Please help! I need explanation on why the answer is what it is.
I can’t understand slope :(
Answers
The correct equation that represents the slope equation using the given information will be (B) y = -5x + 2.
What exactly are slopes?The slope of a line can be used to gauge how steep it is.Divide the change in y by the change in x, or "rise over run," to find the slope in mathematics.Locate two locations along the chosen line and find their coordinates.Find the y-coordinate difference between these two places (rise).Find the difference between the x-coordinates of these two points (run).Subtract the difference in y-coordinates from the difference in x-coordinates (rise/run or slope).So, the slope equation will be:
Slope form: y = MX + bM is -5 and points are (-1, 2).Now, the correct question will be:
y = MX + by = -5x + 2Therefore, the correct equation that represents the slope equation using the given information will be (B) y = -5x + 2.
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Correct questions:
Get the correct equation of the slope -5 and points (-1, 2).
(A) y = 5x + 2
(B) y = -5x + 2
(C) y = -5x - 2
(D) y = 5x - 2
Related Questions
Ten years ago, you could buy a loaf of bread for $1.21. Twenty years ago, you could buy a loaf of bread for $0.92.
Answers
Answer:
$0.29 is the price difference
Step-by-step explanation:
Ten years ago, you could buy a loaf of bread for $1.21. Twenty years ago, you could buy a loaf of bread for $0.92.
California Chinese Shar Pei Rescue buys 1,898 lbs of dog food. They plan to split it equally among their 26 dogs. How much dog food will each dog receive (this is not per day FYI)?
Answers
Answer:
The answer is 73 i hope it helps
1). preises 12,4 the following: Find the intercepts and domain and perform the symmetry test on each parabola with equation: Graph the vertex, focus, and endpoints of the latus rectum; then draw the parabola for each ome axes the parol plete (a) y = 87 (c) y = – 4x (b) x2 = 8y (a) x = - 4y
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wee have
y^2=8x
this is a horizontal parabola open to the right
the vertex is the origin (0,0)
so
(h,k)=(0,0) ------> vertex of the parabola
I am attaching a picture of the question as you can see my teacher has already answered it but she wants me to show how she got the answer
Answers
Surface area of a square pyramid:
[tex]\begin{gathered} SA=B+\frac{1}{2}p\cdot s \\ \\ B=\text{area of the base} \\ p=\text{perimeter of the base} \\ s=\text{slant height} \end{gathered}[/tex]To find the surface area of the given pyramid as you don't have the length of the slant height, use the height of the pyramid and the radius of the base to form a right triangle and find the slant height:
Pythagorean theorem for the right triangle above:
[tex]\begin{gathered} s^2=h^2+(\frac{1}{2}b)^2 \\ \\ s=\sqrt[]{h^2+(\frac{1}{2}b)^2} \\ \\ s=\sqrt[]{(12in)^2+(\frac{1}{2}\cdot18in)^2} \\ \\ s=\sqrt[]{(12in)^2+(9in)^2} \\ \\ s=\sqrt[]{144in^2+81in^2} \\ \\ s=\sqrt[]{225in^2} \\ \\ s=15in \end{gathered}[/tex]Perimeter of the base is:
[tex]\begin{gathered} p=4b \\ p=4\cdot18in \\ p=72in \end{gathered}[/tex]Area of the square base:
[tex]\begin{gathered} B=b^2 \\ B=(18in)^2 \\ B=324in^2 \end{gathered}[/tex]Then, the surface area of the given pyramid is
[tex]\begin{gathered} SA=324in^2+\frac{1}{2}\cdot72in\cdot15in \\ \\ SA=324in^2+540in^2 \\ SA=864in^2 \end{gathered}[/tex]20) Write a division number story with an answer of 1/4.Be sure to ask a question.
