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4 years ago

Solve the inequality

Mathematics

1 answer:

harina [27]4 years ago

8 0

Answer:

x > = -400

Step-by-step explanation:

-3x < = 1200 / :(-3)

* ALWAYS REMEMBER : WHEN DIVIDING BY A NEGATIVE NUMBER THE SYMBOL OF THE INEQUALITY CHAGES !

x > = -400

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(cube root of x) + 5 all over cube root of x

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What do you need to do with it

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2 years ago

Write without negative exponets <br> 1/4^-2

dmitriy555 [2]

The rule about negative exponents is that you put the base under "1" in a fraction and the negative exponent becomes positive. For example, $x^{-1}$ becomes $\frac{1}{x}$ . So in your case, $\frac{1}{4} ^{-2} = \frac{1}{ \frac{1}{4} ^{2} } = \frac{1}{ \frac{1}{16} } =16$

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4 years ago

William estimated √140 by placing a point on the number line below. Which is true about his estimate? please guys I need this du

garik1379 [7]

Answer:

Step-by-step explanation:

Familiarize yourself with perfect squares in the neighborhood of 140:

10^2 = 100

11^2 = 121

12^2 = 144

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4 years ago

Built in 2011, the capital gate tower is 150 meters tall (measured vertically from the ground) and makes a 72 degree angle with

Softa [21]

Answer:

Step-by-step explanation:

You can create a right triangle out of this information and then use right triangle trig to solve.

We are given the height of the triangle as the height of the tower which is 150m.

We are given the angle of inclination as the degree the tower makes with the ground which is 72.

From the angle of 72 degrees, which is also known as the reference angle, we have the side across from it (the height) and we are looking for the side adjacent to it (how far from the base of the tower the keys will land). Side opposite the reference angle over side adjacent to the reference angle is the tangent ratio:

$tan(72)=\frac{150}{x}$ and, solving for x,

$x=\frac{150}{tan(72)}$

Make sure your calculator is in degree mode to solve this. Divide 150 by the tan(72) and find that

x = 48.7 m

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4 years ago

If 2d = 5c, then all of the following are true except _____.

Luda [366]

2d = 5c

2/5 = c/d ...true
5/2 = d/c...true
2/c = 5/d...true
2/d = 5/c....not true

4 0

3 years ago

Read 2 more answers