2 years ago

I think the answer is b, is this correct?

Mathematics

1 answer:

Art [367]2 years ago

3 0

Answer:

I think its D .

Step-by-step explanation:

hope this helps you

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1. x=1/(root3-root2). find rootx-(1/rootx) 2. if x=[root(a+2b)+root(a-2b)]/[root(a+2b)-root(a-2b]. show that bx^2-ax+b=0

timofeeve [1]

1. x = 1/ ( $\sqrt{3} - \sqrt{2)}$ = $\sqrt{3}+ \sqrt{2}$ ;
( $\sqrt{x} -1/ \sqrt{x} )^{2} = x + 1/x - 2 =$ =

6 0

3 years ago

Read 2 more answers

Suppose you had d dollars in your bank account. You spent $22 but have at least $42 left. How much money did you have initially?

german

1) What left

$\boxed {d-22 \geq 42}$

*Obs: remember that left at least 42 dollars. In other words, the left over is equal or more than 42 dollars.

2) At the beginning

$d-22 \geq 42 \\ \\ \boxed {d \geq 64}$

Letter C

4 0

2 years ago

Help! anyone SMART PLEASE

bagirrra123 [75]

Answer choice B is the correct answer the rest don't make sense.

5 0

3 years ago

For what values of x does 25× - 5×²-3?

dusya [7]

Answer:

X = 3, -1; B

Step-by-step explanation:

Use log properties, log 5 on both sides, log 5 of 25 is 2 that times the exponent, so 2*x = 2x, and on the other side, log 5 and base of 5 cancels. So 2x = x^2 -3, which can be solved using factoring:

x^2 -2x -3 = (x-3)(x+1) = 0, x=3,-1

4 0

2 years ago

I need help answering this question. Any ideas on what it could be?

Lesechka [4]

Is this for a test/exam?

4 0

2 years ago