Answer:
Undefined
Step-by-step explanation:
The x-coordinates are ths same, so this is a vertical line. Vertical lines have undefined slope.
Find X? x+14+x3=78 How can I find X? Please answer. Thanks so much! (This is my older sister's account btw)
The value of variable x in the equation is 16.
How to find the variable x in the equation?The equation represented as follows:
x + 14 + x³ = 78
The value x is the variable.
A variable is number represented with a letter in an equation.
Therefore,
x + 14 + 3x = 78
subtract 14 from both sides of the equation
x + 3x + 14 - 14 = 78 - 14
x + 3x = 64
Therefore,
4x = 64
divide both sides by 4
4x / 4 = 64 / 4
x = 16
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Which set of ordered pairs does not represent a function?
{(5,7), (4,-2), (-8,8), (4,-9)}
{(6,-2), (-2, -7), (-9,-4), (8,-7)}
{(-6,-7), (0,9), (6,-7), (3, -4)}
{(4,6), (9,-8), (3,2), (-9,-8)}
if a baseball player has a batting average of 0.330, what is the probability that the player will get the following number of hits in the next four times at bat?
The player has a 0.293 percent probability of getting the subsequent number of hits in the subsequent four at-bats.
What does probability mean in math?Probability is a branch of mathematics that deals with numerical representations of the likelihood of an event occurring or of a proposition being true. The probability of an event is a number between 0 and 1, with 0 approximately denoting impossibility and 1 denoting certainty.
In light of the information provided,
designate X as the random variable indicating the player's hit total during his subsequent four at-bats.
Assume that the player hits or misses on each of the following four at-bats in a random order. Consider it a success if the player gets a hit as well.
The probability of "success" is because of the batting average, which is 0.330.
In this case, x can be thought of as the overall success rate across the four at-bats. Inferring that X has a binomial distribution with p=0.330 as its parameters
n=4 p=0.330
Since p denotes the probability of success, the probability of failure is
q=1-0.330
=670
The probability mass function of x here is
f(x)={(4 0)*(0.330)ˣ (0.670)⁽⁴⁻ˣ⁾
The probability that the player will get exactly 2 hits, that is, is calculated below:
P(2)=F(2)={(4+2)*(0.330)² (0.670)²
=6[0.04888]
=0.29328
Thus, the probability that the player will get exactly 2 hits is 0.239.
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The Highest Common Factor of a
and b is 48 and the Lowest
Common Multiple is 1680.
Given that a < b and that both
numbers are greater than 48,
work out the values of a and b.
Answer:
a = 240
b = 336
Step-by-step explanation:
To find LCM of 2 number:
list all prime factors that appear in either numbers. If a factor appears more than once in one of the numbers list it that many times. Multiply these together to get LCMTo find HCF of 2 numbers:
List all prime factors both numbers. Multiply these together to find HCFIn this question LCM and HCF is already given but the numbers a and B are unknown.
To find a and B we do the opposite.
Further explanation is in the attached file please open as you will get a clear understanding of the answer.
the scale of a map is 1:10000000. what is the real distance between two cities if the distance between them is 1.7dm
Answer:
See below:
Explanation:
1.7 dm = .17 m assuming dm is decimeter
.17m * 10^7 scale = 1.7 x 10^6 m = 1.7 x 10^3 km = 1700 km
Write equations for the horizontal and vertical lines passing through the point (8,1)
Check the picture below.
Answer:
Step-by-step explanation:
Horizontal line is y = 1
Vertical lone is x = 8.
help pls, thank you
Is 4.887888 a rational number
Answer:
Step-by-step explanation:
yes it is
if anyone can help lmk brainly answer and 20 points
a)Midpoints are (-6.5,-4).
b)Midpoints are (-6.5,-4).
