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3 years ago

Can someone help me simplify?

Mathematics

1 answer:

valina [46]3 years ago

3 1

2x^4+8x^3+8x^2+1/x+2 is the answer

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A scuba diver is swimming in the ocean 10 feet below sea level. Then, she dives down 12

Elis [28]

Answer:

22 ft

Step-by-step explanation:

Simply add 12 to 10 and you'll get the relative position.

5 0

3 years ago

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Factor 16x^2 + 49. Check your work.

Shtirlitz [24]

Answer:

$16x^2+49=(x-\frac{7i}{4})(x+\frac{7i}{4})$

Step-by-step explanation:

Given : Expression $16x^2+49$

To find : Factor the expression ?

Solution :

The given expression is a quadratic function $y=ax^2+bx+c$ the solution is $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

On comparing with general form,

a=16, b=0, c=49

Substitute in the formula,

$x=\frac{-0\pm\sqrt{0^2-4(16)(49)}}{2(16)}$

$x=\frac{\pm\sqrt{-3136}}{32}$

$x=\frac{\pm56i}{32}$

$x=\frac{56i}{32},\frac{-56i}{32}$

$x=\frac{7i}{4},\frac{-7i}{4}$

Factors are $(x-\frac{7i}{4}),(x+\frac{7i}{4})$

Therefore, $16x^2+49=(x-\frac{7i}{4})(x+\frac{7i}{4})$

4 0

4 years ago

If x / 5 = y, what is 2x?

tino4ka555 [31]

<u>x / 5 = y</u>

Multiply each side by 5 : x = 5y

Multiply each side by 2 : <em>2x = 10y</em>

6 0

3 years ago

NEED HELP FAST WILL GIVE BRAINLIEST

Olin [163]

The answer is A, as I calculated the difference using Pythagora's Theorem. Which I then did 7.6-6.3= 1.29122, which rounds to 1.0 cm^2

7 0

3 years ago

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Calculate the perimeter of this shape.

Sloan [31]

Step-by-step explanation:

Hello there!

Just double the given sides!

(18*2)+(12*2)=60 cm.

There you are!

4 0

3 years ago