The result of the expression [tex]-k^{2}-(3k+5n)+4n[/tex] for the variable k= -1 and n= -2 is -16
Given,
The expression =[tex]-k^{2}-(3k-5n)+4n[/tex]
We know
k= -1
n= -2
Substitute the values in the expression
[tex]-(-1)^{2}-(3(-1)-5(-2))+4(-2)[/tex]= -1-(-3+10)-8
=-1-(7)-8
=-1-7-8
=-16
Hence, The result of the expression [tex]-k^{2}-(3k+5n)+4n[/tex] for the variable k= -1 and n= -2 is -16
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Refer to ®N . Identify each.
b. a diameter
The diameter is the length of the line passing through the center and touching two points on the circle's edge.
What is the diameter?In geometry, a circle's diameter is any straight line segment that passes through the center of the circle and has endpoints on the circle. It is also referred to as the circle's longest chord. Both definitions apply to a sphere's diameter.
The diameter is defined as the length of a line passing through the center and touching two points on the circle's rim.
A circle's diameter extends from one side to the other, with its midpoint in the center. Divide the radius of the circle by two to get the diameter.
A circle's diameter divides the shape in half. The radius of a circle is half the length of its diameter (or, conversely, the diameter of a circle is twice the length of its radius).
The complete question is:
Identify each
b. a diameter
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(k^2-5k-2)(k^2+2) polynomial in standard form
Answer:
[tex]K^{4} -5k^{3} -10k-4[/tex]
Step-by-step explanation:
State the property that justifies each statement.
If x=5 and b=5 , then x=b .
Each assertion is backed up by property. This same transitive property of equality supports this.
What exactly is the transitive property?If x, y, and z are really the three quantities, as well as x is connected with y by some rule, and y is connected to z by the same rule, we can say x is connected to z using the same rule.
According to the given data:x=5
b=5
x=b.
That transitive property that equality justifies this.
because :
Transitive Property of Equality show If a = b and b = c, then a = c.
so in the given statement the x=5 and b=5 so x=b.
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i don’t know how to do this
if 45 cookies will serve 15 students how many cookies are needed for 30 students
Answer: 30
Step-by-step explanation:
this is so easy
Answer:
1for 30 students i would need 90
Translate each sentence into an equation.
1. The sum of three times a and four is the same as five times a.
2. One fourth of m minus six is equal to two times the sum of m and 9.
3. The product of five and w is the same as w to the third power.
Translate each sentence into an equation. which are as follows the value of a is 2, the value of m is 13.71 and the value of w is the root of 5.
1. The sum of three times a and four is the same as five times a.
3a+4 = 5a
3a = 5a -4
4 = 5a-3a
4= 2a
2 =a
2. One-fourth of m minus six is equal to two times the sum of m and 9.
1/4m - 6 = 2 (m+9)
1/4m = 2m +18+6
1/4m = 2m + 24
2m -1/4 m = -24
7/4 m = -24
m = -24*4/7 = 13.71
The value of m is 13.71
3. The product of five and w is the same as w to the third power.
5*w = w.w.w
5 = w.w.w/w
5 = w.w
root of 5 = w
The value of w is the root of 5
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OFFERING 30 POINTS AND BRANLIEST IF YOU GET IT RIGHT!!
Sarah ordered 38 shirts that cost $7 each. She can sell each shirt for $16. She sold 31 shirts to customers. She had to return 7 shirts and pay a $2 charge for each returned shirt. Find Sarah's profit.
I didn't get this, please help me out.
Answer:
Profit = $216
Step-by-step explanation:
To solve this, let's first calculate the amount she spent buying 38 shirts at $7 each:
• total spent = 38 × 7
= $266
We are told that she then sold 31 shirts at $16 each. Using this information, let us now calculate the total amount she earnt selling these shirts:
• total earnt = 31 × 16
= $496
Next, she returned 7 shirts and paid a $2 charge for each returned shirt. Therefore, the amount she spent on returning was:
• total spent returning = 7 × 2
= $14
Therefore she earned a total of $496 and spent $266 and then $14. We can calculate her profit by subtracting the two expenditures from the earnings:
• Profit = $496 - $266 - $14
= $216
Hence her profit was $216.
