The linear equation that passes through the points (14, 15) and (20, 24) crosses the y-axis at y = -6.
How to get the y-intercept?
A general linear equation can be written as:
y = m*x + b
Where m is the slope and b is the y-intercept.
If the line passes through two points (x₁, y₁) and (x₂, y₂), then the slope can be written as:
m = (y₂ - y₁)/(x₂ - x₁).
In this case the line passes through (14, 15) and (20, 24) so the slope is:
m = (24 - 15)/(20 - 14) = 9/6 = 3/2
y = (3/2)*x + b
To find the y-intercept we can replace the values of one of the points, like (14, 15)
15 = (3/2)*14 + b
15 = 3*7 + b
15 = 21 + b
15 - 21 = b
-6 = b
The y-intercept is -6.
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Debra makes 26.40 from selling 52.8 ounces of lemonade. Find the unit price in dollars per ounce. If necessary, round your answer to the nearest cent.
The unit price in dollars per ounce is 0.5 dollars per ounce.
According to the question,
We have the following information:
Debra makes 26.40 dollars from selling 52.8 ounces of lemonade.
Now, to convert this into dollars per ounce, we will divide the total amount by the number of ounces of lemonade:
Dollars per ounce = 26.40/52.8
Dollars per ounce of lemonade = 0.5
Now, we can also convert this into cent.
We know that 100 cent make 1 dollar.
So, 0.5 cents will make (0.5*100) cents or in other words, 50 cents.
Now, it will be 50 cents per ounce.
Hence, the units price of lemonade in dollar per ounce is 0.5.
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Mind doing this too?
The expression that represents the perimeter and area of the rectangle are 10x + 4 and 6x²- 24.
How to find the area and perimeter of a rectangle?The rectangle is a quadrilateral with opposite sides equal to each other.
Opposite sides of a rectangle is also parallel to each other.
Therefore,
perimeter of a rectangle = 2(l + w)
where
l = side lengthw = widthTherefore,
l = 3x + 6
w = 2x - 4
Hence,
perimeter of a rectangle = 2(3x + 6 + 2x - 4)
perimeter of a rectangle = 2(5x + 2)
perimeter of a rectangle = 10x + 4
Let's find the expression that represent the area of the rectangle.
Hence,
area of a rectangle = lw
area of a rectangle = (3x + 6)(2x - 4)
area of a rectangle = 6x² - 12x + 12x - 24
Therefore,
area of a rectangle = 6x²- 24
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I put it in quadratic form but i don’t know where to go from there. I got X = -1/20y^2 + 4y +12
ANSWER:
p = -5
STEP-BY-STEP EXPLANATION:
We have that the form of the equation of the parabola is the following:
[tex](y-k)^2=4p\cdot(x-h)[/tex]In this case we have the following equation, we convert it into its correct form, just like this:
[tex]\begin{gathered} \mleft(x-8\mright)=-\frac{1}{20}\cdot\mleft(y+2\mright)^2 \\ (y+2)^2=-20\cdot(x-8) \end{gathered}[/tex]We compare and calculate the value of p, just like this:
[tex]\begin{gathered} 4p=-20 \\ p=-\frac{20}{4} \\ p=-5 \end{gathered}[/tex]Which angle is supplementary to ∠NPI?
five angles all with common vertex of P, with angle NPI measuring 55.6 degrees, angle IPK measuring 44.2 degrees, angle KPL measuring 80.2 degrees, angle LPM measuring 55.6 degrees, and angle MPN measuring 124.4 degrees
∠IPK
∠NPL
∠MPN
∠LPM
Answer:
c. ∠MPN
Step-by-step explanation:
Supplementary angles sum to 180°.
(Note that supplementary angles don't have to be next to each other).
Given ∠NPI = 55.6°.
Therefore, to find the measure of the angle that is supplementary to ∠NPI, subtract the measure of ∠NPI from 180°:
⇒ 180° - ∠NPI = 180° - 55.6° = 124.4°.
