Find the difference. (k2−7k+2)−(k2−12)
Answer:
-7k + 14
Step-by-step explanation:
(k² - 7k + 2) - (k² - 12)
k² - 7k + 2 - k² + 12
k² - k² - 7k + 2 + 12
-7k + 14
A square has sides of 3x and 5x - 16. What is the value of x.
Answer:
8
Step-by-step explanation:
as side of square are equal
3x=5x-16
3x+16=5x
16=5x-3x
16=2x
16÷2=x
8=x
therefore value of x is 8
Answer:
x=8
Step-by-step explanation:
The sides on a square measure the same
so
5x-16 = 3x
2x=16
x=8
Which is the product of 15 [tex]\frac{5}{12}[/tex]
( 100 POINTS )
Answer:
[tex] \sf \: \frac{75}{12} \: (or) \: 6.25[/tex]
Step-by-step explanation:
Given problem,
[tex] \sf \rightarrow \: 15 \times \frac{5}{12} [/tex]
Let's solve the problem,
[tex] \sf \rightarrow \: 15 \times \frac{5}{12} [/tex]
[tex] \sf \rightarrow \: \frac{(15 \times 5)}{12} [/tex]
[tex] \sf \rightarrow \: \frac{75}{12} = 6.25[/tex]
Hence, the product is 6.25.
Two functions are given below. How does the graph of
a compare with the graph of b?
PLEASE HELP!!!
What is dual and complement?
The Boolean dual are created by replacing AND operator with OR operator and the complement is defined as the negation of the statement .
What is Boolean Expression ?
The Boolean Expression is defined as a logical statement that is either TRUE or FALSE . It compares data of any type as long as both the parts of expression have same basic data type.
The Dual of Boolean Expression are calculated by simply replacing AND operator with OR and OR operator with AND .
The Compliment of Boolean Expression is defined as negation of variables with replacement .
For Example : if the statement is [tex]A+B[/tex] ,
then the dual will be [tex]AB[/tex] and the compliment will be [tex]A'B'[/tex] .
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An 80% confidence interval is found to be (12, 20). What is the margin of
error?
Answer:
4
Step-by-step explanation:
A p e x
Answer:
4
Step-by-step explanation:
4
Melody has two different posters to put up in her bedroom. Poster A has an area of 450 square inches. Poster B has an area of 326 square inches. How much area of Melody's bedroom wall will the two posters cover, in square inches?
The two posters will cover 776 square inches of Melody's bedroom wall.
To find this, you add the area of the two posters together. Poster A has an area of 450 square inches, and poster B has an area of 326 square inches. By adding these two values together, we get 450 + 326 = 776 square inches. This is the total area that the two posters will cover on Melody's bedroom wall. It is important to note that this is assuming that the posters do not overlap each other and that they are placed next to each other, covering an equal area of the wall.
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What is the length of the 3rd side?
The length of the 3rd side cannot be determined without at least one more side length.
In order to calculate the length of the third side of a triangle, we must also have the lengths of the other two sides. This is because the sum of the three sides of a triangle must equal 180°, so the length of one side can be determined from the other two. For example, if two sides have lengths of 4 and 8, then the third side must have a length of 8, as
4 + 8 + 8 = 180°.
Without knowing the lengths of the other two sides, it is impossible to calculate the length of the third side.
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How do you find third side of triangle if two sides are given and angle is given?
The Third side of a triangle if the two sides are given and one angle is given can be found by using the Cosine Law .
What is Cosine Law ?
The Cosine Law states that the square of any one side of the triangle is equal to difference between sum of squares of the other two sides and double of product of other sides and cosine of the angle included between them.
In mathematical terms it means that ;
let a , b be the the know sides and "c" be the unknown side of the triangle ABC , and the known angle be = angle C ;
So , the side c will be ⇒ [tex]c^{2}= a^{2} +b^{2} - 2ab\times Cos(C)[/tex] ;
Therefore , the Cosine Law helps in finding the missing third side .
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Kate bought a circular swimming pool with a diameter of 50 feet. She wanted to know about how
many feet the circumference of her pool is. Which of these is the closest number to the
circumference?
The closest number to the circumference of the circle is 157 feet.
What is circumference?
The circumference of a circle or ellipse in geometry is its perimeter. That is, if the circle were opened up and straightened out to a line segment, the circumference would be the length of the arc. The curve length around any closed figure is more generally referred to as the perimeter.
