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
tangare [24]
2 years ago
5

Pleasee help me with this anyone..

Mathematics
2 answers:
vlabodo [156]2 years ago
3 0

Answer:

Step-by-step explanation:

You need to set up a proportion

Let x = NK

7/13 = x/56    Notice that the longest side of the small trapezoid is the denominator of the fraction  on the left. That means that the longest side of the large trapezoid must also be the denominator of that fraction on the right.

Cross multiply

13x = 7*56                Combine the right

13x = 392                 Divide by 13

x = 392/13

x = 30.15

NK = 30.15

skelet666 [1.2K]2 years ago
3 0

Answer:

30.2

Step-by-step explanation:

IJ is proportional to MN, which would give us 13/56. Next, JG is proportional to NK, which would give us 7/x. So, 13/56 = 7/x, 13x = 392, x = 30.15, which rounds to 30.2

You might be interested in
Find the area of the trapezoid.
kakasveta [241]
I think the answer is 47.6 also
6 0
3 years ago
Write an equation for the triangle below.
bixtya [17]

Answer:

x=40

Step-by-step explanation:

solving for x: 4x= 180-20

                       x= 160/4 =40

6 0
3 years ago
3 3/5 × 2 3/4 <br> Answer in mixed number
UkoKoshka [18]

Answer:

9 9/10

Step-by-step explanation:

I just used a calculator, sorry :(

anyways hope this helped! :)

6 0
3 years ago
Read 2 more answers
A local board of education conducted a survey of residents in the community concerning a property tax levy on the coming local b
IrinaK [193]

Answer:

a. [ 0.454,0.51]

b. 599.472 ~ 600

Step-by-step explanation:

a)

Confidence Interval For Proportion

CI = p ± Z a/2 Sqrt(p*(1-p)/n)))

x = Mean

n = Sample Size

a = 1 - (Confidence Level/100)

Za/2 = Z-table value

CI = Confidence Interval

Mean(x)=410

Sample Size(n)=850

Sample proportion = x/n =0.482

Confidence Interval = [ 0.482 ±Z a/2 ( Sqrt ( 0.482*0.518) /850)]

= [ 0.482 - 1.645* Sqrt(0) , 0.482 + 1.65* Sqrt(0) ]

= [ 0.454,0.51]

b)

Compute Sample Size ( n ) = n=(Z/E)^2*p*(1-p)

Z a/2 at 0.05 is = 1.96

Samle Proportion = 0.482

ME = 0.04

n = ( 1.96 / 0.04 )^2 * 0.482*0.518

= 599.472 ~ 600

8 0
3 years ago
What is the difference between x-12=y and y=x-12?
ANEK [815]
There no difference between x-12=y and y=x-12
8 0
4 years ago
Other questions:
  • Find the sum of the polynomials. (3x3 + 4x2 - 2x + 1) + (x4 - x3 + 5x2 + 2x + 3) A. x4 + 2x3 + 9x2 - 4x + 4 B. x4 + 4x3 + 9x2 +
    10·1 answer
  • Solve<br>16a6b8 - 24ab9 / 4a6b8
    6·1 answer
  • A $6,300.00 principle earns 6% interest, compounded annually. After 3 years, what is the balance in the amount?
    8·2 answers
  • Find the 50th term sequence 5 , -2 , -9 , -16
    6·2 answers
  • 10 in.<br>6 in.<br>8 in,<br>7 in.what is the surface area ​
    9·1 answer
  • $23.45 + $3.98 + $16.66 + 12.08=
    10·1 answer
  • Three tickets to attend an Off-Broadway show cost $81, 4 tickets cost $108, and 5 tickets cost $135. Show that the relationship
    14·1 answer
  • In the expression (x^2 + 3), the base is ?
    12·1 answer
  • Guys please help...........................................................................
    8·1 answer
  • Under her cell phone plan, Sydney pays a flat cost of $35.50 per month and
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!