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
BARSIC [14]
3 years ago
8

Can someone help me solve this?

Mathematics
1 answer:
nikdorinn [45]3 years ago
5 0
So...the tent, seems to be the first picture below

the second picture, is just a break-down of the pyramid

\bf \textit{area of a square}=A=a^2=4.9\implies a=\sqrt{4.9}
\\\\\\
\textit{slant height will be}=c^2=\left( \frac{\sqrt{4.9}}{2} \right)^2+1^2
\\\\\\
c^2=\cfrac{4.9}{4}+1\implies c^2=\cfrac{89}{40}\implies c=\sqrt{\cfrac{89}{40}}

so... that's the value of "a" and the "c" or "slant height", namely the missing slanted side on that second picture

we need the slant height, in order to get the area of that triangular face, and the base of that triangle is, just "a"

since the area of a triangle is 1/2 bh, and the base is "a" and the altitude or height here is the slant height "c", then the area of that triangular face is \bf \left( \cfrac{1}{2} \right)\left( \sqrt{4.9}\right)\left( \sqrt{\cfrac{89}{40}} \right)

and the area of the lateral sides for the prism, are " a * 1.5"  or \bf \sqrt{4.9} \cdot 1.5

so, you have 4 triangles, and 4 rectangles to be added, so.. .let's do that, to get the canvas then

\bf \begin{array}{clclll}
4\left[ \left( \cfrac{1}{2} \right)\left( \sqrt{4.9}\right)\left( \sqrt{\cfrac{89}{40}} \right) \right]&+&4[(\sqrt{4.9})(1.5)]\\
\uparrow &&\uparrow \\
\textit{4 triangles}&&\textit{4 rectangles}
\end{array}

that'd be the area of the canvas, or namely, the surface area

notice, we are not including the base of the pyramid, because that's inside the tent, and excluding the base of the prism, because that'd be the ground, and the tent may not include that, well, depends on the tent, in this case, I think a tent this big may not, other smaller ones do though




You might be interested in
Which best describes the polygon whose vertices in the coordinate plane are (–3,0) (3, 0), (0, –3)?
Alex Ar [27]
It would be only regular 
5 0
3 years ago
I need help with this question please I’ll mark as brainliest
Dmitriy789 [7]

Answer:

C

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (8, - 14), thus

y = a(x - 8)² - 14

To find a substitute (5, 13) into the equation

13 = a(5 - 8)² - 14

13 = a(- 3)² - 14

13 = 9a - 14 ( add 14 to both sides )

27 = 9a ( divide both sides by 9 )

a = 3

Thus

y = 3(x - 8)² - 14 → C

7 0
2 years ago
Algebra stratigies? what are some? I need answer Fast
Natali [406]
There are many strategies that can be used it really depends on what kind of questions you're answering.
5 0
3 years ago
Read 2 more answers
The blue dot is at what value on the number line the video does not show up and the hints don’t let me pls help me
pshichka [43]
I think the answer is 17. The scale is going up by two.
8 0
3 years ago
An equilateral ∆ has sides of length 16 cm. Find the length of an altitude.
inn [45]

The length of the altitude is 8\sqrt{3}

Explanation:

Let ABC be an equilateral triangle.

It has sides of length 16 cm

Let AD be the altitude of the triangle.

We need to determine the length of an altitude.

Let AC = 16 cm and CD = 8 cm

Let us consider the right angled triangle ADC

Using the Pythagorean theorem, we have,

AC^2=AD^2+DC^2

Substituting the values, we get,

 16^2=AD^2+8^2

 256=AD^2+64

 192=AD^2

8\sqrt{3}=AD

The length of the altitude is 8\sqrt{3}

5 0
3 years ago
Other questions:
  • The minute hand of a clock is 3 inches long. how far does the tip of the minute hand move in 20 minutes? if necessary, round the
    7·1 answer
  • Does anyone know how to do this?
    12·1 answer
  • Can someone help me asap? Ik it’s easy but not good at maths lol
    12·2 answers
  • Sam opened a saving account. he put $45 in the account to open it and he deposits $12 in the account each month. which equation
    6·1 answer
  • Plz help due tomorrow if correct ill give brailiest
    14·1 answer
  • Which expression is equivalent to (3.1x−2.4y+1.9)+(2.2x−1.4y−3.4)?
    7·1 answer
  • Given the sequence <img src="https://tex.z-dn.net/?f=c_n" id="TexFormula1" title="c_n" alt="c_n" align="absmiddle" class="latex-
    10·2 answers
  • Which addition problem is equivalent to -1.4 - (-0.5)
    15·1 answer
  • 4p + 7 &gt; 19 pls help
    6·2 answers
  • **Find the perimeter of the region.**
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!