Answer:
B.- Only (-3,5)
Step-by-step explanation:
In an ordered pair the first coordinate is the [tex]x[/tex] coordinate, and the second coordinate corresponds to the [tex]y[/tex] coordinate.
Then we must substitute the given value of [tex]x[/tex] in the equation and verify that we get in return the defined value for [tex]y[/tex].
the options are
[tex](-2,4)[/tex]in this one [tex]x = -2[/tex], and [tex]y=4[/tex], so let's confirm:
[tex]y=-3x-4\\y=-3(-2)-4\\y=-6-4\\y=2[/tex]this is not a solution since the [tex]y[/tex] values are not the same.
[tex](-3,5)[/tex]in this one [tex]x= -3[/tex] and [tex]y=5[/tex], let's also confirm:
[tex]y=-3(-3)-4\\y=9-4\\y=5[/tex]in this one the values for [tex]y[/tex] are equal, this is a solution for the equation.
As you walk to your car, you notice that your tire is nearly flat. The initial psi level yesterday was 38, but it is now only 35 today. If this trend continues and the tire keeps losing the same percentage of air, how much should be left at the end of the week?(7 days later)
Answer:
Air left in the Tyre after 1 week = 21.36 psi
Explanation:
Initial psi level = 38 psi
Psi level after 1 day = 35 psi
Percentage of remaining of air per day = (35/38)*100 = 92.10%
Ratio of remaining air per day = 0.921
Ratio of remaining air after 7 days = 0.921⁷ = 0.562
Percentage of remaining air after 7 days = 56.21%
Air left in the Tyre after 1 week = 38*56.21/100 = 21.36 psi
The student's question is about calculating the expected tire pressure at the end of a week, based on a consistent daily percentage decrease from an initial 38 psi to 35 psi. It involves a mathematical analysis using exponential decay, which is a high school level mathematics topic.
The question involves finding the projected tire pressure after a week given an initial pressure of 38 psi that has decreased to 35 psi in one day. The percentage decrease from 38 psi to 35 psi is calculated first, and then this percentage is consistently applied to find the remaining pressure after 7 days using exponential decay since the tire loses the same percentage of air each day.
Step 1: Calculate the percentage decrease.
Initial pressure (yesterday) = 38 psi
Current pressure (today) = 35 psi
Percentage decrease = ((38 - 35) / 38) x 100%
Step 2: Apply this percentage decrease for 7 days using the formula:
Pn = P0 * (1 - percentage decrease)^n
Where:
Pn is the pressure after n days
P0 is the initial pressure
n is the number of days
By calculating P7, we can find the expected pressure at the end of the week.
Step 3: Substitute the known values and calculate the expected pressure after 7 days.
Change the number 43,456 to its word name.
A. Four hundred thirty-four hundred and fifty six
B. Forty-three thousand, four hundred fifty six
C. Four hundred three thousand, four hundred fifty six
D. Forty-three thousand, four fifty six
Answer:
B
Step-by-step explanation:
Find the measure of z.
A. 80°
B. 83 °
C. 70 °
D. 87 °
use inequality symbol to compare -3 + 7--------10 - 2
[tex]-3+7=4[/tex]
[tex]-10-2=-12[/tex]
[tex]4>-12[/tex]
The graph of y= -4x+7 is:
A. a line that shows the set of all solutions to the equation
B.A point that shows the y-intercept
C.A point that shows only one solution to the equation
D.A point that shows one solution to the equation
Answer:
A is the answer
Step-by-step explanation:
The graph of the equation y = -4x+7 is a line that shows the set of all solutions of the equation.
What is equation of the line ?"The equation of line is an algebraic form of representing the set of points, which together form a line in a coordinate system. The numerous points which together form a line in the coordinate axis are represented as a set of variables x, y to form an algebraic equation, which is referred to as an equation of a line. Using the equation of any line, we can find whether a given point lies on the line or not.
The equation of line is a linear equation with a degree of one"
"The equation of a line can be formed with the help of the slope of the line and a point on the line."
Here is the equation of the line is given,
y = -4x + 7
since, it is the equation of a line, it contains all the solutions on the graph.
Hence, option A is the correct option.
To know more about equation of motion here
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A cube has a length, width and height of 6 feet. What is the volume in cubic INCHES?
