Answer:
1. 3/8
Step-by-step explanation:
Total tossed times = 3
Total Possibilities = 8
Possibilities = (Head, Head, Head), (Tails,Tail,Tails), (Head,Head,Tails), (Head,Tail,Head), (Tails,Head,Head), (Head,Tail,Tail), (Tail,Tail,Head), (Tail,Head,Tail)
Number of options with a head and two tails = 3
So, Probability = Number of correct options ÷ Number of total possibilities
= 3 ÷ 8 or 3/8
Find x and y
(y+23)
(2x-17)
Answer:-2
Step-by-step explanation:
Bab needs help please!
Answer:
V =282.6 in ^3
Step-by-step explanation:
The volume of a cylinder is
V = pi r^2 h
We know pi = 3.14 r= 3 and h =10
V = 3.14* 3^2 *10
V =282.6
PLSS help !!!Which of the following correctly shows the first step when factoring 3ab + 3ac – 4db – 4dc by grouping?
Answer:
Factorise:
3a(b+c)-4d(b+c)
Last one.
Further on:
(3a-4d)(b+c)
The factor 3ab + 3ac – 4db – 4dc can be grouped as
a(3b + 3c) - d(4b + 4c).
What is the difference between factoring and grouping?
We can break large polynomials into groups that transmit a common factor. This allows us to factor each separate group, then mix like terms. This exists named factoring by grouping.
Given: 3ab + 3ac - 4db - 4dc.
Expanding the equation a(3b + 3c): 3ab + 3 a c
=3 a b+3 a c-d(4 b+4 c)
Expanding the equation -d(4 b+4 c): -4bd - 4cd
a(3b + 3c) - d(4b + 4c) = 3ab + 3ac - 4bd - 4cd
Therefore, the correct answer is option b) a(3b + 3c) - d(4b + 4c).
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Question 3(Multiple Choice Worth 4 points)
(05.01)The graph shows the distance a car traveled, y, in x hours:
A coordinate plane graph is shown. The x-axis is labeled time in hours ,and the y-axis is labeled distance in miles. The line passes through the points 2 comma 60, and 4 comma 120.
What is the rise-over-run value for the relationship represented in the graph?
20
30
1 over 20
1 over 30
Answer:
hello there,
the answer for this question would be 30
Step-by-step explanation:=
Given: The x-axis represents the time in hours and the y-axis represents the distance in miles.
The line passes through the points and
To find: The rise-over-run value for the relationship in the graph.
m=rise over run
=y2-y2/x2-x1
=120-60/4-2
= 60/2
= 30
Hope this helps. if correct please make me brainliest
thank you,
have a good day!!
A card is drawn from a standard deck. Find the probability of drawing a heart or a 7.
=======================================================
Explanation:
There are A = 13 hearts and B = 4 copies of "7"
The count A+B = 13+4 = 17 may seem like it's the count of hearts or "7" cards, but we're double counting the 7 of hearts. So the true count is actually 17-1 = 16
There are 16 cards we want (either a heart or a "7") out of 52 total. Therefore, the probability is 16/52 = (4*4)/(4*13) = 4/13
What is the range of 149 111 171 166 152 129 162 144
differentiate
f(x)= 186.5
Answer:
Hope this helps!
Step-by-step explanation:
f'(x)=0
Matt is saving to buy a new motorcycle. If he deposits $70 at the end of each month in an account that pays an annual interest rate of 3.5%, how much will he have in
60 months? Assume that the compounding is being done monthly
Answer:
bro I don't know. I just need the points so I can keep getting answers. good luck tho I guess.
3 in
The volume of
the figure is
cubic in.
6 in
3 in
3 in
7 in
16 in.
Answer:
6in is the cubic volume
Step-by-step explanation:
If I'm wrong just correct me
Which section of the graph represents the solution of the system of inequalities shown?
Answer:
Q
Step-by-step explanation:
5x+15y ≥ -20
Solve for y
15 y≥ -5x-20
Divide by 15
y ≥ -5x/15 -20/15
y ≥ -1/3 x -4/3
Y is greater than or equal to so shade above and on the line
4x-2y > 6
Solve for y
-2y > -4x+6
y < 2x -3
Shade below the line
The double shaded area is the solution
==========================================================
Explanation:
Let's focus on the inequality 4x-2y > 6
Plug in (x,y) = (0,0) to find that...
