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
nadya68 [22]
2 years ago
6

Find the surface area of the regular pyramids. Round your answer to the nearest tenth.

Mathematics
1 answer:
katrin2010 [14]2 years ago
8 0

Answer:

S.A = 147.35 cm²

Step-by-step explanation:

Surface area of the triangular pyramid = base area + ½(perimeter of base*slant height)

Base area = ½*bh

b = 7 cm

h = 6.1 cm

Base area = ½*7*6.1 = 21.35 cm²

Perimeter of triangular base = 7 + 7 + 7 = 21 cm

slant height = 12 cm

Plug in the values into the equation

S.A = 21.35 + ½(21*12)

S.A = 21.35 + 126

S.A = 147.35 cm²

You might be interested in
A moving company charges $22.50 per hour plus a flat rate of $180 to help a person move from one house to another.
ehidna [41]
It should take six hours for him to stay below $315 after you add the flat rate of $180. Goodluck :)
7 0
2 years ago
Read 2 more answers
The gross weight of a package and its contents is 11 pounds 5 ounces. If the packaging weighs 1 pound 15 ounces, what's the net
dsp73
Answer A
For ease convert both into ounces.

Gross = (11x16) + 5 = 181 ounces
Packaging = (1x16) + 15 = 31 oz.

Now subtract Packaging from Gross

181 - 31 = 150 oz.

Divide by 16 to get pounds

150/16 = 9.375 - hence 9 lb.

and multiply 16 by .375 for ounces

0.375 x 16 = 6 oz.

Thus A : 9lb 6 oz
5 0
3 years ago
Read 2 more answers
Graph a direct variation function that goes through the point (-2, -6). what is the slope
Effectus [21]

Answer:

The slope is 3.

Step-by-step explanation:

A direct variation function will always go through the origin point (0, 0).

Therefore, we have the two points (0, 0) and (-2, -6).

We can use the slope formula to find the slope:

\displaystyle m=\frac{y_2-y_1}{x_2-x_1}

Substitute and evaluate:

\displaystyle m=\frac{0-(-6)}{0-(-2)}=\frac{6}{2}=3

Therefore, the slope of the function is 3.

To graph, simply plot (0, 0) and (-2, -6) and draw a line connecting them. This is shown below.

6 0
2 years ago
Read 2 more answers
The depth of a swimming pool is 8.5 meters. What half of the depth is in millimeters?
timofeeve [1]
4250 millimeters.
Half of 8.5m is 4.25m.
4.25 m to mm is 4250.
4 0
3 years ago
Read 2 more answers
X - 4y = 28<br> x+2y = -2<br> it’s substitution
Luda [366]

Step-by-step explanation:

hope this will help you!!!.. plz follow me!!

6 0
2 years ago
Other questions:
  • Graph the function shown in the picture. I need this submitted quick and I’m so confused. Please help!
    6·1 answer
  • What is a possible value for the missing term of the geometric sequence 1250 ___ 50
    14·1 answer
  • Can somebody please please help me !!!! I don’t know if the answer is A,B,C,D ! Help ASAP !!!
    14·2 answers
  • What is the answer to the problem 1-(-18)
    14·1 answer
  • What is the answer to 5x-7=13
    6·2 answers
  • Alguien me puede explicar los binomios en matematica, porfavor :)
    10·1 answer
  • 13. Victoria uses 1 cup of flavored syrup to
    11·2 answers
  • What is the value of a
    12·2 answers
  • Will give brainlist if its a full answer
    14·1 answer
  • Which of the following values is the solution of x/32=8?<br> a 24<br> b 40<br> c 256<br> d 4
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!