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sattari [20]
2 years ago
7

Simplify each radical expression. sqrt 7 ( sqrt 14 + sqrt 3 )

Mathematics
1 answer:
defon2 years ago
5 0

sqrt 7 ( sqrt 14 + sqrt 3 )

distribute

sqrt(7) sqrt(14) +sqrt(7) *sqrt(3)

sqrt(98) + sqrt(21)

sqrt(49*2) + sqrt(21)

sqrt(49) * sqrt(2) + sqrt(21)

7sqrt(2) + sqrt(21)

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Divide 3 by 4, then subtract z from the result
8_murik_8 [283]

Answer:

3/4 = z

Step-by-step explanation:

<u>Step 1:  Convert words into an expression</u>

Divide 3 by 4, then subtract z from the result

3/4 - z

<u>Step 2:  Solve for z</u>

3/4 - z + z = 0 + z

3/4 = z

Answer:  3/4 = z

7 0
3 years ago
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Solve for X when the surface area is 298ft^2
jok3333 [9.3K]

Step-by-step explanation:

Total surface area of cuboid= 2(lb+bh+hl)

= 298ft²=2(28+4x+7x)

= 149=28+11x

= 121=11x

= 11=x

6 0
2 years ago
Helppppp me find a equation for this lol
LUCKY_DIMON [66]

Answer: One POSSIBLE answer is (0,9)

Step-by-step explanation: This may look hard but it's actually super easy. All you have to do is substitute a value for x and see what you get as the y value. The first thing I would do is rearrange the equation so that the equation is in the format y = something. So the first thing you should do is subtract 6x from both sides of the equation and you should get -y=-6x+9. Right now, the y is being multiplied by -1, and to undo multiplication, you have to divide. So divide both sides of the equation by -1 (remember, what you do on one side of the equation, YOU HAVE TO DO THE SAME THING ON THE OTHER SIDE). So your new equation would be y=6x-9. Then, all you have to do is substitute a value for x and see what you get for y (x is basically the input and whatever you get for y is the output). S for example, let's say that x=0. So substitute a 0 in the equation wherever you see an x. So in this case, you would get y=(6x0)+9. Then you just simplify. So 6x0 is 0 and 0+9=9 So y=9

TO RECAP: Rearrange the equation so that the equation is in the format y = something. Then, input any number for x, and whatever you get for y is what you put in the brackets as your y value for your final answer.

Hope this helps!

6 0
3 years ago
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What two consecutive numbers have a sum of 53? Thanks! :P
Musya8 [376]
Let's the name the first number x and the consecutive number x + 1. The sum of both of these numbers equals to 53.

We now have our equation:

x + x + 1 = 53

Now solve for x.

x + x + 1 = 53
2x + 1 = 53 <-- Combine like terms
2x = 52 <-- Subtract 1 from each side
x = 26

So, the first number is 26 and the second number is 27.
4 0
3 years ago
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Which is a solution to the equation?
stiks02 [169]
If you would like to know the solution to the equation (x - 2) * (x + 5) = 18, you can calculate this using the following steps:

(x - 2) * (x + 5<span>) = 18
</span>x^2 + 5x - 2x - 10 = 18
x^2 + 3x - 28 = 0
(x + 7) * (x - 4) = 0
1. x = - 7
2. x = 4

The correct result would be x = - 7.
3 0
3 years ago
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