The angle that measures 124.4° is ∠MPN.
Therefore, ∠MPN is supplementary to ∠NPI.
Point F is located at (-6, -2) on the coordinate plane. Point Fis reflected over the
y-axis to create point F'. What ordered pair describes the location of F'?l
The ordered pair describes the location of F' is (6, -2) reflected over the
y-axis.
What is meant by the term reflection?A reflection is the shape's mirror image. The line of reflection is formed when an image reflects through a line. A figure is said to reflect another figure when every point in one figure has been equidistant from every point in another figure. The reflected image should be the same shape and size as the original, but it should face in the opposite direction. Translation can also occur as a result of changes in position.The Y-coordinates of a point remain constant when it is reflected across the Y-axis. However, the X-coordinates are transformed into their inverse signs.
As a result, the Y-axis reflection of a point (x, y) is (-x, y).
For the given question;
Point F (-6, -2) is reflected along the y-axis to form a point F'.
The coordinates of F' becomes (6, -2), negative x axis will becomes positive.
Thus, the ordered pair describes the location of F' is (6, -2) reflected over the
y-axis.
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Chocolate milk Riley mix five scoops of chocolate powder with 3 cups of milk Brooke mixes 6 cups of chocolate powder with 4 cups of milk whose mixture is more chocolatey explain how you know
This mixture has an extra scoop of chocolate ice cream so will taste more chocolatey than 3 scoops of chocolate ice cream and 2 cups of milk.
Translate the sentence into an inequality. A number b increased by 6 is less than or equal to -23. please help asap its due tomr
Answer: b+6 (less or equal to sign) -23
Step-by-step explanation: b increased by 6 is b+6
Answer: b+6[tex]\leq[/tex]-23 b[tex]\leq[/tex]-29
Step-by-step explanation:
according to the national retail federation, 34% of taxpayers used computer software to do their taxes. a sample of 125 taxpayers was selected. 4. what is the distribution of the sample proportion of the 125 taxpayers that used the computer software to do their taxes? a. n(0.34, 0.0424) b. n(0.34, 82.5) 5. what is the probability that between 28% and 40% of the taxpayers from the sample of 125 used computer software to do their taxes? a. pnorm(0.4,0.34,0.0424)-pnorm(0.28,0.34,0.0424) b. pnorm(0.4,0.34,125)- pnorm(0.28,0.34,125)
4) the distribution of the sample proportion of the 125 taxpayers that used the computer software to do their taxes is n(0.34, 0.0424) - option A
5) the probability that between 28% and 40% of the taxpayers from the sample of 125 used computer software to do their taxes is pnorm(0.4,0.34,0.0424) - pnorm(0.28,0.34,0.0424) - Option A
4) Given data:
P = 0.34 and n = 125
Since, np = 0.34 * 125 = 42.5 > 10
& n(1 - p) = 125 * 0.66 = 82.5 > 10
Therefore, the normal distribution can be used here:
Mean is μp = p = 0.34
The standard Deviation is σp = [tex]\sqrt \frac{P(1-p)}{n} = \sqrt\frac{(0.34)(0.66)}{125} = 0.0424[/tex]
The distribution of sample proportion will be;
N (0.34, 0.0424)
Therefore, option (a) is correct that is n(0.34, 0.0424)
5) The likelihood that between 28% and 40% of the 125 taxpayers in the sample used tax preparation software is calculated as follows:
pnorm (0.4, 0.34. 0.0424) - pnorm (0.28, 0.34, 0.0424)
Therefore, option A is correct that is pnorm(0.4,0.34,0.0424)-pnorm(0.28,0.34,0.0424)
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What’s the answer plss
Answer: 18.1 cm, ( i think you can use a ruler)
Step-by-step explanation:
Triangle X has two angles that measure 80° and 30°. Triangle Y has two angles
that measure 80° and 70°. Hannah says that triangles X and Y are not similar.
