Answer:
4 + 4 0
Step-by-step explanation:
Simplify
1
Eliminate redundant parentheses
( + 1 5 ) + ( + 5 ) + ( + 1 5 ) + ( + 5 )
2
Add the numbers
3
Combine like terms
Solution
4 + 4 0
A small college has 800 students, 10% of which are left-handed. Suppose they take an SRS of 8 students.
Let L = the number of left-handed students in the sample.
Which of the following would find P(L = 2)?
Answer:
Step-by-step explanation:
Probability of finding 2 left handed students out of 8 samples is 0.1488 or 14.88%.
What is Binomial Distribution?Binomial distribution is the distribution of a random variable X for which there are only two possibilities. The probability p for the success and the probability of 1-p for the failure, which consist of n trials.
Given,
Number of students in the college = 800
10% of which are left handed.
Probability of finding left handed student = 10% = 0.1
p = 0.1
q = 1 - 01 = 0.9
Number of samples, n = 8
We have to find P(x = 2)
The formula to calculate binomial distribution is,
P(x) = ⁿCₓ pˣ qⁿ⁻ˣ
P(x = 2) = ⁸C₂(0.1)²(0.9)⁶
= 28 × (0.1)²(0.9)⁶
= 0.14880348
≈ 0.1488
Hence the probability is 0.1488.
Learn more about Binomial Distribution here :
https://brainly.com/question/14565246
#SPJ7
Help please is for now
Solve the following system of equations with the substitution method
The time it takes for a ferry to reach a summer resort from the mainland is Normally distributed with mean 2 hours and standard deviation 12 minutes. The advertised duration of the trip is 2 hours and 15 minutes. The company operating the ferry would like to increase its operational efficiency by reducing the standard deviation so that they are on time 95% of the time. How much do they have to reduce the standard deviation
Answer:
2.88 minutes
Step-by-step explanation:
Solution can be found in attachment.
Find the approximate area of the triangle.
30 square
15 square
21 square
45 square
Answer:
A
Step-by-step explanation:
Hard to explain xD
Cheryl Wilcox is planning for her retirement, so she is setting up a payout annuity with her bank. She wishes to receive a payout of $1,500 per month for twenty years.
(a) How much money must she deposit if her money earns 8% interest compounded monthly? (Round your answer to the nearest cent.)
(b) Find the total amount that Cheryl will receive from her payout annuity.
Answer:
35h6j7jhtgr54y6htsrhr6wrttttwy
Step-by-step explanation:
In △ABC, m∠A = 15, b = 19, and c = 12. Find a to the nearest tenth.
A) 64.5
B) 16.9
C) 30.7
D) 8.0
SHOW WORK PLS
The answer is B.
Step-by-step explanation:
Yes
which expression is equal to 1/6?
Answer:
0.16
Step-by-step explanation:
The diameter of the planet Mercury is 4.87×103 kilometers. The diameter of the planet Venus is 1.21×104kilometers. The diameter of the planet Earth is 1.28×104 kilometers. The diameter of Mars is 6.79×103 kilometers. Which planet has the smallest diameter?
Question 2 options:
Mars
Mercury
Venus
Earth
Answer: Venus
Step-by-step explanation:
Answer:
Mercury, then MarsStep-by-step explanation:
Given diameters of planets:
Mercury ⇒ 4.87 × 10³ km = 4 870 kmVenus ⇒ 1.21 × 10⁴ km = 12 100 kmEarth ⇒ 1.28 × 10⁴ km = 12 800 kmMars ⇒ 6.79 × 10³ km = 6 790 kmCompared, we see the smallest value belongs to Mercury
The second smallest planet is Mars
Please help me with this question
Answer:
$13.50
Step-by-step explanation:
Answer:
m = 13.50$
Step-by-step explanation:
26.50 + m = 40
m = 40 - 26.50
m = 13.50$
The measure of
What is the measure of
A 115°
B 230°
C 65°
D 25°
Answer:
A) 115
Step-by-step explanation:
Straight lines = 180 degrees
180 - 65 = 115 degrees
R = 115 degrees
Hope this helped! Have a nice day, and plz mark as brainliest if correct!!!
-Lil G
Answer:
230° because i am very expert in math and this is very easy question for me so the answer is 230°
i have ask my teacher too and he told the right answer is 230°.
Find the measure of exterior 1.
Answer:
90 degrees
Step-by-step explanation:
A.P.E.X
Given that r is directly proportional to
y and inversely proportional to Z,
x= 15 when y = 10 and Z= 4, find
the equation connecting x, y and Z.
Given:
x is directly proportional to y and inversely proportional to z.
x= 15 when y = 10 and z= 4.
To find:
The equation that connecting x, y and z.
Solution:
It is given that, x is directly proportional to y and inversely proportional to z.
[tex]x\propto \dfrac{y}{z}[/tex]
[tex]x=\dfrac{ky}{z}[/tex] ...(i)
Where, k is the constant of proportionality.
We have, x= 15 when y = 10 and z= 4.
[tex]15=\dfrac{k(10)}{4}[/tex]
[tex]15\times 4=10k[/tex]
[tex]60=10k[/tex]
Divide both sides by 10.
[tex]\dfrac{60}{10}=k[/tex]
[tex]6=k[/tex]
Putting k=6 in (i), we get
[tex]x=\dfrac{6y}{z}[/tex]
Therefore, the required equation is [tex]x=\dfrac{6y}{z}[/tex].
Find the areas of these trapezoids
Answer:
Pink = 12 square units
Blue = 10.5 square units
Step-by-step explanation:
(2+4)/2=3
3x4=12
(2+5)/2=3.5
3.5x3=10.5
Answer:
Blue is 42 and pink is 48
Step-by-step explanation:
the squares are 2x2 which is 4 so each square is 4
Create an equation for a line that is parallel to the line �� = −32�� − 5.
Answer:
can u type it again
Step-by-step explanation:
In the cylinder, the radius of the circular base is 3.5 centimeters, and the height of the cylinder is 11 centimeters. The volume of the cylinder is
Answer:
33.69[tex]\pi[/tex] or 105.83
Step-by-step explanation:
Volume for a cylinder is
V= [tex]\pi r^{2}h[/tex]
we need to find the radius from the base
B = 2[tex]\pi[/tex]r
B= 3.5/2 = 1.75
V =[tex]\pi 1.75^{2}*11[/tex]
V = 33.69[tex]\pi[/tex] or 105.83 depending if you want it in pi for or not
Can someone help me? I’ll reward points + brainalist
Solve for the value of x.
Answer:
x=4/3
Step-by-step explanation:
9x+8=12x+4
Subtract 8 from both sides;
9x+8-8=12x+4-8
Simplify;
9x=12x-4
Subtract 12x from both sides;
9x-12x=12x-4-12x
Simplify;
-3x=-4
Divide both sides by -3
-3x/-3=-4/-3
Simplify;
x=4/3
A school principal of 890 students needs to determine what percentage of students passed and did not pass a statewide examination. Round to the nearest percent.
If 300 students passed the exam, what percent passed the test?
Answer:
34
Step-by-step explanation:
300\890
then x100
33.70786517
round to the nearest whole number
Need help on this question
"take a number x, double it and then take that result away from 10"
Write as an expression
Word Problem:
Take a number, x, double it and then take that result away from 10.
Expression:
[tex]10-(2x)[/tex]
HELP!!———————————————
Answer:
C
Step-by-step explanation:
If I am understanding the question, it is just asking what the possible choices are, and how many of each.
Help me please I give brainliest and be serious
Answer:
y=120
Step-by-step explanation:
y=0.75x-0.15x
x=200
y=0.75x200-0.15x200
y=150-30
y=120
I hope this helps :D
What is the simplest form of (4x3 + 6x – 7) + (3x3 – 5x2 – 5x + 9)?
A. 7x3 – 5x2 – x + 2
B. 7x3 – 5x2 + x + 2
C. 7x3 + x2 – 5x + 2
D. 7x6 – 4x2 + 2
Answer:
The simplest form is A.
Step-by-step explanation:
Most likely, it would have the exponent, like x^2 (just an example).
Hope it helped!
Answer:
Look at picture
Step-by-step explanation:
These triangles are
congruent by the
triangle congruence
postulate [? ]
Answer:
Option A
Step-by-step explanation:
From the picture attached,
In the given triangles ABC and ADC,
m(∠B) = m(∠D) [Given]
AC ≅ CA [Reflexive property]
But in the absence of third property of congruence ΔABC and ΔADC can't be congruent.
Option A is the answer.
Factorise the following.
Answer:
This is your answer
. You need 1/12 yard of ribbon to make one bow. You have 5/6 yard of ribbon. How many bows are you able to make with the ribbon you have? *
Answer:
You can make 14 with some ribbon left over.
Step-by-step explanation:
A rectangle has an area of 170.2m2
One of the sides is 3.7m in length.
Work out the perimeter of the rectangle.
Answer:
here
Area = 170.2 M2
Area of rectangle = l *b
let l= 3.7m
170.2 = 3.7* b
b= 46m
now , perimeter = 2(l+b)
= 2( 3.7 + 46)
= 99.4 m
Raul is pouring concrete
Answer:
wow-
Step-by-step explanation:
Bet he's doing a good job ;)
pls help me i rly need help
Answer: 1 1/2 cans of paint
Step-by-step explanation:
50*59*48*14= 1982.4
So that about 1 1/2 or 2 cans.