Given two terms of each arithmetic sequence, find a₁ and d . a₁₀ = 17 and a₁₄=34
The two terms of each arithmetic sequence [tex]a_{10}[/tex] = 17 ,[tex]a_{14}[/tex] =34 are d = 17/4 and a = -21.25.
What is sequence?[tex]a_{10}[/tex] = 17
17 = a +9d.............1
[tex]a_{14}[/tex] =34
34 = a + 13d...........2
equating equation 1 and 2
17 = a +9d
34 = a + 13d
d = 17/4
d = 4.25 ..............3
from equation 3
a = -21.25
An ordered group of numbers with a shared difference between each succeeding word is known as an arithmetic sequence. For instance, the common difference in the arithmetic series 3, 9, 15, 21, and 27 is 6.
Arithmetic sequences are sequences containing these patterns. The distance between succeeding terms in an arithmetic series is always the same. The difference between consecutive words is always two, hence the sequence 3, 5, 7, 9... is arithmetic.
An explicit formula that states a = d (n - 1) + c, where d is the common difference between succeeding words, and c = a1, can be used to establish an arithmetic sequence.
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The perimeter of a square is 4 times as
great as the length of any of its sides.
Determine if the perimeter of a square is proportional to its side length. Explain.
Answer:
Perimeter of a square is proportional to side length
Step-by-step explanation:
We have the relation p = 4a, p = perimeter, a = side length
This is the equation for a proportionate relationship of the form y = k.x where y ∝ x , y directly proportional to x => y varies as x varies and always by the same constant
k is known as constant of proportionality
Here k = 4
Let's say the side of square is 1. Then perimeter = 4
If side is increased to 2, then perimeter = 4 x 2 = 8
If side is increased to 3, then perimeter is 4 x 3 = 12
So perimeter increases by a factor of 4 for every unit increase in side length
Which ordered pairs are solutions to the inequality y−3x<10?
(0,-4) , (0,-1) , (4,-1) are the ordered pairs are solutions to the inequality
y − 3x < 10 which is option (A) , (D) and (E) .
An inequality compares two values and indicates whether one is less than, greater than, or equal to another. a ≠ b indicates that a is not equal to b a < b indicates that a is less than b a > b indicates that a is greater than b (These two are known as strict inequalities) a ≤ b means that a is less than or equal to b a ≥ b means that a is greater than or equal to b.
We have to check whether the given options are the solutions to the inequality y− 3x < 10 . ...(1)
(A) If (0,-4) is the solution of given inequality y− 3x < 10 then it must satisfy the equation .
Putting x = 0 and y = -4 in equation (1) , we get
[tex]-4-3(0) < 10\\-4 < 10[/tex]
As the above condition is true so (0,-4) is the solution of given inequality
(B) If (-6,0) is the solution of given inequality y− 3x < 10 then it must satisfy the equation .
Putting x = -6 and y = 0 in equation (1) , we get
[tex]0-3(-6) < 10\\18 < 10[/tex]
As the above condition is not true so (-6,0) is not the solution of given inequality .
(C) If (-1,7) is the solution of given inequality y− 3x < 10 then it must satisfy the equation .
Putting x = -1 and y = 7 in equation (1) , we get
[tex]7-3(-1) < 10\\7+3 < 10\\10 < 10[/tex]
As the above condition is not true so (-1,7) is the not the solution of given inequality .
(D) If (0,-1) is the solution of given inequality y− 3x < 10 then it must satisfy the equation .
Putting x = 0 and y = -1 in equation (1) , we get
[tex]-1-3(0) < 10\\-1 < 10[/tex]
As the above condition is true so (0,-1) is the solution of given inequality.
(E) If (4,-1) is the solution of given inequality y− 3x < 10 then it must satisfy the equation .
Putting x = 4 and y = -1 in equation (1) , we get
[tex]-1-3(4) < 10\\-1-12 < 10\\-13 < 10[/tex]
As the above condition is true so (4,-1) is the solution of given inequality.
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What is the probability that a five card poker hand contains a flush that is five cards of the same suit?
The likelihood that a five-card poker hand will contain a flush (five cards of the same suit). = 0.001981
What is the significance of probability in everyday life?Probability is extremely important in everyday life. Weather forecasting, sports as well as gaming strategies, purchase or sale of insurance, online shopping and online games, blood group determination, and political strategy analysis
According to the given data:A standard deck of cards contain 52 cards. A five - card poker hand select 5 of the 52 cards.
