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3 years ago

What is the answer?

Mathematics

1 answer:

Aloiza [94]3 years ago

7 0

Answer:

1x+-8(-4)=b

Step-by-step explanation:

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Ainat [17]

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d.25 that is the answer of the question

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The pool is located at (0,0) to get to your house from the pool you walk three blocks west and one block north what ordered pair

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Answer:

(-3, 1) quadrant II (2)

Step-by-step explanation:

An image of the coordinate plane is show. The quadrants start at the top right and move around in the counter-clockwise direction. The x-axis is horizontal (side to side) and y-axis is vertical (up and down). Starting at the origin of the coordinate plane (0, 0) and going three blocks west (left) would put you at -3 on the x-axis. If you then proceed to go north (up) +1, you would now be at point (-3, 1) which is a (-x, +y) or in quadrant II.

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4 years ago

Solve l 3x-7 l = 2

Lelechka [254]

Answer:

1) Solutions are x = 3 and x = 5/3

2) Solution are x ≤ 13/2 and x ≤ -3/2

Step-by-step explanation:

1) Given absolute inequality,

|3x-7| = 2

⇒ 3x - 7 = ± 2

⇒ 3x = 7 ± 2

$\implies x=\frac{7\pm 2}{3}$

$x=\frac{7+2}{3}\text{ or }x=\frac{7-2}{3}$

$\implies x = 3\text{ or }x=\frac{5}{3}$

2) l 2x-5 l ≤ 8

⇒ 2x-5 ≤ ±8

⇒ 2x ≤ 5 ± 8

$\implies x\leq \frac{5\pm 8}{2}$

$x\leq \frac{5+8}{2}\text{ or }x\leq \frac{5-8}{2}$

$\implies x \leq \frac{13}{2}\text{ or }x\leq-\frac{3}{2}$

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3 years ago

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This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive an

igomit [66]

Answer:

$\frac{d}{dx}[f(x)+g(x)+h(x)] = \frac{9\cdot x^{8}}{\sqrt{1-x^{18}}} - 81\cdot x^{80}-2\cdot x$

Step-by-step explanation:

This derivative consist in the sum of three functions: $f(x) = 81\cdot \sin^{-1} x^{9}$ , $g(x) = - x^{81}$ and $h(x) = - x^{2}$ . According to differentiation rules, the derivative of a sum of functions is the same as the sum of the derivatives of each function. That is:

$\frac{d}{dx} [f(x)+g(x) + h(x)] = \frac{d}{dx} [f(x)]+\frac{d}{dx} [g(x)] +\frac{d}{dx} [h(x)]$

Now, each derivative is found by applying the derivative rules when appropriate:

$f(x) = 81\cdot \sin^{-1} x^{9}$ Given

$f'(x) = \frac{9\cdot x^{8}}{\sqrt{1-x^{18}}}$ (Derivative of a arcsine function/Chain rule)

$g(x) = - x^{81}$ Given

$g'(x) = -81\cdot x^{80}$ (Derivative of a power function)

$h(x) = - x^{2}$ Given

$h'(x) = -2\cdot x$ (Derivative of a power function)

$\frac{d}{dx}[f(x)+g(x)+h(x)] = \frac{9\cdot x^{8}}{\sqrt{1-x^{18}}} - 81\cdot x^{80}-2\cdot x$ (Derivative for a sum of functions/Result)

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3 years ago

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What is the answer?