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3 years ago

Find the surface area of the regular pyramid

Mathematics

1 answer:

kicyunya [14]3 years ago

5 0

Pyramid Surface Area = (½ * Perimeter of Base * Slant Height) + Base Area

Pyramid Surface Area = (.5 * 56 * 11) + 14 * 14Pyramid Surface Area = 308 + 196Pyramid Surface Area =504 square millimeters

Source:http://www.1728.org/volpyrmd.htm

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A carpenter designs a tabletop in the shape of an ellipse 7 feet long and 4 feet wide. The carpenter sketches a drawing of the t

worty [1.4K]

Answer:

Step-by-step explanation:

x^2/12.25 + y^2/4 = 1

6 0

3 years ago

Solve the system: x' = (2 4 -1 6)x

sertanlavr [38]

Answer:

$x=e^{8t}+c$

Step-by-step explanation:

we have given x'=(24-16)x=8x

x' denotes the differenation

$\frac{dx}{dt}=8x$ differentiation is performed with respect to t

by variable separable method we can write

$\frac{dx}{x}=8dt$

on integrating both side

$lnx=8t+c$

$x=e^{8t}+c$ (property of log )

so the solution for x will be $x=e^{8t}+c$

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4 years ago

An expression is shown.

Serggg [28]

Answer:

MIcheal and Dwight went to a condy store. Michea; bought 5 pieces of fudge and 3 pieces of bubblegum for a total of $5.70. Dwight bought 2 pices of fudge and ten pieces of bubblegum fot a total of $3.60 What is the price of one piece of fudge and one piece of bubblegum? Use Systems of eqautions to solve, either substitution or elimination. EXPLAIN WHY YOU CHOSE TO USE THE METHOD YOU USED AND WHY

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Solve, using linear combination.

Zinaida [17]

3x + y = 2x + y
3x - 2x = y - y
x = 0
so the answer is (x,y) (0,4)

4 0

4 years ago

Written in simplest form, the expression (x^2)(y^2)-9 over 3-xy is equivalent to

Ilya [14]

((x^2)(y^2) - 9) *(3 - xy).

Note difference of two squares: (a^2 - b^2) = (a-b)(a+b)
(x^2)(y^2) - 9 = (xy)^2 - 3 ^2 = (xy - 3)(xy + 3). (Take note)

(3- xy) = -(xy - 3). (Take note of this also)

Your question said: ((x^2)(y^2) - 9) times (3 - xy),
Don't you think it should be divide? Would solve it as divide.

((x^2)(y^2) - 9) /(3 - xy) = (xy - 3)(xy + 3) / -(xy - 3)

= -(xy + 3).

Answer is (3). Solved it as divide. Using times gives none of the solution among the options.
Cheers.

3 0

3 years ago