Coach's errors are;
Wrong conversion when converting hour to seconds
There is wrong conclusion since Eliza was running fast enough at a speed of 34ft/s compared to 8.8ft/s
The speed required by eliza is 8.8 ft/s
Converting 5.8miles to feet per second
Taking the coach conversion
This shows that 5.8mi/hr is equivalent to 34.0ft/s in accordance with coach conversion rate.
The coach made the first error by taking 60s as 1hr instead of 3600s as 1hr
The mistake that Eliza is not running fast enough to exceed her fastest time. Eliza is running at pace as her speed at 34ft/s exceed 8.8ft/s.
Hence the second error was the wrong conclusion made by the coach.
The average rate is a measure of how much the function changed per unit, on average, over that interval. It is founded from the slope of the line connecting the interval's endpoints on the function's graph.Learn more about average rate here:
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The lengths of the four sides of a quadrilateral (in inches) are consecutive integers. If the perimeter is 110110 inches, find the value of the longest of the four side lengths.
The lengths of the four sides of such a quadrilateral as indicated in the task content are; 26, 27, 28 and 29.
What is the Length of the four sides of the quadrilateral?It follows from the task content that the length of the four sides of the quadrilateral in discuss be determined.
Since the lengths are consecutive integers, we can take.the lengths as;
x, (x+1), (x+2), (x+3).
Hence, the sum of the lengths is equal to 110 as follows;
x + (x+1) + (x+2) + (x+3) = 110
4x + 6 = 110
4x = 104
x = 26 which is the shortest of all sides.
Ultimately, the length of the four sides are; 26, 27, 28 and 29.
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The table shows a proportional relationship between the mass, in kilograms (\text{kg})(kg)left parenthesis, start text, k, g, end text, right parenthesis, of a dog and the milliliters (\text{mL})(mL)left parenthesis, start text, m, L, end text, right parenthesis of flea medicine a veterinarian prescribes.
Using a proportional relationship, the numbers that could be used as the missing values in the table are:
35 kg, 1.4 ml.
What is the missing information?The table is given by:
50 kg, 2 ml.10 kg, 0.4 ml.5 kg, 0.2 ml.x kg, x ml.It asks for the missing value in the table, and the options are given as follows:
15 kg, 0.9 ml.25 kg, 0.8 ml.40 kg, 1.6 ml.35 kg, 1.4 ml.20 kg, 1.2 ml.What is a proportional relationship?A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:
y = kx
In which k is the constant of proportionality.
Considering point (50,2), the relationship is given by:
y = 0.04x.
As k = 2/50 = 0.04.
When x = 35, we have that:
y = 0.04 x 35 = 1.4.
Which means that the point is:
35 kg, 1.4 ml.
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Answer:
c and d
Step-by-step explanation:
what would be the cost of renting 2 lawn mowers for 5 hours?
Answer:
35 dollars
Step-by-step explanation:
thats the answer
g(x)=4x^2-3x+5, g(x) - g(2)
Solve the question.
f
(
4
x
2
−
5
)
=
12
x
2
−
20
Step-by-step explanation:
Find the difference. –8 – (–11)
Answer:
3.Step-by-step explanation:
Subtract:
-8 - (-11)= -8 + 11 or 11 + (-8)= 3.ax + by = 12
2x + 8y = 60
In the system of equations above, a and b are constants. If the system has infinitely many solutions, what is the value of a/b
?
Answer:
1/4
Step-by-step explanation:
If the system has infinitely many solutions, then
[tex]\sf \boxed{\bf \dfrac{a_1}{b_1}= \dfrac{a_2}{b_2}= \dfrac{c_1}{c_2}}[/tex]
ax + by = 12 ⇒ a₁ = a ; b₁ = b ; c₁ = 12
2x + 8y =60 ⇒ a₂ = 2 ; b₂ = 8 ; c₂ = 60
[tex]\sf \dfrac{a}{2}= \dfrac{b}{8}= \dfrac{12}{60}\\\\\\ \dfrac{a}{2}= \dfrac{12}{60}\\\\a = \dfrac{12}{60}*2\\\\a = \dfrac{2}{5}[/tex]
[tex]\sf \dfrac{b}{8}= \dfrac{12}{60}\\\\ b = \dfrac{12}{60}*8\\\\b = \dfrac{8}{5}\\[/tex]
[tex]\sf \dfrac{a}{b}= \dfrac{ \dfrac{2}{5}}{ \dfrac{8}{5}}\\\\[/tex]
[tex]\sf = \dfrac{2}{5}* \dfrac{5}{8}\\\\ = \dfrac{1}{4}[/tex]
1-87 Plot the points A(3,2) B(3,6) C(5,4) on a piece of graph paper and translate the figure up 2 units
and left 5 unita.
the points will become from ( x , y ) to ( x - 5 , y + 2) and these has been plotted on the graph.
We are given the coordinates of the points:
A (3 , 2)
B (3 , 6)
C (5 , 4)
We need to plot them on the graph paper.
Now, we need to translate the points 2 units to the up and 5 units to the left.
So, the coordinates will change from ( x , y ) to ( x - 5 , y + 2)
So, we get that:
A (3 , 2) will become A' ( - 2 , 4)
B (3 , 6) will become B' ( - 2 , 8)
C (5 , 4) will become C' ( 0 , 6)
Therefore, we get that, the points will become from ( x , y ) to ( x - 5 , y + 2) and these has been plotted on the graph.
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Factorize the following completely
1. 4p+2pr+6pz
2. ax + bx + cx
Answer:
1. 2p(2 + r + 3z)
2. x(a + b + c)
Step-by-step explanation:
1. The greatest common factor is 2p.
4p+2pr+6pz = 2p(2 + r + 3z)
2. The greatest common factor is x.
ax + bx + cx = x(a + b + c)
How to do rate of change using a table ? (7th grade math)
To find the rate of change in a tablet the same process applies:
1. find the coordinates of the given points, it's optional to label them.
2. find the difference between the output values.
3. find the difference between the input values.
4. calculate the ratio between the change in y to the change in x: ∆y∆x.
That's the correct answer stated above.
Given the polynomial below, identify the following: variable, exponent, constant, and coefficient
-14q^5 - 6
In the polynomials;
The value of variable = q
The value of exponent = 5
The value of constant = -6
The value of coefficient = -14
Here,
The given polynomial is;
-14q⁵ - 6
We have to find the variable, exponent, constant, and coefficient in the polynomial.
What is an Exponent?
An exponent is refer to number of times a number is multiplied by itself.
Now,
In the given polynomial;
-14q⁵ - 6
The variable is = q
Since, the power of q is 5.
Hence, The value of exponent = 5
And, The value of constant term = -6
And, The value of coefficient = -14
Therefore, In the polynomials;
The value of variable = q
The value of exponent = 5
The value of constant = -6
The value of coefficient = -14
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3(3x+5)-4x+5= -15 solve for x
Answer:
x = -7
Step-by-step explanation:
Solve for x:
5 - 4 x + 3 (3 x + 5) = -15
3 (3 x + 5) = 9 x + 15:
(9 x + 15) - 4 x + 5 = -15
Grouping like terms, 9 x - 4 x + 5 + 15 = (-4 x + 9 x) + (5 + 15):
((-4 x + 9 x) + (5 + 15)) = -15
9 x - 4 x = 5 x:
5 x + (5 + 15) = -15
5 + 15 = 20:
5 x + 20 = -15
Subtract 20 from both sides:
5 x + (20 - 20) = -20 - 15
20 - 20 = 0:
5 x = -20 - 15
-20 - 15 = -35:
5 x = -35
Divide both sides of 5 x = -35 by 5:
(5 x)/5 = (-35)/5
5/5 = 1:
x = (-35)/5
The gcd of -35 and 5 is 5, so (-35)/5 = (5 (-7))/(5×1) = 5/5×-7 = -7:
Answer: x = -7
Answer:
x = -7
--------------------------
Hope this helps!
Have a great day and God bless! :)
I need help 15/4+(-4/1/3
The expression is simplified to -33/4
What are fractions?
Fractions are simply defined as the part of a whole set.
There are different types of fractions, which includes;
Mixed fractionsProper fractionsImproper fractionsSimple fractionsComplex fractionsGiven the expression;
15/4+(-4/1/3)
To simply the expression, we need to take the following steps;
First, we need to expand the bracket, we have;
15/ 4 - 4/ 1/ 3
Now, take the inverse of the divisor and multiply
15/ 4 - 4 × 3/ 1
15/ 4 - 12
Find the lowest common multiple
15 - 48/4
-33/4
Thus, the expression is simplified to -33/4
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How do i do this? ive been working on it for a long time
ab - cd=?
A=2
B=-3
C=4
D=5
Answer:
x = -26
Step-by-step explanation:
ab - cd = ?
2(-3) - 4(5) = x
-6 - 20 = x
-26 = x
Marina mixed almonds and walnuts to take on her camping trip. Almonds cost $3.00 per pound and walnuts cost $4.20 per pound. If she ended up with three pounds of a mixture that costs $3.36 per pound, how many pounds of each kind of nut did she use?
Out of mixture of 3 pounds with cost $3.36 per pound ,pounds each kind of nuts used by Marina are almonds 2.1 and walnuts 0.9 pounds.
As given,
Cost per pound
Almonds=$3.00
Walnuts=$4.20
Total mixture=3 pounds
Cost of mixture=$ 3.36 per pound
Let x amount of almonds and y walnuts Marina use
According to condition,
x +y=3 __(1)
3x +4.20y =3 ×3.36 __(2)
Multiply 3 to (1) and subtract from (2)
3x +4.20y=10.08
3x +3y= 9
1.2y=1.08
⇒y=0.9
Substitute y=0.9 in (1),
x=2.1
Therefore, pounds of each kind of nuts used by Marina are almonds 2.1 and walnuts 0.9 pounds.
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3:00 pm, 12:30 pm, 10:00 pm,…. conjecture: next term:
The next arrival in the sequence 3:00 pm, 12:30 pm, 10:00 pm,... is 7:30 A.M.
The given sequence is 3:00 pm, 12:30 pm, 10:00 pm,...
Let us first find the difference between the arrivals from the given sequence
3:00 pm - 12:30 pm = 2:30
12:30 pm - 10:00 pm = 2:30
Since, each arrival time is 2 hours and 30 minutes prior to the previous arrival time.
Therefore, the next arrival is:
10:00 pm - 2:30 = 7:30 am
Thus, the next arrival in the sequence is 7:30 A.M.
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researchers collect continuous data with values ranging from 0-100. in the analysis phase of their research they decide to categorize the values in different ways. given the way the researchers are examining the data - determine if the data would be considered nominal, ordinal or ratio (you may use choices more than once).
The data in the given three questions can be considered as nominal, ordinal and ratio, respectively.
The frequency (or absolute frequency) of an event in statistics is the number of times the observation occurred or was recorded in an experiment or research.Within a variable, nominal data is data that may be labelled or categorized into mutually exclusive groups. These categories cannot be meaningfully arranged.Ordinal data is a sort of categorical, statistical data in which the variables have natural, ordered categories but the distances between them are unknown.Two categories ( low vs high): frequency of values between 0-49 and frequency of values between 50-100 : nominal Three frequency (count) categories (low, medium, and high) of values ranging from 0 to 25, 26 to 74, and 75 to 100 : ordinalAnalyze each number in the set individually : ratioTo learn more about frequency, visit :
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Use the trapezoid shown to mark each statement below as true or false. if false, please rewrite the statement correctly in the space below the statement!
Q: The perimeter of the trapezoid shown is 22 units.
True false?
FIRST TO ANSWER IS MARKED BRAINLIEST!!!
Answer:
False
The perimeter of the trapezoid shown is 23 units
Step-by-step explanation:
According to the given information, segment uv is parallel to segment wz, while angles squ and vqt are vertical angles. angle vqt is congruent to angle squ by the vertical angles theorem. because angles squ and wrs are ________ angles, they are congruent according to the ________ angles theorem. finally, angle vqt is congruent to angle wrs by the transitive property of equality. which term accurately completes the proof? a alternate interior b corresponding c same-side interior d vertical
Angle vqt is congruent to Angle squ by the vertical angles theorem. because angles squ and wrs are corresponding angles, they are congruent according to the Corresponding angles theorem.
Option b is true.
Here,
Segment uv is parallel to segment wz,
Angles squ and vqt are vertical angles.
Angle vqt is congruent to Angle squ by the Vertical angles theorem.
What is corresponding angles?
Any pair of angles each of which is on the same side of one of two lines cut by a transversal and on the same side of the transversal.
Now,
Angle vqt is congruent to Angle squ by the vertical angles theorem.
When, two angles are corresponding angle then, Angle vqt is congruent to Angle squ by the Vertical angles theorem.
And, they are congruent according to the Corresponding angles theorem.
Hence, Segment uv is parallel to Segment wz, while Angles squ and vqt are Vertical angles. Angle vqt is congruent to Angle squ by the vertical angles theorem. Because angles squ and wrs are corresponding angles, they are congruent according to the corresponding angle theorem. finally, Angle vqt is congruent to Angle wrs by the transitive property of equality.
So, Option b is true.
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what is the range of h(x) = |x| − 2??? please help
Answer:
it's C_67$-$(?9
Step-by-step explanation:
it's )3)384((3(# 920
The diagram below shows part of the graph of the equation y=[tex]2x^{2}+ax+b.[/tex] the graph intersects the x-axis at the points [tex](-\frac{7}{2}, 0) and (2,0)[/tex]. Find the value of a and the value of b
The value of a is 3.
The value of b is -14.
What is Coordinates?
A pair of numbers which describe the exact position of a point on a cartesian plane by using the horizontal and vertical lines is called the coordinates.
Given that;
The function of the graph is,
y = 2x² + ax + b
The graph intersects the x-axis at the points (-7/2, 0) and (2, 0).
Now,
Since, The graph intersects the x-axis at the points (-7/2, 0) and (2, 0).
Hence, The points must satisfy the graph of the function.
So, Points (-7/2, 0) and (2, 0) are satisfy the function y = 2x² + ax + b.
When point (-7/2, 0) satisfy the function y = 2x² + ax + b
Then,
0 = 2 × (-7/2)² + a × (-7/2) + b
0 = 49/2 - 7a/2 + b
7a/2 - b = 49/2 .... (i)
And, When point (2, 0) satisfy the function y = 2x² + ax + b
Then,
0 = 2 × (2)² + a×2 + b
2a + b = -8 .... (ii)
Add equation (i) and (ii) we get;
7a/2 - b + 2a - b = 49/2 + (-8)
11a/2 = 33/2
11a = 33
a = 3
And, 2a + b = -8
2 × 3 + b = -8
b = -8 - 6
b = -14
Hence, The value of a is 3.
The value of b is -14.
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A equals two, B equals -3, sequels, four, D equals five
Answer:
i dont get what the question is
what the answerr need help asap
The answer is B
since sqrt x = x ^1/2 one being the power of the x and two being the number of radical
in this case 7sqrt x^3 = x ^ 3/7 which is B
The midpoint of \overline{\text{AB}} AB is M(2, -2)M(2,−2). If the coordinates of AA are (-2, 1)(−2,1), what are the coordinates of BB?
The coordinate of point B from the given coordinates is (6, -9)
Midpoint of a coordinateThe formula for calculating the midpoint of coordinates is expressed according to the formula:
M(x, y) = {(x₁+x₂)/2, (y₁+y₂)/2}
Given the coordinate points M (2, -2) and A (-2, 1)
Substitute
2 = (x₁+x₂)/2
2 = -2+x₂/2
4 = -2 + x₂
x₂ = 6
Similarly;
Substitute
-2 = (1+y₂)/2
-4 = 1+x₂/2
-8 = 1 + y₂
y₂ = -9
Hence the coordinate of point B from the given coordinates is (6, -9)
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Answer:(6,-5)
Step-by-step explanation:deta math
-3(x+5)= 3(x-1) solve for x
Answer: x=-2
Step-by-step explanation:
-3(x+5)= 3(x-1)
-3x-15=3x-3
-3x-15=3x-3
-15=6x-3
6x=-12
x=-2
Find the rule. _____, -9, ______, 3, 9 ...
The rule of arithmetic progression is -15, -9, - 3, 3, 9, 15.
What do w mean by Arithmetic progression?An arithmetic progression is a sequence of numbers that has a fixed common difference between any two consecutive numbers (A.P.). A.P.'s example is 3,6,9,12,15,18,21,...So, to find the rule:
Given: _____, -9, ______, 3, 9Then, 9 - 3 = 6So, the difference is 6.Therefore, the rule is -15, -9, - 3, 3, 9, 15.
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please help!
not sure how to find 3 and 4
4 ten thousand 9 thousands divided by 10
Answer:
Step-by-step explanation:
49000/ 10 = 4900
select the correct answer from each drop-down menu. determine the number and type of solutions for the following quadratic equations using the discriminant. equation number and type of solutions
Equation [tex]y=x^{2} +7x-11[/tex] has two real solutions.
Here are the coefficients: a=1,b=7,c=11
The discriminating party is: [tex]7^{2}[/tex] -4(1)(-11)=93
Positive, so there are two viable options.
According to the discriminant:
[tex]y=-3x^{2} +x+12[/tex] has two real solutions.
[tex]y=2x^{2} -6x+5[/tex] has zero real solutions.
[tex]y=x^{2} +7x-11[/tex] has two real solutions.
[tex]y=-x^{2} -8x-16[/tex] has one real solution.
What are the benefits of discriminant equation ?Quadratic functions occupy a special place in the academic curriculum. They are small improvements over linear functions and offer a major break from attachment to straight lines because their values may be readily derived from input values.
The discriminant informs you of the number of quadratic equation solutions or x intercepts for a parabola.
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the manufacturer of brand a automobile tires claims that its tire can save gallons of fuel over miles of driving, as compared to a popular competitor (brand b). if gasoline costs $ per gallon, how much per mile driven does this tire save the customer (brand a versus brand b)?
This tire will save $0.008 per mile
Step-by-step explanation:First of all the given information is
110 gallons per 55,000 miles
We need to find
Money saved per mile
55000 = 110
1 = 110/55000
1 miles = 0.002 gallons
Price of 1 gallon = $4.00
Price for 1 mile = 0.002 x 4.00
Price for 1 mile = $0.008
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The question is missing vital information. Therefore, complete question is
The manufacturer of Brand A automobile tires claims that its tire can save 110 gallons of fuel over 55,000 miles of driving, as compared to a popular competitor (brand B). If gasoline costs $4.00 per gallon, how much per mile driven does this tire save the customer (Brand A versus Brand B)?