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umka21 [38]
3 years ago
7

I took notes and went back through the lesson but I can't get it. Help, please!!!

Mathematics
1 answer:
aliina [53]3 years ago
4 0

Answer:

\/

Step-by-step explanation:

▪Picture 1. x = 28

\frac{x}{42}  =  \frac{10 + x}{57} \\ 42(10 + x) = 57x \\ 420 + 42x = 57x \\  \frac{  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: - 42x =  - 42x}{ \frac{420}{15}  =  \frac{15x}{15} }   \\  \\ 28 = x

-

▪Picture 2. I don't know what in trying to solve.

▪Picture 3.

•ABC = 50

•DEF = 95

•GHI = 65

•JKL = 55

▪Picture 4. I dont know how to do that

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Gerry plans to place a 29 foot ladder against the side of his house to clean his gutters. The bottom of the ladder will be 3 fee
tensa zangetsu [6.8K]

Answer:

8\sqrt{13}

Step-by-step explanation:

Using the pythagorean theorem (Assuming the house's walls are perpindicular to the ground):

a^2+b^2=c^2

we can find that 3=a and 29=c

3^2+b^2=29^2

9+b^2=841

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b=\sqrt{64*13}

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3 years ago
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stich3 [128]
Hi! 

A perfect square is the product of when a whole number is multiplied by itself

Ex:

6 × 6 = 36, 36 is the perfect square. 

The number that is being multiplied is the square root. 

So to find the correct answer for this question, let's use the process of elimination. 

100 = 10 × 10 so we can cross out 100

64 = 8 × 8 so we can cross out 64

25 = 5 × 5 so we can cross out 25

Now all we have left is 24, which is not a perfect square. 

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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