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tiny-mole [99]
3 years ago
5

Any help on this I’ll mark brainliest please

Mathematics
2 answers:
ElenaW [278]3 years ago
7 0
Answer: x = 11.3

Steps:
Leg b : 12 - 8 = 4

a^2 + b^2 = c^2
a^2 + 4^2 = 12^2
a^2 + 16 = 144
a^2 = 144 - 16
a^2 = 128
a = √(128)
a = 11.313708499
a = 11.3

I would appreciate brainliest if this was correct had clear steps and was helpful! :)

storchak [24]3 years ago
5 0
The answer is 96! Because 12 times 8 gives u 96.
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Solve this system of equations by elimination:<br><br> 8x+9y=48<br> 12x+5y=21
Olin [163]

Answer:

Let's solve your system of equations by elimination.

8x+9y=48;12x+5y=21

Steps:

Multiply the first equation by 5,and multiply the second equation by -9.

5(8x+9y=48)

−9(12x+5y=21)

Becomes:

40x+45y=240

−108x−45y=−189

Add these equations to eliminate y:

−68x=51

Then solve−68x=51for x:

−68x /−68 = 51 /−68  (Divide both sides by -68)

x=  −3 /4

Now that we've found x let's plug it back in to solve for y.

Write down an original equation:

8x+9y=48

Substitute

−3 /4

8x+9y=48:

8( −3 /4 )+9y=48

9y−6=48 (Simplify both sides of the equation)

9y−6+6=48+6 (Add 6 to both sides)

9y=54

9y /9  =  54 /9  (Divide both sides by 9)   y=6

<em><u>Answer:  x=  −3 /4  and y=6</u></em>

Hope This Helps!  Have A Nice Day!!

7 0
3 years ago
Help with math please example 1
hram777 [196]

Answer:

I'm not very sure about this one what icing in probably not going to be right but what I think is that they're not the same because look at the size difference imagine putting an adult's next to a baby that's kind of what it's like the bigger quadrilateral is also the adults while the little one is the baby what do you think about that I probably think that they're not saying

Step-by-step explanation:

sorry I gave it to you in my answer

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42 ft

Source(s):

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