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3 years ago

truth or false? a system of two linear inequalities has either no points or infinitely many points in its solution

Mathematics

2 answers:

Colt1911 [192]3 years ago

3 0

Answer:

True

Step-by-step explanation:

Basile [38]3 years ago

3 0

True
because a system of two linear inequalities has points

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I think i know this but still not sure if i am right

Ksivusya [100]

Answer:

School Sucks!

Step-by-step explanation:

Half of this stuff you will never use in real life!

6 0

3 years ago

(PLEASE HELP) A red die is tossed and then a green die is tossed. What is the probability that the red die shows a number larger

Kruka [31]

Answer:

2/3

Step-by-step explanation:

Well, it supplied the formula, so let's start from there.

P(A or B) = P(A) + P(B) - P(A and B)

Let A = the probability that the red die shows a number larger than three

Let B = the probability that the green die shows a number less than three

I'm assuming they both have 6 numbers on them, like a regular die.

So there are 3 possibilities that are larger than 3 (4, 5, and 6) and 6 total possibilities, so A = 3/6.

There are 2 possibilities that are less than 3 (1 and 2) and 6 total possibilities, so B = 2/6.

Plug that into the formula.

P(A or B) = 3/6 + 2/6 - P(A and B)

Now we have to subtract the probability that both A and B happen, which is 3/6 * 2/6 = 6/36 = 1/6.

P(A or B) = 3/6 + 2/6 - 1/6

P(A or B) = 4/6 = 2/3

5 0

3 years ago

A large company put out an advertisement in a magazine for a job opening. The first day the magazine was published the company g

Mazyrski [523]

Answer:

638

Step-by-step explanation:

The total number of responses is the value of a geometric series with first term 70 and common ratio 1-10% = 0.90. That sum is given by the formula ...

Sn = a1·(1 -r^n)/(1 -r)

where r is the common ratio, n is the number of terms, and a1 is the first term.

The sum of n=23 terms of the series with a1=70 and r=0.9 is ...

S23 = 70·(1 -0.9^23)/(1 -0.9) = 700(1 -0.9^23) ≈ 638

The model predicts 638 total responses over the first 23 days.

4 0

3 years ago

At a park, it costs $9.75 an hour to rent a bicycle. It costs $7.25 an hour to rent a scooter. Aaron has a coupon

klemol [59]

Answer:

Step-by-step explanation:

I would write an inequality at this point

The variable would be the amount of hours(x) it would take for the costs to tip the scales

9.75x-10≥7.25x

-10≥-2.5x

4≥x

It would take them 4 hours for the costs to be equal, so anything higher than this would work

8 0

3 years ago

Read 2 more answers

The function d(s) = –5s – 15 models the depth, in feet, of a rock that Dante dropped into a lake s seconds after he lost sight o

Ne4ueva [31]

Answer:

The x-intercept will tell you how many seconds have passed before Dante lost sight of the rock.

Step-by-step explanation:

The problem specifies that the function d(s) will model the depth in feet of a rock that Dante dropped into a lake s seconds after he lost sight of the rock.

In this case we are using an s instead of the x, so the x-intercept will represent a given time. We can find the x-intercept by setting the function equal to zero, like this:

-5s-15=0

when solving for s we get:

$-5s=15$

$s=-\frac{15}{5}$

s=-3

This means that Dante dropped the ball into a lake 3 seconds before he lost sight of the rock. This is what the negative stands for, some time in the past.

So the x-intercept tells us the time it took for Dante to lost sight of the rock.

8 0

3 years ago