What are midpoints?In geometry, a line segment's midpoint is referred to as the midpoint. It serves as both the segment's and the ends' centroid, and it is equally spaced from both. The portion is halved by it. The midpoint formula is employed when it is important to pinpoint the exact intersection of two given points. The point that splits a line segment described by two points in half can thus be found using this method. The halfway is the precise numerical intersection of two integers. The two-number average computation and the midpoint calculation are equivalent. Consequently, you may get the halfway point between any two integers by adding any two numbers together and dividing by two.
Given Data
Mid point formula = [tex]\frac{x+x}{2}[/tex]¹ , [tex]\frac{y+y}{2}[/tex]¹
a) (2,-1) (-8,6)
Equating values in formula,
[tex]\frac{2-8}{2}[/tex] , [tex]\frac{-1+6}{2}[/tex]
(-4,2.5)
Midpoints are (-4,2.5)
b) (-8,-9) (-5,1)
Equating,
[tex]\frac{-8-5}{2}[/tex] , [tex]\frac{-9+1}{2}[/tex]
[tex]\frac{-13}{2}[/tex] , [tex]\frac{-8}{2}[/tex]
(-6.5,-4)
Midpoints are (-6.5,-4).
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please help only one question i don’t get ;( i will mark brainliest
The graph plotted represents a discrete data
The domain of the function is -2 ≤ x ≤ 2
The range of the function is 1 ≤ y ≤ 5
The graph plotted is represent circle functions
What is discrete data?This is a term used to represent data that can be estimated by counting. The circle graph is an instance of methods of representing discrete data.
What is domain and range?The term domain refers to the input variables on a graph, the domain is usually plotted on the x axis.
Range is a term that describes the output functions and are usually plotted on the y axis.
The function plotted is a circle with a radius of 2 units.
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A production process is checked periodically by a quality control inspector. The inspector selects simple random samples of finished products and computes the sample mean product weight. If test results over a long period of time show that of the values are over pounds and are under pounds, what are the mean and the standard deviation for the population of products produced with this process?.
The mean and the standard deviation for the population of products are 2.0 and 0.3329, respectively.
What is defined as the standard deviation?A standard deviation (or) is a measure of how widely distributed the data is in regards to the mean. A low standard deviation indicates that data is clustered around the mean, whereas a high standard deviation implies that data is more spread out.The mean and standard deviation of the population of products produced by the process are 2.0 and 0.3329, respectively.
Start by determining the population mean which use:
μ = (L + U)/2
Where:
L = 1.9 and U = 2.1
Put the values;
μ = (1.9 + 2.1)/2
μ = 2.0
When p = 5%, the z value from the probability z table is:
z = -1.645
In addition, the z-score is:
z = (x - μ)/(σ/√n)
Put the values;
-1.645 = (1.9 - 2.0)/(σ/√30)
Simplify the equation.
σ = 0.3329
As a result, the mean and standard deviation again for population of products manufactured by the process are 2.0 and 0.3329, respectively.
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The complete question is-
A production process is checked periodically by a quality control inspector. The inspector selects simple random samples of 30 finished products and computes the sample mean product weights x¯. If test results over a long period of time show that 5% of x¯ the values are over 2.1 pounds and 5% are under 1.9 pounds, what are the mean and the standard deviation for the population of products produced with this process?
Helppp pls asappp simple math
Answer:
D. reflection over the y-axis.
Step-by-step explanation:
Reflections are the samere same shapes, but mirrored and over a certain axis (x or y axis). In this case, we see a reflection over the y-axis.
Stephen hit the ball 12 times out of 16 bats in the first half of the season in six times out of the 14 at that in the second half of the season what is his batting average for the first full season written as a decimal
The average for the first full season when Stephen hit the ball is 0.60.
What is the average?The average for the first full season can be determined by adding the number of time he hit the ball in the first half and the second half of the season together and then dividing it by the total number of bats.
Average is a measure of central tendency. Average is also known as mean. Other measures of central tendency are mode and median.
