Answer:
false 1/10 false 80 13/1
Deliver the equation of the parabola with a focus at (2, -1) and a directrix of y= 1/2
Answer: It will be letter c
Step-by-step explanation:
John flipped a coin 50 times .It landed on tails 35 times .what is the ratio of the number of times the coins landed on heads to the number of flips.
Answer:
15:50
Step-by-step explanation: Out of the 50 times the coin was flipped, it landed on tails 35 times. This means it landed on heads 15 times (50-35=15). The ratio of heads to the total number of flips would be 15:50.
U2 L2 solutions of a graphed equationWhich point is not a solution to the equation 4y = 167A (4, 2)C. (2, 3)D. (5, 1.5)Question 1
(4,-2) does not lie on the line
Here, we want to select the point that is not a solution to the graphed line
What we have to do is just to susbtitute the value of x and y. If by aritjmetic operation, the result is 16, then the point lies on the line
We proceed as follows;
a) (4,-2)
-2(4) -4(-2)
-8+8 = 0
This lies on the line
b) (1, -4.5)
-2(1)-4(-4.5) = -2 + 18 = 16
This is not on the line
c) (-2,-3)
-2(-2)-4(-3) = 4 + 12 = 16
d) -2(-5)-4(-1.5)
= 10 + 6 = 16
As we can see, only the first point does not lie on the line
Jon used a gift card to pay for an $17 shirt.The remaining balance on the card is $31.Write and solve an equation that representsthis.
Answer
The initial amount on Jon's giftcard is $48.
Explanation
Let the initial amount on Jon's gift card be x dollars.
Jon pays $17 for a shirt using the gift card and the remaining balance was $31.
That is, the equation representing this is
x - 17 = 31
To solve this, we add 17 to both sides
x - 17 + 17 = 31 + 17
x = 48 dollars
The initial amount on Jon's giftcard is $48.
Hope this Helps!!!
Good evening,
Answer: x-17=31 is the equation you're looking for meanwhile its result is x=48
Explanations: Jon spent $18 after having $31 on the card so they're spending money off the card, therefore the equation you're loooking for is x-17=31. In order to solve it add 17 to the other side of the equation such as:
x-17=31 ; x=31+17 ; x=48
Zad 26 str55 kl 8matematyka proszę jak najszybciej
the ages of students at a university are normally distributed with a mean of 23. what percentage of the student body is at most 23 years old?
By the concept of mean ,50% of the student body is at most 23 years old.
What is mean?In mathematics, particularly in statistics, there are various kinds of means. Each mean is used to summarize a certain set of data, frequently to help determine the overall significance of a particular data set. Two easy steps can be used to determine the mean, or average, of a set of data: Add up all of the values to get the sum. Divide the total by the total number of values in the data collection. A data set's mean (average) is determined by summing all of the numbers in the set, then dividing by the total number of values in the set. When a data collection is ranked from least to greatest, the median is the midpoint number. The number that appears most frequently in a set of data is called the mode.
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Geometry-
given:
line BD is perpendicular to line AC
D is the midpoint of line AC
Prove: Triangle ABD is congruent to triangle CBD
Triangle ABD is congruent to triangle CBD
Congruent triangles: What are they?
Congruent triangles are triangles that are precisely the same size and shape. The word congruent has the sign. When the three sides and three angles of one triangle match the same dimensions as the three sides and three angles of another triangle, two triangles are said to be congruent.
Given, BD perpendicular AC
Angle ADB = Angle CDB = 90
Therefore, angle ABD = angle CDB = 90
AB = CB
BD = BD
Hence, Triangle ABD is congruent triangle CBD
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Given:
BD bisects
BD bisects
Prove: triangle DAB is congruent to triangle DCB
By SAS rule, triangle DAB is congruent to triangle DCB
Define congruency.If two shapes are similar in size and shape, they are congruent. We can also state that if two shapes are congruent, then their mirror images are identical. If and only if two angles have equal measurements, they are said to be congruent. If and only if two segments have equal amounts of each, they are congruent. If and only if all of the corresponding angles and sides are congruent, two triangles are said to be congruent.
