Answers
Hope it helps
Related Questions
is 0.9727 a positive correlation, negative correlation, or no correlation?
Answers
Find the zeros of the equation:
(x+10)(x-2) = 0
Answers
Answer:
[tex]x=-10;x=2[/tex]
Step-by-step explanation:
[tex](x+10)(x-2)=0\\(-10+10)(-10-2)=0\\0(-12)=0\\0=0[/tex]
[tex](x+10)(x-2)=0\\(2+10)(2-2)=0\\0(12)=0\\0=0[/tex]
Suppose that the lifetimes of a certain kind of light bulb are normally distributed with a standard deviation if 110 hours. If exactly 95% of the bulbs die before 920 hours, find the mean lifetime if the bulbs
Answers
Answer:
The mean life time of the bulbs is approximately 739 hours
Step-by-step explanation:
Here, we want to calculate the mean life time
From the question, 95% of the bulbs die before 920 hours
What this mean is that the probability that a bulb will die before 920 hours is 95% = 95/100 = 0.95
Now, we need the z-score that is exactly equal to this value
Using the standard normal distribution table, the z-score corresponding to this probability value is 1.645
Mathematically;
z-score = (x-mean)/SD
In this case, x is 920, SD is standard deviation which is 920 hours
thus, we have it that;
1.645 = (920-mean)/110
110(1.645) = 920 - mean
180.95 = 920 - mean
mean = 920- 180.95
mean = 739.05
MY LAST POINTS!!!!!! first to answer correctly gets brainliest.
Answers
Answer:
1) vertical
2) adjacent
Step-by-step explanation:
so, vertical is when two different numbers are congruent and adjacent is numbers next to each other but are no congruent
Which fractions are equivalent to -15/4? Select all that apply. A: -15/4 B:-15/-4 C:15/-4 D:15/4 E:- 4/15 F:4/-15
Answers
Answer:
-15/4
C:15/-4
Step-by-step explanation:
a negative number divided by another negative number gives a positive number : -15 / - 4 = +3.75
-15/4 and 15/-4 = -3.75
15/4 = 3.75 (two positive numbers divided with each other yields a positive number)
-4/15 and 4 / -15 = 0.27
There are 30 students in a class. Which equations represent the situation if the number of boys
is b and the number of girls is 7? Select all that apply.
A. b x 30 = 7
B.b = 30- 7
C. b = 30 + 7
D. b +7 =30
E. b x 7 =30
Answers
Step-by-step explanation:
A. b x 30 = 7E. b x 7 =30C. b = 30 + 7
E.J. calls people at random to conduct a survey. So far, 40 calls have been
answered and 120 calls have not been answered. What is the approximate
probability that someone answers the next call he makes?
O A. 75%
ОВ. 0.4
C.
D. 0.25
PLEASE HELP I DONT HAVE MUCH TIME
Answers
Answer:
0.25
Step-by-step explanation:
Answer:
The Correct Answer Is D. 0.25 I Did The Exam
Step-by-step explanation:
Find the measure of the arc or angle
Answers
Answer:
2
Step-by-step explanation:
Hello, I Am BrotherEye
Below Are Imformation That Will Nourish You
Answer:
Arc Measure Given In Degrees
Find the circumference of the circle and then multiply by the measure of the arc divided by 360°. Remember that the measure of the arc is equal to the measure of the central angle. where r is the radius of the circle and m is the measure of the arc (or central angle) in degrees.
Step-by-step explanation:
The best way to measure an angle is to use a protractor. To do this, you'll start by lining up one ray along the 0-degree line on the protractor. Then, line up the vertex with the midpoint of the protractor. Follow the second ray to determine the angle's measurement to the nearest degree.
can someone help me out with this
Answers
Answer:
x + 5, angle G is 16 degrees and angle F is
Step-by-step explanation:
3x + 11 = 5x - 9
3x + 10 = 5x
10 = 2x
x = 5
5(5) - 9 = 16
3(5) + 11 = 26
What is the value of x?
to
x = [?]°
Answers
The horizontal in a pair of coordinates how far along tje point is ,so i cant tell u the awnser exactly but i can give explanation
Factorize completely
2x^2+4x-6
Answers
Answer:
Solution given;
2x²+4x-6
2x²+6x-2x-6
2x(x+3)-2(x+3)
(x+3)(2x-2)
is your answer
Answer:
2(x + 3)(x - 1)
Step-by-step explanation:
Given
2x² + 4x - 6 ← factor out 2 from each term
= 2(x² + 2x - 3) ← factor the quadratic
Consider the factors of the constant term (- 3) which sum to give the coefficient of the x- term (+ 2)
The factors are + 3 and - 1 , since
3 × - 1 = - 3 and 3 - 1 = + 2 , then
x² + 2x - 3 = (x + 3)(x - 1) , so
2x² + 4x - 6 = 2(x + 3)(x - 1) ← in factored form
I NEED HELP! Im trying to find the height of a cone. How do I do the problem and can someone explain it step-to-step?
Answers
Answer:
first the primerter then the area
Step-by-step explanation:
Answer:
The height of the cone is simple... here are the steps
Step-by-step explanation:
V= 1/3πr²h
V would be 1,398
π would be 3.14
r² 9.2x9.2
so the new equation is 1,398=1/3(3.14)(84.64)h
Now to get h all by itself multiply all in the equation... after divide by 1/3
1,398= whatever number xh
Now divide that whatever number by 1,398 and you find the height.
Hope this helps.