Average = sum of the times he hit the ball / total number of bats
(12 + 6) / (16 + 14)
18 / 30 = 0.60
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find both the number combinations in the number of permutations for 9 objects taken 7 at a time
Answer
There are 36 combinations and 181440 permutations
Explanation
The number of combinations of n object taking r at a time is given by the formula;
[tex]^nC_r=\frac{n!}{r!(n-r)!}[/tex]From the question, n = 9 and r = 7, then substitute these values into the formula
[tex]^9C_7=\frac{9!}{7!(9-7)!}=\frac{9!}{7!\text{ }2!}=\frac{9\cdot8\cdot7!}{7!\times2}=\frac{72}{2}=36[/tex]The number of permutations of n object taking r at a time is given by the formula;
[tex]^nP_r=\frac{n!}{(n-r)!}[/tex]Also, n = 9 and r = 7, then substitute these values into the formula to get the number of permutations
[tex]^9P_7=\frac{9!}{(9-7)!}=\frac{9!}{2!}=\frac{9\cdot8\cdot7\cdot6\cdot5\cdot4\cdot3\cdot2!}{2!}=181440[/tex]Therefore, there are 36 combinations and 181440 permutations
2a + 3=7 and 6x +10y =40 what is the value of 6a+9b what is the value of 3x +5y
Using the given information, the value of 6a + 9b is 21 and the value of 3x + 5y is 20
Evaluating an expressionFrom the question, we are to determine the values of the given expressions.
From the given information,
2a + 3b = 7
and
6x + 10y = 40
To determine the value of 6a + 9b, multiply the first equation by 3.
That is
3 × [ 2a + 3b = 7
6a + 9b = 21
∴ The value of 6a + 9b is 21
To determine the value of 3x + 5y, we will divide the second equation by 2
That is,
6x + 10y = 40 ] ÷ 2
3x + 5y = 20
The value of 3x + 5y is 20
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3 1/4 x 1 1/6 as a mixed number in simplest form
A line is drawn so that it passes through the points (3, 4) and (4, 1)
What is the slope of the line?
A: 1/3
B: 3
C: -1/3
D: -3
Answer:
m=y2-y1/x2-X1 so the slope is equal to -3
After 5 years, $8,000 deposited in a savings account with simple interest had earned $3,600 in interest. What was the interest rate?
Answer:
9%
Step-by-step explanation:
So first we need to find how much interest he got in a single year.
3600 ÷ 5 = 720
Now we find out how much 720 is compared to 8000.
720 ÷ 8000 = 0.09
Then we make that a percentage:
9%
To construct the angle bisector of ∠ABC, first set the point of the compass on and draw an arc through and
The construction of the angle bisector of [tex] \angle ABC[/tex], gives the completed statement as follows;
Set the point of the compass on B and draw an arc through arms AB and BCWhat is an angle bisector?An angle bisector is the ray or line, dividing an angle into two congruent angles.
The steps required to construct the angle bisector of [tex] \angle ABC[/tex] is presented as follows;
Place the compass at point B which is the vertex of [tex] \angle ABC[/tex] and draw arcs to intersect the arms or segments BA and BCLabel the point of intersection of the arcs and the arms of the angle [tex] \angle ABC[/tex] as points D and EPlace the compass at point D and draw an arc on the inside of [tex] \angle ABC[/tex] and on the side further from point B than D Repeat the above process by placing the compass at point E and drawing an arc to intersect the arc drawn from point D at point FJoin the points B and F with the straightedge to complete the construction of the angle bisector of [tex] \angle ABC[/tex], which is segment BFThe complete statement is therefore;
To construct the angle bisector of.[tex] \angle ABC [/tex], first set the point of the compass on B and draw an arc through BA and BC
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HELP PELASE
Jerry is planning a 500-mile trip and estimates it will take 10 hours. Approximately how fast will he be traveling?
