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3 years ago

Simplify each expression. 1) 1-9(3 + 3x)

Mathematics

1 answer:

NISA [10]3 years ago

5 0

Answer:

(-24-24x)

Step-by-step explanation:

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Solve for x.<br> Sqrt8 (Sqrt2 - x) = 11

Alexus [3.1K]

Answer: $\frac{-7\sqrt{2} }{4}$

Step-by-step explanation:

So first, let's get rid of the parentheses. We can multiply it out to get $\sqrt{16}-x\sqrt{8} =11$ . We know that the square root of 16 is ±4, so now our equation is ±4 - $x\sqrt{8}$ =11. I'm guessing since the problem only has one solution it's most likely only positive 4, so let's revise our equation to 4 - $x\sqrt{8}$ =11. We can use inverse operations to make the a little easier to solve: -7= $x\sqrt{8}$ . We divide both sides by $\sqrt{8}$ to get $\frac{-7}{\sqrt{8} } =x$ , which we can rationalize (remove the square root from the denominator so that it's a proper answer) by multiplying by $\frac{\sqrt{8} }{\sqrt{8} }$ (which is equal to one so we can use it) which is equal to $\frac{-7\sqrt{8} }{8}$ . Let's finish this by simplifying it. $\sqrt{8} =2\sqrt{2}$ (2x $2^{2}$ ). We can simplify it further by simplifying the 2, making it $\frac{-7\sqrt{2} }{4}$ .

Hope this wasn't too confusing! I'll answer any questions.

8 0

3 years ago

Read 2 more answers

Round off 2409725 to nearest 10

Julli [10]

Answer:

Hey!

Step-by-step explanation:

Your answer is 2409725.0

Best of luck ♥

5 0

3 years ago

Read 2 more answers

WILL MARK BRAINLIEST PLEASE HELP

Serga [27]

It’s the second one, 65.4

V=1
6πd3=1
6·π·53≈ 65.44985in³

7 0

3 years ago

A father and his daughter are interested in the same baseball game. The father sits next to his radio at home and listens to the

pychu [463]

Answer:

I think it is the daughter

Step-by-step explanation:

only because she is only 115 m away from home plate itself and the father is 132m away which is going to take some for the sound waves to travel and for anyone to hear . Also if you don't believe me, more of an explanation is ...

Kilometers are 1,000 times larger than meters. The meter is the base unit for measuring length or distance in the metric system.

132 km x 1,000 = 132,000m and 115 is already in meters now i think that is simple enough of an explanation. Your welcome. I know I'm right

8 0

3 years ago

Write the equation of a line that has a slope of 3 and goes through points (2,1)

Inga [223]

Answer:

The equation of straight line is 3 x-y-5=0

Step-by-step explanation:

The equation of straight line having slope m = 3 and passing through the point (2,1) is

the standard form of straight line is $y-y_{1} = m (x-x_{1} )$