Answer:
1.9 liters.
Step-by-step explanation:
The hundredths digit is 5 so we add 1 to the tenths digit.
Answer: 1.9 liter
Step-by-step explanation: the tenth is the first digit after the decimal point. Anything greater than it equal to 5 will be rounded up. So 1.85 is rounded up to 1.9
Find the measure of ∠ 1 in O.
Answer:
10°
Step-by-step explanation:
The angle subtended at the circumference is half the angle subtended at the centre of the circle i.e. 20°÷2=10°
Adam was curious if quadrilaterals ABCDABCDA, B, C, D and GFEHGFEHG, F, E, H were congruent, so he tried to map one figure onto the other using transformations:
Adam concluded:
"It's not possible to map ABCDABCDA, B, C, D onto GFEHGFEHG, F, E, H using a sequence of rigid transformations, so the quadrilaterals are not congruent."
What error did Adam make in his conclusion?
Answers reflection (b)
Step-by-step explanation:
it’s right on 8th grade khan ywwww
So he tried to reflect(b) map one figure onto the other using transformations.
Are quadrilaterals congruent?If a quadrilateral is a parallelogram, then its opposite sides are congruent. If a quadrilateral is a parallelogram, then its opposite angles are congruent. If a quadrilateral is a parallelogram, then its diagonals bisect each other.
Are two quadrilaterals congruent?Both the theorems are proved now which states that quadrilaterals are congruent to one another. Note: Each diagonal of a parallelogram divides the parallelogram into two congruent triangles and the opposite sides of a parallelogram are congruent.
Learn more about the quadrilaterals are not congruent at
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The amount of time adults spend watching television is closely monitored by firms becayse this helps to determine advertising pricing for commercials. Compete parts (a) through (d).
a) Do you think the variable "weekly time spent watching television" would be normally distributed? Yes or No.
If not, what shape would you expect the variable to have? Skewed Left, Skewed Right, Uniform or Symmetric?
b) According to a certain survey, adults spend 2.35 hours per day watching television on a weekday. Assume that the standard deviation for "time spent watching TV on a weekday" is 1.93 hours. If a random sample of 40 adults is obtained, describe the sampling distribution of x-bar, the mean amount of time spent watching TV on a weekday.
Mean =
A) 2.35
B) 1.89
C) 2.25
SD = (round to six decimal places as needed)
c) Determine the probability that a random sample of 40 adults results in a mean time watching television on a weekday of between 2 and 3 hours.
The probability is ____ .
d) One consequence of the popularity of the Internet is that it is thought to reduce TV watching. Suppose that a random sample of 35 people who consider themselves avid Internet users results in a mean time of 1.89 hours watching TV on a weekday. Determine the likelihood of obtaining a sample mean of 1.89 hours or less from a population who mean is presumed to be 2.35 hours.
The likelihood is ____ .
Based on the result obtained, do Internet users watch less TV? Yes or No.
Answer:
Yes based on the result 0.4841 the internet users watch less TV because the mean would be placed at 0.5 and it is less than 0.5
Step-by-step explanation:
a)The variable "weekly time spent watching television" is normally distributed and is skewed right.
b) Mean = x` 2.35 hours
Standard deviation = s/√n = 1.93/√40=1.93/6.3245553= 0.3051598
c) P(2<X<3) = P (2-2.35/ 0.3051598< Z< 3 -2.35/ 0.3051598)
= P ( -1.14694 < Z <2.13003)
= 0.3729 + 0.4830
=0.8559
So the probability is 0.8559
(0.8559 we check the value of 2.13 from the normal distribution tables and add with the value of 1.14 to get the in between value -1.14694 < Z <2.13003)
d) Here n = 35 , s= 1.93 , mean = 2.35 and x= 1.89
So Putting the values
P (X ≤ 1.89) = P (Z ≤ 1.89- 2.35/ 1.93 / √35)
= P ( Z ≤ -0.238341/ 5.9160797)
= P ( Z ≤ -0.04028)
= 0.5 - 0.0159
= 0.4841
Similarly again subtracting from 0.5 the value from normal distribution table to get less than or equal to value.
Yes based on the result 0.4841 the internet users watch less TV because the mean would be placed at 0.5 and it is less than 0.5
The mean value is 2.35, SD is 1.93 with an SD error of 0.3051597 and the probability is 0.8559, and yes 0.4841 internet users watch less TV.
