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
Rainbow [258]
2 years ago
8

Please help me with this.

Mathematics
1 answer:
creativ13 [48]2 years ago
7 0

Answer:

-4qr that's the answer I hope is help you

You might be interested in
What is the anser to the equation 2^{2x+2} = 2^{3x}
Marianna [84]

Answer: C) x = 2

2^{2x + 2} = 2^{3x}

Since both terms (above) have the same base, set the exponents to be equal:

2x + 2 = 3x (Rearrange to solve for x)

x = 2

∴ x = 2

8 0
2 years ago
What is 1/10 of 3,000
il63 [147K]
1/10 of 3,000

(1/10)(3000/1)

=(1)(3000)/(10)(1)

=3000/10

=300


7 0
3 years ago
Read 2 more answers
Find the standard form of the equation of the parabola with the given characteristics. Vertex: (-6, 1); focus: (-6, 0)
GREYUIT [131]

Answer: (x+6)^2=-4(y-1)

Step-by-step explanation:

Given

Vertex of the parabola (-6,1)

Focus of the parabola (-6,0)

As the x coordinate of vertex and focus is same and focus lie below the vertex, therefore the parabola is the type of

(x+6)^2=-4a(y-1)

distance between Vertex and focus is 1 unit

\therefore a=1

Parabola becomes

\Rightarrow (x+6)^2=-4(y-1)

8 0
3 years ago
The accompanying frequency distribution represents the square footage of a random sample of 500 houses that are owner occupied y
ioda

Answer:

\bar X = \frac{\sum x_i f_i}{n} = \frac{1220750}{500}=2441.5

s^2= \frac{3408029125 -\frac{(1220750)^2}{500}}{500-1} =856849.7

s= \sqrt{856849.7}=925.662

Step-by-step explanation:

For this case we can create the following table

Interval      Frequency (f)    Midpoint(xi)       xi *f      xi^2* f

0-499              9                       249.5            2245.5   560252.3

500-999         13                      749.5            9743.5    7302753

1000-1499      33                     1249.5          41233.5   51521258.25

1500-1999      115                    1749.5          201193.5  361986278.8

2000-2499     125                   2249.5         281187.5   632531281.3

2500-2999      81                    2749.5          222709.5 612339770.3

3000-3499      47                    3249.5         152726.5   496284761.8

3500-3999      45                    3749.5         168727.5    632643761.3

4000-4499      22                    4249.5         93489        397281505.5

4500-4999      10                     4749.5         47495        225577502.5

Total                500                                      1220750      3408029125

\sum f_i = 500 , \sum x_i f_i = 1220750, \sum x^2_i f_i = 3408029125

For this case we can calculate the sample mean with this formula:

\bar X = \frac{\sum x_i f_i}{n} = \frac{1220750}{500}=2441.5

And for the sample variance we can use the following formula:

s^2= \frac{\sum x^2_i f_i - \frac{(\sum x_i f_i)^2}{n}}{n-1}

And if we replace we got:

s^2= \frac{3408029125 -\frac{(1220750)^2}{500}}{500-1} =856849.7

And the deviation is just the square root of the sample variance and for this case is:

s= \sqrt{856849.7}=925.662

4 0
3 years ago
Rachel finished 3 over 4 of the race in 6 hours. How long was the entire race?
MrRissso [65]

Answer:

8 hours long

Step-by-step explanation:

3/4 of the race in 6 hrs  

6 divided by 3 equals 2  

so 1/4 is 2 hrs, 2/4 is 4 hrs, 3/4 is 6 hrs which means 4/4 the whole race would be 8 hrs  

4 multiplied by 2 would give you 8  

so the entire race was (8 hours long)

4 0
3 years ago
Read 2 more answers
Other questions:
  • Natalia is making gift bags for her son's birthday party. Each bag costs $3.24 to make and she needs to make 15 bags. How much w
    12·2 answers
  • How to do it and how to work it out and stuff
    9·1 answer
  • What is the volume of a 1 cm by 2 cm by 3 cm box? I got 216 cm.
    5·2 answers
  • You can tell that pi is an irrational because it has a what
    11·1 answer
  • In a class of 25 students, 24 of them took an exam in class and 1 student took a make-up exam the following day. The professor g
    9·1 answer
  • Given the equation-4x+2y=-2 what is the slope of a line parallel to the line?
    9·1 answer
  • What is the solution to the equation 9 –3x ≈ 7 ?
    7·1 answer
  • In ms Lacee`s class there are 28 student desks.Each desk measures 26.17 inches long.If you were to line up all the desks end to
    9·1 answer
  • What is π + e its easy
    9·2 answers
  • The measure of each exterior angle of a regular 30-gon is
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!