Given:
Kate bought a circular swimming pool with a diameter of 50 feet.
We have to find the closest number to the circumference of the circle.
Since,
Circumference = 2πr
where r is the radius of circle.
Here diameter of circle = 50 feet.
⇒ Radius of circle = 25 feet.
⇒ Circumference = 2*π*25 = 157.08
Hence, the closest number to the circumference of the circle is
157 feet.
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PLEASE LOOK AT PHOTO AND ANSWER QUESTION!!!
Answer:
A
Step-by-step explanation:
the exact number is 1,000 miles per hour
so the closest answer is A
2.4 liters of water is poured into a pitcher that now contains 10.1 liters of water. Which equation represents this?
Please help! ;)
The vectors VN−→{−8;3} and MT−→{2;10} are given. Calculate: 7⋅VN−→3⋅MT−→ =
Answer: { ; }.
Answer:
Step-by-step explanation:
To calculate 7⋅VN−→3⋅MT−→, we need to perform scalar multiplication on the two vectors. Scalar multiplication is simply multiplying each of the components of the vector by the scalar value.
So for the first vector, we have: 7⋅VN−→ = {7⋅(-8); 7⋅3} = {-56; 21}.
For the second vector, we have: 3⋅MT−→ = {3⋅2; 3⋅10} = {6; 30}.
Then to add the two vectors, we simply add the corresponding components: {-56; 21} + {6; 30} = {-50; 51}.
Therefore, the final result is {-50; 51}.
A salesperson works 40 hours per week at a job where he has two options for being paid. Option A is an hourly wage of $26. Option B is a commission rate of 5% on weekly sales. How much does he need to sell this week to earn the same amount with the two options?
The total amount of sales he must make should be of $20800.
What is expression?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is that a salesperson works 40 hours per week at a job where he has two options for being paid. Option A is an hourly wage of $26. Option B is a commission rate of 5% on weekly sales
Assume that the amount of sales he needs to make is of ${x}. So, for same amount, we can write -
(26 x 40) = 5% of {x}
(26 x 40) = (5/100) x {x}
{x} = (26 x 40 x 100)/5
{x} = (26 x 40 x 20)
{x} = 26 x 800
{x} = 20800
Therefore, the total amount of sales he must make should be of $20800.
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I need help!!! i attached a photo of the math!!
Answer:-1/p^3
Step-by-step explanation:You do exponents first so -p to the power of -7 is -1/p^7 which then you do -p^4 which is p^4 multiply both you get -1/p^3
Answer:
-1/P3minus 1 P cubeStep-by-step explanation:
Hope this helps you :)
saben que significa eso
The coordinates of triangle DEF are D(9, 3), E(12, 14), and F(7, 7). If you translate triangle DEF 7 units left and 12 units down, what are the coordinates of E'?
Answer:
(15,19
Step-by-step explanation:
a carpenter is building a ramp as shown in the diagram. what is m√t
Answer:
B
Step-by-step explanation:
180-152=28
t=180-(28+90)
t=62
Which value of xis
the domain of f(x) = Vx – 8?
O A. X = -8
O B. x = 0
O C. X= 7
O D. x = 10
Answer:
the anser is a
Step-by-step explanation:
The domain of the function f (x) = √x - 8 is,
⇒ Domain = [8, ∞)
What is mean by Function?A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
We have to given that;
The function is,
⇒ f (x) = √x - 8
Now, We can find the domain of the function as;
The function is,
⇒ f (x) = √x - 8
Domain is,
√ x - 8 ≥ 0
x - 8 ≥ 0
x ≥ 8
Thus, The domain of the function f (x) = √x - 8 is,
⇒ Domain = [8, ∞)
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Mrs. Thompson was asked to provide at least 180
bagels for a workshop. She already has 3 dozen bagels.
Mrs. Thomson will buy the remaining bagels in
packages of 6. Which inequality shows all the values of
x if x equals the number of packages of bagels she
could buy, beginning with the minimum value of x?
A. x < 24
B. XS 12
C. x 24
D. X 2 12
Answer: c
Step-by-step explanation:
heyy! i’ll give brainliest help asap pls
Answer: the answer is B
Step-by-step explanation:
On a certain hot summer day, 481 people used the public swimming pool. The daily prices are $1. 25 for children and $2. 25 for adults. Receipts for admission totaled $865. 25. How many children and how many adults swam at the public pool that day?