Volume of cube = ( side)^3
Side = 6 feet = 6×12 = 72 inches ( 1ft =12 inch)
Vol. = (72)^3 = 72×72×72= 373248 cubic inches
Answer:
6
Step-by-step explanation:
which is the focus of a parabola with equation y^2=4x
The focus is (1,0)
Hope this helps!
Answer:
focus is (1,0)
Step-by-step explanation:
the focus of a parabola with equation [tex]y^2=4x[/tex]
Focus point lies inside the parabola
To find the focus of a parabola we need to find the vertex
the distance between the focus and vertex is the value of p.
Focus point is (h+p,k)
Where (h,k) is the vertex
Given equation is in the form of [tex](y-k)^2=4p(x-h)[/tex]
Given equation can be written as [tex](y-0)^2=4(x-0)[/tex]
So the vertex is (0,0)
Now we find the value of p
[tex]4p = 4[/tex]
So [tex]p=1[/tex]
Focus is (h+p,k) that is (1,0)
Least to greatest ordering integers
Answer:
5, 19, 24, 46, 77, 98
Step-by-step explanation:
Just write the numbers in order (I am assuming from least to greatest). You can use a number line if necessary.
Mariana wears her winter coat when the temperature is colder than − 4 C . Write an inequality that is true only for temperatures ( t ) at which Mariana wears her winter coat.
t<-4
Mariana only wears her coat when it is colder than -4 so t must be less than -4.
Answer: t < -4
Step-by-step explanation:
We want to represent temperatures colder than -4 C
In mathematical terms, we want to represent temperatures less than -4 C
t < -4
How many different 10 digit phone numbers are possible if numbers can be repeated
It was would numbers 000-000-0000 through 999-999-9999. So that would be 9,999,999,999 + 1 = 10 billion different 10-digit phone numbers.
Amy earned $40 babysitting last week. This week she earned $18. What is the percentage of change.
The percent of change is 45%.
This can be found, by simply dividing 18, by 40, which would give you 0.45, then multiplying 0.45 by 100, to make it a percentage.
I hope this helps!
Given that 1 kilogram weighs approximately 22 pounds, rewrite 10 pounds as an equivalent number of kilograms
Answer:
0.4545 kgs.
Step-by-step explanation:
Given that 1 kg weighs approximately 22 pounds.
i.e. 1kg= 22 lbs.
We can use this to convert lbs into kg.
22 lbs = 1 kg
Hence 1 lb = 1/22 = 0.04545 kg
Now to find out the equivalent weight for 10lbs,
we have conversion factor as 1 lb= 0.04545 kg
Hence 10 lbs = 10(0.04545) = 0.4545 kgs
Hence 10 pounds written in equivalent kgs would be0.4545 kgs.
myra withdraws the same amount of money from her checking account each week. In 4 weeks, she withdraws a total of $200. Which equation represents the amount of money her account changes by each week?
$50 less each week $200 divided by 4
Myra withdraws the same amount of money from her checking account each week.
In 4 weeks, she withdraws a total of $200.
Let she withdraws t amount from her account each week
Then, 4t=$200
t= $ 200/4
i.e. t= $50
So, amount in her account becomes $50 less each week
i.e. If she had $x in her account
then after w weeks amount in her account will be:
x - 50w
A local hamburger shop sold a combined total of 237 hamburgers and cheeseburgers. The number of cheeseburgers sold was two times the number of hamburgers sold. How many hamburgers were sold
Calculate the slope of the line that passes through the labeled points on the graph.
m=(Y2-Y1)/(X2-X1)
(1.) m=(2-(-1))/(-2-3) = 3/-5 = -3/5
(2.) m=(-2-1)/(-3-2) = -3/-5 = 3/5
(3.) m=Infinity (equation: x=-2)
The slopes of the lines passing through the given points are: 1. [tex]\((-2,2)\)[/tex] and [tex]\((3,-1)\)[/tex]: [tex]\(m = -\frac{3}{5}\)[/tex]. 2. [tex]\((-3,-2)\)[/tex] and [tex]\((2,1)\)[/tex]: [tex]\(m = \frac{3}{5}\)[/tex]. 3. [tex]\((-2,-2)\)[/tex] and [tex]\((-2,3)\)[/tex]: The slope is undefined (vertical line).