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Example : 2 oraanges is to be share among two people in the ratio of 1 to 7. Find the amount of orange each person will get
Since, 16 oranges is to be shared among two people and their ratio is 1 to 7
Firstly, sum the ratios together
= 1 + 7
= 8
For the first person
Since the total ratio is 8
Then the first person will receive 1/8 of the total oranges
[tex]\begin{gathered} \frac{1}{8}\text{ x 2} \\ =\frac{2}{8} \\ =\frac{1}{4} \end{gathered}[/tex]Find the range and standard deviation of the set of data.230, 232, 234, 236, 238, 240, 242
Answers
The data given is ,230, 232, 234, 236, 238, 240, 242.
The range of the data is defined the difference of largest number from smallest number.
The largest number in the data is, 242.
The smallest number in the data is, 230.
Therefore, the range is determined as
[tex]R=242-230[/tex][tex]R=12.[/tex]The range of the set of data is 12.
To determine the standard deviation,
First determine the mean of the data,
[tex]E(x)=\frac{230+232+234+236+238+240+242}{7}[/tex][tex]E(x)=\frac{1652}{7}[/tex][tex]E(x)=236[/tex]The value of
[tex]E(x^2)=(230-236)^2+(232-236)^2+(234-236)^2+(236-236)^2+(238-236)^2+(240-236)^2+(242-236)^2[/tex][tex]E(x^2)=36+16+4+0+4+16+36[/tex][tex]E(x^2)=112[/tex]The standard deviation is determined as,
[tex]SD=\sqrt[]{v}[/tex]Here v denotes the variance.
[tex]v=\frac{112}{7-1}[/tex][tex]v=\frac{112}{6}[/tex][tex]v=18.66[/tex]The standard deviation is given as,
[tex]SD=\sqrt[]{18.66}[/tex][tex]SD=4.32[/tex]Edmond, an NFL running back, rushed for an average of 148 yards per game this season, which is 85% higher than his average was last season. What was his average then?
Answers
Edmond average then was 174.12 , by using the given percentage.
What do you mean by percentage?
A ratio that may be stated as a fraction of 100 is a percentage. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The proportion therefore refers to a component per hundred. Per 100 is what the word percent means. The letter "%" stands for it.
It is given that Edmond rushed for an average of 148 yards per game this season.
Let the average of Edmond last year be x
According to question, 148 yards per game is 85% of x
85% of x = 148
85/100 × x = 148
x = 148 ÷ (85/100) = 148 × (100/85) = 14800/85 = 174.12
Thereofore, Edmond average then was 174.12
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Factorise the following x^2-8x-9
Answers
answer:
(x-9)(x+1)
step-by-step explanation:
this expression can be solved by grouping. hope that helps!
Explanation:
Contestants in a dance-a-thon rest for the same amount of time every hour. A couple rests for 8 minutes in 2 hours. How long did they rest in 3 hours?
Answers
The couple rests for 12 minutes in 3 hours in the dance-a-thon.
Given that the couple rests for 8 minutes in 2 hours and also it is given that the contestants rests for the same amount of time every hour.
We will divide the 8 minutes by 2 to get the hourly rest time.
=8/2
=4 minutes per hour.
The couple rests for 4 minutes every hour. For 3 hours they will rest for 3x4 minutes. As they rest for same amount of time every hour.
= 12 minutes for 3 hours.
Therefore, the contestants in a dance-a-thon rests for 12 minutes in 3 hours.
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6x10^9/5x10^ write your answer in scientific notation
Answers
Answer:
1.2*10^4 or 12*10^3
Step-by-step explanation:
(6*10^9)/(5*10^5)=12000
12000=12*10^3
12000=1.2*10^4
i'm stuck on this problem!
7x-7;x=4
Answers
Answer:
7x-7 ;x=4
we will just substitute for the values
=7(4)-7
=28-7
=21
Step-by-step explanation:
award as brainliest
The sum of two numbers is 7. Find the numbers
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Statement Problem: The sum of two numbers is 7. Five times the larger number plus four times the smaller number is 48. Find the numbers.
