Ask question

Ask question

All categories

3 years ago

14

What is the surface area of the square pyramid?

1 answer:

matrenka [14]3 years ago

3 0

Answer:

sa (surface area) = $a^{2} + 2a$ $\sqrt{x} \frac{a^2}{4} + h^2\\$

Step-by-step explanation:

I hope this helps! Have a fantastic day/night!

You might be interested in

2(x-3)=3/4(8x-12)<br> step by step please

Umnica [9.8K]

Answer:

$x = \frac{3}{4}$

Step-by-step explanation:

$2(x-3)=\frac{3}{4} (8x-12)$

$2x-6 = \frac{3}{4}8x- \frac{3}{4} 12$

$2x-6 = 6x - 9$

$-6+9 = 6x - 2x$

$3 = 4x$

$x = \frac{3}{4}$

7 0

3 years ago

What are the coordinates of R' for the dilation D(0.5. p)(PQRS)?

11111nata11111 [884]

Answer:

$R' = (-1,-0.5)$

Step-by-step explanation:

See attachment for complete question.

From the attachment:

$P = (-3,-3)$

$R = (1,2)$

Dilation:

$D_{(0.5,P)}$

Required

Determine R'

First, subtract the coordinates of P from R. This means that R is measured from P.

$R = (1-(-3),2-(-3))$

$R = (1+3,2+3)$

$R = (4,5)$

Next, apply dilation factor 0.5

$R' = R * 0.5$

$R' = (4,5) * 0.5$

$R' = (4* 0.5,5* 0.5)$

$R' = (2,2.5)$

Lastly, measure R' from the origin by adding the coordinates of P to R'

$R' = (2+(-3),2.5+(-3))$

$R' = (2-3,2.5-3)$

$R' = (-1,-0.5)$

6 0

3 years ago

Find the area of a regular decagon with perimeter 100 units. Show all work.

Slav-nsk [51]

A regular polygon has ten (10) equal sides ( since it is regular).
We are given with the perimeter value which is 100 units and the perimeter formula is P = 10a
Solving for a (the side measurement), we have:
100 = 10a
a= 100/10
a =10

We can now proceed in solving the area and the formula is shown below:
Area = 5/2 a√ (5+2√5)
Area = 5/2 * 10√(5+2√5)
Area = 76.94 square units

The answer is 96.94 square units.

4 0

3 years ago

Valerie Watkins is preparing walnut and raisin mix. Walnuts cost $2 per pound and raisins cost $3 per pound. She wants to spend

iragen [17]

Answer:

7.5 pounds

Step-by-step explanation:

multiply by 3.

3x+3y=30

2x+3y=22.5.

x=7.5.

7.5+2.5=10.

7.5 pounds of walnuts, 2.5 pounds of raisins.

Hope this helps :D

4 0

3 years ago

Zoe visits a departmental store to pick a can of salted mixed nuts. A 15.25 oz can of

timama [110]

Answer:15.25oz can

Step-by-step explanation:

4 0

3 years ago