C(52 , 5) = [tex]\frac{52 !}{5 !(52-5) !}[/tex]
= 52!/(5!47!)
= 2,598,960
Number of hand contenting a flush:
we need to select 1 of the 4 suits and then select 5 of the 13 cards from this suit.
C(4 , 1) = [tex]\frac{4 !}{1 !(4-1) !}[/tex]
= 4!/(1!3!)
= 4
C(13 , 5) = [tex]\frac{13 !}{5 !(13-5) !}[/tex]
= 13!/(5!8!)
= 1287
Using the product rule:
4*1287 = 5148
Probability:
5148 of the 2,598,960 hands will contain a flush.
The probability is calculated by dividing the number number favorable outcomes by the total number of possible possibilities.
P = 5148/ 2,598,960
= 33/16660
the likelihood that a five-card poker hand will contain a flush (five cards of the same suit). = 0.001981
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Which of the following situations could be represented by a graph with a y-intercept of -8?
A. Hal bought $8 worth of supplies, then sold x buttons for $3 each. His profit is y dollars.
B. Mr. May has 3 sticks left, and each student needs 8 sticks to make their craft project. There are x students, and they need y sticks in all.
C. Kim ran 3 laps clockwise and 8 laps counterclockwise, for a total of 5 miles of the track. The track is x miles long and she ran a total of y laps.
D. Jian bought 8 packs of paper and sold 3 origami swans. His current profit is -$5. A pack of paper costs x dollars and he sells the swans for y dollars.
The situation given that can be represented by a graph with a y-intercept of -8 is A. Hal bought $8 worth of supplies, then sold x buttons for $3 each. His profit is y dollars.
How to use the y-intercept?The y-intercept is a figure in the linear equation that shows the original number of units before the value of x either started to increase or to decrease and therefore cause a change in x.
The situation where Hal bought $8 worth of supplies would be represented by the y-intercept of -8 because the $8 that Hal bought represents his total profit before he sells anything. That total profit is -8 because Hal has spent -$8 but has not sold anything.
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If 3% of a number equals 2, find 9% of that number.
Answer:
6
Step-by-step explanation:
2/.03 = 66.66...7 times .09 = 6
The number is 66.67. And the 9% of the number 66.67 will be 6.
What is the percentage?The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates to one hundred percent. It is symbolized by the character '%'.
The percentage is given as,
Percentage (P) = [Final value - Initial value] / Initial value x 100
Let the number be 'x'. Then the equation is given as,
3% of x = 2
0.03 x = 2
x = 2 / 0.03
x = 66.67
Then the 9% of that number is calculated as,
⇒ 9% of 66.67
⇒ 0.09 x 66.67
⇒ 6
The number is 66.67. And the 9% of the number 66.67 will be 6.
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-1.4 + (-1.2) thanks
Answer:
-2.6
Step-by-step explanation:
Shaquana has a points card for a movie theater.
She receives 40 rewards points just for signing up.
• She earns 13.5 points for each visit to the movie theater.
• She needs 175 points for a free movie ticket.
How many visits must Shaquana make to earn a free movie ticket?
1-8. For each equation below, find y if x = 2. y=7- |x| a. b. y=x²-1 C. y = √√x+14
The values of the function for x = 2.
for y = 7- |x| ; y = 5for y = x²-1 ; y = 3for y = √x+14; = 4What is defined as the linear equation in two variables?A linear equation in two variables is one that is written in the form ax + by + c=0, where a, b, and c are real numbers as well as the coefficients of x and y, i.e. a and b, are not equal to zero. A solution this, is a specific point on the graph where when the x-coordinate is multiplied by a and the y-coordinate is multiplied by b, the sum of these two values equals c.Part a: y = 7- |x|
The modulus function returns the magnitude and absolute value of a number, regardless of whether it is positive or negative. The modulus function is represented by y = |x| or f(x) = |x|, where f: R ---> R and x ∈ R.
Put x = 2 in the function;
y = 7- |2|
y = 7 - 2
y = 5
Part b: y = x²-1
put x = 2
y = 2²-1
y = 3
Part c: y = √x+14
Put x = 2
y = √2+14
y = √16
Squaring both side;
y = 4
Thus, the values for the function are obtained.
