Answer: the answer is 10.54 I think
Step-by-step explanation:
Suppose you have a bag containing 2 black marbles and 3 red marbles. You reach into the bag, select a marble, see what color it is and replace it in the bag. Then you repeat this process a second time. What is the probability of picking a red marble both times?
Answer:
[tex]\dfrac{9}{25}[/tex]
Step-by-step explanation:
Given that the bag contains black and red marbles.
Number of black marbles in the bag = 2
Number of red marbles in the bag = 3
Total number of marbles in the bag = Number of black marbles + Number of red marbles = 2 + 3 = 5
Let us have a look at the formula for probability of an event E, which can be observed as:
[tex]P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}[/tex]
[tex]P(\text{First red marble}) = \dfrac{\text{Number of red marbles}}{\text{Total number of marbles}} = \dfrac{3}{5 }[/tex]
Now, the marble chosen at first is replaced.
Therefore, the count remains the same.
[tex]P(\text{Second red marble}) = \dfrac{\text{Number of red marbles}}{\text{Total number of marbles}} = \dfrac{3}{5}[/tex]
Now, the required probability can be found as:
[tex]P(\text{First red marble})\times P(\text{Second red marble}) = \dfrac{3}{5}\times \dfrac{3}{5} = \bold{\dfrac{9}{25} }[/tex]
The figure is cut into 12 equal pieces shade in 5/6 of the figure
Answer:
You would need to shade in 10 pieces out of 12.
Step-by-step explanation:
10 out of 12 shaded pieces is usually the equivalence 5/6 when it is divided by 2.
Identify the range of the function shown in the graph.
A. Y>0
B. -2
C. Y is all real numbers
D. {-2,2}
Answer:
I think is d or a
Step-by-step explanation:
The average temperature in Lincoln in July is 85 degrees. Last Wednesday, it was 90 degrees. Today it was 15 degrees cooler than last Wednesday. What was the temperature today?
Answer:
[tex]75^{\circ}\text{F}[/tex]
Step-by-step explanation:
Last Wednesday it was 90 degrees Fahrenheit.
Today it is 15 degrees Fahrenheit colder than it was last Wednesday.
So, today's temperature will be the difference of the temperatures of last Wednesday's and today's temperature. We have to find the difference as it is colder today means it is a lower temperature than last Wednesday's.
[tex]90-15=75^{\circ}\text{F}[/tex]
Today's temperature is [tex]75^{\circ}\text{F}[/tex]
The canoe costs $96 for 8 hours. How much does it cost per hour?
Answer:
$12
Step-by-step explanation:
just divide 96÷8=12
Answer: 12
96/8=12
12 is the unit rate per hour
log⁵(1/125)=?
solve this for me
Answer:
by the way am learning it.for more and other answer follow me
Step-by-step explanation:
log5 1/125 = x
Rewrite log5 1/125 :
1/125 = 125^-1
This gives:
log 5 (125^-1) , bring down the power
-1 (log5 125) , rewrite 125 in term of power of 5
-1 (log5 (5^3), again bring down the power
(-1*3)(log5 5), note log5 5 = 1
Answer: x = -3
The centre of this circle is marked with a cross (*).
Label the lines drawn using the correct circle vocabulary
Answer:
one is radius and the other is chord
Step-by-step explanation:
Which of the following ratios is equivalent to 2:3
A) 1/2
B) 4/6
C) 12/13
D)20/25
Answer:
B:4/6
Step-by-step explanation:
Answer:
B)4/6
Step-by-step explanation:
Solve the problem
3 x 5/8
Answer:
1.87500
Step-by-step explanation:
How do you find x in the photo below?
214 g = ? kg please help
Answer:
0.214 kg
Step-by-step explanation:
What is the solution for the system of equations shown below?