It is given that the amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials.
It is required to find the standard deviation and probability.
What is a confidence interval for population standard deviation?It is defined as the sampling distribution following an approximately normal distribution for known standard deviation.
We know the formula for standard error:
[tex]\rm SE = \frac{s}{\sqrt{n} }[/tex]
Where 's' is the standard error
and n is the sample size.
In the question the value of s = 1.93 hours
and sample size n = 40
[tex]\rm SE = \frac{1.93}{\sqrt{40} }\\[/tex]
SE = 0.3051597
For the probability between 2 and 3 hours.
= P(2<X<3)
[tex]\\\rm =P(\frac{2-x)}{s} < Z < \frac{3-x)}{s})\\\\\rm = P(\frac{(2-2.35)}{0.3051598} < Z < \frac{(3-x)}{0.3051598})\\\\[/tex] (because the mean value x is 2.35)
=P(-1.14694 <Z < 2.13003)
=0.3729+ 0.4830 ( values get from Z table for -1.14 and 2.13 )
=0.8559
For P(X≤1.89)
[tex]\rm P(Z\leq \frac{(x'-x)}{\frac{s}{\sqrt[]{n} } } )\\\\\rm P(Z\leq \frac{(1.89-2.35)}{\frac{1.89}{\sqrt[]{35} } } )[/tex]
= P(Z ≤ -0.04028)
= 0.5 - 0.0159
=0.4841
Based on the result of 0.4841 the internet users watch less TV because the mean would be placed at 0.5 and it is less than 0.5.
Thus, the mean value is 2.35, SD is 1.93 with an SD error of 0.3051597 and the probability is 0.8559, and yes internet users watch less TV.
Learn more about the standard deviation here:
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Trigonometry!! NEED HELP!!
=============================================
Explanation:
If angle x is the reference angle, then the side 9 is the adjacent side (it is the closer leg to angle x). The hypotenuse is 17 as it is opposite the largest angle. The largest side is always opposite the largest angle in a triangle.
-----------------
cos(angle) = adjacent/hypotenuse
cos(x) = 9/17
x = arccos(9/17)
x = 58.034281249203
x = 58
Arccosine is the same as inverse cosine, written as [tex]\cos^{-1}[/tex]
Make sure your calculator is in degree mode.
-------------
Edit:
After finding x, we can find y
x+y = 90
58+y = 90
y = 90-58
y = 32
6 Hundreds 3 Tens 17 Ones in Standard Form
Answer:
the answer is647
Step-by-step explanation:
600+30+17
Answer:
647
Step-by-step explanation:
600
+ 30
17
_____
647
HELPP !! A pharmaceutical salesperson receives a monthly salary of $5000 plus a commission of
7% of sales. Write a linear equation for the salesperson's monthly wage W in terms of monthly sales S
Answer:
w=5000+0.7s
Step-by-step explanation:
please give 5 star I need it
A fitness center is interested in the average amount of time a client exercises in the center each week. Match the vocabulary word with its corresponding example.
Answer:
Step-by-step explanation:
A. Data of the study: All 45 exercise times there were recorded from the participants in the study
B. Parameter of the study: The average amount of time that all clients exercise in one week.
C. Variable of the study: The amount of time that any given client from the fitness center exercises.
D. Population for the study: All clients at the fitness center.
E. Sample of this study: The 45 client from the fitness center who participated in the study.
F. Statistics of the study: The average amount of time that a sample of clients exercises in one week
what is the volume of the box below ?5cm,8cm,10cm
Answer: Hi!
To find the volume of a box (or cube), you multiply length times width times height.
In this case, you have all of the measurements, so all we have to do is multiply them together!
5cm * 8cm * 10cm = 400
So, the volume of this box is 400cm^3!
Hope this helps!
Express as a trinomal (2x-9) (3x+4)
Answer:
Step-by-step explanation:
Hello, please consider the following.
[tex]\begin{aligned} (2x-9)(3x+4)=\ &2(3x+4)\\&-9(3x+4)\\\\ =\ & 6x+8\\&-27x-36\\\\=\ &(6-27)x+8-36\\\\=\ &-21x-28\end{aligned}[/tex]
Thank you.
