1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ilia_Sergeevich [38]
3 years ago
11

X^2+3x+2 x^2+x-6 x^2-x-2

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
3 0

Answer:

1. (+1)(+2)

2. (−2)(+3)

3. (−2)(+1)

Step-by-step explanation:

You might be interested in
Similar figures have the same
Dima020 [189]

Answer:

Similar figures have the same shape, but not the same size.

8 0
3 years ago
Read 2 more answers
According to a recent government report, the aging of the U.S. population is translating into many more visits to doctors' offic
olga_2 [115]

Answer:

0.2835 = 28.35% probability that an average person makes at least one MONTHLY visit to doctors' office and hospitals

Step-by-step explanation:

Mean during a time period means that we use the Poisson distribution.

Poisson distribution:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given interval.

It is estimated that an average person makes four visits a year to doctors' offices and hospitals.

A year has 12 months, which means that the monthly mean is \mu = \frac{4}{12} = \frac{1}{3}

What is the probability that an average person makes at least one MONTHLY visit to doctors' office and hospitals?

This is:

P(X \geq 1) = 1 - P(X = 0)

In which

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 0) = \frac{e^{-(\frac{1}{3})}*(\frac{1}{3})^{0}}{(0)!} = 0.7165

P(X \geq 1) = 1 - P(X = 0) = 1 - 0.7165 = 0.2835

0.2835 = 28.35% probability that an average person makes at least one MONTHLY visit to doctors' office and hospitals

6 0
3 years ago
A cubic centimeter holds 1 milliliter of liquid. How many liters of water to the nearest tenth are required to fill a fish tank
Nady [450]
The answer is 24.192. You multiply the length and width and height to get the volume in milliliters, then divide by 1000 to get the volume in liters
4 0
3 years ago
a line represented by y = 5x − 2 and a line perpendicular to it intersect at r(1, 3). what is the equation of the perpendicular
Snezhnost [94]
Y=ax+b, y=cx+d (a≠0, c≠0)
If the two line cross perpendicularly ⇔ ac= -1

So a tangent of the perpendicular line is "-(1/5)".

Then, the equation of the perpendicular line is y=-(1/5)x+a (a is <span> y-intercept</span>).

On the other hand, this equation pass r(1, 3), so 

3 = -(1/5) times 1 + a

∴ a=16 / 5 

Therefore, y=-(1/5)x+16 /5 is answer.

By the way, I'm Japanese so if you find some mistakes in my English, please let me know.


5 0
4 years ago
Find the exact value of tan (arcsin (two fifths)). For full credit, explain your reasoning.
Hitman42 [59]
\bf sin^{-1}(some\ value)=\theta \impliedby \textit{this simply means}&#10;\\\\\\&#10;sin(\theta )=some\ value\qquad \textit{now, also bear in mind that}&#10;\\\\\\&#10;sin(\theta)=\cfrac{opposite}{hypotenuse}\qquad &#10;\qquad &#10;% tangent&#10;tan(\theta)=\cfrac{opposite}{adjacent}\\\\&#10;-------------------------------\\\\

\bf sin^{-1}\left( \frac{2}{5} \right)=\theta \impliedby \textit{this simply means that}&#10;\\\\\\&#10;sin(\theta )=\cfrac{2}{5}\cfrac{\leftarrow opposite}{\leftarrow hypotenuse}\qquad \textit{now let's find the adjacent side}&#10;\\\\\\&#10;\textit{using the pythagorean theorem}\\\\&#10;c^2=a^2+b^2\implies \pm\sqrt{c^2-b^2}=a\qquad &#10;\begin{cases}&#10;c=hypotenuse\\&#10;a=adjacent\\&#10;b=opposite\\&#10;\end{cases}

\bf \pm \sqrt{5^2-2^2}=a\implies \pm\sqrt{21}=a&#10;\\\\\\&#10;\textit{we don't know if it's +/-, so we'll assume is the + one}\quad \sqrt{21}=a\\\\&#10;-------------------------------\\\\&#10;tan(\theta)=\cfrac{opposite}{adjacent}\qquad \qquad tan(\theta)=\cfrac{2}{\sqrt{21}}&#10;\\\\\\&#10;\textit{and now, let's rationalize the denominator}&#10;\\\\\\&#10;\cfrac{2}{\sqrt{21}}\cdot \cfrac{\sqrt{21}}{\sqrt{21}}\implies \cfrac{2\sqrt{21}}{(\sqrt{21})^2}\implies \cfrac{2\sqrt{21}}{21}&#10;
7 0
3 years ago
Other questions:
  • Simplify please<br><br> 7(-5x+8z)=
    7·1 answer
  • What do you get when you smelt iron?<br><br> A. Lava<br> B. Foundry
    15·2 answers
  • I NEED HELP PLEASE!!
    14·1 answer
  • Kelsey solved the following equation:
    13·1 answer
  • A spool of rope contains 65 yards of rope. How many​ 4-foot pieces of rope can be cut from the​ spool? How much rope is left​ ov
    9·1 answer
  • What is Y=3x^2-24x+52 in vertex form? Help
    6·1 answer
  • 50 points and BRAINLIEST<br><br> .15m - .13m = 69.96 - 55.96
    5·1 answer
  • Which expression is equivalent to<br> (5^-2)(5^-1)<br> A. -1/125<br> B. -1/5<br> C. 1/125<br> D. 1/5
    8·1 answer
  • What a common mistake with bisect angles ?​
    11·1 answer
  • Someone please answer will mark brainliest thank you
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!