Ask question

Ask question

All categories

3 years ago

11

BRAINLIEIEST!!! PLEASE ANSWER FAST!!! Which inequality's solution is graphed here? A) 2x - 5 ≥ 7 B) 2x + 5 ≥ 5 C) 2x + 7 ≥ 5 Eli

minate D) 2x + 5 ≥ 7

1 answer:

Alla [95]3 years ago

8 0

Im sure the answeer is dddddddddddddddddddddddd

You might be interested in

25 fewer than twice a number?

julia-pushkina [17]

Answer:

2x - 25

Step-by-step explanation:

Since we don't know what the number is, just call it x. Twice x can be written as 2x and 25 fewer than 2x is 2x - 25.

5 0

4 years ago

Read 2 more answers

The area of a rectangular restaurant kitchen is 105 square meters. The perimeter is 44 meters. What are the dimensions of the ki

Scilla [17]

Answer:https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%262%263%5C%5C4%265%266%5C%5C7%268%269%5Cend%7Barray%7D%5Cright%5D%20

do not know

Step-by-step explanation:

<h3>sorry but this might be the answer to it</h3>

6 0

3 years ago

I need help solving it please

MatroZZZ [7]

What you do here is replace is the given x value to find the y one

Like for the first box the y (top-to-down) would be found using y=3(-2)+4 which is gives y=-2

Applying the same for each in order:

(-2,-2)
(-1,0)
(0,4)
(1,7)
(2,10)

Ordered pairs are typed in (x,y) format like the answers I gave above

6 0

2 years ago

Sos HELP MEEEEE I HAVE NO CLUE PLZ EXPLAIN !!!

OleMash [197]

2,376 square feet
**
Add the areas of all the sides of the shape.
A triangle's area: 1/2bh
The two triangles' area=24*9=216
The bottom side: 40*24=960
The two other sides: 30*40=1200
Add everything: 216+960+1200=2376

5 0

4 years ago

We learned in that about 69.7% of 18-20 year olds consumed alcoholic beverages in 2008. We now consider a random sample of fifty

maw [93]

Answer:

(1) The expected number of people who would have consumed alcoholic beverages is 34.9.

(2) The standard deviation of people who would have consumed alcoholic beverages is 10.56.

(3) It is surprising that there were 45 or more people who have consumed alcoholic beverages.

Step-by-step explanation:

Let <em>X</em> = number of adults between 18 to 20 years consumed alcoholic beverages in 2008.

The probability of the random variable <em>X</em> is, <em>p</em> = 0.697.

A random sample of <em>n</em> = 50 adults in the age group 18 - 20 years is selected.

An adult, in the age group 18 - 20 years, consuming alcohol is independent of the others.

The random variable <em>X</em> follows a Binomial distribution with parameters <em>n</em> = 50 and <em>p</em> = 0.697.

The probability mass function of a Binomial random variable <em>X</em> is:

$P(X=x)={50\choose x}0.697^{x}(1-0.697)^{50-x};\ x=0,1,2,3...$

(1)

Compute the expected value of <em>X</em> as follows:

$E(X)=np\\=50\times 0.697\\=34.85\\\approx34.9$

Thus, the expected number of people who would have consumed alcoholic beverages is 34.9.

(2)

Compute the standard deviation of <em>X</em> as follows:

$SD(X)=\sqrt{np(1-p)}=\sqrt{50\times 0.697\times (1-0.697)}=10.55955\approx10.56$

Thus, the standard deviation of people who would have consumed alcoholic beverages is 10.56.

(3)

Compute the probability of <em>X</em> ≥ 45 as follows:

P (<em>X</em> ≥ 45) = P (X = 45) + P (X = 46) + ... + P (X = 50)

$=\sum\limits^{50}_{x=45} {50\choose x}0.697^{x}(1-0.697)^{50-x}\\=0.0005+0.0001+0.00002+0.000003+0+0\\=0.000623\\\approx0.0006$

The probability that 45 or more have consumed alcoholic beverages is 0.0006.

An unusual or surprising event is an event that has a very low probability of success, i.e. <em>p</em> < 0.05.

The probability of 45 or more have consumed alcoholic beverages is 0.0006. This probability value is very small.

Thus, it is surprising that there were 45 or more people who have consumed alcoholic beverages.

6 0

3 years ago