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Andrews [41]
2 years ago
14

3.4.7 Kid's Shapes Toy code hs

Mathematics
1 answer:
Vlad1618 [11]2 years ago
7 0
3.4 is the right answer i’m sure
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Algebra 2 help. Solving equations containing two radicals
Marysya12 [62]

These are 3 questions and 3 answers.

Question 1.

Answer: bot equations have the same potential solutions, but equation A may have extraneous solutions

Explanation:

1) Equation A

\sqrt{x^2+3x-6}=\sqrt{x+2}\\ \\  x^2+3x-6=x+2\\ \\  x^2+2x-8=0\\ \\  (x+4)(x-2)=0\\ \\  x=-4 ; x =2

Replace x = -4 in the right side of the equation:

\sqrt{x+2} =\sqrt{-4+2} =\sqrt{-2}

Which is not defined, so this is a extraneous solution.

2) Equation B.

Since it is a cube root, it is defined for any (negative, zero, and positive) values of x.

Question 2.

Answer: cubing both sides once.

Explanation:

\sqrt[3]{5x-2} -\sqrt[3]{4x} =0\\ \\  \sqrt[3]{5x-2} =\sqrt[3]{4x}\\  \\  (\sqrt[3]{5x-2} )^3=(\sqrt[3]{4x})^3\\  \\  5x-2=4x\\ \\  5x-4x=2\\ \\  x=2

3) Question 3.

Answer: c - 2 = 25 + c + 10√c

Explanation:

\sqrt{c-2} -\sqrt{c} =5\\ \\ \\  \sqrt{c-2} =\sqrt{c} +5\\ \\  (\sqrt{c-2})^{2}  =(\sqrt{c}+5)^2\\  \\  c-2=c+10\sqrt{c} +25\\ \\  c-2=25+c+10\sqrt{c}

4 0
3 years ago
This does not make sense even when I put 4321 it still did not work
ella [17]

Answer:

Maybe you should refresh your page if you can.

3 0
3 years ago
600 people at a music festival 420 had attended the previuos year how many people out of 100 had atteneded the previuos year
insens350 [35]

Answer:

70

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Find the volume of the rectangular prism. Express your answer as a simplified mixed number.
OverLord2011 [107]

Answer:

Volume = = 138⁶/32 cubic meters

Step-by-step explanation:

Given:

Length = 8⅜ m

Width = 2 m

Height = 8¼ m

Required:

Volume as a mixed number

Solution:

Volume of rectangular prism = L*W*H

Plug in the values

V = 8⅜ × 2 × 8¼

Change to improper fraction

V = 67/8 × 2 × 33/4

= (67 × 2 × 33)/(8 × 4)

= 4,422/32

= 138⁶/32 m³

7 0
3 years ago
If B is the midpoint of AC, and AC = 8x – 20,<br> find BC.<br> 3x - 1<br> A<br> B<br> C
sammy [17]

Answer:

x = 9

Step-by-step explanation:

Since B is the midpoint, that means segment AB has to be the same length as BC.

Therefore:

2(3x-1)=8x-20

6x-2=8x-20

18=2x

9=x

6 0
4 years ago
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