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sergey [27]
2 years ago
9

X^2 - 25 = 25 solve for x

Mathematics
1 answer:
Nezavi [6.7K]2 years ago
3 0

Answer:

\tt x=\pm5\sqrt{2}

Step-by-step explanation:

\tt x^2 - 25 = 25

\tt x^2-25+25=25+25 (Add 25 to both sides)

\tt x^2=50 ( Take square of both sides)

\tt x=x=\sqrt{50},\:x=-\sqrt{50}

\tt x=\pm5\sqrt{2}

~

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Given the domain (-2,2,4) what is the range for the relation 3x-y=3
Bumek [7]

Answer:

Given the domain, the range for 3x-y = 3 is {-9, 6, 9}

Step-by-step explanation:

First you have to put the relation in terms of y ⇒ 3x - y = 3⇒ 3x -3 = y

⇒ y = 3x - 3.

Then you replace the values indicated by the domain to find their "y" values (the ones that constitute the range).

f(-2) = -9

f(2) = 6

f(4) = 9.

Finally, the range for the given domain is {-9, 6, 9}

3 0
3 years ago
Solve for Inequality
uysha [10]

Answer:

x > -1

Step-by-step explanation:

Divide the whole inequality by 9.

(\frac{x}{3}+1)>\frac{6}{9}

Subtract 1.

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\frac{x}{3} > -\frac{1}{3}

Multiply by 3.

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3 years ago
Terri measured the length of the special curtain rod and found it was 2 meters long. How many centimeters long is the curtain ro
DanielleElmas [232]
1 meter = 100 centimeters
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8 0
2 years ago
A and b are positive integers. Find <img src="https://tex.z-dn.net/?f=-2a%2B3b" id="TexFormula1" title="-2a+3b" alt="-2a+3b" ali
lord [1]

A could be 2 while B could be 3, so -2a+3b turns into -4+9, which equals 5.

From what I know you can't really solve a a single equation with two-variables so it's just a matter of trial and error.

Just try plugging in a small number like 2 for a just to try it and you get 8b^2=72.

Divide everything by 8 to isolate b and you get that b^2=9.

Square root everything and you'll find that b=3. This is just one possible combination, I'm sure there are many more but this is obviously the one that was intended to be found.

Now that we know that a=2 and b=3 just plug them into the equation.

-2(2)+3(3)=?

-4+9=?

5

Sorry about having to use this ^ symbol, the equation maker is not working.

7 0
3 years ago
How many 3/4s are in 2? Draw a tape diagram
kaheart [24]

Answer:

8/3, or 2 if you want a whole number

Step-by-step explanation:

Well, the simple answer is 2/(3/4). This is nothing but 2*4/3, which is just 8/3. (I used the theorem that states that dividing is the same as multiplying by the reciprocal)

4 0
2 years ago
Read 2 more answers
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