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2 years ago

What does a closed circle on a number line indicate? Is it the solution does not include that number?

1 answer:

3 0

No, a closed circle does include that number.

Closed circles are used for greater than or equal to or less than or equal to
Open circles are only used for greater than or less than

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What is the ratio of 420m to 1 km

suter [353]

Answer:

21/50 or 21:50

Step-by-step explanation:

1km = 1000m

That means one meter is equal to 1/1000 of a km.

420 meters is 420/1000 of a km which is equal to 42/100 = 21/50 or 21:50

Is it right?

Also can I have Brainiest

7 0

3 years ago

Read 2 more answers

Select the choice that translates the following verbal phrase correctly to algebra:

likoan [24]

The answer is one halfn − 16

Let the number be n.

One half of a number is (1/2n)
decreased by 16 is (-16)

one half of a number decreased by 16 is
1/2n - 16

Or one halfn − 16

4 0

2 years ago

What value of x satisfies

LenaWriter [7]

Answer:

See explanation

Step-by-step explanation:

The given trigonometric equation is $cos(90-x)=-\frac{\sqrt{3} }{3}$ .

We take the inverse cosine of both sides to get:

$90-x=cos^{-1}(-\frac{\sqrt{3} }{3})$

$90-x=125$

$x=125-90$

$x=-35\degree=325\degree$ to the nearest degree

None of the options satisfies the given equation.

But if the question is actually;

$cos(90-x)=-\frac{\sqrt{3} }{2}$

Then;

$90-x=\cos^{-1}(-\frac{\sqrt{3} }{2})$ .

$90-x=210$ .

$x=-120\degree$ .

$x=360-120=240\degree$ .

In this case the answer will be B

5 0

3 years ago

Read 2 more answers

A man travelled 3/5 of his journey by rail, 1/4 by a taxi, 1/8 by a bus and the remaining 2 km on foot.What is the length of his

docker41 [41]

Hello friend,here is the solution

Let x be the total distance 

Distance travelled by rail = 3/5 x 

Distance travelled by taxi = 1/4 x

Distance travelled by bus = 1/8 x 

The equation we obtain is 
========================

x = 3/5 x + 1/4 x + 1/8 x +2 

______________________________________

hope this solution helps you......

7 0

3 years ago

Sharon is preparing for a trip to Kuwait. She calculates that she will need $1,166 to be converted to Kuwaiti dinar. If the

Dafna11 [192]

Answer:

Step-by-step explanation:

Just multiply 1166 by 0.2879

6 0

2 years ago