4x-2y > 6
4(0)-2(0) > 6
0 > 6
This is a false statement. So that means (0,0) is not in the shaded region for 4x-2y > 6. So we'll shade the opposite side of the dashed line to shade regions Q and R (i.e. stuff below the dashed line).
-----------------
Let's check the point (0,0) with the other inequality as well
[tex]5x + 15y \ge -20\\\\5(0) + 15(0) \ge -20\\\\0 \ge -20\\\\[/tex]
This is true because 0 is to the right of -20 on the number line.
So we'll shade regions P and Q to represent the solution set for this inequality. These regions are above the boundary line. Points on the boundary are also included.
------------------
To summarize so far, we found that
regions Q and R make 4x-2y > 6 true, regions P and Q make [tex]5x + 15y \ge -20\\\\[/tex] true.The overlap is region Q which is the final answer
Any point from region Q satisfies both 4x-2y > 6 and [tex]5x + 15y \ge -20\\\\[/tex] at the same time. A point on the solid boundary line is part of the solution set, but stuff on the dashed boundary line are not solution points.
Identify the vertex
Answer:
The vertex is (-2,10)
Step-by-step explanation:
The vertex is the maximum point on a downward facing parabola
The maximum is (-2,10)
The vertex is (-2,10)
219.44 in word form
Answer:
two hundred nineteen and 44
OR
two hundred nineteen point 44
Step-by-step explanation:
do not say AND before nineteen. saying AND represents a decimal point. Both can be used (point or and)
Please help! 8th grade geometry! Thank you<3
Answer:
Length of the hypotenuse - 10
Step-by-step explanation:
To find the hypotenuse, we need to use the Pythagorean theorem.
a^2 + b^2 = c^2
8^2 + 6^2 = c^2
64 + 36 = c^2
c^2 = 100
c = 10
The middle school is 2.72 kilometers from Marsha's house and 1.54 kilometers from Ryan's house. How much farther does Marsha live from the middle school than Ryan? Group of answer choices
Answer:
1.18 kilometers
Step-by-step explanation:
The middle school is 2.72 kilometers from Marshal house
The school is also 1.54 kilometers away from Ryan house
Therefore the distance of Marshal house from the school can be calculated as follows
= 2.72-1.54
= 1.18 kilometers
Find the value of X a,57
b,3
C,81
D,27
Answer:
D. 27
Step-by-step explanation:
sum of exterior angles = 360
2x + 56 + 57 + 85 + 4x = 360
6x + 198 = 360
6× = 360 - 198
6× = 162
× = 27
Evaluate the expression when a = -6 and b = 3 A -2b
Answer:
-6- (2(3))
-6-6=-12
Answer= -12
Step-by-step explanation:
A parabola and its focus are shown on the graph. The vertex of the parabola is at (0,0).
On a coordinate plane, a parabola opens to the right. It has a vertex at (0, 0) and a focus (3, 0).
What is the equation of the directrix of the parabola?
y = 3
y = –3
x = 3
x = –3
Answer:
y = -3
Step-by-step explanation:
the length from directrix to vertex is equal to the length from focus to the vertex.
Answer: y=-3
Step-by-step explanation: y = -3 Step-by-step explanation: the length to vertex is equal
If 2^x = 5, what is 2^3x - 4?
Answer:
the value of x is 2^9/4 then 2^3x-4=2^11/4
The formula to estimate organic growth is Pf=P0 . e^rt
MegaVax manufactures vaccinations. The microbe jagus rashii, is being grown for a vaccine against a new strain of influenza. Jagus rashii grows at a rate of 25.0% per hour. How long will it take for a culture of 1,349 jagus rashii to grow to a population of 75,709?
Express your answer to the nearest hundredth of an hour.
Answer:
16.12 hrStep-by-step explanation:
If I got it right, we have:
Formula Pf = P0*e^(rt)Pf = 75709P0 = 1349r = 25% = 0.25t = ?Substitute the given values and solve for t:
75709 = 1349*e^(0.25t)e^(0.25t) = 75709/1349e^(0.25t) = 56.1223ln e^(0.25t) = ln 56.12230.25t = 4.03t = 4.03/0.25t = 16.12 hrAt what point do these lines intersect? A
-24x - 4y =-164
y=41 - 6x
Answer:
Infinite points
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightDistributive Property
Equality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityAlgebra I
FunctionsTerms/CoefficientsSolving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
-24x - 4y = -164
y = 41 - 6x
Step 2: Solve for x
Substitute in y [1st Equation]: -24x - 4(41 - 6x) = -164[Distributive Property] Distribute -4: -24x - 164 + 24x = -164[Addition] Combine like terms: -164 = -164Here we see that -164 does indeed equal -164.
