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dusya [7]
3 years ago
8

Solve this inequality

Mathematics
2 answers:
Evgen [1.6K]3 years ago
5 0
Answer is x< -14.28
The < has a line under
nadya68 [22]3 years ago
5 0
\dfrac{x}{-28} \geq 0.51

This is the inequality. Let's multiply both sides by -28.
When multiplying/dividing both sides of an inequality by a negative number, we reverse the symbol.

x \leq 0.51 \times (-28)
x \leq -14.28

That's your solution to the inequality. Hope this helps! :)
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Aleksandr [31]

ab^2 = 15^2 + 8^2
ab^2 = 289
ab = 17

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2 years ago
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What is the range of the function y = x 2?
Leno4ka [110]

Answer:

\mathrm{Range\:of\:}x^2:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)\ge \:0\:\\ \:\mathrm{Interval\:Notation:}&\:[0,\:\infty \:)\end{bmatrix}

The graph is also attached below.

Step-by-step explanation:

Given the function

y=x^2

  • We know that the range of a function is the set of values of the dependent variable for which a function is defined.

\mathrm{For\:a\:parabola}\:ax^2+bx+c\:\mathrm{with\:Vertex}\:\left(x_v,\:y_v\right)

\mathrm{If}\:a

\mathrm{If}\:a>0\:\mathrm{the\:range\:is}\:f\left(x\right)\ge \:y_v

a=1,\:\mathrm{Vertex}\:\left(x_v,\:y_v\right)=\left(0,\:0\right)

f\left(x\right)\ge \:0

Thus,

\mathrm{Range\:of\:}x^2:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)\ge \:0\:\\ \:\mathrm{Interval\:Notation:}&\:[0,\:\infty \:)\end{bmatrix}

The graph is also attached below.

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3 years ago
Cindy is preparing for a 25-mile charity run hosted by her school's Athletic Club on their home track. In preparation for the ru
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What are the answer choices?

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3 years ago
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Two boats left a base camp at bearing of S60°E and S50°W at speeds of 50km/h and 70km/h respectively. Find the distance between
ivolga24 [154]

Answer:

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Step-by-step explanation:

Let the base camp is point A and boats' locations after two hours are points B and C.

By connecting the three points together we get a triangle ABC with sides:

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  • AC = 70*2 = 140 km

The angle between AB and AC is:

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We are looking for the distance BC, which can be found by using the law of cosines:

  • BC² = AB² + AC² - 2AB*AC*cos ∠BAC
  • BC² = 100² + 140² - 2*100*140*cos 110°
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  • BC = √39176.56 = 197.93 km (rounded)

The distance between the boats is 197.93 km.

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2 years ago
True or false the reciprocal of 5 is 1/5<br>シ​
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Answer:

True

Step-by-step explanation:

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