-38 - 7y = 2 - 7(y + 6)
Answer:
No solution
Step-by-step explanation:
[tex]-38 - 7y = 2 - 7(y + 6)\\\\\mathrm{Expand\:}2-7\left(y+6\right):\quad -7y-40\\-38-7y=-7y-40\\\\\mathrm{Add\:}38\mathrm{\:to\:both\:sides}\\-38-7y+38=-7y-40+38\\\\Simplify\\-7y=-7y-2\\\\\mathrm{Add\:}7y\mathrm{\:to\:both\:sides}\\-7y+7y=-7y-2+7y\\\\Simplify\\\\0=-2\\\mathrm{The\:sides\:are\:not\:equal}\\No\: solution[/tex]
Answer:
No solution
Step-by-step explanation:
First do distribute property
-38-7y=2-7y-42
then combine like terms the 2 and the -42
-38-7y=-40-7y add 7y from both sides
-38+y=-40 add 38 to -40 you get -2
0=-2 no solution
POINTS!!!!!!
If an object is dropped from a height of h meters and it’s the ground in t seconds, then t = *square root* h/4.9. Suppose that an object is dropped from the top of a building that is 290.57 meters tall. How long does it take to hit the ground?
Round your answer to the nearest tenth....
?????? Seconds
Please state how many seconds first...
Answer:
7.7 seconds
Step-by-step explanation:
Put the given height into the formula and do the arithmetic.
t = √(290.57/4.9) = √59.3 ≈ 7.7 . . . seconds
The object will take 7.7 seconds to hit the ground.
Find the ratio of the area inside the square but outside the circle to the area of the square in the picture
Answer:
0.2146
Step-by-step explanation:
From the picture:
The radius of the circle = r. This means that the area of the circle = πr²
Also For the square, the length of the square = 2r, Therefore the area of the square = Length × length = 2r × 2r = 4r²
The area inside the square but outside the circle = Area of square - Area of circle = 4r² - πr² = r²(4 - π) = 0.8584r²
The ratio of the area inside the square but outside the circle to the area of the square = r²(4 - π) / 4r² = (4 - π) / 4 = 1 - π/4 = 0.2146
a Find the amount compounded annually on Rs 25,000 for 2 years if the rates of
interest for two years ore 10 % and 12 % respectively,
Answer:
Rs 30800
Step-by-step explanation:
The formula for compound interest is
A = P[1 + (r/100)]^t, where
A = amount of compounded interest
P = principal amount
r = interest rate
Applying this to our question, we have
A = 25000 [1 + (10/100)] [1 + (12/100)]
A = 25000 (1 + 0.1) (1 + 0.12)
A = 25000 * 1.1 * 1.12
A = 25000 * 1.232
A = 30800
PLEASE HELP! A) 7 B) 5.7 C) 4.7 D) 8.2
Answer:
[tex]\Large \boxed{\mathrm{A) \ 7}}[/tex]
Step-by-step explanation:
The triangle is a right triangle.
We can use trigonometric functions to solve the problem.
tan(θ) = opp/adj
tan(35) = x/10
Multiply both sides by 10.
10 tan(35) = x
x = 7.00207538...
(9x + 1) -(-7x2 + 4x + 10)
Answer:
= 7x² + 5x - 9
Step-by-step explanation:
(9x + 1) - (-7x² + 4x + 10)
= 9x + 1 - ( -7x² + 4x + 10)
= 9x + 1 + 7x² - 4x - 10
= 7x² + 5x - 9
how many numbers are there from 75 to 586 that are divisible by 12 and 30
Answer:
8
Step-by-step explanation:
Numbers divisible by 12 and 30:
12= 2*630= 5*6LCM(12,30) = 2*5*6= 60So, numbers should be divisible by 60
To find the greatest one divide 586 by 60 and take whole part of quotient, which is 9, so there are 9 multiples of 60 smaller than 586.
Excluding 60 which is less than 75.
So required number is 9 - 1 = 8.
y- (-3y) combine the like terms to create an equivalent expression
Answer:
4y
Step-by-step explanation:
[tex]y- (-3y)\\\\\mathrm{Apply\:rule}\:-\left(-a\right)=a\\=y+3y\\\\=4y[/tex]
Hello there! :D
I love showing people how to use this concept, so lets get right to it! If you have trouble with negative (-) signs and how they interact with each other, I suggest you watch some Khan academy videos, it could realy help you in the future! :)
Alright, so here's the general rule: (multiplication and division)
-,-= +
-,+ = -
+,+=+
So, with this rule, I think we can solve!
