater. Also, Kudzu maintains soil moisture and prevents runoff even on steep slopes.

3 0
1 year ago
Why is the sarcoplasmic reticulum. How does it aid in the stimulation of muscle contraction?
Mandarinka [93]
Activation of muscle contraction could be a speedy event that's initiated by electrical activity within the surface membrane and transversal (T) tubules. This can be followed by unharness of metal<span> from the inner membrane system, the sarcoplasmic reticulum.
</span>Nervous stimulation causes a depolarization<span> of the muscle membrane (sarcolemma) </span>that<span> triggers </span>the discharge<span> of </span>calcium<span> ions from the sarcoplasmic reticulum.</span>
8 0
3 years ago
Read 2 more answers
A science student makes the following statement. A raccoon may live longer when it eats only vegetables. What is the student doi
Elena-2011 [213]
The student is likely engaging or forming a hypothesis in which a hypothesis is a scientific method of having to formulate an intelligent or educated guess that may be an answer as to how a problem has occurred in which the student thinks that the racoon may live longer if it only eats vegetables.
3 0
3 years ago
Other questions:
  • A scientist wrote a paper titled “Directional Selection in Action” after observing a population of mice for 15 years. The mice t
    11·1 answer
  • The cell membrane controls what enters and leaves the cell. Which of the
    6·1 answer
  • Which of the following best describes how the structure of ice benefits the organisms that live in the water below?
    13·1 answer
  • Without spores, fungi could not:
    6·1 answer
  • To see a general view of a microscope slide, use _____ power. If you need to see a more specific and detailed view, use _____ po
    7·1 answer
  • Plz help it due today
    15·1 answer
  • FREE POINTS!!! <br> please only answer if you know is right! :))
    11·2 answers
  • Where is the water table located?
    14·2 answers
  • Why is family history thought to be important and a good predictor of an individual’s disease risk factor?
    5·1 answer
  • Pls help me its only 5 questions
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!