2x + y = 3
x + 1/2y = 3/2
Answer:
y=3-2x
any more help just ask :)
What is the value of iota to the power 19 + iota to the power 20
Answer:
1 - i
Step-by-step explanation:
[tex] {i}^{19} + {i}^{20} \\ \\ = {i}^{18} .i + {i}^{20} \\ \\ = {( {i}^{2} )}^{9} .i + {( {i}^{2} )}^{10} \\ \\ = {( - 1)}^{9} .i + {( - 1)}^{10} \ \\ ( \because \: {i}^{2} = - 1) \\ \\ ( - 1).i + 1 \\ \\ = - i + 1 \\ \\ = 1 - i[/tex]
Write the equation of the line passing through the points (2,-5) (3,-1)
Answer:
they give you two points... so use the point slope formula with one on the points
y - y1 = m ( x - x1)
Step-by-step explanation:
find the slope m
m = y2 -y1 / x2-x1
from the given.. x1=2 and y1 = -5
x2 = 3 and y2 = -1 then,
m = -1 -( -5) / 3 - 2
m = 4/1
m = 4
now plug in to the point slope formula either of the points... I'll use the 1st point
y - 2 = 4(x -(-5))
y -2 = 4(x +5)
y -2 = 4x +20
y = 4x +22
there you go... see? :) also why are you working on HW now.. ?? :/ isn't it winter break?
In the system of equations below, I want to eliminate the variable y.
3x + 5y = 2
6x - 10y = -16
The first step to solving this system of equations is multiplying the first equation
by a number other than -1. Which number would that be?
The answer choices are..
-2
5
-5
2
0 -5
2.
Answer:
(x,y)=(-1,1)
Step-by-step explanation:
Given that,
3x + 5y = 2 .....(1)
6x - 10y = -16 ....(2)
Finding the value of x from equation (1).
[tex]x=\dfrac{2-5y}{3}[/tex]
Put the value of x in equation (2)
[tex]6(\dfrac{2-5y}{3}) - 10y = -16\\\\2(2-5y)-10y=-16\\\\4-10y-10y=-16\\\\-20y=-16-4\\\\y=1[/tex]
Put the value of y in equation (1) :
[tex]3x + 5(1) = 2\\\\3x=2-5\\\\3x=-3\\\\x=-1[/tex]
So, the solution of the equations is (-1,1).
Line m is the perpendicular bisector of segment AB. What is the value of
x?
m
3x+77
X
6x -25
A
B
X=
Answer:
x=34
Step-by-step explanation:
m is a perpendicular bisector that basically cuts ab right down the middle creating two equal parts
using this info, u now know that 3x+77 and 6x+25 are equal to each other
3x+77=6x-25
77=3x-25
102=3x
x=34
f(x) = 4x + 2; Find f (8)
Answer:
f(8) = 34
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Function NotationStep-by-step explanation:
Step 1: Define
f(x) = 4x + 2
f(8) is x = 8
Step 2: Evaluate
Substitute: f(8) = 4(8) + 2Multiply: f(8) = 32 + 2Add: f(8) = 34HELP! WILL MARK BRAINLY EST!
Answer:
answer: B
Step-by-step explanation:
what is the correct answer?
Given:
The function is
[tex]f(x)=(x+3)^2(x-5)^6[/tex]
To find:
The zeros of the given function.
Solution:
The general form of polynomial is
[tex]P(x)=a(x-c_1)^{m_1}(x-c_2)^{m_2}...(x-c_n)^{m_n}[/tex] ...(i)
where, a is a constant, [tex]c_1,c_2,...,c_n[/tex] are zeros of respective multiplicities [tex]m_1,m_2,...,m_n[/tex].
We have,
[tex]f(x)=(x+3)^2(x-5)^6[/tex]
On comparing this with (i), we get
[tex]c_1=-3,m_1=2[/tex]
[tex]c_2=5,m_2=6[/tex]
It means, -3 is a zero with multiplicity 2 and 5 is a zero with multiplicity 6.
Therefore, the correct option is B.
find the midpoint (8, -6) (6,5)
Solve for X Need help ASAP
decide whether or not it is a function.
