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
MissTica
2 years ago
11

I dont get this please help

Mathematics
1 answer:
Viktor [21]2 years ago
4 0

Step-by-step explanation:

the side lengths of the base (the ground triangle) are equal. that means every ground side length is 8 in.

and that also makes the 3 triangles of the side areas of the pyramid equal.

so, for the surface area of the pyramid we need to calculate the area of one side area triangle, multiply it by 3 (as we have 3 side areas) and add the area of the ground triangle.

the area of a triangle is

baseline × height / 2

so, for a side area triangle we get

8 × 14 / 2 = 8×7 = 56 in²

all 3 side areas together are then

3×56 = 168 in²

the ground area triangle is then

8 × 6.9 / 2 = 4 × 6.9 = 27.6 in²

so, the total surface area of the pyramid is

168 + 27.6 = 195.6 in²

You might be interested in
The graph of a system of linear equations shows 2 lines with different slopes.
pochemuha

they are the same lines

x and y are the same

Step-by-step explanation:

i dont know for sure so bye god bless

4 0
3 years ago
W=zr-2zt^3 solve for z
ladessa [460]

Answer: z=0

Step-by-step explanation:

W=zr-2zt^3

Move all terms containing z to the left, all other terms to the right.

dd '-1rz' to each side of the equation.

-1rz+z=rz+-1rz+-2t^3z

Combine like terms: rz + -1rz = 0

-1rz+z=0+(-2t^3z)

-1rz+z=-2t^3z

Add 2t^3z to each side

-1rz+2t^3z+z=-2t^3z+2t^3z

Combine the like terms 2t^3z+2t^3z=0

-1rz+2t^3z+z=0

Factor out the Greatest Common Factor (GCF), 'z'.

z(-1r+2t^3+1)=0

Hope this helps, HAVE A BLESSED AND WONDERFUL DAY! As well as a great Superbowl Weekend! :-)

- Cutiepatutie ☺❀❤

8 0
3 years ago
Add 5y - 9 and 2 - 5y
levacccp [35]

Answer:

10y-11

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
How much should you put in an investment paying a simple interest rate of​ 5% if you needed​ $4000 in eighteen​ mont
Eddi Din [679]

now, there are 12 months in a year, so 18 months is really 18/12 of a year, thus

~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\dotfill & \$4000\\ P=\textit{original amount deposited}\\ r=rate\to 5\%\to \frac{5}{100}\dotfill &0.05\\ t=years\to \frac{18}{12}\dotfill &\frac{3}{2} \end{cases} \\\\\\ 4000=P[1+(0.05)(\frac{3}{2})]\implies 4000=P(1.075) \\\\\\ \cfrac{4000}{1.075}=P\implies 3720.93\approx P

6 0
2 years ago
The domain of an exponential function is
dalvyx [7]

Answer:

real numbers

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Please help me figure this out!
    15·2 answers
  • I will vote u brainliest if u answer so pls do
    5·2 answers
  • Help me please !!?????????? Question 4
    15·1 answer
  • Write 26% as a decimal.
    13·1 answer
  • The width of a confidence interval is defined to be the upper bound of the confidence interval minus the lower bound of the conf
    11·1 answer
  • The point (5, 7) is reflected over the x-axis. What are the coordinates of its image?
    7·2 answers
  • What is the probability of rolling a number less than or equal to 8 with the
    14·1 answer
  • Bab needs help with Algebra two homework. show work please! Also I'll give brainliest!
    14·1 answer
  • What is the slope of the graph shown below?
    13·1 answer
  • -25 + 28 math problem
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!