During the first two weeks at his new job Damian earned a total of $500 he earned x dollars during the first week during the second week he earned 4 times as much as he did the first week. How much did Damian earn during the first week
Answers
Answer:
$100
Step-by-step explanation:
x + 4x = 500
5x = 500
x = 100
Brian built 3 wooden toys. Each toy had a mass of 5/7 kilograms. What was the total mass of the toys that he built
Answers
Answer:
2 1/7 kg
Step-by-step explanation:
Multiply 5/7 kg by 3, obtaining 15/7 kg, or 2 1/7 kg
Hi is this correct please respond soon I love you so much thank you
Answers
ANSWER QUICK PLS
ANSWER QUICK PLS
The angle of elevation from the bottom of a slide to the top of the slide is
44°. If the top of the slide sits 16 feet above the ground, find the length of
the slide. Assume it is a straight slide.
Answers
Brainly bot here, telling you that your account has been temporarily banned, and the only people that can answer your questions are the other banned accounts. dm the managers to find out more information.
a cat is stuck on the root. if the ladder is 16 feet long and must be placed six feet away from the building. how high can the ladder reach up the building to help save the cat
Answers
Step-by-step explanation:
a^2 + b^2 = c^2
height + 6^2 = 16^2
height = 14.83
I need help with this problem due tonight 10 points!!!
Answers
Answer:
The value of the slope of the line is 1
Step-by-step explanation:
Here, we want to find the value of the slope of the line that passes through the given points
Mathematically, we have the equation as;
m = (y2-y1)/(x2-x1)
(x1,y1) = (4,-11)
(x2,y2) = (7,-8)
substituting these values in the slope equation, we have;
m = (-8-(-11))/(7-4) = 3/3 = 1
please answer correctly, will give brainlie'st, explain gow to got the answer.
Evaluate:
10 + (a ³ - b ) for a = 3 and b = 8
8
11
18
29
Answers
Answer:
29
Step-by-step explanation:
Using PEMDAS, you will first evaluate the parenthesis, then exponents, (skip multiplication and division since it isn't in this problem), then addition/subtraction (order doesn't matter). So, plug in a and b where they correspond -> (3^3 - 8) which simplifies to (27 - 8) = 19. Finally add 10 + 19 = 29
hope this helps!
Answer:
29
Step-by-step explanation:
10 + (a^3 - b)
plug in your variables
10 + ((3)^3 - (8))
solve inside the parenthasis
10 + (3^3 = 27 - 8 = 19)
now we have:
10 + (19)= 29
Choose equal less or greater
Answers
Answer:
C is greater
D is less
Step-by-step explanation:
Which of the following is a polynomial?
O A. x^2 - 1
O B. x^-y+ 2
O c. (x^6 - 2)/(x^4 + 3)
O D. x^4+ x^4 + 16
Answers
Answer:
I think it's A...
Step-by-step explanation:
It's been a little while since I've done polynomials, binomials, monomials, etc., so I think I'm right, but sorry if I'm wrong...
Solve for i
3 (.5i - 6 ) = 12
Answers
Answer:
15i-18=12
15i=12+18
15i=30
i=30/15
i=2
determine the value of x (ill give brainliest)
Answers
Answer:
I believe the answer is 7
Answer:
12
Step-by-step explanation:
9 * 12 - 2 = 61
7 * 12 + 12 = 61
If f(x)=2x^2+x-3, which equation can be used to determine the zeros of the function?
A) 0=(2x-3)(x+1)
B) 0=(2x+3)(x-1)
C) 0=2x(x+1)-3
D) 0=2x(x-1)-3(x+1)
Answers
Answer:
B) 0=(2x+3)(x-1)
Step-by-step explanation:
factor the equation f(x) = 2x² + x - 3
=> f(x) = (2x + 3)(x - 1)
Option B is correct.
What is zeros of a function?A zero of a function is a member of x of the domain of f such that f(x) vanishes at x, that is the function f attains the value of 0 at x.
According to the given question
we have a function
[tex]f(x)=2x^{2} +x-3[/tex]
[tex]f(x)=2x^{2} + 3x-2x-3[/tex]
[tex]f(x)=2x^{2} -2x+3x-3[/tex]
[tex]f(x)=2x(x-1)+3(x-1)[/tex]
[tex]f(x)=(2x+3)(x-1)[/tex]
for finding the zeros of f(x), substitute f(x)=0
[tex](2x+3)(x-1)=0\\[/tex]
⇒ x=[tex]\frac{-3}{2}[/tex] and x=1
Hence, option B is used for finding the zeros of the given function f(x).
Learn more about the zeros of function here:
https://brainly.com/question/944636
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HELP PLS
nobody two dancers liquid smooth deftones korn mitski
Answers
perimeter: 59
area: 247
Answer:
agreed
Step-by-step explanation:
what is the simplified fractional equivalent of the terminating decimal 0.78?
Answers
Answer: 39/50
Step-by-step explanation: the answer is 39/50
Answer:
the answer is 39/50
Step-by-step explanation:
thank you
Solve the system in the image below
Answers
The quantities
x
and
y
are proportional.
Answers
Answer:
The quantities x and y are in a proportional relationship.
Step-by-step explanation:
[tex][Hello,BrainlyUser][/tex]
Your question is incomplete but I will try my best to answer <3
Answer/Step-by-step explanation:
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x = r
[tex][CloudBreeze][/tex]
A farm sells peaches in boxes . Using the table , how many peaches will be in 12 boxes ? Please help
Answers
Explanation:
Number of boxes times 12 will give u number of peaches.
Hope this helps and can u plz mark brainliest,if u can?
0.75(4x + 2) = 5 - (x + 1.5)
X =
Answers
Answer:
The answer is x=1/2 or x=0.5
Answer:
x = 0.5
Step-by-step explanation:
0.75(4x + 2) = 5 - (x + 1.5)
3x + 1.5 = 5 - x - 1.5
3x + 1.5 = -x + 3.5
3x + x = 3.5 - 1.5
4x = 2
x = 0.5