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igor_vitrenko [27]
2 years ago
7

Find the surface area of the square pyramid. A) 104 cm2 B) 160 cm2 C) 224 cm2 D) 448 cm2

Mathematics
1 answer:
jeyben [28]2 years ago
8 0
Answer:
B
Step-by-step explanation:

i
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The table shows the values of y for each value of x. x y 2 1 3 1 4 -3 3 -3 Part A: Does the table represent a relation that is a
LUCKY_DIMON [66]
Part A:

The given values in form of ordered pairs are:
(2,1), (3,1), (4,-3), (3,-3)

A relation can be a function if one value of x is paired with exactly one value of y. In this case, x value of 3 is paired with two y values 1 and -3. So this relation is not a function.

Part B:

f(h) = 15h + 5
f(8) can be found by substituting h=8 in above equation. 
So,
f(8) = 15(8) + 5 = 125
h represents the number of hours and f(h) represents the earnings of Kylie. So f(8) shows that Kylie earned $125 from 8 hours of work in the cafe

Part C:

For r hours of work, we can write:
f(r) = 15r + 5
So, the ordered pair can represent this relation as:
(r, f(r))
or
(r, 15r+5)
7 0
3 years ago
What is the value of 9C6? A. 54 B. 84 C. 6480 D. 60,480
Verdich [7]

The solution would be like this for this specific problem:

<span><span>9 ! </span><span>
<span>------- </span>
<span>6 ! 3! </span>


<span>9 x 8 x 7 </span>
<span>-------------- </span>
<span>6 </span></span></span>   504 / 6 = 84   <span>So the value of 9C6 is <span>84.</span></span>  

<span>If you have any other questions, please don’t hesitate to ask again.</span>

7 0
3 years ago
What is an equivalent expression to 3^5?
Roman55 [17]

Answer:

3^5= 3 times 3 times 3 times 3 times 3 or 243

Step-by-step explanation:

5 0
3 years ago
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There are 80 pupils in a school. If 32 are boys, what percentage are boys?
maks197457 [2]

Answer:

40%

Step-by-step explanation:

32/80=.4

8 0
3 years ago
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Temperature at 9:00PM was 15° By 5 AM the temperature had dropped 20° what was the temperature at 5 PM
Arisa [49]
From 9 P.M. to 5 A.M. the temperature dropped 20°, making the rate over 8 hours, -2.5° Per Hour. By 5 A.M., the temperature is -5° since we had to do 15 - 20. From 5 AM to 5 P.M. is 12 hours so -2.5 x 12 = -30 making 30 how much the temperature dropped between 5 A.M. to 5 P.M. Finally, our last equation is -5 - 30 making -35 our answer.
4 0
3 years ago
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