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aleksley [76]
3 years ago
13

Which expression can be used to find the surface area of the following square pyramid?

Mathematics
1 answer:
kodGreya [7K]3 years ago
6 0

Answer:

Step-by-step explanation:

expression for surface area = a² + a √(a²/4+h²)

=4² + 2(4) √(4²/4+5²)

=16 + 8  √(16/29)

= 24 √0.55

= 20.65

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The diameter of a circle is 14 yards. What is the circle's circumference?
yarga [219]

Answer:

The circle's circumference is equal to 14π yards.

General Formulas and Concepts:

<u>Geometry</u>

Circumference of a Circle Formula: C = πd

  • <em>d</em> is the diameter of the circle

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify.</em>

<em>d</em> = 14 yds

<u>Step 2: Find Circumference</u>

  1. Substitute in variables [Circumference Formula]:                                        C = 14π yds

Topic: Geometry

3 0
2 years ago
John has × marbles and max has twice as many.max give gives john 5 of his marbles does max now have
rjkz [21]

Answer: 2x -5

Step-by-step explanation:

Hi, to answer this question we have to write equations with the information given:

  • <em>John has × marbles  </em>

John=x

  • <em>Max has twice (multiplied by 2) as many.max give gives john 5 of his marbles. </em>

We have to multiply by 2 the number of marbles that John has (x), and subtract 5.  

Max = 2x -5

Feel free to ask for more if needed or if you did not understand something.  

8 0
3 years ago
Melanie buys a carrying case for her new laptop computer. The retail price is $24.50 and the sales tax is 7%. What is the amount
Stella [2.4K]
The answer $1.72. you divide $24.50 by .07 and the answer comes out to $1.715 and then you round up and have 1.72
4 0
3 years ago
Can you explain how to solve this
Wewaii [24]
I believe it’s 180 or something to do with that
3 0
3 years ago
salesperson receives 16.7% commission. If her total sales for the month are $4900, what is her commission?
Natali [406]

Answer:

$818,3

Step-by-step explanation:

16.7% in decimal is 0.167

= 0.167 x $4900

= $818,3

6 0
3 years ago
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