Answer:
75%
Step-by-step explanation:
Brandon enters bike races. He bikes 8 1/2 miles every 1/2hour. Complete the
table to find how far Brandon bikes for each time interval.
Answer:
1h = 8.5 x2 = 17
1 1/2h = 8.5 x3 = 25.5
2h = 8.5 x4 = 34
2 1/2h = 8.5 x5 = 42.5
Subtract 8 from 5 times a number. The result is 4 less than 3 times the number.
Answer: x =2
Step-by-step explanation:
5x - 8 = 3x - 4
2x = 4
x = 2
checking the work:
5(2) - 8 = 3(2) - 4
10 - 8 = 6 - 4
2 = 2
Factor each polynomial
Answer:
17g(2g + 1)(g + 1)
Step-by-step explanation:
34g^3 + 51g^2 + 17g
find a common factor, all of them have at least 1 g and they can all be divided by 17
17g(2g^2 + 3g + 1)
17g(2g + 1)(g + 1)
Find the third side in simplest radical form:
89
39
If f(x) = -8x + 2, then i
8x + 2. then '(x) =
What is this one
Answer:
as for the other stuff you need to update my 45=44
On the average, a grocer sells three of a certain article per week. How many of these should he have in stock so that the chance of his running out within a week is less than 0.01
Answer:
7
Step-by-step explanation:
This is a Poisson distribution problem with the formula;
P(x;μ) = (e^(-μ)) × (μ^(x))/x!
We are told that the grocer sells three of a certain article per week. Thus;
μ = 3
Now, we want to find out How many of these should he have in stock so that the chance of his running out within a week is less than 0.01.
This means;
P(X > k) < 0.01
This can be rewritten as;
P(X ≤ k) < 0.99
Let's try x = 8
P(8;3) = (e^(-3)) × (3^(8))/8!
P(8;3) = 0.008
But; P(X ≤ 8) = 1 - 0.008 = 0.992
This is more than 0.99 and thus is not the answer
Let's try x = 7
P(7;3) = (e^(-3)) × (3^(7))/7!
P(7;3) = 0.022
But; P(X ≤ 7) = 1 - 0.022 = 0.978
Thus is less than 0.99.
Thus, stock should be 7
How many area codes (ABC) would be possible if the first 2 digits can be any number 2-9 & last digit can be any number 0-9?
A. 640
B. 25
C. 729
D. 1000
x+2y=13
3x-5y=6
what is (x,y)?
Answer:
x+2y=13
Step 1: Add -2y to both sides.
x+2y+−2y=13+−2y
x=−2y+13
Answer:
x=−2y+13
Step 1: Add 5y to both sides.
3x−5y+5y=6+5y
3x=5y+6
Step 2: Divide both sides by 3.
3x
3
=
5y+6
3
x=
5
3
y+2
Answer:
x=
5
3
y+2
Step 1: Add -3x to both sides.
3x−5y+−3x=6+−3x
−5y=−3x+6
Step 2: Divide both sides by -5.
−5y
−5
=
−3x+6
−5
y=
3
5
x+
−6
5
Answer:
y=
3
5
x+
−6
5
Step-by-step explanation:
Answer:
(7, 3)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Algebra I
Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
x + 2y = 13
3x - 5y = 6
Step 2: Rewrite Systems
x + 2y = 13
Subtract 2y on both sides: x = 13 - 2yStep 3: Redefine Systems
x = 13 - 2y
3x - 5y = 6
Step 4: Solve for y
Substitution
Substitute in x: 3(13 - 2y) - 5y = 6Distribute 3: 39 - 6y - 5y = 6Combine like terms: 39 - 11y = 6Isolate y term: -11y = -33Isolate y: y = 3Step 5: Solve for x
Define equation: x + 2y = 13Substitute in y: x + 2(3) = 13Multiply: x + 6 = 13Isolate x: x = 7Which unit rate is the lowest price per ounce? (5 points)
Choice A: 21 ounces of raisins for $3.59
Choice B: 36 ounces of raisins for $4.79
Choice A
Choice B
The unit rates are equal.
