Answers
Answer:
9
Step-by-step explanation:
Related Questions
Examine the quadratic equation LaTeX: 9x^2+12x+4=0
A: What is the discriminant of the quadratic equation?
B: Based on the discriminant, how many roots does the equation have?
C: State whether the root(s) are real or complex.
Be sure to answer all parts!
Answers
Help !
10% of electric light bulbs are defective at manufacturer. A random sample of 8 light bulbs are chosen and tested. Find the probability that at least 3 are defective.
Answers
Answer:
0.0381
Step-by-step explanation:
This is a binomial probability distribution problem. Thus;
p = 10% = 0.1
We are told that A random sample of 8 light bulbs are chosen and tested. Thus, n = 8
We want to find the probability that at least 3 are defective. This will be;
P(X ≥ 3) = P(3) + P(4) + P(5) + P(6) + P(7) + P(8)
P(X = x) = C(n, x) × p^(x) × (1 - p)^(n - x)
Thus;
P(3) = C(8, 3) × 0.1³ × (1 - 0.1)^(8 - 3)
P(3) = C(8, 3) × 0.1³ × 0.9^(5)
P(3) = 0.03306744
Repeating this same procedure, we have;
P(4) = 0.0045927
P(5) = 0.00040824
P(6) = 0.00002268
P(7) = 0.00000072
P(8) = 0.00000001
Thus;
P(X ≥ 3) = 0.03306744 + 0.0045927 + 0.00040824 + 0.00002268 + 0.00000072 + 0.00000001 = 0.03809179
Approximately 0.0381
—4 + 5 — 7 = 10 + 3х – 2х
Answers
Answer:
X= -4.66666667 or 5 when rounded to the nearest whole number.
Step-by-step explanation:
-4+5-7=10+3x-2
-11+5=8+3x
-6=8+3x
-6-8=8-8+3x
-14=3x
X= -4.66666667 or 5 when rounded to the nearest whole number.
a jar contains 6 red jelly beans, 6 green beans, and 6 blue jelly beans if we choose a jelly bean, then another jelly bean without putting the first one back in the jar, what is the probability that the first jelly bean will be green and the second will be green as well
Answers
======================================================
Explanation:
We have 6 green out of 6+6+6 = 18 total
The probability of getting green is 6/18 = 1/3.
After selecting that green jelly bean and not putting it back, we have 6-1 = 5 green out of 18-1 = 17 total.
The probability of selecting another green is 5/17.
Multiply the two fractions 1/3 and 5/17
(1/3)*(5/17) = (1*5)/(3*17) = 5/51
The probability of selecting two greens in a row is 5/51 where we do not put the first selection back. We also do not replace the green jelly bean with some other identical copy.
Note: 5/51 = 0.098039 approximately
Answer:
The answer is your face try again loser
Step-by-step explanation:
Jasmine really wants to make an A in her college math class. The class has 6 exam grades that make up the final grade. So far, she has made an 83, 94, 96, 85, and a 81. Is it possible for her to make an A in the class if the cut off for an is 90 and the highest possible grade on a test is 100?
Answers
Multiply .90 (90 percent) by 600 (total points all semester) to see how many points she must earn. You’ll get 540.
Add the scores she’s got already and subtract from 540.
I get 439. She needs 540 and the most she could possibly make is 539.
So no...unless her teacher rounds. :)
<1 and <2 form a linear pair. If m<1= 4m<2, find the measure of each of the two angles.
Answers
Answer:
The angle ∠1 = x = 36°The angle ∠2 = 4x = 4(36°) = 144°Step-by-step explanation:
We know that when two lines meet or intersect, we get a linear pair of angles.
Linear pairs are basically two adjacent angles that form a line.
The measure of two adjacent angles forming a straight line is 180, meaning they are supplementary.
We are given that <1 and <2 forms a linear pair, and
m∠1 = 4m∠2
It means the angle ∠1 is 4 times the measure of angle ∠2.
Let the angle ∠1 be = x
As the angle 1 is 4 times the measure of angle ∠2, so
The angle 2 will be = 4x
As <1 and <2 forms a linear pair, thus the measure of the sum of <1 and <2 will be 180°, so
x + 4x = 180
5x = 180
divide both sides by 5
5x/5 = 180/5
x = 36°
Therefore,
The angle ∠1 = x = 36°The angle ∠2 = 4x = 4(36°) = 144°Someone plz help me
Answers
If each triangle in the figure is equilateral, the perimeter of the figure would be 18 inches.
Answer:
18 inches
Step-by-step explanation:
1. Multiply 3 by 6
3 x 6 = 18
2. Get answer of 18
18 inches
What can you conclude about DB?
Answers
BD bisect AC
Option B is the correct answer.
What is a triangle?It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.
We have,
From the figure,
FA is perpendicular to BC.
CFA is a right angle.
We see that BD bisects AC such that AD = CD.
Thus,
BD bisects AC
Learn more about triangles here:
https://brainly.com/question/25950519
#SPJ6
The chemistry teacher decides to use chalk paint to cover a circular portion of a wall in the science lab. If the greatest distance
across the circle is is 3 feet, approximately how many square feet will the chalk paint cover?
