Answer:
x=20/3 y=17/3
Step-by-step explanation:
1. x-y=1
2. 2x+y=19
The first equation can be rewritten as 2x-2y=2
We can then subtract the second equation from this:
2x-2y=2
2x+y=19
-3y=-17
y=17/3
Plug this into to solve for x:
x-17/3=1
x=17/3+1
x=20/3
Solve |P| > 3
{-3, 3}
{P|-3 3}
Point :
[tex] |x| > a[/tex]
[tex]x > a \: \: \: and \: \: \: x < - a[/tex]
_________________________________
Thus ;
[tex]P > 3 \: \: \: \: \: and \: \: \: \: \: P < - 3[/tex]
Done.....♥️♥️♥️♥️♥️
The Lake of Distress is contaminated with flesh-eating bacteria!! The lake started with only
4 square feet infected, but as time has gone on, the bacteria are growing by a factor of 3
every hour. Assume that the relationship between hours and square feet of bacteria is
continuous.
What is the domain of the function in set notation?
Given:
The lake started with only 4 square feet infected.
The bacteria are growing by a factor of 3 every hour.
To find:
The domain for this situation.
Solution:
Initial value = 4 square feet
Growth factor = 3
Using exponential growth model, we get
[tex]y=ab^t[/tex]
where, a is initial value and b is growth factor.
So, square feet of bacteria after t hours is
[tex]y=4(3)^t[/tex]
Here, domain is set of values of time and range is square feet of bacteria.
Above equation is defined for all values of t but we know that, time cannot be negative.
As the relationship between hours and square feet of bacteria is continuous, therefore the value of t can be any real number greater than or equal to 0.
[tex]Domain=\{t|t\in R\text{ and }t\geq 0\}[/tex].
Therefore, the domain is [tex]\{t|t\in R\text{ and }t\geq 0\}[/tex].
A type of fish for your aquarium costs $4 each. You can spend at most $36. How many of these fish
can you buy?
Answer:
9 fish
Step-by-step explanation:
You can buy 9 fish to achieve a total amount of $36 .
what is 8+4*5+5-9+2+45-12+95463/8+34/2=?
Answer:
12008.875
Step-by-step explanation:
five less than twice a number is greater than ten times a number
Answer:
2x - 5 > 10x
Step-by-step explanation:
Hope This Helps!
Plz mark Brainliest!
A rectangle is graphed on the coordinate grid.
Which represents the equation of a side that is perpendicular to side r?
y = negative x + 5
y = negative x + 3
y = x minus 3
y = x + 3
Answer:
y = x + 3
Step-by-step explanation:
got it right on e2020
Answer:
The 4th option is correct
Step-by-step explanation:
Edge 2020
I don’t know how to solve it please help
Answer:
when x=0 then f(x) = -2
when x=1 then f(x) = 3
when x=2 then f(x) = 8
Step-by-step explanation:
you just plug in the x value given to you into the equation (which is 5x-2) so for example:
if x = 0 then:
5x-2 is instead 5(0)-2 which means you multiply 5 and 0 and then substract 2 because you have to follow PEMDAS
PEMDAS is (Parenthesis, Exponents, Multiplication, Division, Addition, Substraction) which is the order of priority to be solved, so you first solve parenthesis, then exponents, then you multiply or divide, and then you add or substract
easy way to remember PEMDAS: Please Excuse My Dear Aunt Sally, OR Please End My Depression And Suffering (my favorite way to remember, don't take that seriously tho >_>)
so because you have to multiply before subtracting you multiply 5 and 0, you get 0, and then you take away 2 which is -2
remember to just plug in your values and then do PEMDAS
hope you learned something :P
3(x − 2y) = −12(x + 2y)
Answer:
15x-18y
Step-by-step explanation:
Distribute then combine like terms
What is the mean? 20,22,25,28,29,30,32,33,34 ( Show work )
Answer:
28 or 28.11111 because I don't know if it asked you to round or not.
Step-by-step explanation:
Mean is the average of a group of number added together and divided by the number of number there are.
20+22+25+28+29+30+32+33+34 = 253
Now we will divide by the number of numbers we have there are 9 numbers.
Soooo.