Solution:
Let x be the larger number and y be the smaller number such that;
[tex]\begin{gathered} x+y=7\ldots.\ldots\ldots\text{equation}1 \\ 5x+4y=48\ldots\ldots\text{.equation}2 \end{gathered}[/tex]From equation 1, we have;
[tex]\begin{gathered} x+y=7 \\ x=7-y\ldots\ldots\ldots....\text{equation}3 \end{gathered}[/tex]Substitute equation3 in equation2, we have;
[tex]\begin{gathered} 5x+4y=48 \\ 5(7-y)+4y=48 \\ 35-5y+4y=48 \\ -1y=48-35 \\ -1y=13 \\ \text{Divide both sides by -1;} \\ -\frac{1y}{-1}=\frac{13}{-1} \\ y=-13 \end{gathered}[/tex]Then, substitute the value of y in equation3;
[tex]\begin{gathered} x=7-y \\ x=7-(-13) \\ x=7+13 \\ x=20 \end{gathered}[/tex]Thus, the larger number is 20 and the smaller number is -13
не 22° K What is the measure of angle HJI? O 389 0 68° 112 1589
Answers
As, from the figure :
Angle HJK = 90 and IJK =22
Substitute the value :
Angle HJK = Angle HJI and the angle IJK
So, equations will be :
[tex]\begin{gathered} \angle HJK=\angle HJI\text{ + }\angle IJK \\ 90=\angle HJI+22 \\ \angle HJI\text{ = 90 -22} \\ \angle HJI=68 \end{gathered}[/tex]Answer : Angle HJI = 68 degrees
Answer B) 68 degrees
1. Translate & Solve *20 points"Seven subtracted from the product of a number and -4 is -59."A) n = 13B) n = -13C) n = 26D) n = -26
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Seven subtracted from the product of a number and -4 is -59, let me translate it.
[tex]-4x-7=-59[/tex]Let me solve it now (Next).
[tex]\rightarrow4x+7\text{ = 59}\rightarrow x=13[/tex]The sum of two-sevenths of a number and 3 is 9
[tex]\frac{2x}{7}+3=9[/tex]This is the translation, let me solve it next.
[tex]\frac{2x}{7}=6\rightarrow x\text{ = }\frac{42}{2}=21[/tex][tex]x^2-14=50\rightarrow x\text{ = 6}[/tex][tex]\frac{40x}{100}-10\text{ =-4}[/tex][tex]\frac{40x}{100}=6\rightarrow x\text{ = }\frac{600}{40}=15[/tex]The quotient of a number increased by 4 and -3 is 15
[tex]\frac{x}{4}-3=15\rightarrow x=72[/tex]A vendor sells h hotdogs and s sodas. If a hotdog costs twice as much as a soda, and if the vendor takes in a total of d dollars, how many cents does a soda cost?.
Answers
Given, there are hotdogs and sodas as items. Each hotdog costs twice the cost of soda.
Let's assume the cost of soda is x dollars. Then, the cost of a hotdog would be 2x dollars. Then, h hotdogs cost 2xh dollars, and simultaneously, s sodas cost xs dollars.
Given, the vendor takes a total of d dollars, then
d = 2xh + xs
Therefore, if the price of a soda is x dollars, then
x = [tex]\frac{d}{2h + s}[/tex] dollars
And also, since 1 dollar is 100 cents, therefore, 1 cent would be 0.01 dollars.
So finally, x, the price of a soda in cents would be
x = [tex]100(\frac{d}{2h+s})[/tex] cents
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If f(x) = x - 3, g(x) = 3x - 9, and h(x) = x^2-6x+9, then (gf)(2)=
Answers
SOLUTION
Given the question in the image, the following are the solution steps to answer the question.
STEP 1: Write the given functions
[tex]\begin{gathered} f(x)=x-3 \\ g(x)=3x-9 \\ h(x)=x^2-6x+9 \end{gathered}[/tex]STEP 2: Find the gf(2)
[tex]\begin{gathered} \left(gf\right)\left(x\right)=g\left(x\right)f\left(x\right) \\ =g\left(2\right)f\left(2\right) \end{gathered}[/tex]Find g(2)
[tex]\begin{gathered} x=2 \\ By\text{ substitution,} \\ g(2)=3(2)-9=6-9=-3 \end{gathered}[/tex]Find f(2)
[tex]\begin{gathered} x=2 \\ By\text{ subsitution,} \\ f(2)=2-3=-1 \end{gathered}[/tex]Find gf(2)
[tex]\begin{gathered} By\text{ multiplication,} \\ =-3\cdot-1=3 \end{gathered}[/tex]Hence, the answer is 3
let's compare the significant notation recession of two of these numbers 0.00000000004=4.0x10 to the power of 7 =1.08v 10 Wright a sentence comparing then
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We are given these two numbers:
4*10^(-7) and 1.08*10^(-9).