Given data
BD bisects ∠ABC
BD bisects ∠ADC
In ,Triangle DAB and triangle DCB
DA = DC (Given)
∠DAB=∠DCB (BD bisects ∠ABC)
DB = DB (Common Value)
Thus,
△DAB≅△DCB (SAS rule)
By SAS rule, triangle DAB is congruent to triangle DCB
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The Ramirez family just bought crates of eggs, and each crate had eggs. The family already had eggs in their refrigerator. How many eggs do they have now?
Answer:
The Ramirez family has 36 eggs
is it possible to have a series of true conditional statements that lead to a false conclusion? explain.
Answer:
Step-by-step explanation:
I think not because if a series of true conditional statements then it won't lead to a false conclusion
Three friends ate lunch at a restaurant and divided the bill equally. They used the expression below to determine how much each person owed.
(1.75+5.95)+(2.25+4.75)+(1.09+7.95) /
3
please help mee
Each friend pay the bill 7.9133(approx.)
Given,
The expression is given :
(1.75+5.95)+(2.25+4.75)+(1.09+7.95) / 3
Three friends ate lunch at a restaurant and divided the bill equally.
Now, According to the question:
The expression is :
(1.75+5.95)+(2.25+4.75)+(1.09+7.95) / 3
Calculate the sum or difference
=(7.7 + 7 + 9.04 )/ 3
=23.74 / 3
= 7.9133 (approx.)
Hence, Each friend pay the bill 7.9133(approx.)
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Without solving for x, how can you show that x=2 is a solution to 2x+3=3x+1?
We minus 3 on both sides, we get :
2x = 3x - 2
We have the equation : 3x - x = 2x, or 2x = 3x - x, and this holds true.
Since x corresponds to 2 in the first equation, x = 2 is a solution
Write the point-slope form of the equation of the line given the two points.
(-1,4) and (-4,2)
HELP PLEASEEEEE
What is 2+2
3
4
9
6
Answer: um 4
Step-by-step explanation: use your fingers lol
Help with please question
The most appropriate choice for parallelogram will be given by
[tex]\Delta ABD \cong \Delta CDB[/tex] has been proved
What is a parallelogram?
Parallelogram is a quadrilateral in which each pair of opposite sides are parallel and equal.
There are different properties of parallelogram-
Opposite sides of a parallelogram are equal
Opposite angles of a parallelogram are equal
Diagonals of a parallelogram bisect each other
Here,
AD || BC [Definition of Parallelogram]
[tex]\angle ADB \cong \angle CBD[/tex] [Alternate interior angle theorem]
AB || CD [Definition of Parallelogram]
[tex]\angle ABD \cong \angle CDB[/tex] [Alternate interior angle theorem]
[tex]DB \cong DB[/tex] [DB is the common side]
[tex]\Delta ABD \cong \Delta CDB[/tex] [ASA axiom]
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shannon wants to start saving for her retierment her goal is to save 350000 if she depends 250000 into an account that pays 2.04% interest compounded monthly approximately how long will it take for her money to grow to her desired amount round your answer to the nearest tenth of a year
Shannon will take time 16.5 years to have $350000
What is Compound Interest ?
Compound interest, also known as interest on principal and interest, is the practice of adding interest to the principal amount of a loan or deposit. Reinvesting interest, or adding it to the lent capital rather than paying it out or seeking repayment from the borrower, results in interest being received on the principal amount plus previously collected interest in the next period.
Formula used,
A=P(1+r/n)^nt
A = ending amount
P = principal amount(beginning amount)
n = time period
r = rate of interest
Given,
A = $350000
p = $250000
r = 2.04% or 0.0204
n = 12 months
Now, put these values in given formula
350000 = 250000(1 + 0.0204/12)^12t
= 250000 * 1.0017^12t
350000/250000 = 1.0017^12t
1.4 = 1.0017^12t
Take log on both the sides,
㏑(1.0017^12t) = ㏑(1.4)
12t * ㏑(1.0017) = ㏑(1.4)
12t * 0.0017 = 0.3365
t = 0.3365 / 0.0204
t = 16.5 years
Therefore, Shannon will take time 16.5 years to have $350000
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Help me!
It is due tonight!
9 is a coefficient of u in mathematical expression.
What does a math expression mean?
A mathematical expression is a phrase that has a minimum of two numbers or variables and at least one mathematical operation. Any one of the following mathematical operations can be used.What does an example of a math expression mean?