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5/9 (d - 12) = 10 A linear equation is shown above. Which of the following values of d is a solution to the equation?
For the given equation, the value of d = 30
How to solve an equation?To solve linear equations, utilize the steps that are provided below. Remove parenthesis from either side of the equation and combine similar phrases to make it simpler. To separate the variable term on one side of the equation, use addition or subtraction. To find the variable, use division or multiplication.
Divide both sides of the equation by the coefficient of variable: d-12 = 10÷ 5/9
Divide a fraction by multiplying its reciprocal: d 9 -12=10 x 9/5
Write as a single fraction: d-12 = (10 x 9) / 5
Calculate the product or quotient: d-12= 90 / 5
Reduce fraction to the lowest term by canceling the greatest common factor: d-12 = 18
Rearrange unknown terms to the left side of the equation: d=18+12
Calculate the sum or difference: d=30
Answer: d=30
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Are these ratios equivalent?
7¢ per 3 pages
14¢ per 6 pages
Answer:
Hello!
Yes, these ratios are equivalent!
Step-by-step explanation:
Since, when we multiply both the numerator and denominator by the same number then we get an equivalent fraction.
We use multiplication or division. Whatever you do to one number of the ratio. You have to do the same thing to the other using multiplication or division. And you get an equivalent ratio.
Hope this helps!
(-8) x (-2/3) =
hellpp !
Answer:
(- 8) × (- 2/3) = 16/3 = 5 1/3
Hope this helps :)
Find the sum.
2
3
+
1
5
Answer:
23+15 or 2/3+1/5
Step-by-step explanation:
23+15=48
2/3+1/5= 13/15
Add all numerators above the least common denominator then add the numbers
A not allowed
The students in a class were asked whether they preferred basketball,
netball or floorball. The ratio of students who preferred basketball to netball
to floorball was 10:9: 6. What percentage of students preferred netball?
Watch video
Answer>
Based on the given conditions, formulate: 9÷(6+10+9)
Calculate the sum or difference: 9/16+9
Calculate the sum or difference:9/25
Multiply a number to both the numerator and the denominator:9 x 4/25 x 4
Calculate the product or quotient: 36/100
Rewrite a fraction with denominator equals 100 to a percentage is 36%
therefore the percentage of the students preferred netball is 36%.
In mathematics, a percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word per cent means per 100.One percent is one hundredth of a whole. It can therefore be written as both a decimal and a fraction. To write a percentage as a decimal, simply divide it by 100. For example, 50% becomes 0.5, 20% becomes 0.2, 1% becomes 0.01 and so on.Percentages are used widely and in many different areas. For example, discounts in shops, bank interest rates, rates of inflation and many statistics in the media are expressed as percentages. Percentages are important for understanding the financial aspects of everyday life.to know more about percentage ;
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i’m doing my geometry homework with the equation 1/2h(b1+b2) but i can’t figure this one out. please help
Answer:
Step-by-step explanation:
to find the bottom base you add the two numbers that make it
5+18=23
now put everything in the formula
[tex]\frac{1}{2}*12(12+23)\\[/tex]
parathesis first
12+23=35
[tex]\frac{1}{2} *12*35[/tex]
multiply in order
6*35
210
Step-by-step explanation:
i’m doing my geometry homework with the equation 1/2h(b1+b2) but i can’t figure this one out. please help
1/2h (b1 + b2) is the formula for finding the area of the figure (trapezoid)
1/2 * 12 (18 + 5 + 12)=
6 * 35=
210 units²
TENNIS A double fault in tennis is when the serving player fails to land their serve "in" without stepping on or over the service line in two chances. Kelly's first serve percentage is 40%, while her second serve percentage is 70%.
a. Draw a probability tree that shows each outcome.
The probability tree for each outcome is drawn.
Probability for 1st successful serve is 0.4.Probability for 2nd successful serve is 0.42.Probability for no successful serve is 0.18.What is termed as probability?Probability is a mathematical concept concerned with determining the likelihood of occurrence of a given event, which is demonstrated as a range of 1 and 0. A certainty is an event with such a probability of one.