There were 481 people that utilized the public swimming pool that day, including 217 children and 264 adults.
what is equation ?An equation is a mathematical formula that connects two assertions using the equal sign (=) to denote equivalence. In algebra, an equation is a mathematical statement that establishes the equality of two mathematical expressions. For instance, an equal sign separates the components 3x + 5 and 14 in the equation 3x + 5 = 14. A mathematical formula is used to express the connection between two phrases on either side of a letter.
given
The number of children =X=217
The number of adults=264
Let say the number of children are denoted by X
Then the number of adults are (481-X)
Price for children =1.25X
Price for adults=2.25(481-X)
Price for children +Price for adults=865.25
1.25X+2.25(481-X)=865.25
Solving for X:
1.25X+1082.25-2.25X=865.25
-X=865.25-1082.25
-X=-217
X=217
The number of children =X=217
The number of adults=(481-X)
The number of adults=(481-217)
The number of adults=264
There were 481 people that utilized the public swimming pool that day, including 217 children and 264 adults.
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please help i can give brainliest!!!
Answer:
medain:64
Q1:62
Q3:70
Step-by-step explanation:
the line in the middle of the box in the box plot is the medain which is over the number 65
Q1 is the first line of the box which is over 62 and Q3 is the 3rd one is 70.
(im a bit confused with the box plot part
Yesterday's afternoon temperature was 21*F. It plunged overnight to 3*F. How many degrees did the temperature drop? I think the answer would be D) 24 im not so sure..
Answer: its D) 24
Step-by-step explanation:
For your answer i have checked and it is correct it is D) 24
Find an
angle 0 coterminal to -301°, where 0°
Answer:
what do you mean?!??!!!!
Data was collected for 40 randomly selected honey bee hives on a farm: The number of parasites found in each hive was recorded: The data is summarized in the histogram below. 10 [ 10 15 20 25 30 35 40 45 50 parasites in hive What is the maximum possible number of parasites for the class containing the value 27? Note: Each class contains its lower class boundary, but not its upper class boundary. maximum =
The maximum possible number of parasites for the class containing the value 27 is 29
The data for 40 randomly selected honey bee hives on a farm is summarized in the histogram below.
From given histogram we have the classes as:
10 - 15, 15 - 20, 20 - 25, 25 - 30, 30 - 35, 35 - 40, 40 - 45, 45 - 50
To find: the maximum possible number of parasites for the class containing the value 27
The class that contains the value 27 is 25 - 30
Given that each class contains its lower class boundary, but not its upper class boundary.
So, the maximum possible number of parasites for the class containing the value 27 would be 29 as 30 is not part of class 25 - 30
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i) a butcher has some hamburger that is 80% lean and some that is 88% lean. he wishes to make 800 ponds of a burger mix that is 83% lean. how much of each type should he use?
by splanation, in be clearly what he taking about. the hamburger, usually. is 1/4 p.1/2 p. in triple hamburger on 4 by 4
The number of used hamburgers that is 80% lean is = 500
and the number of used hamburgers that is 88% lean is = 300.
Let the number of hamburger that is 80% lean be = x.
So the number of hamburger that is 88% lean is = 800 - x
According to question after the mixing all these the total percentage of lean in 800 ponds of burgers is 83%.
So, the suitable mathematical equation is,
80% of x + 88% of (800 - x) = 83% of 800
(80/100) x + (88/100) * (800 - x) = (83/100) * 800
80x + 88 (800 - x) = 83 * 800 [Multiplying 1000 with both sides]
80x + 88 * 800 - 88x = 83 * 800
88x - 80x = 88 * 800 - 83 * 800 = 800 (88 - 83) = 5 * 800
8x = 800 * 5
x = (800 * 5)/8 = 100 * 5 = 500
Hence the number of hamburger with 80% lean is 500 and the number of hamburger with 88% lean is = (800 - 500) = 300.
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hello please help i’ll give brainliest
Answer:
3.
Step-by-step explanation:
find each length below
What does AY represent in this slope triangle? Ay Δx O Horizontal change O Slope angle T62
can someone answers this please
Answer:
Slope Angle. is the correct answer.