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Zarrin [17]
3 years ago
9

Can someone help with this question? thanks

Mathematics
1 answer:
Stels [109]3 years ago
5 0
I can’t see make clearer plz
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A square base of a pyramid has the dimensions 5 yards
AfilCa [17]

Answer:

145 yd²

Step-by-step explanation:

There will be dour triangular faces. For a triangle, area is given as

A=½bh where b is base and h is height. The base will be 5 yards and h is 12 yards hence for one triangular face, area will be ½*5*12=30 yd²

Since they are four similar triangles, area of triangular faces will be 30*4=120 yd²

The surface area of a square base is given by

A=a*a=a² where a is the dimension of one side. Given that the meaurement is 5 yards then A=5²=25 yd²

Total area will be the sum of triangular and square faces hence 120+25=145 yd²

7 0
3 years ago
Read 2 more answers
Six times a number is greater than 20 more than that number. What are the possible values of that number?
Alex73 [517]

Answer:

6x > x + 20,

x > 4

or

X belongs to a set of real numbers [0, +infinity)

Step-by-step explanation:

6x > x + 20

5x > 20

x > 4

3 0
3 years ago
Is 4 to 7 the same as 7 to 4 and why or why not
podryga [215]

Answer:

No

Step-by-step explanation:

4 to the 7th power is 4x4x4x4x4x4x4 (4 multiplied by itself 7 times) And 7 to the 4th power is 7x7x7x7 (7 multiplied by itself 4 times)

8 0
3 years ago
HELP PLEASE thank you
prohojiy [21]

Answer:

3 books

Step-by-step explanation:

She can carry 3 books in her backpack, this is because 1lb+3lb= 4

and if one book = 2lb each. Then 10-4 =6

so she has 6lb space remaning.

so 6lb divided by 2 = 3

8 0
2 years ago
Please help! I am completely lost on these things
Flauer [41]
Its pythagoras I think ^^; so 9^2 + 4.5^2 = 101.25 then square root it to get 10.0623059   just in future do a^2 + b^2 = c^2 (adjacent squared plus opposite squared gives you the longest side which is the hypotenuse squared) I hope that helps! ^^; 
5 0
3 years ago
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