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2 years ago

oint) Solve the following inequality. Enter the answer in interval notation. 10x - 5 < -10(8x - 2)+3 Answer: Note: If the ans

wer includes more than one interval, write the intervals separated by the "union" symbol, U. If needed, enter \infty as infinity and -\infty as -infinity.

Mathematics

1 answer:

nevsk [136]2 years ago

6 0

$10x - 5 < - 10(8x - 2) + 3 \\ 10x < - 80x + 20 + 8 \\ 90x < 28 \\ x < \frac{14} {45}\\x \in (-\infty,\frac{14}{45} )$

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sally picked 6 and 2-thirds pounds of apples. She used 1-half of the apples she picked to make pies. Question How many pounds of

lisabon 2012 [21]

Answer:

$3 \frac{1}{3}$

Step-by-step explanation:

We know that Sally picked 6 2/3 pounds of apples, which can be converted into an improper fraction: 20/3. Multiply 20/3 and 1/2. You will get 20/6, which is 3 1/3. Hope this helped :D

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3 years ago

Can someone please help me

Marrrta [24]

Based on the knowledge of trigonometric expressions and properties of trigonometric functions, the value of the sine function is equal to - √731 / 30.

<h3>How to find the value of a trigonometric function</h3>

Herein we must make use of trigonometric expressions and properties of trigonometric functions to find the right value. According to trigonometry, both cosine and sine are negative in the third quadrant. Thus, by using the fundamental trigonometric expression (sin² α + cos² α = 1) and substituting all known terms we find that:

$\sin \theta = -\sqrt{1 - \cos^{2}\theta}$

$\sin \theta = - \sqrt{1 - \left(-\frac{13}{30} \right)^{2}}$

sin θ ≈ - √731 / 30

Based on the knowledge of trigonometric expressions and properties of trigonometric functions, the value of the sine function is equal to - √731 / 30.

To learn more on trigonometric functions: brainly.com/question/6904750

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2 years ago

using the graphing method to solve the equation 13(0.25)^x=7 Round your answer to the nearest thousandth

netineya [11]

Answer:

x = 0.447

Step-by-step explanation:

You need to use your graphing calculator for this.

In y=, put 13(0.25)^x in Y1 and put 7 in y2. Using 2nd trace, find the intersections.

The answer I got was x = 0.447.

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3 years ago

Solve equation by using the quadratic formula. 15x^2 + 13x = 0

MariettaO [177]

Answer:

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Step-by-step explanation:

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2 years ago

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Kitty [74]

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3 years ago