Answer:
Infinite
Step-by-step explanation:
Here are a system of how two equations can be classified ;
• If the gradients are the same but the y-intercepts are different, the system has no solution.
• If the gradients are different, the system has one solution.
• If the gradients are the same and the y-intercepts are the same, the system has infinitely many solutions.
Here is the proof.
3y - 9x = -6
5y - 15x = -10
In
3y - 9x = -6
When x =1
y= 1
When x=3
y= 7
Gradient of 3y - 9x = -6
=∆y/∆x
= (7-1)/ ( 3-1)
=(6)÷ 2
= 3
5y - 15x = -10
When x= 1
y = 1
When x=3
Y=7
Gradient of 5y - 15x = -10
=∆y/∆x
= (7-1)/ ( 3-1)
=(6)÷ 2
= 3
Since the gradients are the same the system has infinitely many solutions.
A bag contains 28 marbles: 9 black, 14 red, and 5 blue. A marble is drawn from the bag at random.
What is the probability of getting a red or blue marble? Write answer as SIMPLIFIED FRACTION.
ASAP
Answer:
steps
1) 14/28 to convert to a percent you have to first divide the numerator from the demoninator and then you multiply by 100 and you get get %50 (you could had known bc 14 is half of 28)
2) 5/28 do the same thing as the first step and get %17.85
-Feel free to ask for more help :)
I will mark brainliest but I am in a hurry
What is the solution to the equation x/6 =4/12?
x = 1
x = 2
x = 4
x = 6
Answer:
X=2
Step-by-step explanation:
12 divided by 6 is two, cut 4 in half it's 2
What fraction makes the equation true?
Enter the answer in the boxes.
5/6x =20/24
Answer:
x=1
Step-by-step explanation:
To find the value of x, we have to move all the real numbers to the other side.
5/6x = 20/24
We have divide each side by 5/6. Once we do that, we get—
x = 4/4
x = 1
Select the correct answer.
Which statement describes the situation shown in the graph?
Answer:
there is no photo??where are the graphs??
A study shows that, over the course of a lifetime, the average salary of college graduates is greater than the average salary of people with only a high school diploma. The results were published claiming that graduating from college ensures you will make more money over the course of your lifetime. What is the problem with reporting results this way?
loaded question
correlation and causality
voluntary response
missing data
Answer:
The problem with reporting this result is:
Missing data.
Step-by-step explanation:
The reason behind this answer is: first of all a loaded question has a bias, the question in our case is arbitrary because it doesn't suggest an inclination of perspective. The correlation between studies and salaries also is not wrong, it is well developed. Therefore, the casualty is well developed. There is no voluntary response because it was not a questionnaire that could have been manipulated. We could have obtained the data from the government database. However, that is what we are lacking. We have no statistics, no source, no institution mentioned, we have missing data.
I have Monday done
I'm in the middle of something really important and I don´t have time to do this if you anyone do 1 or two problems for me thanks!!
Answer:
Wednesday, #3 : 8x + 54
Step-by-step explanation:
First, sorry this the one I really knew fast.
-2 (-6x -9) -4x (x + 9)
12x + 18 - 4x + 36
8x + 54
Answer:
Tuesday, 1: 30 pounds
Tuesday, 2: 40% of the apples
Tuesday, 3: x ( or any variable) + 8
Tuesday, 4: 9a-3b
Step-by-step explanation:
Since she weighs 38% of the normal weight, you multiply the decimal form to the original weight, which is 78. So .38 multiplied by 78 is 29.64, and rounding it to the nearest pound would make it go up to 30.
38%=.38
.38 x 78=29.64
29.64 rounded = 30
If 3/5 of the apples are ripe, that means that 2/5 are not. An easy way to turn this fraction into a percent is to make the number out of 100. Since 5 x 20 is 100, you multiple both the numerator and denominator by 20. 2 x 20 is 40, 5 x 20 is 100, hence 40/100. The numerator will be the percentage.
5/5-3/5 = 2/5
2/5 x 20/20 = 40/100
40/100 = 40%
The unknown score would become a variable, and since its increasing by 3 it is +8.
Since the perimeter is adding all sides, you'd add all of the equations. The 3a's times 3 would be 9a, and the -b would become -3b.
3a - b + 3a - b + 3a - b
9a - b - b - b
9a - 3b
PLEAS HELP
At a car dealership, the sales records of weekdays and weekends were examined. Ten of the days examined were weekdays and 10 of them were weekend days. The following statistical information was calculated from the number of sales made during weekdays and weekends.
Weekday
Sales Weekend
Sales
Mean 15 18
Median 13 19
Mode 14 21
Range 10 13
Based on these samples, what generalization can be made?
A.
Not enough information is provided to draw any of these conclusions.
B.
More cars were sold on the weekdays than on the weekends.
C.
The same number of cars were sold on the weekends as on the weekdays.
D.
Less cars were sold on the weekdays than on the weekends.
Answer:
I believe it to be D
Step-by-step explanation:
PLEASE HALP!!!!
