Answer:
4 and 5
Step-by-step explanation:
The solution of the numbers 4 and 5 that gives multiplied by 20 and adds up to 9.
Used the concept of the equation that states,
An equation is a group of numerical variables and functions that have been combined using operations like addition, subtraction, multiplication, and division.
Given that,
The multiplication of two numbers is 20.
And, the addition of both numbers is 9.
Let us assume that the numbers are x and y.
Hence the equation for the given conditions,
[tex]x \times y = 20[/tex] ... (i)
[tex]x + y = 9[/tex] ... (ii)
From (ii);
[tex]x = 9 - y[/tex]
Substitute in (i);
[tex](9 - y) \times y = 20[/tex]
[tex]9y - y^2 = 20[/tex]
[tex]y^2 - 9y + 20 = 0[/tex]
[tex]y^2 - (5 + 4)y + 20 = 0[/tex]
[tex]y^2 - 5y - 4y + 20 = 0[/tex]
[tex]y (y - 5) - 4 (y - 5) = 0[/tex]
[tex](y - 5) (y - 4) = 0\\[/tex]
This gives,
[tex]y = 5\\y = 4[/tex]
From (i);
Substitute y = 5;
[tex]x = 9 - 5\\x = 4[/tex]
Substitute y = 4;
[tex]x = 9 - 4\\x = 5[/tex]
Therefore, the numbers are 5 and 4.
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12x−5y=−20 y=x+4 x=x=x, equals y=y=y, equals
Answer:
The solution is (0, 4)
Step-by-step explanation:
Please pay attention to the first two equations and drop the last two:
12x−5y=−20 y=x+4 x=x=x, equals y=y=y should ideally be:
12x−5y=−20
y=x+4
Let's find x. Substitute x + 4 for y in the first equation, obtaining:
12x - 5(x + 4) = -20
Carrying out the indicated multiplication, we get:
12x - 5x - 20 = -20, or 7x = 0
If x = 0 then y must be 0 + 4, or 4.
The solution is (0, 4)
Answer:x=0 y=4
Step-by-step explanation: khan
Answer PLEASEE (brainlist)
Answer:
what you just answered
Step-by-step explanation:
2(5) + 3 = 13 so (5,1) is not
Answer:
D is the correct answer.
Step-by-step explanation:
1 times 2 is 2 plus 3 is 5, so its not A
2 times 2 is 4 plus 3 is 7 so its not B
and 3 times 2 is 6 plus 3 is 9 so it cant be C either
Therefore its D.
David had 20 pencils 5 of them were green and 15 are purple what percentage were green what percentage were purple
Answer:
25% were green
Step-by-step explanation:
Answer:
Percentage of Green Pencils = 100* Green Pencils / Total Pencils
Percentage of Green Pencils = 100* 5/20
Percentage of Green Pencils = 500 / 20
Percentage of Green Pencils = 25%
Step-by-step explanation:
sorry i didnt know the percentage of purple
Which of the following functions best represents the graph?
f(x) = (x − 2)(x + 1)(x + 2)
f(x) = (x − 1)(x + 1)(x − 4)
f(x) = (x + 2)(x − 1)(x − 2)
f(x) = (x + 1)(x − 1)(x + 4)
Answer:
f(x)=(x-2)(x+2)(x-4)
The formula t=\sqrt((h)/(16))represents the time t in seconds that it takes an object to fall from a heigh of h feet. A coin is dropped from a height of 75 feet. To the nearest second, how long did it take the coin to fall?
Answer:
We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defense, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.
On monday , 60% of tue costomers who boight gas at a gas station made additional pirchases there were 25 costomers who bought gas .How many of these costomers made additional purchaces
Answer:
15 customers
Step-by-step explanation:
Given data
Total Number of customers= 25
60% of 25 customers made an additional purchase
Hence the number of customers that made additional purchase is
=60/100*25
=0.6*25
=15customer
Hence 15 customers made additional purchase
Use the distributive property to simplify this expression
-9(n-4)
Answer:
-9n + 36
Step-by-step explanation:
1. -9(n - 4) -Distribute
2. -9n + 36 -Answer
[tex]\huge\fbox{\sf{Answer:~~{\boxed{-9n+36}}}}[/tex]
Step-by-step explanation:
Hi there!