Mathematical expressions are sentences having a minimum of two numbers or variables, at least one arithmetic operation, and a mathematical concept. Let's examine the writing of expressions. The other number is x, and a number is 6 greater than half of it. In a mathematical expression, the sentence is represented as x/2 + 6.= 7 ( 9u + 2 ) ( 1 + 3 )
In this expression statement 1 is correct and statement 2,3,4,5,6 are false.
9u, 9 is a coefficient of u.
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1.8(b-5.3)-4.2=5.8(b-2.3) help me please
The solution to the equation given as 1.8(b-5.3)-4.2=5.8(b-2.3) is b = -0.1
How to determine the solution to the equationFrom the question, the equation is given as
1.8(b-5.3)-4.2=5.8(b-2.3)
Rewrite the equation properly
This is represented as follows
1.8(b - 5.3) - 4.2 = 5.8(b - 2.3)
Open the brackets in the above equation
So, we have
1.8b - 9.54 - 4.2 = 5.8b - 13.34
Collect the like terms in the equation
So, we have
1.8b - 5.8b = 9.54 + 4.2 - 13.34
Evaluate the like terms in the equation
So, we have
-4b = 0.4
Divide by -4
b = -0.1
Hence, the solution is b = -0.1
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The solution to the equation 1.8(b-5.3)-4.2=5.8(b-2.3) will be; b = -0.1
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
We have been given an equation as;
1.8(b-5.3)-4.2=5.8(b-2.3)
Rewrite the equation properly as follows;
1.8(b - 5.3) - 4.2 = 5.8(b - 2.3)
Open the brackets in the equation, we have
1.8b - 9.54 - 4.2 = 5.8b - 13.34
Now Collect the like terms in the equation
1.8b - 5.8b = 9.54 + 4.2 - 13.34
Evaluate the like terms in the equation;
-4b = 0.4
Now Divide by -4
b = -0.1
Hence, the solution is; b = -0.1
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How many solutions can be found for the equation 4x = 4x?
a Zero
b One
c Two
d Infinitely many
Answer:
I think its infinitely many because:
4x=4x
x=4x\4
x=x
Kaleb had 65 songs on his mp3 player if he deleted 20 songs what is the ratio of songs he kept to songs he deleted
Answer:
Step-by-step explanation:
1.First find the left songs after delete:
65-20= 45 kept
2.Now find deleted: 20 deleted
3.Ratio to kept to deleted= 45:20
4.Simplify: 9:4
16=16r
WILL MARK BRAINILEST!!
Assuming you're trying to find the value of r...
Answer:
r = 1
Step-by-step explanation:
Take your starting equation:
16 = 16r
Since r is multiplied by 16, divide both sides by 16 to isolate r.
16 / 16 = 1
16r / 16 = r
The result is 1 = r, which can be written as:
r = 1
Can The intersection of two planes can be a line.
The intersection of two planes can be a line. Therefore, it's true.
What is a plane?A plane is a flat, two-dimensional surface that never ends in mathematics. A plane is a point, a line, and three-dimensional space's equivalent in two dimensions.
A line is formed by the intersection of two planes. The planes are parallel if they do not intersect. Due to the endless nature of planes, they cannot meet at a single place. In addition, because planes are flat, they cannot intersect over more than one line.
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the sum of an integer and five times the next consecutive odd integer is -32. Find the value of the lesser integer
The value of the lesser integer is a = -7
How to find the value of the lesser integer?
Let an integer be = a
Let the next consecutive odd integer (b) = a+2
a + 5( b) = -32
a +5(a+2)= -32
a+ 5a +10 = - 32
6a = -32 -10
6a = -42
a = - 42 /6
a = - 7
The integer a = -7
The next consecutive odd integer (b) = a+2
= -7 + 2
b = -5
So, the value of the lesser integer is a = -7
What is an integer?
The integers are the smallest group and ring of natural numbers. In algebraic number theory, the integers are occasionally designated as rational integers to distinguish them from the algebraic integers, which are more broadly defined. Zero, a positive natural number, or an unsigned negative integer are all examples of integers. The corresponding positive numbers' additive inverses are the negative numbers.To learn more about integers, refer:
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Simplify the expression and rationalize the denominator.
