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ddd [48]
3 years ago
5

Which equation has the same solution as x^2-6x-13=0?

Mathematics
1 answer:
NeTakaya3 years ago
8 0
x^2-6x-13=0\\\\\underbrace{x^2-2x\cdot3+3^2}_{use:(a-b)^2=a^2-2ab+b^2}-3^2-13=0\\\\(x-3)^2-9-13=0\\\\(x-3)^2-22=0\\\\\boxed{(x-3)^2=22}
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What is 15.072 rounded to nearest hundred
Blizzard [7]

Answer:20

Step-by-step explanation:

6 0
3 years ago
the length of a rectangle is 5 inches more then the width. the area of the rectangle is equal to 2 inches more than 4 times the
Svet_ta [14]
P = 2(L + W)
L = W + 5
A = 4P + 2

P = 2(W + 5 + W)
P = 2(2W + 5)
P = 4W + 10

A = 4P + 2
A = 4(4W + 10) + 2
A = 16W + 42

A = L * W
A = W(W + 5)
A = W^2 + 5W

W^2 + 5W = 16W + 42
W^2 + 5W - 16W - 42 = 0
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L = W + 5
L = 14 + 5
L = 19 <==

P = 2(19 + 14)
P = 2(33)
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A = L * W
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answer : length = 19, width = 14....perimeter = 66....area = 266
5 0
3 years ago
3x-8&lt;23 and -4x+26&gt;6
Papessa [141]

Answer:

3x-8<23 and -4x+26>6

x<31/3            x<5

Step-by-step explanation:

3x-8<23

Add 8 to both sides

3x<31

Then divide 3 to both sides

x<31/3


and -4x+26>6

Minus 26 to both sides

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You divide -4 to both sides

Keep in mind that everytime you divide a negative the inequality will change so > will be <

x<5

3 0
2 years ago
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BartSMP [9]
Ok, so remember the exponentioal law that says
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answe ris x^6
5 0
3 years ago
Read 2 more answers
Find all the missing angles:
siniylev [52]

Step-by-step explanation:

this is the answer in the picture

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2 years ago
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