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
Andrej [43]
3 years ago
13

For every hour that Noah studies, his test score goes up 3 points. Explain which is the independent variable and which is the de

pendent variable. Write an equation modeling the relationship between hours studied h and the increase in Noah's test score s.
Mathematics
2 answers:
Mnenie [13.5K]3 years ago
5 0
The independent variable is the test hours that he studies; because they are not affected by any of the other variables. The dependent variable is the test score; because the amount of the test score depends on the variable of the studied hours. 

t=test score
h=hours studied
 
t+h3

Not sure about the equation though. Might wanna check that. Hope this helps!

Arturiano [62]3 years ago
4 0
The independent variable is hours and the score or points is the dependent variable .equation is s=3h
You might be interested in
Select from the matches below to correctly complete the statements. I'll give brainliest to someone with correct answer!
Aneli [31]

Answer:

<h3>The correct matches as follows :</h3>

1) The product of a linear monomial and a linear monomial is a - quadratic monomial

2) The product of a quadratic monomial and a quadratic trinomial is a - quartic trinomial

3) The product of a linear monomial and a linear binomial - Quadratic binomial

Step-by-step explanation:

The correct matches as follows :

1) The product of a linear monomial and a linear monomial is a - quadratic monomial

<h3> Monomial is a linear expression having only term with degree 1 (variable)</h3>
  • For Example : Let x and y be two monomials which is linear
  • If we product the two linear monomials we get
  • x\times x=x^2 which is a quadratic monomial

2) The product of a quadratic monomial and a quadratic trinomial is a - quartic trinomial

<h3>For example : Let x^2 be the Quadratic monomial has one term with degree 2 and x^2+2x+3 be the quadratic trinomial ( has 3 terms with degree) </h3>
  • If we product the quadratic monomial and quadratic trinomial we have
  • x^2\times (x^2+2x+3)=x^2(x^2)+x^2(2x)+x^2(3)
  • =x^4+2x^3+3x^2
  • Therefore x^2(x^2+2x+3)=x^4+2x^3+3x^2 which is a quartic trinomial has degree 4 with three terms

3) The product of a linear monomial and a linear binomial - Quadratic binomial

<h3>For example : Let x be the linear monomial and x^2+5 be the linear binomial has two terms with degree 1</h3>
  • If we product the linear monomial and quadratic binomial we get
  • x\times (x+5)=x(x)+x(5)
  • =x^2+5x
  • Therefore x\times (x+5)=x^2+5x which is a quadratic binomial with degree 2

5 0
3 years ago
What is the unknown number for t
soldi70 [24.7K]
This could be wrong but the answer should be 4
3 0
3 years ago
What is the slope of the line shown? need ASAP its due at 12 i will give brain list
Mamont248 [21]

Answer:

\frac{1}{2} x

Step-by-step explanation:

(1/2)x

use rise over run

how many units up/down and units right/left

Down and left means negative

5 0
3 years ago
Grades on a standardized test are known to have a mean of 1000 for students in the US. The test is administered to 453 randomly
Mademuasel [1]

Answer:

a:  1003 < µ < 1023

b:  See attached photo for answers

c:  see below

d and e:  See second attached photo

f:  See below

Step-by-step explanation:

a.  to find a confidence interval, first find the error with the formula,

E = Z(σ/√n)  where Z is the value of the z-score that relates to the confidence level, σ is the standard deviation of the population (or of the sample if the population standard deviation isn't given), and n is the sample size

For this problem, E = 1.96(108/√453) = 9.95 = 10

Now add and subtract that value form the sample average...

x - E < µ < x + E      becomes    1013 - 10 < µ 1013 + 10

simplifies to 1003 < µ < 1023

b.  See attached photo for hypothesis test results...

c.  H0:  µ = 1013  

    Ha:  µ > 1013 (claim)

They want to test if it's greater than their first attempt,  so this claim becomes the alternate hypothesis.  We're testing against their first attempt, that's why µ = 1013, not 1000

d and e.  See second attached photo for hypothesis test results...

f.  There is enough evidence to support the claim that the students second attempt was an improvement from their first attempt.  They happened to take a 2 hour tutoring course between tests.  This doesn't prove that the tutoring was effective thought.  It very well might have been effective, but also, the students taking the test again means they've already seen the test and know what to expect, which could have also boosted their scores.  

8 0
4 years ago
Chiara bought 3 yards of fabric for $8.00.She realized she needs 2 extra yards. How much will the extra fabric cost?
Arada [10]
Assuming she buys every yard of fabric for the same price, we divide $8 by 3 to find the price of 1 yard of fabric. Then we multiply 8/3 by 2 to find the cost of 2 yards of fabric. 

$8/3 *2 = $16/3 =$ 5 1/3 = $5.3333
4 0
3 years ago
Other questions:
  • Tom and his friend Edward are seeking to join the gym. Tom saw on television that platinum Jim was having a grand opening in a f
    15·2 answers
  • Carly bought 20 golf balls. The balls came in p packages. Write an expression that shows how many golf balls were in each packag
    6·2 answers
  • Solve 5y 2 = 405 9 ±9 ±81
    8·1 answer
  • In a 45-45-90 triangle, what is the length of the hypotenuse when the length of one of the legs is 8 in.?
    8·1 answer
  • Help me please..................
    15·2 answers
  • Find the volume, help please all numbers are in inches, will mark brainleist ​
    6·1 answer
  • A right triangle has a leg of 13 cm and a hypotenuse of 21 cm.
    14·2 answers
  • In ΔMNO, the measure of ∠O=90°, the measure of ∠M=39°, and MN = 5.3 feet. Find the length of NO to the nearest tenth of a foot.
    14·1 answer
  • What happens to the order of operations when you’re solving a two-step equation?
    13·2 answers
  • Question 17 of 25
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!