Write an equation in slope-intercept form of the line with the given slope and y-intercepts.
slope = 0
y-intercept = 8
Answer:
The equation of the straight line y = 8
Step-by-step explanation:
Explanation:-
Given that the slope m=0 and y-intercept c=8
The equation of the straight line y=mx+c
The equation of the straight line y=0x+ 8
The equation of the straight line y = 8
an hyperboloid is a 3d shape whose cross sections are hyperbolas. a nuclear cooling tower is in the shape of a portion of a hyperboloid. a cross section of the cooling tower can be modeled by the hyperbola shown below, centered at the origin and opening left/right. if the smallest diameter of the cooling tower is 180 m and the diameter is 195 m at its highest point, 80 m above, write the equation of the hyperbola.
The equation of the hyperbola for the cross section of the cooling tower is x²/8100 - y²/9506.25 = 1.
We must take into account its characteristics in order to formulate the hyperbola's equation for the cooling tower's cross section.
Since the origin serves as the hyperbola's centre, its coordinates are (0, 0).
The left/right opening of the hyperbola indicates that the primary axis is horizontal.
The cooling tower's smallest diameter is 180 metres, which is the same length as the minor axis.
The primary axis' 195 m length and the diameter at its highest point are matched.
The hyperbola's highest point is 80 metres above the centre.
These characteristics allow us to write the hyperbola's equation in standard form:
(x - h)²/a² - (y - k)²/b² = 1
Where (h, k) represents the center of the hyperbola.
Substituting the given values:
Center: (h, k) = (0, 0)
Minor axis: 2a = 180 m, so a = 90 m
Major axis: 2b = 195 m, so b = 97.5 m
Vertical shift: c = 80 m
Now we can write the equation of the hyperbola:
x²/90² - y²/97.5² = 1
Simplifying, we have:
x²/8100 - y²/9506.25 = 1
To learn more about hyperbola link is here
brainly.com/question/19989302
#SPJ4
a) Expand and simplify (x + 4)(x-7)
Answer:
Expanded:x²-7x+4x-28
Simplified: x²-3x-28
Step-by-step explanation:
A 12 ft ladder is place 5 feet from a build. Approximately how high does the ladder reach
A: 13ft
B:11ft
C:8
D:10ft
Type the correct answer in the box. Write your answer as a whole number.The radius of the base of a cylinder is 10 cm, and its height is 20 cm. Colon is used to fill the cylinder with water. The radius of the cone base is 5 cm, and its height is 10 cm. The number of times one needs to use the completely filled colon to completely fill the cylinder with water is *blank*
Answer: 24 times
Step-by-step explanation:
volume of cone: (1/3)×5^2×π×10=250π/3 cm^3
volume of cylinder: 10^2×π×20=2000π cm^3
2000π/(250π/3 )=2000π×(3/250π)=24
Use a calculator to find each sum or difference. Round your answer to the nearest hundredth.
a. 422 3/7 - 367 5/9
b. 23 1/5 + 45 7/8
Answer:
54.87
69.08
Step-by-step explanation:
Calculate the concentrations of all species present in 0.72 M
NH3 (Kb=1.8×10−5).
Express your answers using two significant figures separated by
commas. Enter the concentrations of the species in t
To calculate the concentrations of all species present in a 0.72 M NH3 solution (Kb=1.8×10−5), we can use the principles of the equilibrium expression for the dissociation of NH3 in water.
NH3 (ammonia) is a weak base that reacts with water to form NH4+ (ammonium) and OH- (hydroxide) ions. The equilibrium expression for this reaction can be written as:
NH3 + H2O ⇌ NH4+ + OH-
Since the initial concentration of NH3 is 0.72 M, we can assume that x mol/L of NH3 will dissociate to form x mol/L of NH4+ and OH-. Therefore, the concentrations of NH4+ and OH- will also be x mol/L.
To calculate the value of x, we can use the Kb expression, which relates the equilibrium constant to the concentrations of the species. In this case, Kb = [NH4+][OH-]/[NH3]. Substituting the known values, we have:
1.8×10−5 = x * x / (0.72 - x)
Solving this equation will give us the value of x, which represents the concentration of NH4+ and OH-. Finally, we can express the concentrations of NH3, NH4+, and OH- using two significant figures, separated by commas, based on the calculated value of x.
