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Mathematics

1 answer:

marshall27 [118]2 years ago

8 0

Answer: Transitive property of equality

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What is :<br><br>(49^x)(7^x^2)=2401^2

ludmilkaskok [199]

$(49^x)(7 ^{x^2})=2401^2 \\ \\( (7^2)^x)(7 ^{x^2})= (7^4) ^2 \\ \\ 7 ^{2x}\cdot 7^{x^2}=7^{8} \\ \\ 7 ^{2x+x^2} =7^{8} \\ \\2x+x^2 =8$

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

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3 years ago

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Choose a different point that lies directly on the graph of the line...

Anna71 [15]

Answer: 0.1

Step-by-step explanation:

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2 years ago

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Does anymore know? Thennddndn

OverLord2011 [107]

Answer:

Step-by-step explanation:

not enough information to prove they are congruent. the postulates need 3 things that are congruent, unless it's a right triangle, you only need two. However, in this image, they are not shown to be right triangles.

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3 years ago

What is the equation of the line

balandron [24]

Answer:

y=2x+2

Step-by-step explanation:

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A recent survey showed that 23.1 million adults have cut the cord on cable TV services, a 20% increase from the previous year. I

bogdanovich [222]

Answer:27.7million adults.

Step-by-step explanation:

The recent survey showed that 23.1 million adults have cut the cord on cable TV services and this is a 20% increase from the previous year.

If this trend continues, the amount by which the number of adults that would cut the cord on cable TV services would increase is

20/100 × 23100000 = 4620000

The number of adults expected to cut the cord next year would be

23100000 + 4620000 = 27720000

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3 years ago