253/9= 28.1111111
(Round)
28
Answer:
28 1/9 or 28.1111... (0.1 repeating)
Step-by-step explanation:
20 + 22 = 42
42 + 25 = 67
67 + 28 = 95
95 + 29 = 124
124 + 30 = 154
154 + 32 = 186
186 + 33 = 219
219 + 34 = 253
253 / 9 = 28 1/9 or 28.11111...
Hope this helped!
Click and Answer... plz.. Oreos.
Red Riding Hood drives the 432 miles to Grandmother's house in 1 hour less than it takes the Wolf to drive the same
route. Her average speed is 6 mph faster than the Wolf's average speed. How fast does Red Riding Hood drive?
a. 48 mph
c. 50 mph
b. 54 mph
d. 45 mph
Answer:
The answer is B- 54 mph
Step-by-step explanation:
Edge
Answer:
B 54mph
Step-by-step explanation:
took the test and got it correct
my teacher says theres 3 correct answers
The volume of a rectangle or prism with the length of X meters and a width of X -1 m and a height of X +11Meters is no more than 180 m³ what are the possible values of the length
Answer:(1,4)
Step-by-step explanation:
URGENT URGENT URGENT URGENT URGENT
The measure of two angles are (2x + 12)o and (5x − 9)o.
What is the value of x if these angles are congruent?
please dont answer if you dont know the answer
Answer:
x=7
Step-by-step explanation:
To set up for this answer, we need to set it up as an equation: 2x+12=5x-9.
get the xs on one side and the whole numbers on the other.
that leaves you with 21=3x.
divide by 3 on both sides to get the answer of x=7
I think the value of x for these two angles is 7
Help needed ASAP will give brainliest and 5 stars rate :)
Answer:
30km/h
Step-by-step explanation:
takes 4 hours to go 120km so 120/4=30 so they travel 30 km in one hour
A square-shaped dining hall has an area of 625 feet2. Find the length of the dining hall.
Answer:
length= 625feet²/2
if u need explanation call my number
I can teach u everything on maths and physics
my no. :09013273813
Please explain how you got the answer. Will mark Brainliest if correct.
A:-56
B:56
C:-48
D:48
Answer:
Hi there!
Your answer is:
A: -56
Step-by-step explanation:
-14=1/4 X
Solve for x!
Multiply both sides by the inverse of 1/4, which is 4! (1/4*4=1)
-14=1/4x
*4 *4
-56 = 1x
ALSO! Check your work!
-14= 1/4(-56) ??????
-14 = -14 YES
Your answer is A: -56
-14=1/4 X
Multiply both sides with the inverse of one over four (1/4*4=1)
-14=1/4x
*4 *4
-56 = 1x
What type of number is - v 81?
Answer:
rational
Step-by-step explanation:
Tom and Jerry have to stuff and seal 63 envelopes for a new marketing
campaign. Jerry can stuff and seal 15 envelopes alone in 2 minutes. Tom can do 3
envelopes per minute.
5a) Enter the equation that can be used to find the number of minutes, t, it takes
Tom and Jerry to stuff and seal 63 envelopes."
5b) Enter the number of minutes t, it takes Tom and Jerry to stuff and seal 63 envelopes together.
Answer:
T=15x+3y
Step-by-step explanation:
answer this please please
Answer:
B = 3
Step-by-step explanation:
The answer has to be 3 because this is a 3-4-5 triangle. We can also you the Pythagorean theorem to solve for B.
a²+b²=c²
(4)²+b²=(5)²
16+b²=25
b²=9
√b=√9
b=3
Describe one possible transformation the girls performed on the table in order for it to be in its new location.
Step-by-step explanation:
Where is the table at ???
Please help I don’t understand this. I suck at this. (Worth 15 points)
Answer:
0.00068
Step-by-step explanation:
By "hm" I think you mean hectometer, and 6.8 cm converted to hectometer is 0.00068. Hope this helped!
