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3 years ago

11

What is the total surface area of the square pyranid?

2 answers:

monitta3 years ago

8 0

Answer:

The general formula for the total surface area of a regular pyramid is T. S. A. =12pl+B where p represents the perimeter of the base, l the slant height and B the area of the base.

ad-work [718]3 years ago

8 0

Answer:

the total surface area of a regular pyramid is T. S. A. =12pl+B where p represents the perimeter of the base, l the slant height and B the area of the base.

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Help me answer these 2 questions and explain them please :)

Gnom [1K]

Answer:

See below in bold.

Step-by-step explanation:

10.

m < N = 180 - 53 - 44

= 83 degrees.

Using the Law of Sines:

LM / sin 83 = 14 / sin 44

LM = 14 sin 83 / sin 44

LM = 20.

11.

m < ABC = 1/2 * 192 = 96 degrees.

5 0

3 years ago

the value of two numbers if their sum is 12 and their difference is 4. write a system of equation and find the two numbers

nikdorinn [45]

x+y=12

x-y=4

Then you solve:

x+y=12

-y -y

x=12-y

x-y=4

+y +y

x=4+y

4+y=12-y

+y +y

4+2y=12

-4 -4

2y=8

divide both sides by 2 to isolate y

y=4

Plug it into one of the equations

x+4=12

-4 -4

x=8

6 0

3 years ago

A store that sells skis buys them from a mannufacter at a whole sale price of $57. The stores markup rate is 50%. What price doe

vredina [299]

Answer:

$85.50

Step-by-step explanation:

The Wholesale price is $57. Markup is 50% of the wholesale price.

50% of $57 is $28.50. Add $28.50 to the wholesale price of $57 and you get $85.50, which is the cost that the store charges it’s customers.

7 0

3 years ago

Solve the equation, if possible. (If all real numbers are solutions, enter REALS. If there is no solution, enter NO SOLUTION.)

Masteriza [31]

Answer:

The equation $x\left(x\:+\:6\right)\:=\:\left(x\:+\:3\right)^2$ has NO SOLUTION, and is called contradiction.

Step-by-step explanation:

Given the equation

$x\left(x\:+\:6\right)\:=\:\left(x\:+\:3\right)^2$

$\mathrm{Expand\:}x\left(x+6\right):\quad x^2+6x$

$\mathrm{Expand\:}\left(x+3\right)^2:\quad x^2+6x+9$

so

$x^2+6x=x^2+6x+9$

$\mathrm{Subtract\:}x^2+6x\mathrm{\:from\:both\:sides}$

$x^2+6x-\left(x^2+6x\right)=x^2+6x+9-\left(x^2+6x\right)$

$\mathrm{Simplify}$

$0=9$

$\mathrm{The\:sides\:are\:not\:equal}$

Thus, there is NO SOLUTION.

We know that an equation that has no solution, such as $x = x + 2$ , is called a contradiction.

Therefore, the equation $x\left(x\:+\:6\right)\:=\:\left(x\:+\:3\right)^2$ has NO SOLUTION, and is called contradiction.

6 0

3 years ago

Simplify each expression.<br> 1. 92

77julia77 [94]

Answer: 81

Concept:

When a number is being squared, to being put to any power, it means the number multiplies itself by the amount of times indicated by the exponent.

For example, if 3 is to the 3rd power, then it would appear to be 3 × 3 × 3.

Solve:

<u>Given</u>

9²

<u>Simplify exponents</u>

=9 × 9

<u>Simplify by multiplication</u>

= $\boxed{81}$

Hope this helps!! :)

Please let me know if you have any questions

3 0

3 years ago