Jasmine says they are similar. Who is correct? Explain. HELPPP PLEASE
Answer:
Jasmine is correct. The triangles are similar.
Step-by-step explanation:
Triangle that have the same angle measurements are similar.
The sum of the interior angles of a triangle add up to 180
Triangle x has angles that measure 80 and 30. That totals 110. The third angle must be 70 so that it adds up to 180.
Triangle Y has angels that measure 80 and 70. That adds up to 150, that means that its third angles must be 30
Both triangles have angle measurements to 80, 70, and 30 so they are similar.
Harry invests £6000 in a savings account.
The account pays 3.4% compound interest per year.
Work out the value of his investment after 3
Give your answer to the nearest penny.
years.
Answer:
$6633.04
Step-by-step explanation:
6000x1.034^3=6633.04
The value of his investment after 3 years will be $6633.04.
What is compound interest?In finance and economics, interest is the payment of an amount above the repayment of the principal sum by a borrower or deposit-taking financial institution to a lender or depositor at a specific rate by a borrower or depositor. It differs from a fee that the borrower may pay to the lender or a third party.
Compound interest is the interest added to the principal amount of a loan or deposit, also known as interest on interest plus interest.
Given that Harry invests £6000 in a savings account. The account pays 3.4% compound interest per year.
The compound interest will be calculated as,
[tex]A = P( 1 + \dfrac{r}{100})^{nt[/tex]
Substitute the values in the equation above and solve,
A = 6000 x 1.034³
A = $6633.04
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At a local print shop, 20 copies can be made for $8. At this rate, how how many copies could be made for $14?
The number of copies that can be made would be: 35 copies
How to solve for the copies that can be madeWe would have to solve this problem through the use of cross multiplication
such that we have 20 copies = 8 dollars
unknown copies ? = 14 dollars
This can be re written to be arranged in the form
20 = 8 dollars
? = 14 dollars
we would have to cross multiply
14 x 20 = 8 x ?
280 = 8?
divide through by 14
? = 280 / 14
= 20
Hence the copies that would be made is 35 copies for 14 dollars at the local print shop
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A deck of cards was shuffled and after each shuffle, the suit of the top card was recorded. The table shows theprobability of each outcome. What is the probability that the top card is not a heart?
Answer:
[tex]0.72[/tex]Explanation:
Here, we want to get the probability that the top card is not a heart card
Mathematically, the sum of the probability that an event will occur and that the event will not occur is 1
Let the event that a heart card is the top card be H
[tex]P(H)\text{ + P(H') = 1}[/tex]We already have P(H) as 0.28
Thus:
[tex]\begin{gathered} 0.28\text{ + P(H') = 1} \\ P(H^{\prime})\text{ = 1-0.28} \\ P(H^{\prime})\text{ = 0.72} \end{gathered}[/tex]Given f(x) = -3x + 1, solve for x when f(x) = −5.
Answer:
x=2
Step-by-step explanation:
-3x+1=-5
Subtract 1 from both sides.
-3x=-6
Divide -3 from both sides.
x=2
If f(x)=-5 and f(x)=-3x+1, x=2.
Can u please help me with this answer
Answer:
option a as x=8 hope you understand my writing , if got some problem comment down
Find the slope between these two points:
(12, -18), (-15, -18)
Answer:
The slope is 0.
Step-by-step explanation:
Using the slope formula which is m= y2 - y1 / x2 - x1, plug in the x values and y values of the two points. (12,-18) is x1 and y1. (-15,-18) is x2 and y2.
When plugging it in we get -18 - (-18)/ -15 - 12. You cannot subtract a negative so it turns from subtraction to addition. So, -18 + 18 / -15 - 12 which equals 0/-27. 0 divided by any number is 0. So the slope is 0, m=0.