To calculate the slope m of a line given two points [tex]\((x_1, y_1)\)[/tex] and [tex]\((x_2, y_2)\)[/tex], you can use the formula:
[tex]\[m = \frac{y_2 - y_1}{x_2 - x_1}\][/tex]
Let's apply this formula to the given points:
1. For points (-2,2) and (3,-1):
[tex]\[m = \frac{-1 - 2}{3 - (-2)} = \frac{-3}{5}\][/tex]
2. For points (-3,-2) and (2,1):
[tex]\[m = \frac{1 - (-2)}{2 - (-3)} = \frac{3}{5}\][/tex]
3. For points (-2,-2) and (-2,3):
[tex]\[m = \frac{3 - (-2)}{(-2) - (-2)} = \frac{5}{0}\][/tex]
The slope for the third set of points is undefined because the denominator becomes zero, indicating a vertical line. The first two sets of points have slopes of [tex]\(-\frac{3}{5}\)[/tex] and [tex]\(\frac{3}{5}\)[/tex] respectively.
The square root of 5 is between which two integers
[tex]2<\sqrt5<3\\\\\text{because}\\\\2^2=4\\(\sqrt5)^2=5\\3^2=9\\\\2^2=4<(\sqrt5)^2=5<3^2=9[/tex]
Integers are positive and negative numbers without decimal points.
The square root of 5 is between 2 and 3
The number is given as:
[tex]\mathbf{n = \sqrt{5}}[/tex]
Evaluate the square root
[tex]\mathbf{n = 2.2361}[/tex]
The above number is greater than 2 but less than 3.
So, we can say that:
2.2361 is between 2 and 3
Hence, the square root of 5 is between 2 and 3
Read more about integers at:
https://brainly.com/question/11337513
stans cookie recipe makes 24 cookies and calls for exactly 384 sprinkles. he is wondering how many sprinkles (p) he will need to make 60 cookies. he assumes each cookie will have the same number of sprinkles. how many sprinkles does stan need to make 60 cookies
Answer:
960 sprinkles
Step-by-step explanation:
If 24 cookies call for EXACTLY 384 sprinkles, then 16 sprinkles fit on each cookie. 384/24 = 16
If 16 sprinkles fit on each cookie, 16 cookies on 60 cookies would be 960.
60 x 16 = 960
Answer:
Its 960
Step-by-step explanation:
I did it on khan academy, and got it right!
Suppose the size of each cube is doubled and the size of the large box is doubled. How many of these new cubes will fit in that new large box?
which is greater. 8.72 or 8.720
Actually neither is greater.
these two numbers are equal to each other.
All because 8.720 has an extra number doesn't mean its greater. Because the number place is 0 is gives no significant value and is therefore the same as 8.72.
The bottom line is...
8.72 = 8.720
It's quite easy and simple, but I need help with it.
10.125 as percent help please
10.125 as a percentage is 1012.5%
Answer:
10.125 = 1012.5%
Step-by-step explanation:
[tex]p\%=\dfrac{p}{100}[/tex]
therefore
[tex]a=a\cdot100\%[/tex]
----------------------------------------------
[tex]10.125=10.125\cdot100\%=1012.5\%[/tex]
which represents the inverse of the function f(x)=2x+1?
f(x) = 2x + 1
To find the inverse, f^-1(x), of the function:
Put the function as an equation:
y = 2x + 1
Then move x to the left and y to the right;
x = 2y + 1
Then solve for y;
y = x/2 - 1/2
f^-1(x) = y
f^-1(x) = x/2 - 1/2
Nita wants to buy a new keyboard for her computer. She will buy the keyboard when it is on sale for under $50 Write an inequality that describes k, the price in dollars at which Nita will buy the keyboard
This would be k < 50.
This inequality states that k, the price at which Nita wants to buy the new keyboard, is less than 50 dollars.