What is similar is that they are in scientific notation, that is, the base of both is
between 1 and 9.
The difference is in the exponent. 0.0000004 is lesser than 1, so the exponent will be negative, while 1,080,000,000 is greater than 1, so the exponent will be positive.
I'll send the pic in the session
Answers
The Slope-Intercept form of the equation of a line is:
[tex]y=mx+b[/tex]Where "m" is the slope of the line and "b" is the y-intercept.
In this case you know that "y" represents the number of books in Himanshu's home library and "x" represents the number of weeks.
In the graph you can identify that:
[tex]b=6[/tex]And you can also identify this point on the line:
[tex]\mleft(2,8\mright)[/tex]Where:
[tex]\begin{gathered} x=2 \\ y=8 \end{gathered}[/tex]Substitute these values into the equation
[tex]y=mx+b[/tex]and solve for "m" in order to find the slope:
[tex]\begin{gathered} 8=(m)(2)+6 \\ 8-6=2m \\ \\ \frac{2}{2}=m \\ \\ m=1 \end{gathered}[/tex]Then, the equation of this line is:
[tex]y=x+6[/tex]Based on the explained above, you can conclude that he had 6 books in his library and then he started adding 1 book each week.
To find the number of books he has after 4 weeks, you can make:
[tex]x=4[/tex]Substitute this value into the equation and evaluate. Then:
[tex]y=(4)+6=10[/tex]The answer is: Option A and Option F.
Select the correct answer.
What is the solution to |2x + 3| = 15?
Answers
Answer:
6
Step-by-step explanation:
2x+3=15
2x=15_3
2x=12
x=12÷2
x=6
Use your answers from #1 and #2 to find the length of each arc between gondola cars. Use 3.14 for pi and round to the nearest hundredth. You must write out all the numbers you are multiplying together, meaning, show your work for full credit.
Answers
We have a SkyWheel.
We know that the angle between the gondolas is 360/41 = 8.78°.
The radius of the wheel is 181/2 = 90.5.
We know have to calculate the length of the arc between gondolas.
The length of the arc L can be calculated using proportions: the length of the arc is to the angle between gondolas as the total circumference of the wheel is to 2*pi (or 360°).
We can express this as:
[tex]\frac{L}{\theta}=\frac{C}{2\pi}[/tex]If we rearrange, we can solve for L:
[tex]\begin{gathered} \frac{L}{\theta}=\frac{C}{2\pi} \\ \frac{L}{\theta}=\frac{2\pi r}{2\pi} \\ \frac{L}{\theta}=r \\ L=\theta\cdot r=(\frac{2\pi}{41})\cdot90.5=(\frac{2\cdot3.14}{41})\cdot90.5=13.86ft \end{gathered}[/tex]NOTE: we have to express the angle theta (that is the angle between the gondolas) in radians when we want to calculate a length. That is why this angle is expressed as the total angle of the circle (2*pi) divided the 41 gondolas.
If we use 8.78°, we should express it as:
[tex]L=\theta\cdot r=8.78\degree\cdot(\frac{2\pi}{360\degree})\cdot90.5ft=13.86ft[/tex]With the factor 2pi/360 we are converting the angle in degrees into radians in order to calculate the length.
Answer: the length of the arc between gondolas is 13.86 ft.
Find the least common denominator for thesetwo rational expressions.x3-3x2 – 2x + 1 x2 + 6x - 7-Enter the correct answer.000DONEClear all02 ?
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Solution
Given
[tex]\begin{gathered} \frac{x^3}{x^2-2x+1}=\frac{x^3}{(x-1)^2} \\ \\ \frac{-3}{x^2+6x-7}=-\frac{3}{(x-1)(x+7)} \\ \end{gathered}[/tex]Hence the LCM is
[tex](x-1)^2(x+7)[/tex]walks 3/4 mile in 1/5 hour. whats the speed in miles per hour
Answers
The speed in miles per hour for the given situation is 3.75 miles per hour.
Given that, walks 3/4 mile in 1/5 hour.
What is the speed?The speed formula can be defined as the rate at which an object covers some distance. Speed can be measured as the distance travelled by a body in a given period of time. The SI unit of speed is m/s.
We know that, Speed = Distance/Time
= 3/4 ÷ 1/5
= 3/4 × 5/1
= 15/4
= 3.75 miles per hour
Hence, the speed in miles per hour for the given situation is 3.75 miles per hour.
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You borrow $6,191 from a bank which charges you 8.4% simple interest. Howamuch will you owe (total) after 6 and a half years?DO NOT ROUND ANY NUMBERS UNTIL YOUR FINAL ANSWER!Round your answer to the nearest cent.
Answers
The formula for simple interest is given by:
Simple Interest = Principal x interest rate x time period
SI = 6,191*0,084*6.5
SI= 3,380.286
Total amount: 3,380.286 + 6,191 = 9,571.286
Answer: $9,571.3
can yall help me with this
Answers
Answer:
C is correct.
Step-by-step explanation:
[tex] \sqrt[4]{ \frac{16}{81} } = \frac{ \sqrt[4]{16} }{ \sqrt[4]{81} } = \frac{2}{3} [/tex]
carlos swam to the bottom of a pool that is 12 feet deep. what is the opposite of carlos's elevation relative to the surface ?
A -12 C 12 feet
B 0 feet D 1/12 foot
Answers
The opposite of Carlo's elevation is 12 feet
Carlos is said to have submerged himself in a 12-foot-deep swimming pool.
Carlos' elevation will be -12 feet with regard to the surface because he submerged himself to the pool's bottom.
The elevation of Carlos as it relates to the ground would be opposite of -12 feet, or -(- 12) feet.
12 feet
Carlos' elevation in relation to the ground is therefore 12 feet higher than it should be.
Thus the opposite of Carlo's elevation is 12 feet .
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how do I translate six more than four times a number z into a variable expression
Answers
For the relationship, two variables are needed.
One of the variable is given as 'z'. Let the other one be 'x'.
Then you need to translate that 'x' is six more than four times a number 'z'.
This can be expressed as,
[tex]x=6+4z[/tex]Thus, the right side of the expression represents the relationship "six more than four times a number z".
What is (f + g)(x)?f(x) = x + 1g(x) = 3x²Write your answer as a polynomial or a rational function in simplest form.
Answers
Given:
f(x) = x + 1
g(x) = 3x²
To find (f + g)(x), sum the like terms of the function.
(f + g)(x) = f(x) + g(x) = x + 1 + 3x²
(f + g)(x) = 3x² + x + 1
Answer: 3x² + x + 1
By half-time at a basketball game, Tracy had already made 18 points. He makes only 3-point baskets in the second half of a game and made a total of 33 points the entire game.
Discrete or Continuous?
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This is the info I’m going off of, “In a basketball game, for example, it is only possible for a team's score to be a whole number—no fractions or decimals are allowed, and so the score is discrete.”
the skills inWhat is the volume of the following figure?Front viewBack viewiş 1 cubic unitcubic unitsReport a problem
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Given that each cube represents 1 cubic units, we need to count how many cubes are in the figure.
From the front view, we count 2 cubes.
From the back view, we count 5 cubes.
There are 5 + 2 = 7 cubes in total, so the volume of the figure is 7 cubic units.
Select all the pairs of equivalent expressions.
3^5\
3^8 and 3^-3
4^-3 and
4^3
(5^2)^-6 and 5^8
5^4\
5^9 and 5^13
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Answer:
I don't know gh6y6y6yytthttrth3th