Answer:
6.8 cm is equal to 0.00068 hm
Step-by-step explanation:
Hope this helps!
plssssss help
O 5 units
O 10 units
O 9 units
O 13 units
Write a recursive rule for the sequence 4,10,16,22
Answer:
[tex]a_{n+1}[/tex] = [tex]a_{n}[/tex] + 6
Step-by-step explanation:
The terms have a common difference d between consecutive terms, that is
10 - 4 = 16 - 10 = 22 - 16 = 6
To obtain the next term add 6 to the previous term ( recursive rule ), thus
[tex]a_{n+1}[/tex] = [tex]a_{n}[/tex] + 6 with a₁ = 4
Simplify the expression. 1.7 – 2.7 – 1.34 + 4.9 – 1.48
please explain I'm lost
Answer:
Step-by-step explanation:
1.7 - 2.7 - 1.34 + 4.9 - 1.48
First we can group the positive and negative numbers
1.7 + 4.9 - 2.7 - 1.34 - 1.48
add the positive numbers then add the negative numbers
1.7 + 4.9 becomes 6.6
-2.7 - 1.34 - 1.48 becomes - 5.52
Now add both the answers
6.6 + (- 5.52) = 1.08
Hope this helps
Plz mark as brainliest!!!!!!!!
Chase is deciding between two parking garages. Garage A charges an initial fee of $8
to park plus $4 per hour. Garage B charges an initial fee of $12 to park plus $2 per
hour. Let A represent the amount Garage A would charge if Chase parks for t hours,
and let B represent the amount Garage B would charge if Chase parks for t hours.
Write an equation for each situation, in terms of t, and determine the hours parked,
t, that would make the cost of each garage the same.
A=
B
Answer:
Answer:
A: 8+4t. B:12+2t
Step-by-step explanation:
It would take 2 hours for them to equal each other
Answer: A=4t+12 B=5t=8 Answer: 4hours
Step-by-step explanation:
The probabilty of it raining on a given day is 3/8 what is the probabilty of it not raining?
Answer:
5/8
Step-by-step explanation:
If 3/8 IS raining, then the remaining 8ths is NOT raining. 8 - 3 = 5. So, 5/8 is NOT raining.
I hope this helps!
Answer:
5/8
Step-by-step explanation:
To find the probability of it not raining, subtract 3/8 from 1.
1 - 3/8
= 5/8
Since the probability of it raining is 3/8, this must mean that during the rest of the time, it will not rain.
So, the probability of it not raining is 5/8
Give the domain and range.
The domain is:
The range is:
Answer:
Domain: (-4,4)
Range: (-4,6)
Step-by-step explanation:
Domain is found by viewing the distance from the points on the x-axis (left to right)
Range is found by viewing the distance from the points on the y-axis (up and down)
For domain, the furthest point on the left is (-4,3). You have to take the x from that furthest to the left point (which is -4) to get the first x in the domain (x,y). The furthest point to the right is (4,6). The x on that furthest point is 4. Put them together in the (x,y) form with the furthest left being x and the furthest right being y. That makes the domain (-4,4).
Same goes for range but instead of it being left to right it will be down and up.
Highest point is (4,6)
Lowest point is (0,-4)
Take the y from each one and put them in (x,y) form, this would make your range (6,-4).
Always put the lowest one first (bottom to top)
Always put the furthest to the left first (left to right)
The (x,y) point for either domain or range will always be (lowest value, highest value). In other words, (lowest number, highest number).
Matthew and Jayden own competing taxicab companies. Both cab companies charge a one-time pickup fee for every ride, as well as a charge for each mile traveled. The equation y = 1.32 + 2 represents what Matthew's company charges. Jayden charges a $2.50 pickup fee and $2.40 per mile. Use the dropdown menu and answer-blank below to form a true statement. less Matthew's company charges $ per mile than Jayden's.
Mathew's company charges $0.4 less per mile than Jayden's
The equation that represents Mathew's charges is given as:
[tex]y = 1.32 + 2x[/tex]
Jayden's pickup is given as $2.50, while the rate per mile is given as $2.40.
So, the equation that represents Jayden's charges is
[tex]y = 2.50 + 2.4x[/tex]
So, the equations are:
[tex]y = 1.32 + 2x[/tex] --- Mathew
[tex]y = 2.50 + 2.4x[/tex] --- Jayden
A linear equation is represented as:
[tex]y = mx + b[/tex]
Where:
m represents the slope/rate.
Hence, Mathew's company charges $0.4 less per mile than Jayden's
Read more about linear equations at:
https://brainly.com/question/14323743
d) (2x - 5) (5x - 2) = 0
Answer:
10x^2-29x+10 is the answer of the question..Please use distributive property to solve it
Thank you