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Sliva [168]
3 years ago
5

Someone who is a true hero plz answer this for me I need help

Mathematics
1 answer:
nevsk [136]3 years ago
4 0

Answer:

4√2  or  5.66 to the nearest hundredth.

Step-by-step explanation:

Applying the Pythagoras Theorem:_

c^2 = a^2 + b^2

c^2 = 4^2 + 4^2

c^2 = 32

c = √32

c = 4√2

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3 years ago
Cx =d+r solve for x .! pls explain
elena-14-01-66 [18.8K]

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Step-by-step explanation:

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5 0
4 years ago
PLEASE GIVE ME ANSWERS I WILL MARK AS BRAINLIEST!
Dafna11 [192]

Step-by-step explanation:

Please refer to the attachment

7 0
3 years ago
What is :<br><br>(49^x)(7^x^2)=2401^2
ludmilkaskok [199]
(49^x)(7 ^{x^2})=2401^2 \\ \\( (7^2)^x)(7 ^{x^2})= (7^4) ^2 \\ \\ 7 ^{2x}\cdot 7^{x^2}=7^{8} \\ \\ 7 ^{2x+x^2} =7^{8} \\ \\2x+x^2 =8

 x^2-2x-8 = 0\\ \\ a=1, \ b=-2, \ c=-8 \\ \\\Delta =b^2-4ac = (-2)^2 -4\cdot1\cdot (-8) = 4 +32 =36 \\ \\x_{1}=\frac{-b-\sqrt{\Delta} }{2a}=\frac{2-\sqrt{36}}{2 }=\frac{ 2-6}{2}=\frac{-4}{2}=-2 \\ \\x_{2}=\frac{-b+\sqrt{\Delta} }{2a}=\frac{2+\sqrt{36}}{2 }=\frac{ 2+6}{2}=\frac{8}{2}= 4 \\ \\Answer: \ x=-2 \ \ or \ \ x=4

7 0
3 years ago
Read 2 more answers
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