∴ We have an infinite amount of solutions.
Solve for x. Round to the nearest tenth, if necessary.
Answer:
Step-by-step explanation:
take 60 degree as reference angle
using cos rule
cos 60=adjacent/hypotenuse
1/2=80/x
x=80*2
x=160
Write an equation in slope-intercept form of
the line that passes through (-6,4) and
(-1,2).
Answer:
Step-by-step explanation:
(-6 , 4) & (-1 , 2)
Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
[tex]= \frac{2-4}{-1-[-6]}\\\\= \frac{-2}{-1+6}\\\\= \frac{-2}{5}[/tex]
m = -2/5 & (-6 , 4)
y -y1 = m(x -x1)
[tex]y - 4 = \frac{-2}{5}(x - [-6])\\\\y - 4 = \frac{-2}{5}(x + 6)\\\\y - 4 = \frac{-2}{5}x + 6*\frac{-2}{5}\\\\y = \frac{-2}{5}x -\frac{12}{5}+4\\\\y=\frac{-2}{5}x-\frac{12}{5}+\frac{4*5}{1*5}\\\\y=\frac{-2}{5}x-\frac{12}{5}+\frac{20}{5}\\\\y=\frac{-2}{5}x+\frac{8}{5}[/tex]
What is the value of X in the figure show
Answer:
x=11
Step-by-step explanation:
The equation for the problem is 4x-2=42. The angle (4x-2) is equal to 42 degrees because it is vertical to the angle with 42 degrees. If angles are vertical, they are equal to each other.
Add 2 to both sides of the equation.
4x+2=4x 42+2=44
Simplify.
4x=44
Divide 4 by both sides.
4x/4=x 44/4=11
Simplify to get the final answer.
x=11
_________________ polygons have congruent angles and proportional side lengths.
answers are:
Regular
Similar
Congruent
Parallel
Step-by-step explanation:
I think its similar
A community group sells 2,000 tickets for its raffle. The grand prize is a car. Neil and 9 of his friends buy 10 tickets each. When the winning ticket number is announced, it is found to belong to Neil's group. Given this information, what is the probability that the ticket belongs to Neil?
Answer:
1/10 if its is in the group
Step-by-step explanation:
but if its as the whole thing it would be 1/200 because he has 10 and 10 of 2000 is 1/200
The probability that the winning ticket belongs to Neil is 5%.
What is Probability?It is a branch of mathematics that deals with the occurrence of a random event.
There are a total of 2,000 tickets, and Neil and his 9 friends bought 10 tickets each, so they bought a total of 100 tickets (10 tickets/person x 10 people = 100 tickets).
The probability of Neil's group winning the car is equal to the number of tickets they bought divided by the total number of tickets sold:
Probability = Number of tickets bought by Neil's group / Total number of tickets sold
Probability = 100 / 2000
Probability = 0.05 or 5%
Therefore, the probability that the winning ticket belongs to Neil is 5%.
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Find the value of x.
please help stuck on probelem
=========================================================
Explanation:
Draw a horizontal line to cut the figure into a rectangle on top and a triangle down below.
The rectangle has length and width of 6 and 4 (horizontal and vertical components respectively). The area of this rectangle is 6*4 = 24 square units.
The triangle has a base of 6 and a height of 4. The base and height of any triangle are always perpendicular.
The area of the triangle is base*height/2 = 6*4/2 = 24/2 = 12 square units. If you were to cut out half of the triangle and rearrange things, you'll find that a rectangle can be formed. This rectangle is half in area that of the first rectangle we found. This is why we divide by 2 when finding the area of the triangle.
Once you know the two sub-areas, we add them up to get the overall area: 24+12 = 36 square units.
Help me solve this question for geometry !
Answer:
X²–49
Step-by-step explanation:
(x+7)(x-7)
x²+7x-7x-49
x²-49
Help
Will
Give
Brainlist
Answers
:)))))) and
Answer:
26%
Step-by-step explanation:
What's the special name for a quadratic that has one solution?