Let's simplify this expression. It's easy, because all we have to do is "distribute" -9:
[tex]\bold{-9(n-4)}[/tex]
[tex]\bold{-9n+36}[/tex]
Hope it helps!
#[tex]\rm{HaveAnAmazingDay:)[/tex]
~ [tex]\sf{Just~a~teenage~girl~willing~to~help[/tex]
[tex]\bold{Besties4Ever:-):-):-)}[/tex]
The scatter plot shows the number of absences in a week for classes of different sizes. Trevor concluded that there is a positive correlation between class size and the number of absences.
image
Which of the following statements BEST describes why Trevor’s conclusion was incorrect?
A.
The data shows a negative relationship between class size and number of absences.
B.
The data shows no relationship between class size and the number of absences.
C.
The largest class does not have the most absences.
D.
The smallest class does not have the least number of absences.
The statement which BEST describes why Trevor’s conclusion was incorrect is B. The data shows no relationship between class size and the number of absences.
What is Scatterplots?Scatterplots are the plotting of set of points on a vertical axis and an horizontal axis. The shows the correlation extent between the numbers of the observed quantities.
Given a scatterplot which shows the number of absences in a week for classes of different sizes.
From the scatterplot, we can see that,
For a class size of 15, there are 2 kind of absences, 2 and 10.
For class size of 20, there is a positive correlation.
Then again it increases and decreases for various sizes.
So there is no relationship in particular with the 2 variables.
Hence the correct option is B.
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Help,No Links or i will report and i will give brainliest to first person who answers
how do write an equation for this hyperbola from the foci?
Answer: Memorize the formula
Step-by-step explanation:
( x / a )^2 - ( y / b )^2 = 1
Where a and b are the semi-axis
The value of a is half the distance from points that cuts off x-axis, in this case
From -5 to 5 there is 10 so 5 is value of "a"
Value of b can find by the formula
c^2 = a^2 + b^2
Which c is the value of the point bold on the rightmost place in x axis. In this case its 13
13^2 = 5^2 + b^2
169 = 25 + b^2
b = 12
SO we got a = 5, b = 12
ANSWER: (x/5)^2 - (y/12)^2 = 1
Pls help with my homework,
5,11,12
10 Please! HELP! very easy! will give brainliest!
20 POINTS!
What is the volume of the container below?
2 rectangular prisms. A rectangular prism has a length of 14 inches, width of 6 inches, and height of 16 inches. A rectangular prism has a length of 10 inches, width of 6 inches, and height of 4 inches.
576 inches cubed
1,080 inches cubed
1,584 inches cubed
1,920 inches cubed
Answer:
1584 in³
Step-by-step explanation:
(14 x 6 x 16) + (10 x 6 x 4) = 1584
Answer:
1,584
Step-by-step explanation:
List the following fractions from least to greatest
Answer:
It would be number 3. 1/7,3/7,4/7,6/7
Step-by-step explanation:
For fractions if the denominator is the same you go to the numerator (the top number) to compare. The bigger the numerator is (like 6) the higher it should go on your list.
Select the correct answer.
As part of a class project, Sarah and Geoffrey conducted a survey asking their peers whether they planned on taking a music class the next year.
of the 90 students they surveyed, 43 responded favorably. Sarah and Geoffrey calculated the margin of error for different confidence intervals.
Their work is shown.
Sarah
Geoffrey
95% confidence:
90% confidence
ME = 1.96
0.48(1 - 0.48)
90
ME = 1.65V
133
Which student incorrectly found the margin of error and why?
A. Sarah incorrectly found the margin of error because she used the wrong critical value.
B. Sarah incorrectly found the margin of error because she used the wrong sample proportion
C. Geoffrey incorrectly found the margin of error because he used the wrong sample size.
D. Geoffrey incorrectly found the margin of error because he used the wrong critical value.
Answer:
Geoffrey incorrectly found the margin of error because he used the wrong sample size.
Please give be brainliest, I really need it.
Geoffrey incorrectly found the margin of error because he used the wrong sample size. Therefore, the correct option is option B.
What is mathematical error?Measurement Error is the difference between the approximated value and the actual value of an object/quantity. The relative error can be computed in the percent with the help of relative error formula. Errors in measuring instruments occur due to inescapable faults in the measuring instrument and limitations of the human eye.
There are three types of errors in solving mathematics problems, which are factual error, procedural error, and computational error. Geoffrey incorrectly found the margin of error because he used the wrong sample size.
