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Ulleksa [173]
2 years ago
13

Which expression is eqivalent to 4(9+3)

Mathematics
1 answer:
Black_prince [1.1K]2 years ago
7 0

You could do

36+12

4*12

4*9+12

(4*9)+(3*4)

and many more!

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The length of a rectangle is 4 more than the width. The entire perimeter is 38".
Novosadov [1.4K]
L = 4 + w
perimeter = 38

38 = w + 4 + w
2w = 34
w = 17

L = 4 + 17
L = 21

i am a mathematics teacher. if anything to ask please pm me
4 0
3 years ago
Write a fact with the same sum as 7+5
kozerog [31]
6+6
8+4
9+3
10+2
11+1
Hope this helps!
3 0
3 years ago
Read 2 more answers
Identify the value of x and the length of each secant segment.
uranmaximum [27]

Answer:

x=7; NL=12; NP+20

Step-by-step explanation:

8 0
3 years ago
Which expression is equivalent to 5(w+4) when w= 9?<br> 519)<br> 9(5)<br> 5(9)+4<br> O 5(9)+20
lana [24]

Answer:

D

Step-by-step explanation:

5(9 + 4) \\ 5(13) \\ 65 \\ prove \: it \: d \: answer \\ 5(9) + 20 \\ 45 + 20 \\  = 65

7 0
3 years ago
A kite flying in the air has a 12 line attached to it. Its line is pulled taut and casts a 9 shadow. Find the height of the kite
alexira [117]

Answer:

8 (7.94)

Step-by-step explanation:

You can think of it as a geometry problem.

What is formed here is a triangle, which sides ate: the line, the line's shadow, and the height from the ground to the kite (here I attach a drawing).

What you need to find is the height. We will call it H.

As the triangle formed is a right one, we can use Pitágoras' theorem. The height H squared plus the squared of the shadow is equal to the squared of the line (the hypotenuse). This is:

H^2 + 9^2 = 12^2

H^2 + 81= 144

H^2 = 63

Applying squared root in both sides

H = √63

H = 7,94

So, the height is approximately 8.

4 0
3 years ago
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