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
aleksley [76]
3 years ago
7

Explain why the graph of

k+1" alt="y=2x^{2} +4x-k+1" align="absmiddle" class="latex-formula"> has no x-intercepts when k=-5
Mathematics
1 answer:
Oksana_A [137]3 years ago
3 0
Since the equation then turns into y=2x^2+4x+5+1, the +5+1 moves the vertex higher up on the y axis, meaning there would be no x-intercepts
You might be interested in
Four football fans took turns driving the distance from new York to Oklahoma to see a big game
Snezhnost [94]
I'm sorry but what's the full question?
4 0
3 years ago
Im not sure how to do this or what function to use SIN, COS, or TAN but if you could walk me through it that would be so so so a
Elanso [62]

Answer: 3.8

Step-by-step explanation:first, you need to figure out what side you’re looking for. Side AC is opposite of the angle you’re given. They also give you length of side AB which is 4. That is the hypotenuse (side directly across from right angle). So, you have the hypotenuse, and need the find the opposite side measure. Which option uses opposite and hypotenuse? That’s Sin. So, you would do: sin70 = ? / 4.

sin (of given angle)= opposite / hypotenuse.

Sin (70 degrees) = ? / 4

Then you solve for “?”

Type sin70 into your calculator, then multiply both sides by 4 to get “?” by itself. You should get 3.758770483, which rounds to 3.8

5 0
2 years ago
The cube root of 5 times the square root of 5 over the cube root of 5 to the 5th power
Fiesta28 [93]
(cube root of 5)  * sqrt(5)
--------------------------------- = ?
(cube root of 5^5)

This becomes easier if we switch to fractional exponents:


  5^(1/3) * 5^(1/2)         5^(1/3 + 1/2)       5^(5/6)
------------------------ = --------------------- = ------------- = 5^[5/6 - 5/3]
[ 5^5 ]^(1/3)                  5^(5/3)                 5^(5/3) 

Note that 5/6 - 5/3 = 5/6 - 10/6 = -5/6.

                                                            1
Thus,  5^[5/6 - 5/3] = 5^(-5/6)  =  --------------
                                                        5^(5/6)

That's the correct answer.  But if you want to remove the fractional exponent from the denominator, do this:

    1            5^(1/6)         5^(1/6)
---------- * ------------- = --------------    (ANSWER)
5^(5/6)       5^(1/6)              5
7 0
3 years ago
(m^(6)n^(3))/(m^(2)n^(6))
mario62 [17]

Answer:

(m^4)/(n^3)

Step-by-step explanation:

See attachment

7 0
2 years ago
Verify that ABC is a right triangle by showing that the sum of the areas of the squares formed with sides a and b is equal the a
sweet-ann [11.9K]

Step-by-step explanation:

Pythagoras' theorem shows that a^2+b^2=c^2. Not sure how else to help here.

5 0
3 years ago
Read 2 more answers
Other questions:
  • hi, I got assigned stupid khan academy as homework and if I don’t get 900 points I’m screwed. Can anybody help please?
    9·1 answer
  • Question part points submissions used how many tangent lines to the curve y = x/(x + 1) pass through the point (1, 2)
    7·1 answer
  • Please help I’m not sure how to do this
    6·2 answers
  • You want to put some money in a simple interest account.it pays 6% interst annually for 2 years . you would like to earn $750 in
    13·1 answer
  • The product of a rational and irrational number is rational. always sometimes never
    9·1 answer
  • What is the greatest whole number that rounds to 2,800 when rounded to the nearest​ hundred? The least whole​ number?
    15·1 answer
  • How do you factor 5y2 - 12x - 9
    7·1 answer
  • Pls help me <br> god bless u
    12·1 answer
  • Paper clips and sand is a Mixture or Solution?
    8·1 answer
  • 136&lt;5(-2-4b)-6
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!