Therefore, the correct option is option B.
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What's 1 plus 0
[tex]1 + 1[/tex]
Answer:
0
Step-by-step explanation:
this is the correct answer you want please follow me ol
Pls pls help meh I just need a simple explanation pls I beg I’ll give brainliest I only need #9
Answer:
x ≈ 47°
Step-by-step explanation:
Using the sine ratio in the right triangle
sinx° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{8}{11}[/tex] , then
x = [tex]sin^{-1}[/tex] ([tex]\frac{8}{11}[/tex] ) ≈ 47° ( to the nearest degree )
Identify the line segment that is a radius.
Answer:
The line segment that is a radius is FD.
Hope it will help:)❤
the slope of the line below is -3. use the coordinates of the labeled point to find a point-slope equation of the line (5,-7)
a. y-7=3(x+5)
b. y-7=-3(x+5)
c. y+7=-3(x-5)
d. y+7=3(x-5)
Answer: C. y+7=-3(x-5)
PLEASE HELP FAST!!
Write the equation of a line through the points (-1, 3) and (2, -5). (Write in Slope-Intercept form) (Hint: calculate the slope first.)
Answer:
The slope is -8/3
Step-by-step explanation:
Answer:
This answer is A
Step-by-step explanation:
i got you bro, im quick
Find four arithmetic means between -8 and 17.
Answer:
four arithmetic means between 17 and 37 is:
21,25,29,33
Step-by-step explanation:
Diego is selling raffle tickets for $1.75 per ticket.
Complete the table to show how much money he would earn if he sold each number of tickets.
Answer:
1.75(x)
Step-by-step explanation:
you can make an algebraic expression to make this simpler. if x = the number of tickets. then, you want to create the expression. it will be .... 1.75(x).
you plug whatever number you need for the table in as x. for example, if you want to see how much money diego would make for 6 tickets you write 1.75*6
PLEASE ANSWER QUICKLY I WILL LOVEEE YOU FORREVERRRRRR
Mrs. Robinson surveyed her class about what flavor cake and ice cream they wanted for their class party. The results were split evenly between the cake with 15 choosing chocolate cake and 15 choosing yellow cake. Of the students who chose chocolate cake, 12 also chose vanilla ice cream. There were 7 students in all that chose strawberry ice cream. Construct a two -way table summarizing the data
Answer:
Answer would be 12
Step-by-step explanation:
i'm not always accurate but your welcome!
Julio runs 4 miles each time that he goes running. If he goes running 7 times a week, how many miles does he run total in one week?
Answer:
He runs 28 Miles every week!
Step-by-step explanation:
(The week is 7 days long)
1st DAY = 4M
2nd DAY = 4M
3rd DAY = 4M
4th DAY = 4M
5th DAY = 4M
6th DAY = 4M
7th DAY = 4M
(The M next to the 4 means miles you don't have to include it in your answer on your homework!)
4 + 4 + 4 + 4 + 4 + 4 + 4 = 28
OR
4 x 7 = 28
~ LadyBrain
PLEASE HELP IM REALLY FAILING
Step-by-step explanation:
1. the depth is what makes this a three-dimensional figure since there are three dimensions length width and depth all three of these dimensions are used to find the volume of a rectangular prism
2. L×w×h
A rectangle has a length of 2x+3 and a width of 10x-4. Find the perimeter and area of the figure
Step-by-step explanation:
perimeter is 4x+6 +20x-8=20x-2
area is 20x^2+22x-12
Trains Two trains. Train A and Train weigh a total of 387 tons. Train Ais heavier than Trains. The
difference of their weights is 189 tons. What is the weight of each train?
Train A weighs
tons
Answer: the other train shoud weigh 198 hope it helps
Step-by-step explanation:
Answer:
train A=198
train B=189
❤️❤️Помогите❤️❤️!!!!
Answer:
i dont understand russian
Step-by-step explanation:
Solve for x. Round answer to the nearest tenth
Answer:
Hiiiii ,i neeeeeed your help :
b) Match the lines from the song with the corresponding events and dates in American history.
Thaaaaaaaaanks you veryyyyyy veryyyyy muuuuuuuch
Umm ... NO FILES/LINKS !!!
Answer:
whats ur question lol
Step-by-step explanation:
Answer:
ok fine but you'll have to visit the nobotsite.com lol jk its not real
Step-by-step explanation:
