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Over [174]
3 years ago
9

Pls can someone help me with this, and please explain why?

Mathematics
2 answers:
kolezko [41]3 years ago
5 0
C is the correct answer. It can’t be D because negative can’t be under radical.

Hope this helps!
Luda [366]3 years ago
4 0

Answer:

C

Step-by-step explanation:

recall the property a^{1/b}= \sqrt[b]{a}

if we apply this to this case,

x^{1/4} = \sqrt[4]{x}

- x^{1/4} = - \sqrt[4]{x}

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Simplify the following expression and write in standard form: 3 x (6y - 4y + 5x) PLEASE HELP
mylen [45]

Answer: 15x^2+6xy

Step-by-step explanation: 3x(6y−4y+5x)

(3x)(6y+−4y+5x)

(3x)(6y)+(3x)(−4y)+(3x)(5x)

18xy−12xy+15x^2

15x^2+6xy

8 0
3 years ago
Which expression is equivalent to x^6-9
svlad2 [7]

Answer: (x^3)^2 - 3^2

Step-by-step explanation:

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3 years ago
Solve the equation. 2/3 - 4x 7/2= -9x+ 5/6 step by step
Lostsunrise [7]

Answer:  \bold{x=\dfrac{11}{21}}

<u>Step-by-step explanation:</u>

\dfrac{2}{3}-\dfrac{4x+7}{2}=-9x+\dfrac{5}{6}\\\\(6)\dfrac{2}{3}-(6)\dfrac{4x+7}{2}=-9x(6)+(6)\dfrac{5}{6}\qquad \text{(multiplied by LCD) }\\\\4 - 12x-21=-54x+5\qquad \text{(simplified)}\\\\-12x - 17 = -54x + 5\qquad \text{(added like terms)}\\\\42x-17=5\qquad \text{(added 54x to both sides)}\\\\42x = 22\qquad \text{(added 17 to both sides)}\\\\x=\dfrac{22}{42}\qquad \text{(divided both sides by 42)}\\\\x=\dfrac{11}{21}\qquad \text{(reduced the fraction)}


NOTE: The sign between 4x and 7 is missing in the question you posted.  I assumed it was 4x + 7 in order to solve the equation.

6 0
3 years ago
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What is the simplified form of 3√7 - 5√7? A. -2√7 B. 2√7 C. -√14 D. 15√7
GarryVolchara [31]

https://www.symbolab.com/solver/simplify-calculator/simplify%203%5Csqrt%7B7%7D%20-%205%5Csqrt%7B7%7D

thats the answer kid

4 0
3 years ago
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Help me please!!
bixtya [17]

Answer:

The measurement of angle B is 135°

The measurement of angle A is 60°

The measurement of angle C is 75°

Step-by-step explanation:

Angle A is the same value of 60, Angle B is pretty much just 180 - 45, and so is angle C.

3 0
3 years ago
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