Now, as per the given question;
Kelly's first serve percentage is 40% = 0.4.
Kelly's second serve percentage is 70% which comprises of successful and faulty serve.
The probability that the second serve will be successful is;
= 0.6×0.7
= 0.42
Thus, probability that the second serve will be successful is 0.42.
Now, the probability the second serve will be unsuccessful is;
= 0.6×0.3
= 0.18
Thus, probability that the second serve will be unsuccessful is 0.18.
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What is the conclusion of the given conditional
statement.
If it is a Thanksgiving, then we are not in
school.
Answer:
we are not in school
Step-by-step explanation:
Conditional: If it is a Thanksgiving, then we are not in school.
Hypothesis: If it is a Thanksgiving, then we are not in school.
Conclusion: If it is a Thanksgiving, then we are not in school.
Answer: we are not in school
In this problem, you will investigate the relationships among three points of concurrency in a triangle.
a. Draw an acute triangle and find the circumcenter, centroid, and orthocenter.
Construct an acute triangle and find the centroid (medians), circumcenter (perpendicular bisectors), and orthocenter (altitudes). Take note of how these three centers interact with one another from the figure.
What are acute triangles?
An acute angle triangle (also known as an acute-angled triangle) is a triangle with all of its interior angles being acute angles. Remember that an acute angle is one that is less than 90°.
A triangle with three acute angles is known as an acute triangle. An obtuse triangle has one obtuse angle and two acute angles. Because the angles of a triangle in Euclidean geometry must sum to 180°, no Euclidean triangle can have more than one obtuse angle.
Construct an acute triangle and find the centroid (medians), circumcenter (perpendicular bisectors), and orthocenter (altitudes). Take note of how these three centers interact with one another from the figure.
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How do I find angle x?
The value of x is 280
How to determine the angleFrom the information given, we have that;
Angle at the circumference = xAngle at the center = 140It is important to note that, the angle subtended by an arc at the center is twice the angle subtended at the circumference.
Example;
If AOB is the angle at the circumference and ACB is the angle at the center
Then, we have that;
Angle AOB = 2 × Angle ACB
2(140) = x
expand the bracket
x = 280
Thus, the value of x is 280
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−
7
4
p+(−
7
2
p)+
7
1
1
Answer: god please help the world
Step-by-step explanation: we are struggling
Answer: -6/7p+1/7
Step-by-step explanation: thank god I'm smart lol... I'm a big brain!!!
| Identify the prime statements in the below compound statement
9 is odd and 9 is divisible by 3
A composite number is one that is greater than one and contains more than 2 factors.
For example, the number four can always be factorized in a variety of ways. As a result, the factors of 4 have been 1, 2, and 4. It contains more than two elements. As a result, 4 is a composite number.For the given statement;
9 is divisible by 3 can be written as;
9/3 = 3 ; as 3 is the prime number, the statement is regarded as prime statement.
For, 9 is odd.
As, 9 is not a prime but a composite number, the statement is considered as the compound statement.
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GEOMETRY HONORS
Answer Options:
Valid: Law of Syllogism
Valid: Law of Detachment
No Valid Conclusion
please answer asap, thank you all so much
Answer:
17. Invalid
Step-by-step explanation:
It is invalid because not only the angles matter but also the measurement of the sides, if one side is bigger than the other, it cannot be a square.
If DM = 26 and point G lies on the perpendicular bisector of DM¯¯¯¯¯¯¯, what is the value of r? Segment D M with point G between the endpoints. Segment D G has length R plus 3, and segment G M has length 4R minus 28. A. 10 B. 13 C. 30 D. 52
Applying the segment addition postulate, the value of r is determined as: A. 10.
What is the Perpendicular Bisector?A perpendicular bisector is a line segment which divides another line segment into two equal parts, that is, the segments formed have equal lengths.
Since point G lies on the perpendicular bisector of segment DM, therefore:
DG = GM
Given the following:
DM = 25
GM = 4r - 28
DG = r + 3
Therefore:
DG + GM = DM [segment addition postulate]
Substitute
r + 3 + 4r - 28 = 25
Combine like terms
5r - 25 = 25
5r = 25 + 25
5r = 50
5r/5 = 50/5
r = 10
Thus, applying the segment addition postulate, the value of r is determined as: A. 10.
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