Hope this helps :)
HELP MEE((((((((
solve an equation and draw a graph on it
I give 20 points!! please help as soon as possible(
1) Define the variable you are using
2) Set up an equation to solve
3) Show all steps of solving the equation
5) Explain what your answer means in terms of the problem.
The number of cupcakes Chad can eat is 2 times the amount his sister can eat. On Chad’s
birthday Chad and his sister ate a total of 12 cupcakes? How many did Chad eat?
The number of cupcakes that Chad are is 8 cupcakes.
What is an equation?A mathematical equation is the statement that illustrates that the variables given. In this case, two or more components are taken into consideration to describe the scenario.
Let the number of cupcakes that Chad can buy be x.
The number of cupcakes Chad can eat is 2 times the amount his sister can eat. This will be 2x.
Therefore, the appropriate equation will be:
2x + x = 12
3x = 12
Divide
x = 12/3
x = 4
Chad = 2x = 2 × 4 = 8 cupcakes
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I'm stuck with this word problem pls helped me
One of the many branches of mathematics is algebra, which is derived from the Arabic word al-jabr, which means "reunion of fractured pieces, bonesetting."Algebra, which is a common thread throughout practically all of mathematics, is broadly defined as the study of mathematical symbols and the rules for manipulating these symbols in formulas.
Solve the problem?
The world's best mathematicians have been baffled by a mathematical problem for decades.The Diophantine equation x3+y3+z3=k, where k is the sum of all the numbers from 1 to 100, is also referred to as the "sum of three cubes. The following will teach you how to identify the problem before moving on to any of the other four steps in the five-step process for solving algebraic problems.Determine the issue.Describe your knowledge.Plan beforehand.Execute the plan.Check to see if the response makes sense.
16x+12y=744
= 16x+12y=744
16x= 744-12y
divide both sides by 16
16x/16=744-12y/16
x= 744-12y/16
744-12y by 16
x =-3y/4+93/2
solving y
16x+12y=744
12y =744-16x
divide by 12
12y/12 =744-16x/12
y= 744-16x/12
y=-4x/3+62
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3x-1 times 3=5 times x+1
Find x
Answer:
x = -2
Step-by-step explanation:
3x - 1 × 3 = 5 × x + 1
3x - 3 = 5x + 1
3x - 5x = 1 + 3
-2x = 4
-2x/-2 = 4/-2
x = -2
Which number sentence is true? A. |10| < 1.0 B. |0| = 0 C. |-47| < |-30| D. |-100| < |0|
The second option (B) that is I0I = 0 is true.
This is a question of modulus.
Let us check all the options to find which one is true.
Let us check for A.
A. I10I < 0
We know that,
I10I = 10 > 0
Hence, this option is false.
Let us check for B.
B. I0I < 0
We know that,
I0I = 0 = 0
Hence, this option is true.
C. I-47I < I-30I
We know that,
I-47I = 47 and I-30I = 30
47 > 30
Hence,
I-47I > I-30I
Hence, this option is false.
D. I-100I < I0I
We know that,
I-100I = 100 and I0I = 0
100 >0
Hence,
I-100I > I0I
Hence, this option is false.
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Please fully explain how to answer number 5 Thank you
Given: A right triangle with dimensions as shown in the figure
To Determine: The ratio for sin A and cos A
Solution
Given a right triangle ABC with a reference angle A, the trigonometry ratio is
[tex]\begin{gathered} sinA=\frac{opposite}{hypothenuse} \\ cosA=\frac{adjacent}{hypothenuse} \\ tanA=\frac{opposite}{adjacent} \end{gathered}[/tex]From the given right triangle with reference angle A, the hypothenuse is the side facing the right angle. The side facing angle A is the opposite, and the other side is adjacent. This is as shown below
Hence
[tex]\begin{gathered} sinA=\frac{24}{26} \\ cosA=\frac{10}{26} \end{gathered}[/tex]OPTION A is the correct option