Carlos wants to get an average of 86% in his science class. The science
teacher has given 5 tests. Carlos's scores on 4 of the tests have been 85%,
89%, 90%, and 82%. What score does Carlos need to get on the 5th test to
get a mean score of 86%?
O A) 81
OB) 84
OC) 86
OD) 92
Answer:
The answer is B
Step-by-step explanation:
Answer:
B. 84
(85+89+90+82+x)/5=86
so x=84
Bye how much more coffe is in the dads mug
Write the equation of the circle P graphed below.
Find the missing length of the traingle. A=65 and B = 72 then C = ?
(10 Points)
Answer:
43
Step-by-step explanation:
65+72=137
180-137=43
Answer:
43
65+72=137
180-137=43
Step-by-step explanation:
HII PLEE SEE HELPP ME
Answer:
45.58ft2
Step-by-step explanation:
SA= bottom triangle + 3 top triangles
Answer:
45.58ft2
Step-by-step explanation:
SA= bottom triangle + 3 top triangles
the function f(x) has been transformed which of the following functions represents g(x)
Answer:
could you show the graph a little more/ thanks :)
Step-by-step explanation:
What is the probability of spinning a 2 both times?
Answer:
the posbilities is an hour
Step-by-step explanation:
30 + 30 mins = 1 hour
What type of function is represented?
Answer:
b
Step-by-step explanation:
ITS B NOT C ITS B ITS B ITS B.
A circle has a radius of 5/3 units and is centered at (9.2 -7.4)
Write the equation of the Circle.
Answer:
(x - 9.2)^2 + (y + 7.4)^2 = (5/3)^2
Step-by-step explanation:
We start with (x - h)^2 + (y - k)^2 = r^2. The center is (h, k) and the radius is r.
Then we have:
(x - 9.2)^2 + (y + 7.4)^2 = (5/3)^2
A box of crayons contains 64 crayons. Which equation can be used to find the number of total crayons, c, in b boxes of crayons?
A. b = c (64)
B. b = c + 64
C. c = b٠64
D. c = b + 64
Im pretty sure you already know the total amount of crayons but the answer is C
Answer:
a
Step-by-step explanation:
because 1 c =1b so if u did however many boxes you wanted you would do the same amount of cs groups of 64 crayons
need asap........!!!!!!!
Answer:
45
Step-by-step explanation: 180-90=90
90/2=45
Answer:
x= 45
Step-by-step explanation:
There are 180 degrees in a triangle
The box in the corner is 90
180-90 = 90
There are 90 degrees left
The lines means that the two sides are equal so the angles must be equal
The two angles are x and x
x+x = 90
2x=90
Divide by 2
2x/2 = 90/2
x = 45
help me please thanks you
Answer:
radius = 1/2 of a diameter = 9 cm
diameter = circumference = 18 cm
omg please help!!!!! And fast if you can
Answer:
The square root of 10 is 3.16227766017
Step-by-step explanation:
PLEASE HELP MEE
Three lines meet at a point that is also the endpoint of a ray. In complete sentences, describe the relevant angle relationships in the diagram. Find the value of each variable in the diagram.
Answer:
I'm only going to find the value of each variable
Step-by-step explanation:
V,Z,W,Y=39
X=94
Sorry, I didn't know how to explain the relevant angle relationships. '-' :(
add or subtract (7x^2-x-2)-(-6x^3+3)
Answer:
[tex] \tt{}6x ^{3} + {7x}^{2} - x - 5[/tex]
Step-by-step explanation:
[tex] \tt{}(7 {x}^{2} - x - 2) - ( - 6 {x}^{3} + 3)[/tex]
[tex] \tt{}7 {x}^{2} - x - 2 + 6x^{3} - 3[/tex]
[tex] \tt{} {7x}^{2} - x - 5 + 6x ^{3} [/tex]
[tex] \tt{}6x ^{3} + {7x}^{2} - x - 5[/tex]
Answer:
[tex]6 {x}^{3} + 7 {x}^{2} - x - 5[/tex]
Step-by-step explanation:
[tex](7 {x}^{2} - x - 2) - ( - 6 {x}^{3} + 3)[/tex]
➡️ [tex]7 {x}^{2} - 2 - ( - {6}^{3} + 3)[/tex]
➡️ [tex]7 {x}^{2} - x - 2 + 6 {x}^{3} - 3[/tex]
-2 - 3-(2 + 3)-5➡️ [tex]7 {x}^{2} - x - 5 + 6 {x}^{3} [/tex]
➡️ [tex]6 {x}^{3} + 7 {x}^{2} - x - 5[/tex] ✅
A bus took 1 hour and 30 minutes. How many minutes is that?
Answer: 90 mins
Step-by-step explanation:
1hr=60 mins+ 30 mins
Answer:
90 minutes.
Step-by-step explanation:
Conversion ratio of hours to minutes:
1 hour = 60 minutes.
Add the two numbers together:
60 minutes + 30 minutes = 90 minutes.
90 minutes is your answer.
~
Use the law of sines to find the length of side c.