Answers
Answer: 7ft
Step-by-step explanation:
i just did it
The maximum area covered will be 9 ft².
What is the area of circle?The region that a circle occupies in a two-dimensional space is known as the area of the circle.
The area of circle is -
A = πr²
Given:
The chemistry teacher decides to use chalk paint to cover a circular portion of a wall in the science lab.
If the greatest distance across the circle is is 3 feet.
We can write the maximum area covered as -
A = πr²
A = 3.14 x 3 x 3
A = 9 ft² {approx.}
So, the maximum area covered will be 9 ft².
Learn more about Areas here:
brainly.com/question/29014197
#SPJ5
Please help with this question.
Answers
Answer:
7/1000
Step-by-step explanation:
1 m = 1000 mm
Therefore,
Scale factor = 7/1000
A group of workers can plant 7 1/2
acres in 3
1/8
days.
What is the unit rate in acres per day?
Write your answer as a fraction or a mixed number in simplest form.
Answers
NEED ASAP!!!
If you were to construct a triangle using the given information, classify what type of triangle it would create.
3 cm, 5 cm, 4 cm
90°, 45°, 18 in
A) Right Triangle
B) Isosceles Triangle
C) Equilateral Triangle
D) Obtuse Triangle
Answers
Answer:
righ angle tringle
Step-by-step explanation:
because 90 degree angle is only in right angle tringle,we can not creat this angle in other tringle
Please help me, I will give 29 points!
Answers
Answer:
−0.8x+4.8y+16
Step-by-step explanation:
4(0.5x+2.5y−0.7x−1.3y+4)
=(4)(0.5x+2.5y+−0.7x+−1.3y+4)
=(4)(0.5x)+(4)(2.5y)+(4)(−0.7x)+(4)(−1.3y)+(4)(4)
=2x+10y−2.8x−5.2y+16
=−0.8x+4.8y+16
b) Work out the Highest Common Factor of 600 and 1050
be here to search
TELE
Answers
Answer:
the greatest common factor is 150
A town's population went from 25,000 to 30,000. What was the percent of change? ( Please explain your answer )
Answers
plz answer my question
Answers
Answer:
65
Step-by-step explanation:
15*3+15=60
30*2+15=75
20*4+15=85
10*5+15=65
Translate the following into an algebraic expression: "five less than the product of 7 and
the square root of a number" can be written as:
05 – 71x
0 √5 - 7x
O 7x – V5
07/2o 5
Answers
Answer:
if i am not mistaken i believe it is 0 √5 - 7x
Step-by-step explanation:
If ABC is a right triangle with B the right angle, A=(-3,2) and B =(2,5), find possible
coordinates for C
Answers
Answer:
b
Step-by-step explanation:
The ratio of boys to girls in a club is 4:5 what fraction of the club are boys
Answers
Answer:
4/9 are boys
Step-by-step explanation:
the number 47 is composed of
Answers
Answer:
it's composed of the digits 4 and 7
2. u + 6y = 32
u+ 3y = 17
Answers
Answer:
21
Step-by-step explanation:
25x^2 + 81
factorize completely pls help I'm in a hurry
Answers
Answer:
9/5 or 1.8
Step-by-step explanation:
25x(sqd)+81
x(sqd)=81/25
x=sq rt (81/25) = 9/5 =
jayson subtracted 38 from the product of 325 and 24 what is the difference
Answers
Answer:
263?
Step-by-step explanation:
Answer:
7762
Step-by-step explanation:
product of 325 and 24 is 7800 so 7800-28=7762
PLEASE HELP ASAP! Will Mark BRAINLEST
Answers
1) 7a: 7 times a number
2) 2a+3: 3 more than twice a number
3) 30d, 30 minutes times the number of days she practices.
If you have 100 apples and your friend eats 72 of them how many apples do you have left.
Answers
Explanation: you had 100 but friend eats 72
100-72 = 28.
Answer:
28
Step-by-step explanation:
100 - 72 = 28
What is the mean of 30 and 50?
Answers
Answer:
The mean is 40
Step-by-step explanation:
(30 + 50)/2 = 40
Write
0.33
as a fraction in simplest form.
Answers
Answer:
33/100
Step-by-step explanation:
I need help so please .
Answers
Answer:
78 m
Step-by-step explanation:
We need to use the Pythagorean theorem, [tex]a^{2} + b^{2} = c^{2}[/tex].
Substitute in [tex]a[/tex] and [tex]b[/tex].
[tex]30^{2} + 72^{2} = c^{2}[/tex]
Simplify.
[tex]900 + 5184 = c^{2}[/tex]
Add.
[tex]6084 = c^{2}[/tex]
Square root both sides.
[tex]78 = c[/tex]
The hypotenuse is 78 m long.
find c:
a² plus b² = c
72² plus 30²=c
5I84 plus 900
6084
now square root that
78
so C=78
Post 3 things you Notice or 3 things you Wonder about this image
Answers
I wonder why they teeth look like that and them
Which equation is equivalent to 5x = In 8?
Answers
Answer:
5x= in 8
Step-by-step explanation:
There is no other equation so i hope this is right