2 What is the slope of the line in the picture below?
Explanation
if you know 2 points of a line you can easily find the slope using
[tex]\begin{gathered} \text{slope}=\frac{\Delta y}{\Delta x}=\frac{y_2-y_1}{x_2-x_1} \\ \text{where} \\ P1(x_1,y_1) \\ P2(x_2,y_2) \end{gathered}[/tex]Let
P1(-1,5)
P2(7,1)
replace,
[tex]\begin{gathered} \text{slope}=\frac{\Delta y}{\Delta x}=\frac{y_2-y_1}{x_2-x_1} \\ \text{slope}=\frac{1-5}{7-(-1)} \\ \text{slope}=\frac{-4}{7+1}=-\frac{4}{8}=-\frac{1}{2} \\ \text{slope}=-\frac{1}{2} \end{gathered}[/tex]I hope this helps you
I need help with number 12. you have to spligy the expression and the answer will reveal a letter
8+9x+4(11-2x)
As a first step we are going to use distributive property of multiplication:
8+9x+44-8x
Solving ths:
52+x
Answer would be M
How many ways are there to split 12 people into 4 groups with 3 people in each group?
1. Jack buys small tins of tomatoes every week. They usually cost 50¢ each. Last week,
however, Jack saw that the shop was selling six large tins of tomatoes plus a bag of
pasta for $7.50. He worked out that the pasta was normally $2. Jack decided that he
could use one large tin of tomatoes instead of two small tins so he bought 18 large tins
of tomatoes together with three bags of pasta.
This week, however, the small tins of tomatoes are on offer at $1.60 for a pack of four.
How much more did Jack pay last week for tinned tomatoes than if he had bought them
this week?
Answer is in what unit?
Jack paid $ 2.10 more than last week for tinned tomatoes.
The answer is in dollars.
Given that:-
Price of small tomato tins = 50 cents
Price of pasta packet = $ 2
Price of large tomato tins = 2*50 cents = $ 1
Total price of 6 large tins and a pasta packet = $ 7.50
Price of 4 small tins of tomatoes this week = $ 1.60
Price paid by Jack last week for 18 large tins and 3 pasta packets = 7.50*3 = $ 22.50
Price of 18 large tins = 22.50 - 2*3 = 22.50 - 6 = $ 16.50
As 18 large tins equals 36 small tins, we can write,
Price Jack would have paid this week = 36*1.60/4 = $ 14.40
The amount Jack paid more for tinned tomatoes = 16.50 - 14.40 = $ 2.10
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What is the equation of the line that passes through the point (-6,-3) and has a slope of 0?
Finding a final amount in a word problem on expA certain forest covers an area of 2600 km². Suppose thaUse the calculator provided and round your answer to the2.kmХ?
Since the area decreases the same percent each year, we will use the exponential function of decay to solve the question
[tex]f(x)=ab^x^{}[/tex]Where:
a is the initial value
b is the factor of decay
y is the new value
x is the time
[tex]\because a=2600km^2[/tex][tex]\because b=1-\frac{7}{100}=0.93[/tex][tex]\because x=7years[/tex][tex]y=2600(0.93)^7[/tex]Let us find the answer using the calculator
[tex]y=1564.422264km^2[/tex]Round it to the nearest square km means a nearest whole number
y = 1564 km^2
The final amount is 1564 square kilometers
I’d appreciate the help this is my last few questions and this will save my grade since the first trimester of my school is done this week so I appreciate help
Answer:
260.52cm^
Step-by-step explanation:
Use square roots to solve the equation x2 = –64 over the complex .numbers. Select any solutions that apply.
an 8i
b -8
c -8i^2
d -8i
[tex]x^2=-64\implies x=\sqrt{-64}\implies x=\sqrt{-1\cdot 64}\implies x=\sqrt{-1}\cdot \sqrt{64} \\\\\\ x=\sqrt{-1}\cdot 8\implies x=i\cdot 8\implies x=8i[/tex]