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
german
3 years ago
11

One side of a roof is in the shape of a trapezoid (similar to the one on Pizza Hut). The top row requires 10 shingles, the secon

d row requires 16 shingles, the third row requires 22, etc. The nth row on the bottom requires 6n + 4 shingles. What is the total number of shingles needed to cover this side of the roof ?
A) n2 + 6n
b) 3n2 + 7n
C) 6n2 + 10
D) 6n2 + 14n
Mathematics
1 answer:
larisa [96]3 years ago
6 0
<span> It would depend on the number of rows?

This is an arithmetic sequence and the sum of n terms is --> n/2(2a+(n-1)d), where a is the first term and d is the common difference. In this case a = 10, d =6

n/2(20+6(n-1)) = 3n^2 + 7n = ANSWER

n = number of rows

</span>
You might be interested in
If ∆SDE ~ ∆SWT, find WT.
boyakko [2]
It’s is 3/78 as the answer to this problem/question you have
6 0
3 years ago
Convert 0.70 hours to minutes round answer to the nearest tenth​
IgorC [24]

Answer:

0.70 hours= 42.0 minutes. All you have to do is multiply the 0.70 by 60.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Y = x² – 4 y = 2r + 4​<br><br>Solve algebraicallu for the solutions of equations below.
oksano4ka [1.4K]

Step-by-step explanation:

Okay, the first step is to rewrite this equation in "vertex form." You can search that up but it's basically just (h/k).

y = ( x − 1) 2 + 3

Now, we are going to use the vertex form, "y = a (x - h)2 + k, to get the values of a, h, and k.

By using the form we get 1 for the value a, 1 for the value h, and 3 for the value k.

1 = a

1 = h

3 = k

Becuse the value of a is positive, the parabola opens up!  (A parabola is the U shaped line in a graph, so that opens up.)

Now, we find the vertex (h,k)

which is (1,3)

Now we find the p from the vertex to the focus.  (vertext the top, focus one of the points.)

Follow this formula to find the distance from the vertex to a focus by using this formula

1/4a.

Now we just gonna substitue 1 for a, since we know that 1 equals a above ^

1/4 * 1

Solving that, we got a nice little 1/4.

Next we find the focus

"Find the focus.

The focus of a parabola can be found by adding p to the y-coordinate k if the parabola opens up or down.

(h,k+p)

Substitute the known values of h, p, and k into the formula and simplify.

(1,134)

Find the axis of symmetry by finding the line that passes through the vertex and the focus.

x=1

Find the directrix.

y=114

Use the properties of the parabola to analyze and graph the parabola.

Direction: Opens Up

Vertex: (1,3)

Focus: (1,134)

Axis of Symmetry: x=1

Directrix: y=114

Select a few x values, and plug them into the equation to find the corresponding y values. The x values should be selected around the vertex.

xy−1704132437

Graph the parabola using its properties and the selected points.

Direction: Opens Up

Vertex: (1,3)

Focus: (1,134)

Axis of Symmetry: x=1

Directrix: y=114

xy−17041324"

(Sorry if this is long! But I hope you understand it better now! Thanks for the points!)

3 0
2 years ago
Help me with these 3 plzz!!! plzzzzz
Harrizon [31]
I tried my best with 1, 2, and 3

6 0
2 years ago
Read 2 more answers
Help only 12 minutes left middle school math
Alex_Xolod [135]

Answer:

C?

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • A mass of 1 slug is attached to a spring whose constant is 5 lb/ft. Initially, the mass is released 1 foot below the equilibrium
    5·1 answer
  • Which is greater 45 hg or 4.5 kg
    12·2 answers
  • What are the coordinates of point c after the blue figure is rotated 180 degrees counterclockwise around the origin and translat
    13·1 answer
  • Please help hahahehhehe
    10·1 answer
  • PLS HELP Will give brainliest
    14·1 answer
  • Convert (1/3)^x=27 to logarithmic form, with work worked out!
    15·1 answer
  • What is an expression equivalent to <br> 4b + 5y - 3b + 8y
    5·1 answer
  • 5,356+2,398
    9·1 answer
  • They are similar or not similar and why?
    12·2 answers
  • The handle of a hammer is 33 cm long. What is the length in inches?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!