If it helps i have the image here :]
Answer:
50miles an hour
Step-by-step explanation:
50miles an hour because R = d/t so 500 / 10 is 50
so rate is 50/hour
Geometry
In the diagram, ZJKM is a straight angle
Intro
K
M
Which statements about the diagram are true? Check
all that apply.
Dk is an angle bisector.
OLKQ is bisected.
Dm/JKL=45"
Om MKQ+m/PKQ = m/PKM
OPK is an angle bisector.
OZJKL
The statements that are true are:
3) m∠JKL = 45°
4) m∠MKQ + m∠PKQ = m∠PKM
5) line PK is an angle bisector
1) This statement says that KQ is an angle bisector. This is false because the line KQ does not pass through the diagonal vertex of the right angled symbol at point K.
2) Second statement says that ∠LKQ is bisected. This statement is false because PK is just a perpendicular line to JKM that divides it into 2 equal parts and not a bisector of ∠LKQ
3) The third statement states that m∠JKL = 45°. This statement is true because from the image it is clear that the line KL divides m∠PKJ into two equal parts.
4) Fourth statement says that m∠MKQ + m∠PKQ = m∠PKM. This statement is true. Now, although KQ doesn't bisect m∠PKM into 2 equal parts, nevertheless it divides it into 2 angles namely m∠MKQ and m∠PKQ. This means the sum of m∠MKQ + m∠PKQ must yield m∠PKM.
5) The fifth statement says that the line PK is an angle bisector. This statement is true because JKM is a straight angle. Thus as PK is perpendicular to it, it has bisected it into two equal parts.
6) The fifth statement says that ∠JKL ≅ ∠QKM. This statement is false because ∠JKL is a bisected angle which is 45° whereas, ∠QKM is not a bisected angle and thus not equal to 45°.
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Your answer is
Dante will run at least 33 miles this week. So far, he has run 15 miles. What are the possible numbers of additional miles he will run?
Use t for the number of additional miles he will run.
Write your answer as an inequality solved for t.
The number of possible additional miles that he needs to run will be 18.
What is inequality?Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.
Dante will run at least 33 miles this week. So far, he has run 15 miles.
Then the number of possible additional miles that he needs to run.
Let t be the number of additional miles he will run. Then the inequality is given as,
15 + y ≤ 33
y ≤ 33 - 15
y ≤ 18
The number of possible additional miles that he needs to run will be 18.
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What are the terms in the expression 5y -x + 7? A. Sy, -X B. 3,-1,7 C. 5y, -x, 7 D. Sy, x, 7
The two factors means that the two value will equate with zero
A) 2x-6
They can be aslo simplified as :
2x-6=0
2x=6
x=3
Thus they gave only one values and cannot be expressed as the factors of two product
B) 2x+6
In this expression
we can simplify as :
2x+6
2x+6=0
2x=-6
x=-3
Thus , they are also not expressed as the factors of the two product
C) 2(x+6)
In this expression
we can simplify as :
2x+12
2x+12=0
2x=-12
x=-6
Thus , they are also not expressed as the factors of the two product
D) (2+x)÷(6+x)
They can express as fraction
[tex]\begin{gathered} (2+x)\div(6+x)=\frac{(2+x)}{(6+x)} \\ (2+x)\div(6+x)=(2+x)(6+x)^{-1} \end{gathered}[/tex]Thus, They express as the product of the tewo factors
Answer : D) (2+x)÷(6+x)
Which ones are paralel? Justify your answer please!!!!!!!!
Answer: I think that FG and MB are parellel, but I think the way to confirm is to measure with a ruler
Step-by-step explanation:
The fuel tank of a certain airplane can hold up to 200 gallons of fuel. Let W be the total weight of the airplane (in pounds). Let F be the total amount of fuel in
Its tank (in gallons). Suppose that W=5F+4000 gives W as a function of F.
Identify the correct description of the values in both the domain and range of the function. Then, for each, choose the most appropriate set of values.
