Answer:
y = 2x + 15
Step-by-step explanation:
Let y represent the total amount paid by the teachers.
It is provided that the Dairy Queen charges a one time fee of $15 to deliver the treats to the school and each cone cost $2.
Let x represent the number of cones bought.
Then the equation that can be used to find the total cost of ice cream cones for ERHS students is:
y = 2x + 15
STATS QUESTION PLEASE HELP AND EXPLAIN!
A least squares regression line was calculated to relate the length (cm) of newborn boys to their weight in kg. The line is weight = -5.58 + 0.1686 length. A newborn was 48cm long and weighed 3 kg. According to the regression model, what was his residual? What does that say about him?
1) WHAT WAS HIS RESIDUAL?
2) WHAT DOES THAT SAY ABOUT HIM? SELECT THE CORRECT CHOICE AND FILL IN ANY ANSWER BOXES TO COMPLETE YOUR ANSWER (round to three decimal places as needed)
a. the newborn weighs ____ kg less than the weight predicted by the regression equation
b. the newborn weighs _____ kg more than the weight predicted by the regression equation
c. the newborn weighs the same as the weight predicted by the regression equation
Answer:
0.487 kg
b.) the newborn weighs 0.487kg more than the weight predicted by the regression equation
Step-by-step explanation:
Given the Regression equation:
Weight = - 5.58 + 0.1686 length
Length of newborn = 48 cm
Actual Weight of newborn = 3kg
Predicted weight from regression model:
Weight = - 5.58 + 0.1686(48)
Predicted Weight = 2.513kg
Hence, residual = (Actual - predicted)
Residual = (3kg - 2.513kg) = 0.487kg
Since the actual weight is more or greater than the predicted weight:
b.) the newborn weighs 0.487kg more than the weight predicted by the regression equation
Solve the inequality 5:0 -6 < 2 + (30 — 4).
Pls help
Answer:
x≤2
Step-by-step explanation:
The answer to 5x-6≤2+(3x-4)
Happy Halloween!
Plzzz answer urgently willark brainliest and will also follow plssss
Answer: THE LENGTH OF AB IS 13CM
Step-by-step explanation:
tehe lets be friendssss
The total cost, C, to attend a swim meet for a swimmer competing in x events can be modeled using a linear function. Each swimmer will pay a $3.00 entry fee for each event and $8.00 for lunch. Each swimmer may sign up for a maximum of 5 events. What is the range of the function for this situation?
Answer:
The range is between $11 to $23Step-by-step explanation:
let the total cost be c
let the number of events be x
the linear model is
c=3x+8
therefore for 1 event
c=3(1)+8
c=3+8
c=11
=$11
therefore for 5 events
c=3(5)+8
c=15+8
c=23
=$23
The range is between $11 to $23
The equation = ( + ) can be used to calculate the distance, , traveled by a body moving with a stv0atsuniform acceleration, , in time, , where is the initial velocity of the body. The steps to solve the equation atv0for are:v0Step 1: = + v0atStep 2: − = atv0Which properties are applied to obtain step 1 and step 2?multiplication property of equality and subtraction property of equality
(A) division property of equality and addition property of equality
(B) multiplication property of equality and addition property of equality.
(C) division property of equality and subtraction property of equality
RIGHT ! Somebody help
Johnny scored a 75% on his math test. He got 18 questions
correct. How many questions were on the test? *
Answer:
24
Step-by-step explanation:
18/24=0.75
Hope this helps!
I don’t know the answer to this
How do you solve 25-3x40
Answer:
-95
Step-by-step explanation:
multiply before you subtract
Help me pleaaaaaaassssssssseeeeeeee
Answer:
+29
Step-by-step explanation:
(-)(-)=+
The diameters of trees at a nursery are Normally
distributed with a mean of 2.5 inches and a standard
deviation of 0.5 inches.
X-
Calculate the Z-score for a tree that has a diameter of
1.83 inches. Round the Z-score to the nearest
hundredth, if necessary.
The Z-score for a tree that has a diameter of 1.83 inches
is about...?
Answer:
-1.34
Step-by-step explanation:
HELP ASAP, BIG TEST!
When f(c)= 10x^2 + 3x -4, evaluate f(-4)
Answer:
[tex]f(x) = 144[/tex]
Step-by-step explanation:
This problem deals with a function. All this question is asking is to plug in -4 every time an x appears.
So, let's do that:
[tex]f(-4) = 10(-4)^{2} + 3(-4) - 4[/tex]
[tex]f(-4) = 10(16) - 12 - 4[/tex]
[tex]f(-4) = 160 - 16[/tex]
[tex]f(-4) = 144[/tex]
evaluate each expression 5(10-1)
Answer:
the answer is 45 if its is what you need
Step-by-step explanation:
i got 100 on test and had that question
Mr. Webb had 90.66 feet of wood. If he gave Jim 15.4 feet, Allison 20.69 feet and Cory
32.02 feet, how much does he have left?
Answer:
22.55 ft of wood is what mr. webb will have left
1x
—— + 6 = -8 please help me I don’t understand do if you could explain I’d appreciate it.
7
Answer:
-14
Step-by-step explanation:
_____ + 6 = - 8
Let x + 6 = - 8
x = - 8 - 6
x = - 14
Thus, - 14 + 6 = - 8
Answer: -14
Step-by-step explanation:
We know all the numbers can be found in a different equation because three numbers are always in a fact family.
Remember: negative + positive = negative-8 + 6 = -14
The answer is -14.
You are decorating a Rose Bowl float. There are 108 red roses, 144 white roses, 48 yellow roses, and 72 purple roses. If bunches of roses are identical and there are no leftover roses, what is the greatest number of bunches that can be made? How many roses of each color are in each bunch?
Answer:
Step-by-step explanation:
Number of red roses = 108
Number of white roses = 144
Number of yellow roses = 48
Number of purple roses = 72
If the number of roses in each bunch are identical,
Number of bunches of roses = HCF of number of roses
Factors of 144 = 3×3×2×2×2×2×1
Factors of 108 = 3×3×3×2×2×1
Factors of 72 = 3×3×2×2×2×1
Factors of 48 = 3×2×2×2×2×1
Common factors of 144, 108, 72, 48 = 3 × 2 × 2 × 1 = 12
Therefore, number of bunches of roses with equal number of roses = 12
Number of red roses in each bunch = [tex]\frac{108}{12}=9[/tex]
Number of white roses in each bunch = [tex]\frac{144}{12}=16[/tex]
Number of yellow roses in each bunch = [tex]\frac{48}{12}=4[/tex]
Number of purple roses in each bunch = [tex]\frac{72}{12}=6[/tex]
Solve x^2 = 64, where x is a real number.
Simplify your answer as much as possible.
If there is more than one solution, separate them with commas.
If there is no solution, click on "No solution".
Answer:
x=8
Step-by-step explanation:
8 times 8 equals 64
Solve for y in the following equation.
Answer: The last one.... -9
hope this helped :>
Andre ran 2 kilometers in 15 minutes, and Jada ran 3 kilometers in 20 minutes.
Both ran at a constant speed.
Did they run at the same rate? Explain or show your reasoning.
I
They did not run at the same rate because
Answer:
They do not run at the same rate because Jada ran at a rate of .150km per min, while Andre ran at .133333 km per minute.
Step-by-step explanation:
Andre ran : 2km/15min = .133333km per min
Jada ran: 3km/20min=.150km per minute
.150>.1333, so Jada ran at a higher rate of kilometers per minute.
1. Yearly membership with the online music club costs $48. Members pay $0.99 per song to download music. Nonmembers may download songs for $1.29 each.
Answer:
160 musics
Step-by-step explanation:
let the total amount/charges be y
let the number of musics be x
For members total
y=48+0.99x-------1
For non-members total
y=1.29x-------------2
we are expected to solve for the number of music where members and non members get to pay the same amount
equating 1 and 2 we have
48+0.99x=1.29x
48=1.29x-0.99x
48= 0.3x
x=48/0.3
x=160 musics
A purse is on sale for $25.60. If the original price of the purse was $32.00,what is the percent of discount?
Answer:
20%
Step-by-step explanation:
The dollar amount of the discount is $32.00 - $25.60 = $6.40
Now we need to find what percent of $32.00 is $6.40.
To find what percent a part is from a whole, divide the part by the whole and multiply by 100%.
percent = part/whole * 100%
part = $6.40
whole = $32.00
percent = $6.40/$32.00 * 100%
percent = 20%
if pooh bear got a bucket of honey and hops got one how much do I need to steal from hops >;3
Answer
all of it
Step-by-step explanation:
Answer:
one bucket/all of it
Step-by-step explanation:
Write the following equation in slope intercept form.
x-2y=42
y=__ x+__
Answer:
Blank 1: 1/2
Blank 2: -3
Step-by-step explanation:
1 What is the nature of the roots of the quadratic equation if the value of its discrimman
is zero?
The roots are not real
o the roots are rational and not equal
b. The roots are irrational and not equal d the roots are rational and equal
2. Whal is the ans of symmetry of the parabola y
Answer:
If d is zero, both roots are rational and equal.
Step-by-step explanation:
Quadratic Equations
The standard representation of a quadratic function is:
[tex]f(x)=ax^2+bx+c[/tex]
where a,b, and c are constants.
Solving with the quadratic formula:
[tex]\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
The discriminant is defined as:
[tex]d=b^2-4ac[/tex]
The sign of the discriminant defines the nature of the roots of the quadratic equation as follows:
If d is positive, both roots are real and differentIf d is negative, both roots are imaginary and conjugateIf d is zero, both roots are rational and equal.A high school track is 9.76 meters wide. It is divided into 8 lanes of equal width for
track and field events. How wide is each lane?
Answer:
1.22
Step-by-step explanation:
9.76/8
Look at the following numbers:
− 4, −1, 0, 4
Which pair of numbers has a sum of 0?
The 6th graders brought in 56 boxes of tissues 48 pads of loose leaf and 16 rolls of toilet paper. The t acher wants to divide the materials into the greatest amount of containers but wants each container to look the same how many containers can they fill how many of each item will be inside the containers
Answer:
The greatest amount of containers with each container to looking the same is 8 containers.
Step-by-step explanation:
We have:
56 boxes of tissues
48 pads of loose leaf
16 rolls of toilet paper.
To find the greatest amount of containers with each container to looking the same we apply the greatest common factor method
Step 1
We list the factors of 16, 48 and 56
The factors of 16 are: 1, 2, 4, 8, 16
The factors of 48 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56
The greatest common factor is 8.
Hence, the greatest amount of containers with each container to looking the same is 8 containers.
Find the average rate of change for the function over the given interval.
2) y = 6x3 - 6x2 - 8 between x = 2 and x = 4
Answer:
132
Step-by-step explanation:
The average rate of change over a function can be given by: f(b)-f(a)/b-a. Where b is the second part of the interval and a is the first part.
y = 6x^3-6x^2-8
____
x = 2
6(2)^3-6(2)^2-8
6(8)-6(4)-8
48-24-8
24-8
16
____
x = 4
6(4)^3-6(4)^2-8
384-96-8
288-8
280
_____
280-16/4-2 = 264/2 = 132
yoooo can someone help meeee thanks In advance
Answer:
The slope of F = 5.
Not 100% sure.
The cost of buying x ornaments at $4.25 an ornament.?
A.Proportional
B.Non Proportional
Question 2 What is the slope and y intercept of 4x + 6y = -20?
Answer:
Slope is -2/3. The y - intercept is -10/3.
Step-by-step explanation:
Simplify the equation by using division property of equality.