C
be
41.59
37
42°
А
С
CD
O A. 36.64
B. 54.94
C. 37
37 36
Without the calculator let's just estimate that .5/42 = 1.2% change in the angle; we reduce the length a=37 by 1.2% to get 37×.988=36.556. That's probably good enough to choose A.
Let's do it the way they want.
[tex]\dfrac{\sin C}{c} = \dfrac{\sin A}{a}[/tex]
[tex]c = \dfrac{a \sin C}{\sin A} = \dfrac{37 \sin 41.5}{\sin 42} = 36.6400[/tex]
Answer: A
Estimate worked. Sine is approximately linear when the range is small enough.
This recipe will serve 12 pancakes.
Find out how much of each ingredient you would need for 24 pancakes.
Find out how much of each ingredient you would need for 6 pancakes.
Ingredient
12 pancakes
24 pancakes
6 pancakes
4
Eggs
11 tsp
Flour
tsp
Baking Powder
Please help!! 40 points!
If k=...then what is-k?
The value of the matrix -k in the expression is [tex]\left[\begin{array}{ccc}2&-9&8\\-7&-11&-6\\-4&-4&3\end{array}\right][/tex]
How to evaluate the expression?The matrix is given as:
[tex]k = \left[\begin{array}{ccc}-2&9&-8\\7&11&6\\4&4&-3\end{array}\right][/tex]
Multiply both sides by -1
[tex]-1 * k = -1 * \left[\begin{array}{ccc}-2&9&-8\\7&11&6\\4&4&-3\end{array}\right][/tex]
Evaluate the right hand side
[tex]-1 * k = \left[\begin{array}{ccc}2&-9&8\\-7&-11&-6\\-4&-4&3\end{array}\right][/tex]
Evaluate the left hand side
[tex]-k = \left[\begin{array}{ccc}2&-9&8\\-7&-11&-6\\-4&-4&3\end{array}\right][/tex]
Hence, the value of -k in the expression is [tex]\left[\begin{array}{ccc}2&-9&8\\-7&-11&-6\\-4&-4&3\end{array}\right][/tex]
Read more about matrix at:
https://brainly.com/question/1821869
#SPJ2
help me plz now i would like it and vote for it if right
Answer:
4
Step-by-step explanation:
2^4 - (2^3 +2^2)
Exponents
16 - (8+4)
Parentheses
16 - (12)
Subtract
4
The loudness, L. measured in decibels (Db), of a sound intensity, I, measured in watts per square meter, is defined as
L - 10log , where lo - 10- and is the least intense sound a human ear can hear. Jessica is listening to soft music at a
sound intensity level of 109 on her computer while she does her homework. Braylee is completing her homework while
listening to very loud music at a sound intensity level of 10 on her headphones. How many times louder is Braylee's music
than Jessica's?
Answer:
Option A is correct.
Braylee's music is 3 times louder than Jessica's.
Step-by-step explanation:
Full Complete Questions
The loudness, L, measured in decibels (Db), of a sound intensity, I, measured in watts per square meter, is defined as
L = 10log (I/I₀), where lo = 10⁻¹² W/m²
and is the least intense sound a human ear can hear.
Jessica is listening to soft music at a sound intensity level of 10⁻⁹ W/m² on her computer while she does her homework.
Braylee is completing her homework while listening to very loud music at a sound intensity level of 10⁻³ W/m² on her headphones. How many times louder is Braylee’s music than Jessica’s?
times louder
3 times louder
30 times louder
90 times louder
Solution
The loudness of a sound intensity is given as
L = 10 log (I/I₀)
For Jessica
I = 10⁻⁹ W/m²
I₀ = 10⁻¹² W/m²
L = 10 log (10⁻⁹/10⁻¹²)
L = 10 log (10³)
L = 10 × 3 = 30 dB
For Braylee
I = 10⁻³ W/m²
I₀ = 10⁻¹² W/m²
L = 10 log (10⁻³/10⁻¹²)
L = 10 log (10⁹)
L = 10 × 9 = 90 dB
How many times louder is Braylee's music than Jessica's?
The factor by which Braylee's music is louder than Jessica's = (90/30) = 3
Braylee's music is 3 times louder than Jessica's.
Hope this Helps!!!
Answer:
3 times louder
Step-by-step explanation:
7)
Which expression is a SUM?
5(2 + 3)
8 x (6 + 3)
5(2) + 2(6 - 3)
(5 + 2) = (2 + 3)
Answer:
The answer is c.) 5(2)+2(6-3)
Step-by-step explanation:
This is an addition problem, because you are solving for the multiplied numbers added together.
5(2)+ 2(6-3)
10+(12-6)
10+6
= 16 I hope this help :)
PLEASE HELP ON THIS QUESTION! I WILL MARK YOU BRAINLIEST IF CORRECT :) TYY
Answer:
S (3,2) T (2,4) U(1,1)
Step-by-step explanation:
You flip it over the vertical line. The Y coordinate stays the same but the X changes so it's the opposite.