Set of Values
(Choose one)
Domain:
Range:
Description of Values
Oweight of airplane (in pounds)
Oamount of fuel in airplane's tank (in gallons)
Oweight of airplane (in pounds)
amount of fuel in airplane's tank (in gallons)
(Choose one)
X
28
180
The correct description of domain and range for the weight of aeroplane are-
Domain - [0 , 200]Range - [4,000 , 5,200]What is meant by the term domain and range?The domain of the a function is the value set that can be plugged into it. This set contains the x values together in function like f. (x). A function's range is the number of values that even the function can take. This is the set of values which the function returns after we enter an x value.For the given question, the values are-
Function W = 5F + 4000
Full amount of fuel = 200 gallons
No amount of fuel = 0 gallons
Domain : amount of fuel = [0 , 200]
Now, calculate for the range.
If F = 0
W = 5F + 4,000
W = 5(0) + 4,000
W = 4,000
If F = 200
W = 6F + 4,000
W = 6(200) + 4,000
W = 5,200
Range of weight = [4,000 , 5,200]
Thus, the value of range for the total weight of the aeroplane is [4,000 , 5,200].
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Luana states that -x+2--10 is true when
x=12. Is she correct? Jutify your response.
Answer:
Luana is correct
Step-by-step explanation:
Hello!
According to the question, we are supposed to check whether Luana is right
Oops you made a typo
It's supposed to be -x+2 = --10 not -x+2--10
-x+2 = --10
Add values
When, x = 12
-(+12) + 2 = -10
-12 + 2 = -10
Calculate
-10 = -10
She is correct
When solving
−x+2=−10
Step 1: Subtract 2 from both sides.
−x+2−2=−10−2
−x=−12
Step 2: Divide both sides by -1.
−x/−1 = −12/−1
x=12
So, she's correct
Identify the constant term in the following polynomial
8x + 2x^3 - 5x^4 - 9
-9
Step-by-step explanation:Constants are terms that are only numbers, without any variables.
Terms
First, let's define what a term is. Within a polynomial, a term is an expression that is added to other terms to create a polynomial. It is important to note that terms are always added. So, if there is subtraction, that means one of the terms is negative.
Constants
The easiest way to identify constants is to look for terms without variables. In the polynomial above, the only constant is -9. All of the other terms have x to some power as a factor. Since they have variables, they cannot be a constant.
Numbers cannot be changed; this is why there are called constants. No matter the x-value, -9 will not change.
Help please it's true or false
Answer:true
Step-by-step explanation:
because the first one
A cuboid is of dimensions 60 cm × 54 cm × 30 cm. How many small cubes with side 12 cm can be placed in the given cuboid?
Answer:
56.25
Step-by-step explanation:
We know that, Volume of the cuboid = l × b × h
= 60 cm × 54 cm × 30 cm
= 97200 cm³
Side of the cube = 12 cm
The volume of the cube = side³
= 12³
= 1728 cm³
Required number of cubes = volume of cuboid/volume of the cube
= 97200 / 1728
= 56.25
Thus, 56.25 cubes can be placed in the given cuboid.
Linear equation where m=-4 and passes through (5,9)
The linear equation where m = -4 and passes through (5,9) is y = - 4x + 29
What is Linear Equation ?Linear Equation = an equation between two variables that gives a straight line when plotted on a graph is known as linear equation.
For this statement we need to use the point slope form of linear equation.
What is Point Slope Form ?The equation of a straight line in the form y − y1 = m(x − x1) where m is the slope of the line and (x1, y1) are the coordinates of a given point on the line — compare slope-intercept form is known as point slope form.
Using point slope form,
y - y1 = m (x - x1)
y - 9 = -4 (x - 5)
y - 9 = -4x + 20
y = -4x + 20 + 9
y = -4x + 29
Therefore, where m = -4 and passes through (5,9) the linear equation will be y = -4x + 29
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