Answer:
0 ≤ k ≤ 50
Step-by-step explanation:
Here k represents the price of the keyboard ( in dollars ),
Given,
Nita will buy the keyboard,
If the price of the keyboard is under $ 50,
That is, [tex]k \leq 50[/tex]
Also, the price can not be negative,
⇒ [tex]0 \leq k[/tex]
Hence, the required inequality is,
[tex]0 \leq k \leq 50[/tex]
Ramona is a saleswoman whose base pay plus commissions amounted to $52561 last year. If her base pay was $23690 and she made $77,300 in sales last year, what is her rate of commission
A) 68%
B) 37%
C) 31%
D) 46%
Answer:
B) 37%
Step-by-step explanation:
Given,
The total base pay and commission = $ 52561,
While, base pay = $ 23690,
So, the amount of commision = Total base pay and commission - base pay = $ 52561- $ 23690 = $ 28871,
Also, total sale = $77,300,
Hence, the rate of the commission( in percentage )
[tex]=\frac{Commission}{Sale}\times 100[/tex]
[tex]=\frac{28871}{77300}\times 100[/tex]
[tex]=\frac{2887100}{77300}[/tex]
[tex]=37.3492884864\%[/tex]
[tex]\approx 37\%[/tex]
Option 'B' is correct.
At 8:00 a.m. the temperature outside in Juneau, Alaska was -16.5 . By noon the temperature had increased by 15.25 . What is the temperature at noon?
It would be -1.25 degrees at noon.
There are 21 more days before the first big winter storm and the squirrel collects 12 acorns a day, how far away from her original amount will the squirrel be? Explain. What should the squirrel do to the bear to get even with him for eating all those acorns?
The squirrel will collect a total of 252 acorns in the 21 days before the winter storm. This is calculated by multiplying 12 acorns/day by 21 days. Instead of retaliating against a bear, the squirrel should focus on preparing for winter.
Explanation:If the squirrel collects 12 acorns a day and there are 21 more days until the big winter storm, we can calculate the total number of acorns the squirrel will collect. We do this by multiplying the number of acorns collected per day by the number of days remaining, which gives us:
12 acorns/day × 21 days = 252 acorns
After 21 days, the squirrel will have accumulated 252 acorns more than the original amount she had before the given 21-day period.
Regarding what the squirrel should do to get even with the bear for eating the acorns, it's important to remember that animals in nature often have to deal with challenges like this. The squirrel could focus on collecting more acorns, perhaps finding a better hiding place to store them, to prepare for the winter storm. However, revenge actions, such as retaliating against the bear, are not advisable nor part of natural behaviors in wildlife, and focusing on preparations for winter would be a more practical approach for survival.
2b+4=-18-9b ; solving equations with variables on both sides
To solve this, first add -9b on both sides of the equation to get the variable on only one side of the equation.
2b+4=-18-9b
2b+9b+4=-18-9b+9b
11b+4=-18
Then subtract 4 from both sides of the equation.
11b+4=-18
11b+4-4=-18-4
11b=-22
Divide 11 on both sides of the equation to find the values of b.
[tex]\frac{11b}{11}[/tex]=[tex]\frac{-22}{11}[/tex]
b=-2
Bradley solved the following equation 4(5x - 6) = 2(8x + 10)
Hello! I'm guessing you need someone to solve this equation!
4(5x-6)=2(8x+10)
20x-24=16x+20
Add 24 on both sides!
20x=16x+44
Subtract 16x on both sides!
4x=44
Divide 4 by 44
x=11
John earns $437 a week after a 15% pay rise. What was his pay initially? Round your answer to the nearest dollar. Do not include the dollar sign in your answer. For example, if your answer is $200.10, enter 200.
The answer to this question is 380
Answer:
380 dollar.
Step-by-step explanation:
John earns $437 a week after a 15% pay rise.
Let the initially pay of John be x
x + (15% of x) = 437
x + 0.15x = 437
1.15x = 437
x = [tex]\frac{437}{1.15}[/tex]
x = 380
Initially his pay was 380 dollar.
pepper jackie decides her map of the youth center is too small. She draws a new map of the youth center that is 3 times larger. What is the scale of the map?
Solution:
Let starting map of youth center has Dimension (Preimage)
1 unit of y= k units
1 unit of x = t units
The new map of youth center which is 3 times larger than original(Image)
1 unit of y= 3 k units
1 unit of x = 3 t units
Image = 3 × Pre- image
The image is larger than Pre- image.
So, Scale of the new map = 3 × The original dimension of map.
Answer:
the answer is 1 in: 4 ft
Step-by-step explanation:
i took the test and hopefully i’ve helped you luv