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trapecia [35]
3 years ago
7

Five sisters each but matching scarves in two pairs of socks the scores are priced at $12 if the total bill for all five sisters

was $120 what was one pair of socks cost
Mathematics
1 answer:
Illusion [34]3 years ago
7 0

Answer:

the one pair of socks cost $2 dollars.

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Solve 4(-4x- 3)> 36
wariber [46]

Answer:

x=3

Step-by-step explanation:

Simplifying

4(4x + -3) = 36

Reorder the terms:

4(-3 + 4x) = 36

(-3 * 4 + 4x * 4) = 36

(-12 + 16x) = 36

Solving

-12 + 16x = 36

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '12' to each side of the equation.

-12 + 12 + 16x = 36 + 12

Combine like terms: -12 + 12 = 0

0 + 16x = 36 + 12

16x = 36 + 12

Combine like terms: 36 + 12 = 48

16x = 48

Divide each side by '16'.

x = 3

Simplifying

x = 3

8 0
3 years ago
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Differentiating a Logarithmic Function In Exercise, find the derivative of the function.
sp2606 [1]

Answer:

\dfrac{d(f(x))}{dx} = \dfrac{2}{x}

Step-by-step explanation:  

We are given the following function in the question:

f(x) = \ln (3x^2)

We have to derivate the given function.

Formula:

\dfrac{d(\ln x)}{dx} = \dfrac{1}{x}\\\\\dfrac{d(x^n)}{dx} = nx^{n-1}

The derivation takes place in the following manner

f(x) = \ln (3x^2)\\\\\dfrac{d(f(x))}{dx} = \displaystyle\frac{d(\ln(3x^2))}{dx}\\\\=\frac{1}{3x^2}\times \frac{d(3x^2)}{dx}\\\\= \frac{1}{3x^2}\times (6x)\\\\=\frac{6x}{3x^2}\\\\=\frac{2}{x}

\dfrac{d(f(x))}{dx} = \dfrac{2}{x}

5 0
2 years ago
The graph of a quadratic function intercepts the x-axis in the two places and the y-axis in one place.
wolverine [178]
Correct Answer:
Option 3: <span>The quadratic function has two distinct real zeros.

The function is quadratic, therefore it can have only 2 zeros. The knowledge of x-intercepts is needed to determine the zeros, y-intercepts has nothing to do with the zeros of a function. The given function has 2 unique x-intercepts, so according to the fundamental theorem of algebra, this function has 2 distinct real roots as number of distinct real roots are equal to the number of x-intercepts. Therefore, option 3 is the correct answer. </span>
4 0
3 years ago
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Help please will mark brainless 25 points due today
harkovskaia [24]

here's the solution,

we know that, sum of <u>measures</u> of each interior angle of a <u>triangle</u> = <u>180°</u>

<u>F</u><u>igure</u><u> </u><u>1</u><u>.</u>

=》

40 + 32 + 9x + 9 = 180

=》

81 + 9x = 180

=》

9x = 180 - 81

=》

x =  \frac{99}{9}

=》

x = 11

<u>Figure</u><u> </u><u>2</u><u>.</u><u> </u>

=》

42 + 63 + 4x + 15 = 180

=》

120 + 4x = 180

=》

4x = 180 - 120

=》

4x = 60

=》

x =  \frac{60}{4}

=》

x = 15

<u>Figure</u><u> </u><u>3</u><u>.</u>

=》

45 + 45 + 3x - 21 = 180

=》

3x + 69 = 180

=》

3x = 180 - 69

=》

3x = 111

=》

x =  \frac{111}{3}

=》

x = 37

8 0
3 years ago
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Which statement is true about the difference 2 square root of 7 − square root of 28?
3241004551 [841]
<span> 2 square root of 7 − square root of 28
= 2</span>√7 - √28
= 2√7 - 2√7
= 0
4 0
3 years ago
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