Learn more about equation here: brainly.com/question/30130739
#SPJ11
a survey of athletes at a high school is conducted, and the following facts are discovered: 51% of the athletes are football players, 43% are basketball players, and 1% of the athletes play both football and basketball. an athlete is chosen at random from the high school: what is the probability that the athlete is either a football player or a basketball player?
The probability that the athlete is either a football player or a basketball player is 93%.
What is probability?
The likelihood that something will occur is the foundation of it. The justification for probability serves as the basic foundation for theoretical probability. A coin is tossed, for instance, and the theoretical likelihood of receiving a head is 1 in 2.Football players= 51%
Basketball players= 43%
Both football and basketball= 1%
Probability = Football players + Basketball players
- Both football and basketball
Probability= 51% + 43% - 1%
Probability= 93%
Inconclusion The probability that the athlete is either a football player or a basketball player is 93%.
Learn more about probability
brainly.com/question/11234923
#SPJ4
The area of a rectangle is expressed as x4 − 16y^4, determine & state the length and the width of the rectangle, expressed as polynomials.
Answer:
Step-by-step explanation:
16 = 2 *2 * 2 * 2 = 2⁴
16y⁴ = (2y)⁴
x⁴ - 16y⁴ = x⁴ - (2y)⁴
= (x²)² - [ (2y)² ]²
{Use identity = a² -b² =(a +b)(a- b). Here a =x² & b =(2y)²}
= (x² + (2y)² ) (x² - (2y)² )
= (x² + 4y²) (x² - 4y²)
100 points & brainliest if you get it correct!
\(\\ \sf\longmapsto \dfrac{12.19}{5.7}\)
\(\\ \sf\longmapsto 2.14/lb\)
Brand 22.15/lb+2=2.17/lb
Brand 2 is a better deal and 2.17lb is the unit price
Write m2 - 20m + 72 = -3 in vertex form.
Answer:
yes I am telling you about the India is so much of drugs that this is because I 6
Step-by-step explanation:
just see attached answer
52÷25
What is the answer :)
Answer:
2.08 this is answer
(picture)
complete it
A store manager kept track of the number of newspapers sold each week over a seven-week period. The results are shown below. \( 87,87,215,154,288,235,231 \) Find the median number of newspapers sold.
The median number of newspapers sold over seven weeks is 223.
The median is the middle score for a data set arranged in order of magnitude. The median is less affected by outliers and skewed data.
The formula for the median is as follows:
Find the median number of newspapers sold. (87, 87, 215, 154, 288, 235, 231)
We'll first arrange the data in ascending order.87, 87, 154, 215, 231, 235, 288
The median is the middle term or the average of the middle two terms. The middle two terms are 215 and 231.
Median = (215 + 231)/2
= 446/2
= 223
In statistics, the median measures the central tendency of a set of data. The median of a set of data is the middle score of that set. The value separates the upper 50% from the lower 50%.
Hence, the median number of newspapers sold over seven weeks is 223.
To know more about the median, visit:
brainly.com/question/300591
#SPJ11
How do you find the other angle of an alternate interior angle if one angle is 70
what is the x for : -2x^2+24x-72=0
Answer:
x=6
Step-by-step explanation:
Answer:
x = 6
Step-by-step explanation:
A home is purchased for $60,000 in 2001 and sold for $225,000 in 2021. Plot this on a graph. Then draw 2 lines, 1 mapping a linear relationship, and the other mapping an exponential one.
A. What is the average rate of change
B. Which model (linear or exponential) has a higher rate of change from 2010-2021?
C. What is the approximate value of the linear model in 2008?
Answer:
a. 3.6
b Linear
c. 2.13333
Plot a graph going up vertically by amounts 30,000 would be = 1
60,.000 would be = 2, 90,000 would be = 3 etc.
225,000 would show between 7 and 8. where marks of 15/30 = 1/2 would be counted back from 240,000 to 225,000 and between 210,000 to 240,000
After mapping the x rate must be 1 for both linear and for exponential.
The average rate of change is found when 60k = 2 and 225k = 7.5 is increasing and years shown 2001 to 2021 are shown on x axis.
= 20 years
Therefore linear shows 2 when x = 1 then shows 7.5 when x = 20
20/7.5 = 2.6
Therefore, this relationship is linear because each yyy-value is 7.5/20 more than the value before it. The x value goes up by 1 each value of 0.37 for y
When the value is exponential the y value should go up by 1 and as it is 30,000 each 1 value and x =1 goes up 2 2/3 = 2.6667 for every 30.000k to every x value.