Firstly, remember PEMDAS.
Let's look at the signs first. Two negatives equal a positive. Make the 3y in the parenthesis positive. Think of the negative sign as a -1 that is being multiplied by the (-3y) and the y.
That would look like this:
(y) (-1) (-3y)
Now we have:
y*(3y)
So when multiplying a variable by a variable, it becomes squared.
So, we would have 3y^2 or [tex]3y^{2}[/tex]
If you have any questions about this problem feel free to comment on this answer.
I hope this helped you and you have a wonderful day,
Kai xx
Find the inverse of the function f(x)= 6x^3-8
Hello, please consider the following.
[tex](\forall x \in \mathbb{R}) \\ \\ x=(f^{-1}of)(x)\\\\=(fof^{-1})(x)\\\\=f(f^{-1}(x))\\\\=6\left( f^{-1}(x) \right) ^3-8 = x\\\\\text{We need to express }f^{-1}(x) \text{ in function of x.}\\\\\text{Let's do it!}[/tex]
[tex]6\left( f^{-1}(x) \right) ^3-8 = x\\\\\left( f^{-1}(x) \right) ^3 =\dfrac{x+8}{6}\\\\\Large \boxed{\sf \bf \ \ f^{-1}(x)=\sqrt[3]{\dfrac{x+8}{6}}\ \ }[/tex]
Thank you
Linear function g is shown in the graph. Write the slope-intercept form of the equation representing this function.
Answer:
y = -2x + 1
Step-by-step explanation:
First, find the slope with rise/run (y2 - y1) / (x2 - x1)
We can use the points (-1, 3) and (0, 1)
Plug in the points:
(1 - 3) / (0 + 1)
-2/1
= -2
The y-intercept is (0, 1) because that is the point where the line intercepts the y axis. So, we can plug in the slope and y-intercept into the equation:
y = mx + b
y = -2x + 1
Milo receives a commission of 8% on all sales. If his commission on a sale was $97.84 find the cost of the item he sold
Answer:
Cost of the item sold= $1,223
Step-by-step explanation:
Let
x= cost of the item sold
$97.84=commission on the item
Percentage of the commission=8%
To find the cost of the item sold
Commission=8% of cost of the item
97.84=0.08 * x
97.84=0.08x
Divide both sides by 0.08
97.84 / 0.08 = 0.08x / 0.08
1,223=x
x=$1,223
Therefore, cost of the item sold= $1,223
f the perimeter of the adult pinball machine is 167 inches, what is the length, in inches of Segment line G prime A prime ? Type the numeric answer only in the box below
Answer:
8 inches
Step-by-step explanation:
The computation of the length, in inches of Segment line G prime A prime is shown below:-
Data provided
In two quadrilateral GAME and G'A'M'E',
ME = 35 inches
AM = GE = 56 inches
M'E' = 14 inches
Also, the perimeter of quadrilateral GAME = 167 inches
GA + AM + ME + GE = 167
Now we will put the values into the above equation
GA + 56 + 35 + 56 = 167
GA + 147 = 167
So,
GA = 20 inch
Therefore
GAME is closely related to G'A'M'E'
Now,
By the property of similar figures,
[tex]\frac{M E}{M' E'} = \frac{GA}{G'A'}[/tex]
[tex]G'A' = \frac{M'E'\times GA}{ME} \\\\ = \frac{14\times 20}{35}[/tex]
= 8 inches
#12 will mark as brainliest
Answer:
-i
Step-by-step explanation:
[tex]\sqrt{-1}[/tex] * [tex]\sqrt{-1}[/tex] * [tex]\sqrt{-1}[/tex] = -i
Can someone help ! Please !!!! I don’t understand!
Answer:
(A∩B')∪(A'∩B)(A∩B)'Step-by-step explanation:
Here, we'll use an apostrophe to signify the complement of a set.
__
(a) The shaded portion is two disjoint (non-overlapping) sections, so must be the union of something. The shaded space on the left is that part of A that is not in B, so it is A∩B'. Similarly, the shaded space on the right is that part of set B that is not in set A: A'∩B. Then the shaded area altogether is the union of these sets:
(A∩B')∪(A'∩B)
__
(b) For this one, it might be easier to identify the unshaded area. That is where the sets A and B overlap, so it is A∩B. Then the area that is not that area is the complement of this:
(A∩B)'
ASAP: “Use a number line to order the numbers from least to greatest.” 1/5, -0.5, 0, 0.4, 1 1/2, -1.
Answer:
-1, -0.5, 0, 0.4, 1/5, 11/2
Step-by-step explanation:
Find the eccentricity, b. identify the conic, c. give an equation of the directrix, and d. sketch the conic.
r=12/3--10 Cosθ
Answer:
a) 10/3
b) hyperbola
c) x = ± 6/5
Step-by-step explanation:
a) A conic section with a focus at the origin, a directrix of x = ±p where p is a positive real number and positive eccentricity (e) has a polar equation:
[tex]r=\frac{ep}{1\pm e*cos\theta}[/tex]
Given the conic equation: [tex]r=\frac{12}{3-10cos\theta}[/tex]
We have to make it to be in the form [tex]r=\frac{ep}{1\pm e*cos\theta}[/tex]:
[tex]r=\frac{12}{3-10cos\theta}\\\\multiply\ both\ sides\ by\ \frac{1}{3} \\\\r=\frac{12*\frac{1}{3}}{(3-10cos\theta)*\frac{1}{3}}\\\\r=\frac{12*\frac{1}{3}}{3*\frac{1}{3}-10cos\theta*\frac{1}{3}}\\\\r=\frac{4}{1-\frac{10}{3}cos\theta } \\\\r=\frac{\frac{10}{3}(\frac{6}{5} ) }{1-\frac{10}{3}cos\theta }[/tex]
Comparing with [tex]r=\frac{ep}{1\pm e*cos\theta}[/tex]
e = 10/3 = 3.3333, p = 6/5
b) since the eccentricity = 3.33 > 1, it is a hyperbola
c) The equation of the directrix is x = ±p = ± 6/5
consider the set of A={0,3,5,8}
Stavros is 1.6m tall. His sister is 95cm tall. How many centimeters taller is Stavros than his sister?
what is 826 x 3,569 equal to
Answer:
826×3569=2947994 ans
Use Stokes' Theorem to evaluate C F · dr where C is oriented counterclockwise as viewed from above. F(x, y, z) = (x + y2)i + (y + z2)j + (z + x2)k, C is the triangle with vertices (5, 0, 0), (0, 5, 0), and (0, 0, 5).
Answer:
[tex]\mathbf{\int_C F*dr= -125}[/tex]
Step-by-step explanation:
Given that:
[tex]F(x,y,z) = ( x+ y^2) i + (y +z ^2) j+(z + x^2)k[/tex] , where C is the triangle with vertices (5, 0, 0), (0, 5, 0), and (0, 0, 5).
The objective is to use Stokes' Theorem to evaluate CF. dr
Stokes Theorem : [tex]\int_c F .dr = \iint _s \ curl \ F. dS[/tex]
To estimate curl F , we need to find the partial derivatives:
So;
[tex]P = x+y^2[/tex]
partial derivative is:
[tex]\dfrac{\partial P }{\partial y }= 2y[/tex]
[tex]\dfrac{\partial P }{\partial z }= 0[/tex]
[tex]Q = y + z^2[/tex]
partial derivative is:
[tex]\dfrac{\partial Q }{\partial x }= 0[/tex]
[tex]\dfrac{\partial Q }{\partial z }= 2z[/tex]
[tex]R = z +x^2[/tex]
partial derivative is:
[tex]\dfrac{\partial R }{\partial x }= 2x[/tex]
[tex]\dfrac{\partial R }{\partial y }= 0[/tex]
These resulted into
curl F = (0 - 2z)i + ( 0 -2x) j + ( 0 - 2y) k
= ( -2z, -2x, -2y )
The normal vector and the equation of the plane can be expressed as follows:
If a = (0,5,0 - ( 5,0,0)
a = ( -5,5,0 )
Also ,
b = (0, 0,5) - (5,0,0)
b = (-5. 0,5)
However,
[tex]a \times b = \begin {vmatrix} \begin{array} {ccc} i &j&k \\-5&5&0 \\-5&0&5 \\ \end {array} \end {vmatrix}[/tex]
a × b = (25 - 0)i - (-25-0)j+ (0+25)k
a × b = 25i +25j +25k
∴ the normal vector can be n = (1,1,1)
If we assume x to be x = (x,y,z)
and [tex]x_0 = (5,0,0)[/tex]
Then
[tex]n*(x-x_0) =0[/tex]
[tex](1,1,1)*(x-5,y-0,z-0) =0[/tex]
[tex]x-5+y+z =0[/tex]
collecting like terms
x +y +z = 5
now, it is vivid that from the equation , the plane of the normal vector =(1,1,1)
Similarly, x+y+z = 5 is the projection of surface on the xy - plane such that the line x +y = 5
Thus; the domain D = {(x,y) | 0 ≤ x ≤ 5, 0 ≤ y ≤ 5 - x}
To evaluate the line integral using Stokes' Theorem
[tex]\iint_S \ curl \ F .dS= \iint _S (-2z,-2y,-2x) *(1,1,1) \ dS[/tex]
[tex]\iint_S \ curl \ F .dS= \iint _S -2z-2y-2x \ dS[/tex]
[tex]\iint_S \ curl \ F .dS= \iint _S -2(5-x-y)-2y-2x \ dS[/tex]
[tex]\iint_S \ curl \ F .dS= \iint _S -(10) \ dS[/tex]
[tex]\int_C F*dr= \int ^5_0 \ \int ^{5-x}_0 -10 \ dy \ dx[/tex]
[tex]\int_C F*dr= -10 \int^5_0 (5-x) \ dx[/tex]
[tex]\int_C F*dr= -10 \begin {bmatrix} 5x - \dfrac{x^2}{2} \end {bmatrix}^5_0[/tex]
[tex]\int_C F*dr= -10 \begin {bmatrix} 25 - \dfrac{25}{2} \end {bmatrix}[/tex]
[tex]\int_C F*dr= -10 \begin {bmatrix} \dfrac{25}{2} \end {bmatrix}[/tex]
[tex]\mathbf{\int_C F*dr= -125}[/tex]
A company prices its tornado insurance using the following assumptions:
• In any calendar year, there can be at most one tornado.
• In any calendar year, the probability of a tornado is 0.11.
• The number of tornadoes in any calendar year is independent of the number of tornados in any other calendar year.
Required:
Using the company's assumptions, calculate the probability that there are fewer than 3 tornadoes in a 14-year period.
Answer:
The probability is [tex]P(X < 3) = P(X \le 3-1 = 2 ) = 0.8074[/tex]
Step-by-step explanation:
From the question we are told that
The probability of a tornado is [tex]p = 0.11[/tex]
The sample size is [tex]n = 14[/tex]
Since the number of tornadoes in any calendar year is independent of the number of tornadoes in any other calendar year and there can be only outcome so we can evaluate probability using binomial distribution.
The probability of a tornado not occurring is mathematically evaluated
[tex]q = 1 - p[/tex]
=> [tex]q = 1 - 0.11[/tex]
=> [tex]q = 0.89[/tex]
The probability that there are fewer than 3 tornadoes in a 14-year period is mathematically represented as
[tex]P(X < 3) = P(X \le 3-1 = 2 ) = \left n } \atop {}} \right. C_2 * p ^2 q^{n- 2 } + \left n } \atop {}} \right. C_1 * p ^1 q^{n- 1 } + \left n } \atop {}} \right. C_0 * p ^r q^{n- 0 }[/tex]
[tex]P(X < 3) = P(X \le 3-1 = 2 ) = \left 14 } \atop {}} \right. C_2 * (0.11) ^2 (0.89)^{14- 2 } + \left 14 } \atop {}} \right. C_1 * (0.11) ^1 (0.89)^{14- 1 } + \left 14 } \atop {}} \right. C_0 * (0.11) ^0 (0.89)^{14- 0 }[/tex]
[tex]P(X < 3) = P(X \le 3-1 = 2 ) = 91 * 0.0121*0.247 + 14 * 0.11*0.2198 + 1 * 1 * 0.197[/tex]
[tex]P(X < 3) = P(X \le 3-1 = 2 ) = 0.8074[/tex]