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
____ [38]
3 years ago
11

2. Type the correct answer in each box. Use numerals instead of words. Consider this quadratic equation. x^2+2x+7=21 The number

of positive solutions to this equation is_____ The approximate value of the greatest solution to the equation, rounded to the nearest hundredth is_____.? I don't usually ask for help but it would be nice. ​
Mathematics
1 answer:
navik [9.2K]3 years ago
6 0

Answer:

The number of positive solutions to this equation is one

Step-by-step explanation:

The number of solutions of a given quadratic equation is determine by the discriminant.

You might be interested in
Sally painted a picture that has an area of 480 square inches. The length of the painting is 1 1/5 as long as it is wide. What a
marishachu [46]
So Length * Width = 480 in. sq.
L=1 1/5 or 1.2W
substitute the L for 1.2W
1.2W*W=480 in sq
divide both sides by 1.2
w*w= 400
W²=400
square root of both sides
Width = 20 inches
Length= (1.2width) or (20*1.2)
Length=24 inches
6 0
3 years ago
HEEEEEELP !
iogann1982 [59]

If you meant to write y=23x-4 then none of the lines are perpendicular.

I suspect you intended y=2/3x-4, then line D, y=-3/2x-4 is perpendicular.

For any line y=mx+b, you have to "invert" m to get  a perpendicular line. Inverting in this case means: flip numerator and denominator and add a minus sign.

So 2/3 becomes -3/2, hence answer D.

The 'inverted' m is called the opposite reciprocal. That's your word of the day.


6 0
3 years ago
Solve For H ---I> A=1/2(B₁+B₂)h
Alex

Answer:

  • h = 2A/(B₁+B₂)

Step-by-step explanation:

<u>Given equation</u>

  • A=1/2(B₁+B₂)h

<u>Solving for h</u>

  • A=1/2(B₁+B₂)h
  • 2A = (B₁+B₂)h
  • 2A/(B₁+B₂)= h
  • h = 2A/(B₁+B₂)

3 0
3 years ago
-3(6v-4)+6v=-2(v+3) HOW CAN I SIMPLIFY THIS
ddd [48]
Subtract 12 from each side
so it should look like this
-12v=-2v-18
now add 2v to each side
so it should look like this
-10v=-18
now divdie each side by -10
and you should get
v=9/5 or 1 4/5
8 0
4 years ago
Read 2 more answers
An amusement park ride has cars that move around a circular track at the rate of 16 revolutions in 20 seconds. To the nearest hu
astraxan [27]

Answer:

5.03\frac{rad}{sec}

Step-by-step explanation:

To find the angular velocity divide the revolutions by the time

so

\frac{16}{20}=0.8\frac{rev}{sec}

Remember that

1\ rev=2\pi \ rad

Convert rev/sec to rad/sec

0.8\frac{rev}{sec}=0.8*(2\pi)=1.6 \pi\frac{rad}{sec}

assume \pi=3.1416

1.6(3.1416)=5.03\frac{rad}{sec}

6 0
4 years ago
Other questions:
  • Find the rate of ounces of what I need for each packages of flavoring
    12·1 answer
  • If a plane intersects a sphere, what is the shape of the resulting cross section?
    13·1 answer
  • Jared and Zach are practicing their free throws. Jared attempted x shots and made 75% of them. Zach attempted 10 more shots than
    8·1 answer
  • Look at the figure, FHJM. find the length of HJ​
    5·1 answer
  • Determine if the two triangles are congruent. If they are, State how you know. NO LINKS!!!!! Show work please. Part 3c​
    12·2 answers
  • Find the area of the triangle
    9·2 answers
  • Can someone give me the answers please
    14·1 answer
  • Joe has 16 pounds of fertilizer for his three gardens. He uses ⅜ of the fertilizer in his first garden and ¼ of the fertilizer i
    11·1 answer
  • Find angle 1 and angle 2
    11·2 answers
  • A nonnative fern species is introduced into an area and quickly begins to spread. The number of plants can be modeled by
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!