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
zzz [600]
3 years ago
10

A survey indicates that there are approximately 120 dairy farms in a given area. If there are exactly 400 farms, and exactly 20%

of them are dairy farms, what is the percent error? Fill in the table below.
Mathematics
2 answers:
kaheart [24]3 years ago
6 0

Answer:

a =  120

b =  80

c =  40

d =  0.5

e =  50%

Step-by-step explanation:

inna [77]3 years ago
5 0

Answer:

120 out of 400 does not equal 20%

it equals 30%

Step-by-step explanation:

You might be interested in
The coordinates on a map for City A are (57, 11) and those for City B are (121, 79). Note that coordinates represent miles. Find
Juliette [100K]

Answer:

93 miles

Step-by-step explanation:

Use the distance formula:

d = \sqrt{(x2 - x1)^2 + (y2 - y1)^2}

Plug in the values:

d = \sqrt{(121 - 57)^2 + (79 - 11)^2}

d = \sqrt{4096 + 4624}

d = \sqrt{8720}

d = 93.4

= 93 miles

4 0
3 years ago
Read 2 more answers
Answer this please! It would help me alot. :)
vagabundo [1.1K]

Answer:

Equivalent. 0.4(k+3)=0.4k+1.2

Step-by-step explanation:

x means multiplication. k is the variable.

Hi.

So, you have to distribute the 0.4 into the parenthesis to get rid of them. So, you do 0.4xk, which is just 0.4k, and 0.4x3, which is 1.2. So, you have 0.4k+1.2, which means it is Equivalent.

8 0
1 year ago
Find the zeros of x^2+4x=-10 using the quadratic formula
ipn [44]
X^2+4+10=0
x=(-4(+/-)root16-40)/2, so we now know that the zeros are imaginary, because you can't square root a negative number and 16-40 is -24
so the two roots are…
-2+iroot6 and -2-iroot6

7 0
3 years ago
Read 2 more answers
For what value of k does the equation 6(x + 1) + 2 = 3(k5x + 1) + 3 have no solution?
NARA [144]

Answer:

k = (6/15)

Step-by-step explanation:

The equation is:

6*(x + 1) + 2 = 3*(k*5*x + 1) + 3

To have no solutions, we need to have something like:

x + 7 = x + 4

where we can remove x in both sides and end with

7 = 4

So this equation is false, meaning that there is no value of x such that this equation is true, then the equation has no solutions.

First, let's try to simplify our equation:

6*(x + 1) + 2 = 3*(k*5*x + 1) + 3

6*x + 6 + 2 = 3*k*5*x + 3*1 + 3

6*x + 8 = 15*k*x + 6

if 15*k = 6, then the system clerly has no solution.

then:

k = 6/15

then we get:

6*x + 8 = (6/15)*15*x + 6

6*x + 8 = 6*x + 6

8 = 6

The system has no solutions.

8 0
2 years ago
Which is the ratio 12 to 27 expressed as a fraction in lowest terms
raketka [301]

Answer:

4/9

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone personally help me with geometry and area? Please I have more questions like that
    9·2 answers
  • How to write a fraction into a decimal
    6·2 answers
  • A prism is completely filled with 2304 cubes that have edge length of 1/4 cm
    9·2 answers
  • What’s the answer to 14 and 18?
    5·2 answers
  • What is the solution to the equation 30.16 = 17.56 + 5x
    7·1 answer
  • Help I need help with this plz help
    14·1 answer
  • Please help me solve the question ​
    11·2 answers
  • Answer the following:4-(-3),-2-(-7),-9-(-4)
    13·2 answers
  • A circle is centered at (−3, 2) and has a radius of 2. Which of the following is the equation for this circle?
    12·1 answer
  • Two students compared the scores on their math tests. Their results on 9 tests are shown in the box plots below.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!