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IrinaVladis [17]
3 years ago
5

Yo can someone pass a brainly plus account ​

Mathematics
1 answer:
Nana76 [90]3 years ago
4 0

Answer:

whats yo paypal?

Step-by-step explanation:

You might be interested in
Is the solution of this equation extraneous?
UkoKoshka [18]

Answer:

x = - 3 is extraneous

Step-by-step explanation:

Given

\sqrt{x+7} - 1 = x  ( add 1 to both sides )

\sqrt{x+7} = x + 1 ( square both sides )

x + 7 = (x + 1)² ← distribute right side

x + 7 = x² + 2x + 1 ( subtract x + 7 from both sides )

0 = x² + x - 6 ← in standard form

0 = (x + 3)(x - 2) ← in factored form

Equate each factor to zero and solve for x

x + 3 = 0 ⇒ x = - 3

x - 2 = 0 ⇒ x = 2

As a check

Substitute these values into the equation and if both sides are equal then they are the solutions.

x = - 3 : \sqrt{-3+7} - 1 = \sqrt{4} - 1 = 2 - 1 = 1 ≠ - 3

x = 2 : \sqrt{2+7} - 1  = \sqrt{9} - 1 = 3 - 1 = 2

x = 2 is a solution and x = - 3 is extraneous

6 0
3 years ago
Read 2 more answers
Use the change of base formula to evaluate log3(73).
Marrrta [24]
The change of base formula allows you to write a logarithm in terms of logarithms with another base. It follows this pattern,

log_{a}x =  \frac{ log_{b}x }{log_{b}a }

where a≠1 and b≠1

Assigning the base to be 7,

log_{3}73 = \frac{ log_{7}73 }{log_{7}3 }=3.9


I hope I was able to answer your question. Have a good day.
3 0
3 years ago
Jerry paid $99.30 for 6 shirts.how much did jerry pay for each shirt?
Over [174]

The answer is 16.55

Divide $99.30 by 6 and you get your answer!

I hope this helps :)

5 0
3 years ago
Students in health class are tracking how much water they consume each day. Evelyn has two reusable water bottles: a small one a
Ludmilka [50]

Answer:

424 grams for the small one and 510 grams for the big one.

Step-by-step explanation:

Nice profile picture.

8 0
2 years ago
?^2 when ? =5 im so confused on how to get my answer
LuckyWell [14K]

Answer -- ---------

2 + 3 = 5

6 0
2 years ago
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