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3 years ago

Which of the following is the solution to | X-13 |< 18 ?

Mathematics

1 answer:

Furkat [3]3 years ago

7 0

Answer:

A. x<31 and x > -5

Step-by-step explanation:

| X-13 |< 18

Seperate into 2 equations, one positive and one negative, remembering to flip the inequality for the negative

x-13 < 18 and x -13 > -18

Add 13 to each side

x-13+13 < 18+13 and x-13+13> -18+13

x < 31 and x>-5

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Help me on number 10 please.

LenaWriter [7]

Answer:

9.) B. division

10.) 8

Explanation:

9. Which operation to do first in order of operations?

Answer: Applying BODMAS where:

[B] brackets

[O] order

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[M] multiplication

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[S] subtraction

Maintaining order, division operation is done first. Then multiplication and then addition and so on.

10. Given that N = 48 ÷ 3 × 2

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3 0

1 year ago

Read 2 more answers

Find the value of x a) 1 b) 31 c) 24 d) 14

Furkat [3]

So the right answer is 14.

Look at the attached picture

Hope it will help you

Good luck on your assignment

6 0

2 years ago

Solve for x in the given interval. sec x= -2√3/3, for π/2 ≤x≤π

drek231 [11]

Answer:

b. $x=\frac{5\pi}{6}$

Step-by-step explanation:

The given function is

$\sec x=-\frac{2\sqrt{3} }{3},\:\:for\:\:\frac{\pi}{2}\le x \le \pi$

Recall that the reciprocal of the cosine ratio is the secant ratio.

This implies that;

$\frac{1}{\cos x}=-\frac{2\sqrt{3} }{3}$

$\Rightarrow \cos x=-\frac{3}{2\sqrt{3} }$

$\Rightarrow \cos x=-\frac{\sqrt{3}}{2}$

We take the inverse cosine of both sides to obtain;

$x=\cos^{-1}(-\frac{\sqrt{3}}{2})$

$x=\frac{5\pi}{6}$

4 0

3 years ago

The pyramid shown has a square base that is 24 inches on each side. The slant height is 20 inches. What is the surface area of t

pashok25 [27]

The surface area for this is 1536 units.

4 0

2 years ago

A fair dice is rolled 3 times in a row. The outcomes are shown below.

maks197457 [2]

Answer:

1/3

Step-by-step explanation:

I think this is 1/3 because it is a ratio of successful outcomes to total number of outcomes..

Ex. Rolling a 6 sided dice.. you roll a 5... it would be 1/6.

Hope that makes sense.

8 0

2 years ago