36a8b4
7c
Jimmy is buying balloons and party hats for his little sister’s birthday party. The party store charges $1.50 for each bag of balloons and $6.00 for each package of hats. Which of the following equations could be used to determine different combinations of b bags of balloons and h packages of party hats that he could buy for a total of $24 A.) b+h=24
B.) (1.50+6.00)(b+h)=24
C.) 1.50b+6.00h=24
D.) 6.00b+1.50h=24
Please provide how you did it so I can understand
Answer:
The answer is C.
Step-by-step explanation:
Since the party store charges $1.50 for each bag of balloons, the total price depends on how many bags of balloons Jimmy purchases. So to represent that amount we use the variable given, b. To represent that we can do 1.50b. If we substitute any positive number for b it could look something like this:
(1.50)(1) or 1.50 × 2.
In addition to this, they also sell packages for $6.00 each. We do the same as with the balloons and use the variable h to represent the number of packages Jimmy buys.
We already know that he spends $24 in total but we do not know how many of each item he bought. So we would represent the unit rate price × the variable (or the unknown number of items) of the balloons + the unit rate price and the unknown number of the party hats.
1.50b + 6.00h = 24.
Please let me know if you need additional help!
will give branlest if able to Fill in the missing number from the table using the equivalent ratios in the ratio table. (hint: 4 times what value equals 5)
Group of answer choices
12
8
5
4
Answer: The answer is 8.
Step-by-step explanation:
Please help me!!!! i'm desperate!!!!!
Abbie, Chloe, and Xander are playing a dice game. The game consists of ten rounds. In each round, each person takes a turn rolling two dice and earns or loses points based on what they role. Points are awarded according to the following table:
Roll Points
Same number on both dice +3
Different numbers, with an even sum +1
An odd sum -2
At the end of ten rounds, the person with the highest number of points wins.
In the first three rounds, Xander had the following rolls. Write an addition expression that can be used to find his point total at the end of the three rounds.
Answer:
3 + (-2) + (-2), or 3-2-2
Step-by-step explanation:
5, 5 1, 2, 6, 3
A motorcyclist drives 10 miles in the first hour and in each hour after that, drives 6 miles more than the previous hour. in what hour of driving will the motorcyclist cross the 400-mile mark? \
Answer: I think you could just take 10 and multiply it by a number then keep adding 6.
Step-by-step explanation:
suppose there is a 1.2 F drop in the temperature for every thousand feet that an airplane climbs into the sky . if the temperature on the ground is 61.7 F what will be the temperature when the plane reaches an altitude or 2,000 ft
When the plane reaches an altitude of 2,000 ft temperature will be 59.3F
What is altitude?The height of a thing above the surface of a planet or natural satellite, like the sea or land is known as altitude.A distance measurement between a reference datum and a point or object, typically in the vertical or "up" direction, is known as altitude, height, or depth.
Although the term "altitude" is frequently used to refer to a location's height above sea level, the term "elevation" is frequently preferred in the context of geography. The term "depth" often refers to vertical distance measurements taken in the "down" direction.
For every 1000 ft there is a drop of 1.2 Fahrenheit
∴ for 2000ft drop in temperature of 2×1.2=2.4F
Also the temperature on the ground is 61.7F
The temperature when the plane reaches 2,000 ft will be
61.7-2.4 = 59.3F
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18. pls help will mark brainliest
Part a: Graph 1 : A and B are 6 and 8 respectively.
Part b: Graph 2 : A and B are 8 and 12 respectively.
What is the equation of the line?The standard form of a line equation is ax + by + c = 0. The coefficients are a and b, the variables are x and y, and the constant term is c. It is a one-degree equation with variables x and y. The coordinates of a point on the line defined in the coordinate plane are represented by the values of x and y.For the given question;
The equation of line in the standard form is given as;
Ax + By = C, where C = 24
Part a: Graph 1.
Locate two points lying on the line.
(4, 0) and (0, 3)
Put the value in equation at (x, y) and solve the equation,
Ax + By = C
4A + 0B = 24
A = 24/4
A = 6
And, 0A + 3B = 24
B = 24/3
B = 8
Thus, A and B are 6 and 8 respectively.
Part b: Graph 2.
Locate two points lying on the line.
(3, 0) and (0, 2)
Put the value in equation at (x, y) and solve the equation,
Ax + By = C
3A + 0B = 24
A = 24/3
A = 8
And, 0A + 2B = 24
B = 24/2
B = 12
Thus, A and B are 8 and 12 respectively.
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