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
Firlakuza [10]
3 years ago
9

Nature of roots the determining 2x²-13x+15=0

Mathematics
1 answer:
nata0808 [166]3 years ago
3 0

Answer:

Step-by-step explanation:

discriminant = (-13)² - 4·2·15 = 49

discriminant > 0 so there are two real roots

You might be interested in
You want to buy an MP3 player. Your Aunt paid you $20 to mow her lawn and you earn $5 each week
natka813 [3]

Answer:

1. y = 5x + 20

2. $20 the amount you saved mowing your aunt's lawn.

3. 21 weeks

Step-by-step explanation:

1. 5 is the slope because it is the rate. 20 is the y-intercept because that is how much you already have.

2. 20 because that is how much you already have.

3. Since you already have $20, you need to subtract 125 by 20 to get 105. Then you divide 105 by 5 to get 21 weeks.

6 0
3 years ago
Read 2 more answers
Is 5x-7y=3 standard form?
barxatty [35]
Yes it is. Ax+By=C is standard form. :)
7 0
3 years ago
what is the polynomial function of lowest degree with leading coefficient of 1 and roots 2 and 1 + square root2
Marta_Voda [28]
If the roots to such a polynomial are 2 and 1+\sqrt2, then we can write it as

(x-2)(x-(1+\sqrt2))

courtesy of the fundamental theorem of algebra. Now expanding yields

(x-2)(x-1-\sqrt2)=x^2-2x-(1+\sqrt2)x+2(1+\sqrt2)=x^2-(3+\sqrt2)x+2+2\sqrt2

which would be the correct answer, but clearly this option is not listed. Which is silly, because none of the offered solutions are *the* polynomial of lowest degree and leading coefficient 1.

So this makes me think you're expected to increase the multiplicity of one of the given roots, or you're expected to pull another root out of thin air. Judging by the choices, I think it's the latter, and that you're somehow supposed to know to use 1-\sqrt2 as a root. In this case, that would make our polynomial

(x-2)(x-(1+\sqrt2))(x-(1-\sqrt2))=x^3-4x^2+3x+2

so that the answer is (probably) the third choice.

Whoever originally wrote this question should reevaluate their word choice...
5 0
3 years ago
Given that (-3,7) is on the graph of f(x), find the corresponding point for the function f(x + 5).
Stella [2.4K]
We have that
<span>(-3,7) is on the graph of f(x), find the corresponding point for the function
f(x + 5)

we know that
in the transformation f(x)-------> f(x+5)
the point (x.y) in f(x) becomes a point (x-5,y) in f(x+5)
so
(-3,7)-----------> becomes a point (-3-5,7)------> (-8,7)

the answer is
</span>(-8,7)<span>

</span>
7 0
3 years ago
Read 2 more answers
What is the answer to 56-4
Scilla [17]

Answer:

The answer is 52.

Step-by-step explanation:

Subtract 56 by 4. You'll get 52.

5 0
3 years ago
Read 2 more answers
Other questions:
  • In the diagram below, X is a whole number. What is the smallest possible value for X
    8·2 answers
  • If a storm window has an area of 448 square inches what are the dimensions if the window is 12 inches higher than it is wide ( w
    12·1 answer
  • While riding on a carousel, Angela travels a distance of 65 meters every 15 seconds. What is her speed in kilometers per hour? A
    5·1 answer
  • How do you fraction decimals and percents and all of that
    8·1 answer
  • 2 +27+-3 + 5x<br> What is this in standard form?
    13·2 answers
  • If 3 tacos at taco el primo cost $5.31, how much would 8 tacos cost?
    10·2 answers
  • Please answer this correcttly, I will give brainliest if it is correct and you get 13 points
    9·1 answer
  • I neep help asap deadline 4:00pm
    10·2 answers
  • Susan spent a total of 45$ at the grocery store I’d this amount she spent $18 on fruit what percentage of the total did she spen
    14·1 answer
  • Distance between (-4, 6) and (3, 7)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!