Answer:
ITS NOT A FUNCITIONNJNNN GIVE ME BRAINLY NESSES
Step-by-step explanation:
The population of a city was approximately 232,000 people, and it increased by 8% in one year. What was the new populatio
Answer:
250560
Step-by-step explanation:
232000*1.08=250560
A certain ceiling is made up of tiles. Every square meter of ceiling requires 10.75 tiles. A certain ceiling is made up of tiles. Every square meter of ceiling requires 10.75 tiles. What is the constant of proportionality?
Answer:
10.75 tiles per square meter
Step-by-step explanation:
Here, we want to get the constant of proportionality
From the question, we are told that every square meter needs 10.75 tiles
The constant of proportionality in this case is thus;
10.75 tiles per square meter
how many sides has a regular polygon whose sum of interior angles is 540degrees
A family went to a baseball game. They parked the car in a parking lot which charged $5. The cost per ticket was $21. Write an equation for the total cost of going to the baseball game, where y is the total cost and x is the total number of people.
Answer:
y=21x+5
Step-by-step explanation:
Plz help due today!
Complete the linear function graphed below
Y=__x+__
Answer: -0.5x+16
Step-by-step explanation:
Answer:
Y = -1/4x + 16
Step-by-step explanation:
Hope this helps. Pls give brainliest.
The perimeter of a circular garden is 440m. A path 1.4m runs inside the park. find the cost of gravelling the path at the rate of Rs.100 per square meter.
Answer:
Cost = Rs. 6095.95
Step-by-step explanation:
We are given the perimeter as 440m.
Mow,perimeter of a circle is also called circumference.
Formula for circumference of a circle is;
C = 2πR
Thus:
2πR = 440
R = 440/2π
R = 70 m
We are told that A path 1.4m runs inside the park. Thus radius of smaller circle: r = 70 - 1.4 = 68.6 m
Area of larger circle: A1 = πR² = π(70²)
A1 = 4900π
Area of smaller circle: A2 = πr² = π(68.6²)
A2 = 4705.96π
Area of path = A1 - A2
Area of path = 4900π - 4705.96π
Area of path = 194.04π Sq.m
We want to find the cost of gravelling the path at the rate of Rs.100 per square meter.
Thus;
Cost = 100 × 194.04π
Cost = Rs. 6095.95
Please help:)...........
Part (a)
Answer: x = 0-----------------
Work Shown:
[tex]3\left(\frac{x}{7}+2\right) = 6\\\\\frac{x}{7}+2 = \frac{6}{3}\\\\\frac{x}{7}+2 = 2\\\\\frac{x}{7} = 2-2\\\\\frac{x}{7} = 0\\\\x = 7*0\\\\x = 0\\\\[/tex]
In step 2, I divided both sides by 3. In step 4, I subtracted 2 from both sides. In step 6, I multiplied both sides by 7.
================================================
Part (b)
Answer: x = 3-----------------
Work Shown:
[tex]2\left(\frac{5x}{3}-1\right) = 8\\\\\frac{5x}{3}-1 = \frac{8}{2}\\\\\frac{5x}{3}-1 = 4\\\\\frac{5x}{3} = 4+1\\\\\frac{5x}{3} = 5\\\\5x = 3*5\\\\5x = 15\\\\x = \frac{15}{5}\\\\x = 3\\\\[/tex]
The steps are fairly similar to part (a). The steps were
divide both sides by 2 (step 2)add 1 to both sides (step 4)multiply both sides by 5 (step 6)divide both sides by 5 (step 8)Heather buys 12 patio chairs for $366. Each chair costs the same amount. Part A Which equation represents the best estimate for the cost of each chair?
Answer:
[tex]C=\dfrac{366}{12}[/tex] = $30.5
Step-by-step explanation:
It is given that,
The cost of 12 patio chairs is $366.
We need to find the equation that represents the cost of each chair.
As each chair costs the same amount. It means we can find the cost of each chair by dividing total cost of 12 chairs divided by 12 i.e.
[tex]C=\dfrac{366}{12}[/tex]
So, it is the required equation. If we solve it, we get $30.5. Hence, the cost of each chair is $30.5