The unit rates cannot be determined.
a
O
b
Od
Answer:
Choice B
Step-by-step explanation:
Choice A: 1 ounce of raisins for ~$0,17
Choice B: 1 ounce of raisins for ~$0,13
Find another way to name the plane M shown in the figure
Answer:
Plane RTS
Step-by-step explanation:
Answer: Choice D) Plane PQY
==========================================================
Explanation:
By definition, a plane is formed by 3 non-collinear points. The three points cannot all be on the same line. If you had 3 points on the same line, then infinitely many planes are possible. Imagine the plane spins around the line as a sort of fan blade.
Choice A can be ruled out because points R, T, and S are all on the same line. They are collinear points. Using these three points is not enough to properly identity/label this plane, since infinitely many other planes could result.
Choices B and C can also be ruled out for similar reasons.
Choice D is correct because points P, Q, and Y are all in plane M, and also because they are not all on the same line.
Side note: another way to phrase "a plane is formed by 3 non-collinear points" is to say "a plane is formed by 3 points that form a triangle".
-4y + 12 - 3y - 9 = ?
Options:
A: -7y +3
B: y - 3
C: 7y + 3
please show your work
YALL PLZ HELP WILL GIVE THANKS+BRANLIEST AND I REALLY NEED HELP! the length of the box is 2 1/2m, it is 1 9/16 times its width. what is the height of the box if its volume is 12 3/4m3?
Answer:
3.19 m
Step-by-step explanation:
L = 2.5
W x 25/16 = 2.5
w = 2.5 x 16 / 25 = 1.6
LWH = V
H = V / LW = (12 3/4) / (2.5 x 1.6) = 3.19
Terry says the solution to 299 ÷ 40 is 6 with a remainder of 59. His work is shown
below. Explain Terry’s error in thinking, and then find the correct quotient using
the space on the right.
299 / 40 (using long division)
Out of 482 employees at the Coca Cola plant 37 are taking a vacation next week what percentage of employees are not vacationing
Answer:
92.3% are not vacationing
Step-by-step explanation:
482 - 37 = 445
445 * 100 / 482 = 92.3
Can sum kne s help I need it
Step-by-step explanation:
-17z - 12 + 15z = -12 - 2z
-2z - 12 = -2z - 12
-12 = -12
Since this statement is always true for all real values of z, there are infinitely many solutions.
i need help with a function
Answer:
one: 9
Two: D
Step-by-step explanation:
One
The symbol used is x≥8 so 8 is included in the function part. That would mean that F(x) = 9
Two
The value you need to use is -4x + 3. That's because -2≤x and the symbol ≤ makes - 2 inclusive.
-4(-2) + 3 = 8 + 3 = 11
3a
The function is decreasing over -4x + 3
It goes from 11 to -29 roughly. That means it's going from a positive to negative number. Definitely decreasing
3b
The function is a constant when x≥8. The value of the function is 9 no matter what x is.
3c
The function is increasing from - 2x to 8 which is going from -9 to 11
Whats the decimal expansion for fraction 7/9?
Answer:
0.7777777777778
Step-by-step explanation:
or the line over the last 7
7 x [(7+7) divided 7] =
BIDMAS
Step-by-step explanation:
FIRST DO 7+7÷7 AND TIMES THE ANSWER BY 7
Answer:
14
Step-by-step explanation:
323.23 which is the digit in the hundreds
Answer:
3. iwjsndudinwksjdj
Step-by-step explanation:
sorry it has to be around 20 letters
Please help would mean a lot
Answer:
C maybe.........
Step-by-step explanation:
Answer:
The principle that guides Supreme Court justice to follow precedent when ruling on cases is called Stare decisis
WILL MARK BRAINLIEST! please help! Find the measure of the indicated angle to the nearest degree.
Answer:
14
Step-by-step explanation:
What is the length of each leg of the triangle below?
