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3 years ago

What is the surface area of the regular pyramid if the area of the square base is 16 square cm and the slant height is 8 cm?

Mathematics

2 answers:

xz_007 [3.2K]3 years ago

5 0

I really dont know and im sorry

schepotkina [342]3 years ago

3 0

Answer:

11.3

Step-by-step explanation:

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QUETSION 6 PLS HELP MEE

Alborosie

Answer:

x= -15

Step-by-step explanation:

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3 years ago

Find the missing sides.

love history [14]

Answer:

Part 3)

$x=6\ units$

$y=3\ units$

Part 4) $x=18\sqrt{2}\ units$

Step-by-step explanation:

Part 3)

step 1

Find the value of x

In the right triangle of the figure we know that

The cosine of angle of 30 degrees is equal to the adjacent side to angle of 30 degrees divide by the hypotenuse

$cos(30\°)=\frac{3\sqrt{3}}{x}$

and remember that

$cos(30\°)=\frac{\sqrt{3}}{2}$

substitute

$\frac{\sqrt{3}}{2}=\frac{3\sqrt{3}}{x}$

Simplify

$x=(2*3)=6\ units$

step 2

Find the value of y

In the right triangle of the figure we know that

The sine of angle of 30 degrees is equal to the opposite side to angle of 30 degrees divide by the hypotenuse

$sin(30\°)=\frac{y}{x}$

and remember that

$sin(30\°)=\frac{1}{2}$

substitute

$\frac{1}{2}=\frac{y}{6}$

$y=6/2=3\ units$

Part 4) Find the value of x

Applying the Pythagoras Theorem

$x^{2} =18^{2} +18^{2} \\ \\x^{2} = 324+324\\ \\x^{2}=648\\ \\x=\sqrt{648}\ units$

Simplify

$x=18\sqrt{2}\ units$

6 0

3 years ago

247 students went on a field trip. six buses were filled and 7 students traveled in cars. How many students were in each bus ?

Nuetrik [128]

from all the 247 students, 7 went on by cars, meaning they didn't fit in the buses, so they students that went in the buses are 247 - 7 = 240.

now, we know there were 6 buses, so dividing 240 evenly by 6, 240/6 = 40.

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3 years ago

(-4,9);m=-1/2 Write the equation in point slope form

marin [14]

Wait wha i don’t know

6 0

3 years ago

Read 2 more answers

Amy needs about 70 paper clips without adding circle 2 box that would be close

AVprozaik [17]

Subtract 70 minus 2 hope this helps even though it might be wrong

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3 years ago