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
ivolga24 [154]
3 years ago
6

Please solve!!!! Solve for x to the nearest tenth.

Mathematics
1 answer:
ki77a [65]3 years ago
6 0

x = 11.2 this is rounded to the nearest tenth :)

You might be interested in
A carpect salesperson claims that a carpet on sid for $12.95 per square yard is 30% off its original price. What was its origina
Amiraneli [1.4K]
12.95      30
-------- =  ----
 x            100

1295  = 30x
-------    -----
30          30

x = 43.16666667
 
not sure how u want to round
8 0
3 years ago
Read 2 more answers
1.What are the zeros of the polynomial function?
Lorico [155]
Let's to the first example:

f(x) = x^2 + 9x + 20

Ussing the formula of basckara

a = 1
b = 9
c = 20

Delta = b^2 - 4ac

Delta = 9^2 - 4.(1).(20)

Delta = 81 - 80

Delta = 1

x = [ -b +/- √(Delta) ]/2a

Replacing the data:

x = [ -9 +/- √1 ]/2

x' = (-9 -1)/2 <=> - 5

Or

x" = (-9+1)/2 <=> - 4
_______________

Already the second example:

f(x) = x^2 -4x -60

Ussing the formula of basckara again

a = 1
b = -4
c = -60

Delta = b^2 -4ac

Delta = (-4)^2 -4.(1).(-60)

Delta = 16 + 240

Delta = 256

Then, following:

x = [ -b +/- √(Delta)]/2a

Replacing the information

x = [ -(-4) +/- √256 ]/2

x = [ 4 +/- 16]/2

x' = (4-16)/2 <=> -6

Or

x" = (4+16)/2 <=> 10
______________

Now we are going to the 3 example

x^2 + 24 = 14x

Isolating 14x , but changing the sinal positive to negative

x^2 - 14x + 24 = 0

Now we can to apply the formula of basckara

a = 1
b = -14
c = 24

Delta = b^2 -4ac

Delta = (-14)^2 -4.(1).(24)

Delta = 196 - 96

Delta = 100

Then we stayed with:

x = [ -b +/- √Delta ]/2a

x = [ -(-14) +/- √100 ]/2

We wiil have two possibilities

x' = ( 14 -10)/2 <=> 2

Or

x" = (14 +10)/2 <=> 12
________________


To the last example will be the same thing.

f(x) = x^2 - x -72

a = 1
b = -1
c = -72

Delta = b^2 -4ac

Delta = (-1)^2 -4(1).(-72)

Delta = 1 + 288

Delta = 289

Then we are going to stay:

x = [ -b +/- √Delta]/2a

x = [ -(-1) +/- √289]/2

x = ( 1 +/- 17)/2

We will have two roots

That's :

x = (1 - 17)/2 <=> -8

Or

x = (1+17)/2 <=> 9


Well, this would be your answers.


7 0
3 years ago
HELP ASAP !!! <br> Which of the following are identities? Check all that apply.
anastassius [24]

Answer:

A,CAND D

Step-by-step explanation:

ADD ME AS BRAINLIEST

6 0
3 years ago
Read 2 more answers
a stone is thrown downward with an intitial velocity of 29.5 m/sec will travel a distance of a meters, where s(t) = 4.9t^2 + 29.
Alenkinab [10]

Answer:

t = 9 s

Step-by-step explanation:

A stone is thrown downward with an intitial velocity of 29.5 m/sec will travel a distance of a meters, where

s(t) = -4.9t^2 + 29.4+132.3

We need to find when the stone will hit the ground. It means when s(t) = 0. So,

-4.9t^2 + 29.4t+132.3=0\\\\t=-3\ and\ t=9

So, the stone will take 9 seconds to hit the ground. Hence, this is the required solution.

5 0
3 years ago
Plzzzzz HELPPPPPPPPPPPPP
adoni [48]

Answer:

125 - 12 /3 = 125 - 4 = 121

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Find the average speed of a plane that leaves Bristol at 14.00 and lands in Rome at 17.15.The distance is 1200 miles
    6·1 answer
  • Lauren would like to find the midpoint of a line segment that has endpoints at (–0.5, 3) and (4, 7.5). Which statements are true
    14·2 answers
  • Use the distributive property to write the following expression WITH parentheses:<br><br> 6x+18
    7·1 answer
  • What is a = 1/2 (b-c) if b is the subject
    12·1 answer
  • {75-[(15 entre 3)x(2x5)+2]}-2<br> How
    6·1 answer
  • Solve for x..........................
    12·1 answer
  • Math pls pls help help no trolls i really need this grade​
    6·1 answer
  • Marcos sees a cake advertised as $15 or 2 for $25. What is the difference of the unit rate?
    10·1 answer
  • Find the mean, median, and mode for 0, 4, 6, 11, 9, 8, 9, 1, 5, 9, 7. Round to the nearest tenth if needed.
    10·1 answer
  • Help I have 30 in Math
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!