Answer:
F
Step-by-step explanation:
Giving 15 point please help
Answer:
8. x=-5 and y=7
9. x=-2 and y=0
10. x=-6 and y=-10
11. x=8 and y=-4
12. x=9 and y=-9
13.x=4 and y=10
14. x=5 and y=-7
Step-by-step explanation:
ASAP Which inequality is shown in the graph
Answer:
sorry im not usre
Step-by-step explanation:
Answer:
y=-2x-3
Step-by-step explanation:
for the slope you count up 2 he count to the left 1 from the y-intercept
and for the y-intercept you look for the points of the line that cross the y Line
help please please help
9514 1404 393
Answer:
x = 6
Step-by-step explanation:
The angle bisector divides the triangle proportionally. Here, the top segment on each half is double the length of the bottom one, (8 = 2·4), so ...
x = 2·3
x = 6
_____
If you like, you can write that as a proportion:
x/3 = 8/4
x = 3(8/4) = 3·2 . . . . . multiply by 3 to get x by itself
x = 6
Is -2.25 - (-3) a positive number
Answer:
Yes it is
Step-by-step explanation:
The answer is 0.75
-2.25-(_3)
_2.25 +3
=0.75
Answer:
0.75
Step-by-step explanation:
cuz why not
What’s the value of 2/3 * 1/8
Answer:
The simplified value is 1/12.
Step-by-step explanation:
Since we need to multiply these fractions, we can just multiply the numerators and denominators together in order to find the answer.
2/3 x 1/8 =
2/24 =
1/12
Therefore, the simplified value is 1/12.
Hope this helps! :D
Please help its math!!! hard question pls.
What is the answer to this equation?
2 + 3
Answer:
the answer is 5
Step-by-step explanation:
it is very simple question
PLEASE HELP WILL MARK BRAINLIEST
Answer:
b,a,c
Step-by-step explanation:
Which expression is equivalent to (1/2(cos(pi/5)+ i sin(pi/5)))^5
a. 1/32(cos(pi/5) + i sin (pi/5))
b. 1/32(cos(pi) + i sin (pi))
C. 1/10(cos(pi/5) + i sin (pi/5))
d. 1/10(cos(pi) + i sin (pi))
Answer:
B
Step-by-step explanation:
did the course
The equivalent complex expression of [tex](\frac{1}{2}(cos(\frac{\pi}{5} )+i~sin(\frac{\pi}{5} )) )^5[/tex] is
[tex]\frac{1}{32} (cos(\pi)+i~sin(\pi))[/tex]
The correct answer is an option (b)
What is complex number?"The number of the form a + ib, where a, b are real numbers and [tex]i=\sqrt{-1}[/tex]"
What is De Moivre's theorem?"This theorem gives a formula for computing powers of complex numbers.
[tex](r(cos\theta+i~sin\theta))^n=r^n~(cos(n\theta)+i~sin(n\theta))[/tex] "
For given question,
We have been given a complex expression [tex](\frac{1}{2}(cos(\frac{\pi}{5} )+i~sin(\frac{\pi}{5} )) )^5[/tex]
Using the DeMoivre's theorem,
[tex](\frac{1}{2}(cos(\frac{\pi}{5} )+i~sin(\frac{\pi}{5} )) )^5\\\\=(\frac{1}{2})^5~((cos(\frac{\pi}{5} )+i~sin(\frac{\pi}{5} )) )^5\\\\=\frac{1}{32} (cos(\frac{5\pi}{5} )+i~sin(\frac{5\pi}{5} )) )\\\\= \frac{1}{32} (cos(\pi)+i~sin(\pi))[/tex]
Therefore, the equivalent complex expression of [tex](\frac{1}{2}(cos(\frac{\pi}{5} )+i~sin(\frac{\pi}{5} )) )^5[/tex] is
[tex]\frac{1}{32} (cos(\pi)+i~sin(\pi))[/tex]
The correct answer is an option (b)
Learn more about the De Moivre's theorem here:
https://brainly.com/question/17211848
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