A. 2 -2 2/3 = 2.31555.. average rate of change.for exponential and between 3.5 and 3.7 = 3.6 average rate of change for linear.
B linear
C 2008 = 8 YEARS 8/20 X 2 = 0.8
0.8 X 2 2/3= 2.13333333 is the app value of the linear model 2008.
Find the value of p. p − 1 = 5 p + 3p − 8
Answer:
p = 1
Step-by-step explanation:
[add like terms]
p - 1 = 8 p - 8
[add 8 to both sides]
p + 7 = 8 p
[subtract p from both sides]
7 = 7 p
[divide each side by 7]
p = 1
Answer:
P=1
Step-by-step explanation:
collecting like terms we have
p - 5p - 3p = -8 + 1
-7p = -7
divide both sides by -7
p = 1
Mackenzie needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 3.75 hours and charged her $157 for parts. The total was $400.75. Write and solve an equation which can be used to determine x, the cost of the labor per hour.
Answer:
x=65
Step-by-step explanation:
Based on the given conditions, formulate: 157+3.75 X x=400.75
Rearrange unknown terms and Calculate the sum:
3.75x = 400.75 - 157
3.75x = 243.75
x=243.75 / 3.75
x=65
The cost of labour per hour is $65.
Given that, the technician at the store worked on the computer for 3.75 hours and charged her $157 for parts. The total was $400.75.
We need to write and solve an equation which can be used to determine x, the cost of the labour per hour.
What is a linear equation?A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, x is a variable, A is a coefficient and B is constant. The standard form of a linear equation in two variables is of the form Ax + By = C. Here, x and y are variables, A and B are coefficients and C is a constant.
Now, according to question 157+3.75×x=400.75
⇒3.75x=400.75-157
⇒3.75x=243.75
⇒x=243.75/3.75
⇒x=65
Therefore, the cost of labour per hour is $65.
To learn more about a linear equation visit:
https://brainly.com/question/27664510.
#SPJ2
Which of the following is equivalent to the expression below?
3(5-2i)
Answer: 15 - 6i
Step-by-step explanation:
3(5-2i)
3×5+3×(−2i)
Do the multiplications.
15−6i
Find the best linear approximation, L(x), to f(x) = e' near x = 0. i.L(x) = x+1 ii. L(x) = x iii. LX) = c + 1
The best linear approximation to the function f(x) = e^x near x = 0 is L(x) = x + 1.
The given function is f(x) = e^x near x = 0.
To find the best linear approximation, L(x), we use the formula:
L(x) = f(a) + f'(a)(x-a),
where a is the point near which we are approximating.
Let a = 0, so that a is near the point x = 0.
f(a) = f(0) = e^0 = 1
f'(x) = d/dx (e^x) = e^x;
so f'(a) = f'(0) = e^0 = 1
Substituting these values into the formula: L(x) = 1 + 1(x-0) = x + 1
Therefore, the best linear approximation to f(x) = e^x near x = 0 is L(x) = x + 1.
For instance, linear approximation is used to approximate the change in a physical quantity due to a small change in another quantity that affects it.
To know more about linear approximation, visit:
https://brainly.com/question/1621850
#SPJ11
Given Kite ABCD, in which AN=3.6 m, What is AC?
Given Kite ABCD, in which AN=3.6m, the length of AC is 7.2 m.
What is length?Length is a measurement of how long or short something is. It can be measured in inches, feet, meters, or other standard units. Length is used to measure the size of objects, the distance between two points, and many other things. Length is an important concept in mathematics and science, and is used to compare and contrast objects, measure angles and distances, and solve problems.
The length of AC can be found using the Pythagorean theorem. The Pythagorean theorem states that in a right triangle, the sum of the squares of two sides of the triangle is equal to the square of the third side.
In this case, the triangle ABCD is a right triangle, since one of the angles is 90 degrees. The side AB is equal to AN, or 3.6 m. The side AC is the hypotenuse, so we need to find the length of that side.
In the given figure
ABCD is a kite
AC is the shortest diagonal
BD is the longest diagonal
By using the fact above
BD ⊥ AC
BD bisects AC
AC ∩ BD at the point N
→ That means N is the midpoint of AC
N is the midpoint of AC
AN = NC
AN = 3.6 m
NC = 3.6 m
AC = AN + NC
AC = 3.6 + 3.6
AC = 7.2 m
Therefore, the length of AC is 7.2 m.
To know more about length click-
brainly.com/question/29813582
#SPJ1
Complete refence question:
PLEASE SHOW YOUR WORK THIS IS DO IN AN HOUR AND I HAVE TO SUMBIT A PHOTO OF THE WORK AND THE WORK PAGE PLEASE IN NEED OF HELP
Answer:
\(\frac{21}{2} * \frac{2}{21} = 1\)10 1/2 as an improper fraction is \(\frac{21}{2}\)
the reciprocal of 10 1/2 is \(\frac{2}{21}\)
so \(\frac{21}{2} * \frac{2}{21} = 1\)
below is an image of the rest of the answers
The base angles of an
isosceles triangle
Measure (2x+40)° and
(5x+16)". find x and the
Measure of both angles.
Answer:
71
93.5
x=15.5
Step-by-step explanation:
(2x+40)+(5x+16)+(x)=180
you have to put all the measures together and equal it to 180. when it comes to triangles, all the angles added together are equal to 180.
now solve the equation and you should get this:
x=15.5
the next step is to solve the give equations separately:
2(15.5)+40=71
5(15.5)+16=93.5
(15.5)=15.5
now to check the work, you have to add all the measures that were just calculated:
71+93.5+15.5=180 so check!
Please anyone help me
Answer:
cant tell what ths says
Step-by-step explanation:
MATHEMATICS
Find (A-B) n B when A={a,e,i,o,u} and B={a,b,c,d}
a.
b. A
zia
d. A-B
Answer:
( A - B).
A = { a, e, I, o, u}
B = { a, b, c, d }
{ e, I, o, u}
A - B = subtracting elements of B from A ( all the common elements)
Define an action adder :: io () that reads a given number of integers from the key board, one per line, and displays their sum. For example:.
The program is an illustration of loops
What are loops?Loops are program statements that are used to perform repetition
The main programThe program written in Python, where comments are used to explain each line is as follows:
#This initializes sum to 0
summ = 0
#This gets input for the first number
num = int(input())
#This is repeated while num is not -1
while num!= -1:
#This calculates the sum
summ+=num
#This gets input for the num
num = int(input())
#This prints the sum
print(summ)
Read more about loops at:
https://brainly.com/question/16397886
You have $5.60 to buy avocados for a guacamole recipe. Avocados cost $1.40 each.
Answer:
You could buy 4 avacodos with how much money you have :)
You can buy 4 avocados
A barn with the dimensions shown is to be painted. One gallon of paint covers 400 square feet. About how many gallons of paint are needed for one coat on the entire exterior of the barn, including the roof?
Approximately 4.5 gallons of paint would be needed for one coat on the entire exterior of the barn, including the roof.
To determine the number of gallons of paint needed for one coat on the entire exterior of the barn, including the roof, we need to calculate the total surface area that needs to be painted.
Let's consider the dimensions of the barn:
Length: 30 feet
Width: 20 feet
Height: 10 feet
First, let's calculate the surface area of the four walls. Since a rectangular barn has opposite walls with equal dimensions, we can calculate the area of one wall and multiply it by 4:
Wall area = Length * Height
= 30 feet * 10 feet
= 300 square feet
Now, multiply the wall area by 4 to account for all four walls:
Total wall area = Wall area * 4
= 300 square feet * 4
= 1200 square feet
Next, let's calculate the surface area of the roof, which is a rectangle:
Roof area = Length * Width
= 30 feet * 20 feet
= 600 square feet
Finally, we calculate the total surface area that needs to be painted by adding the wall area and the roof area:
Total surface area = Total wall area + Roof area
= 1200 square feet + 600 square feet
= 1800 square feet
Given that one gallon of paint covers 400 square feet, we can divide the total surface area by 400 to determine the approximate number of gallons needed for one coat:
Number of gallons = Total surface area / Coverage per gallon
= 1800 square feet / 400 square feet
= 4.5 gallons
for such more question on surface area
https://brainly.com/question/20771646
#SPJ8
Which representation shows y as a function of x?
Answer:
D
Step-by-step explanation:
Answer:
d
Step-by-step explanation: