Jerimiah records lap times at the track meet on Saturday. He records a time of 85 seconds for Jennifer's lap, but she really completed the lap in 84.25 seconds.
What is the approximate percentage of error in Jerimiah's measure?
Answer:
I'm not sure. What I would do, though, is find the difference of the two times and then find the percentage of that within the original time. So the difference is .75. So the percentage would be .25%. Just an educated guess.
Find an expression which represents the sum of (8x + 10y) and (-4. – 3y) in
simplest terms.
Answer:
Submit Answer
attempt 1 out of 2
C=(3x-5)^2-36x^2
tìm x
Answer:
C = -27x^2 - 30x + 25
Step-by-step explanation:
C = (3x - 5)^2 - 36x^2
~Use FOIL
C = 9x^2 -30x + 25 - 26x^2
~Simplify
C = -27x^2 - 30x + 25
Best of Luck!
Plessse help, thanks
The profitability, P, of a popular restaurant franchise can be modeled by the function P (t) = t4 – 9t3 + 24t2 – 20t, where t is the number of months since the restaurant opened. How many months after the franchise opens will it begin to show a profit?
5 months
3 months
2 months
1 month
Replace t with the months given as choices to see which one gives a positive value as an answer.
P(1) = 1^4-9(1)^3 + 24(1)^2-20(1) = -4
P(2) = 2^4-9(2)^3+24(2)^2-20(2) = 0
P(3) = 3^4 -9(3)^3+24(3)^2-20(3) = -6
P(5) = 5^4-9(5)^3+24(5)^2-20(5) = 0
P(6) = 6^4-9(6)^3+24(6)^2-20(6) = 96
It shows a profit in month 6 so it would start showing a profit in month 5.
The answer is 5 months
find the area of the shades figure
Answer:
14,142.858
Step-by-step explanation:
(PLEASE HELP) Substitution and Evaluation, Complete the students work by dragging the numbers to the empty spaces
Answer:
boxes count from top to bottom
Where is the error in the solution below? Explain what the error is and solve the equation correctly. Be sure to check your answer.
Answer:
The error in the question is that in the second line, both sides are not multiplied by x. This causes an imbalance in the equation.
Step-by-step explanation:
[tex]\frac{5}{x}= x-4[/tex]
Multiply both sides by x.
[tex]x(\frac{5}{x}) = x(x-4)[/tex]
[tex]5= x^{2} -4x[/tex]
Subtract 5 from the equations.
[tex]x^{2} -4x-5=0[/tex]
Factorise the equation (Quadratics)
[tex](x-5)(x+1)=0[/tex]
Null Factor Law
[tex]x=5[/tex] or [tex]x=-1[/tex]
Here, we have to go through the equation and correct it:
Starting equation: 5/x = x - 4
Multiply both sides by x:
x * (5/x) = x * (x - 4)
[tex]5 = x^2 - 4x[/tex]
Move all terms to one side to set up a quadratic equation:
[tex]x^2 - 4x - 5 = 0[/tex]
Now, we have a quadratic equation that needs to be solved.
We can solve this quadratic equation using factoring, completing the square, or the quadratic formula.
In this case, let's use factoring:
(x - 5)(x + 1) = 0
This gives you two possible solutions:
x - 5 = 0 --> x = 5
x + 1 = 0 --> x = -1
So, the correct solutions for the equation 5/x = x - 4 are x = 5 and x = -1. The error in your solution was in the step where you multiplied by x; you didn't distribute x properly to both terms on the right side of the equation.
This causes an imbalance in the equation.
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If (x,2) is a solution to the equation -2x+4y=-8, what is the value of x
Answer:
x=8
Step-by-step explanation:
-2x+4y=-8
Let y = 2
-2x+4*2=-8
-2x+8=-8
Subtract 8 from each side
-2x+8-8=-8-8
-2x=-16
Divide by -2
-2x/-2 = -16/-2
x = 8
Determine the values of X, Y and Z on the following number line:
HH
X -11 Y 9 Z
Order 0.5, -1/7, -0.2, and 1/3 from least to greatest.
Hey there! I'm happy to help!
Let's convert the decimals to fraction form.
0.5=5/10=1/2
-1/7
-0.2= -2/10= -1/5
1/3
We know that the bigger the number in the denominator, the smaller the fraction is if the numerators are all the same.
First off, we have the negative numbers which are smaller than the other numbers. We have -1/7 and -1/5. We know that the 1/5 is a bigger fraction, but it is negatively bigger, so that is going to be the lesser number.
-1/5, -1/7
And with our bigger ones, we have 1/3 and 1/2. 1/2 is the bigger number here, so that will be the last one. Let's also be sure to convert back to our original forms! Here is our order :
-0.2, -1/7, 1/3, 0.5
Have a wonderful day and keep on learning! :D
What is the length of MO?
Select the best answer from the choices provided.
A.4
B.5.656
C.8
D.11.314
Answer:
D
Step-by-step explanation:
8^2+8^2=128
Square root of 128 is about 11.313
Someone help pleasee
Answer:
a: 7000
Step-by-step explanation:
5 year = 10, 6 months
700 x 10 = 7000
g=A/4
fous on a please
G = A/4
Solve for A by multiplying both sides by 4:
A = 4G
12. Observe the pattern made by the figures. Can
you write a conjecture about the number of
triangles formed by connecting one vertex of
a polygon with n sides to each of the other
vertices? SEE EXAMPLE 2
A
Number
of Sides:
3
4
5
6
Conjectures are used to form opinions about a certain subject. The conjecture from the given figure is that:
The number of triangles that can be formed by an n-sided shape is n - 2.
Given that:
[tex]n \to[/tex] number of sides
From the attached figures, we have the following observation.
3 sides - 1 triangle4 sides - 2 triangles5 sides - 3 triangles6 sides - 4 trianglesIf this pattern continues, the number of triangles for an n-sided shape will be: n - 2
Hence, the conjecture is:
The number of triangles that can be formed by an n-sided shape is n - 2.
Read more about conjectures at:
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Math geometry (10 points)
What is the area of this trapezoid? Please find the correct answer and equation.
Answer:
Step-by-step explanation:
1/6d+2/3=1/4=(d−2) what does d=
Answer:
1
6
d
+
2
3
=
1
4
⋅
(
d
−
2
)
Combine
1
6
and
d
.
d
6
+
2
3
=
1
4
⋅
(
d
−
2
)
Simplify
1
4
⋅
(
d
−
2
)
.
Tap for more steps...
d
6
+
2
3
=
d
4
−
1
2
Move all terms containing
d
to the left side of the equation.
Tap for more steps...
−
d
12
+
2
3
=
−
1
2
Move all terms not containing
d
to the right side of the equation.
Tap for more steps...
−
d
12
=
−
7
6
Multiply both sides of the equation by
−
12
.
−
12
⋅
(
−
d
12
)
=
−
12
⋅
(
−
7
6
)
Simplify both sides of the equation.
Tap for more steps...
d
=
14
What is the value of R? (Assume R > 0)
R/4=36/R
A)8
B)9
C)12
D) 20
The value of R is 12.
What are square roots?A value that yields the original number when multiplied by itself is known as the square root of a number. The square root is a backwards technique for figuring out a number. Thus, squares and square roots are connected ideas.
Given R/4 = 36/R
multiply both sides by R
R/4 x R = 36/R x R
R²/4 = 36
multiply both sides by 4
R²/4 x 4 = 36 x 4
R² = 144
so R = √144
R = 12
Hence R = 12 for given condition.
Learn more about square roots;
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X-2y-2=0 in slope-intercept form
Answer:
y = x/2 - 1
Step-by-step explanation:
Just throw everything to the right till only y is on the left side
X-2y-2=0
- 2y =-x+2
2y = x - 2
y = x/2 - 1
Can someone help me pls ASAP
IT
17) Between which two consecutive whole numbers does the length of the diagonal
fall? The length of the diagonal is between
a) 3 and 4 b) 4 and 5
c) 5 and 6 d) 6 and 7
V 18
기
D
Ос
Od
Answer:
4 and 5, closer to 4
Step-by-step explanation:
hope that helps>3
HELP FAST PLEASE
Colton has a bag that contains orange chews, lemon chews, and peach chews. He
performs an experiment. Colton randomly removes a chew from the bag, records the
result, and returns the chew to the bag. Colton performs the experiment 49 times.
The results are shown below:
A orange chew was selected 18 times.
A lemon chew was selected 6 times.
A peach chew was selected 25 times.
Based on these results, express the probability that the next chew Colton removes
from the bag will be orange or lemon as a decimal to the nearest hundredth.
Answer:
0.49
Step-by-step explanation:
just convert 24/49 into a decimal
I need help with 13
9514 1404 393
Answer:
g(x) = (x -3)² -6
Step-by-step explanation:
You know that a function f(x) is translated h units to the right when x is replaced by x-h.
g(x) = f(x-h) . . . . . translated h units right
You also know that a function f(x) is translated k units up when k is added to the function value.
g(x) = f(x) +k . . . . . translated k units up
__
Here, we want to translate f(x) 3 units right and 6 units down. Using the above relations, we will get ...
g(x) = f(x -3) -6
Using the given definition of f(x), this becomes ...
g(x) = (x -3)² -6
help plz ^^^^^^^^^^!!!!!!!
Answer:
refer pic
sorry for messy handwriting
hope it help u and i appreciate if you give brainliests, thanks
Change the mixed form into improper fraction.
[tex]3 \times \frac{3}{8} = [/tex]
Multiply the numbers. Round the answers to the nearest cent.
21. $4.50 X 30.25
22. $8.30 X 3.25
23. $14.50 X 32.5
Answer:
[tex]21. \: 136.1[/tex]
[tex]22. \: 27.0[/tex]
[tex]23. \: 471.3[/tex]
Remember to add "$" before the number.
guys PLEASE help my brain is trying to fall asleep on me rn and its due
Step-by-step explanation:
perimeter=a+b+c
p=10.5+15+(-5(x+11))
p=25.5-5x-55
p,=-5x-29.5
Find the sum of 8a –2b + 3c and –3a +4b –3c
Answer: 5a + 2b
Step-by-step explanation:
Given
(8a - 2b + 3c) + (-3a + 4b - 3c)
Expand parentheses
=8a - 2b + 3c - 3a + 4b - 3c
Put like terms together
=(8a - 3a) + (4b - 2b) + (3c - 3c)
Combine like terms
=5a + 2b + 0
=[tex]\boxed{5a+2b}[/tex]
Hope this helps!! :)
Please let me know if you have any questions
h(x)=x^2-x-1; h(2a+7)
Answer:
2
Step-by-step explanation:
By how much does x power 2 - ax +5 exceeed 3x power 2 -5x=6 I hope this helps :)
Please help me I’m struggling!
Collinear points lie on the same line. Find the value of k for which the following points are collinear: (k,3), (-3,2), (-1,1)
Answer:
Points lie on the same line if and only if the points are collinear
Step-by-step explanation: