Answers
Answer:
line 2 of her working
Step-by-step explanation:
when multiplying the brackets out it is a negative times posative so she should have wrote -4 not +4
Related Questions
40 divided by a number m
Answers
Answer:
40/m
Step-by-step explanation:
I dont really know what I'm answering but there's that
In science class savanna measures the temperature of a liquid to be 24 Celsius her teacher wants her to convert the temperature to degrees Fahrenheit what is the temperature of savannas liquid to the nearest degree in Fahrenheit
Answers
Answer:
Mmm
Step-by-step explanation:
Compute 95% confidence intervals for the proportion of defective items in a process when it is found that a sample of size 100 yields 8 defectives.
Answers
Answer:
0.02683<x<0.133173
Step-by-step explanation:
The confidence interval formula is expressed as;
CI = p ± z√p(1-p)/n
p is the proportion
z is the confidence interval at 95% confidence
n is the sample size
Since it is found that a sample of size 100 yields 8 defectives, the sample proportion p = 8/100 = 0.08
Given
n = 100
z score = 1.96
p = 0.08
1-p = 1-0.08 = 0.92
Required
95% confidence interval
Substitute the given parameters into the formula as shown;
CI = p ± z√p(1-p)/n
CI = 0.08 ± 1.96√0.08(0.92)/100
CI = 0.08 ± 1.96√0.0736/100
CI = 0.08 ± 1.96(0.027129)
CI = 0.08 ± 0.053173
CI = (0.08-0.053173, 0.08+0.053173)
CI = (0.02683, 0.133173)
Hence the 95% confidence intervals for the proportion of defective items is 0.02683<x<0.133173
help pls is my homework helpp
please
Answers
if each genre has a 25% chance of playing, about how many times should we expect each genre playing out of 20
Answers
The set up:
(0.25)(20) =
So, multiply.
Answer:
5 timesStep-by-step explanation:
Each one has a 25% chance, which is 0.25 times
Number of attempts is 20
Expected number is:
0.25*20 = 5 timesPLEASE ANSWER GIVING BRAINLIEST
Answers
Answer:
the last one
(x+1)^2+(y+4)^2=16
There are 20 pieces of bread to divide among 20 people. A man eats 3 pieces, woman eats 2 pieces and a child eats half piece of bread. Tell the correct combination of men, women and children so that they are 20 people in total and everyone gets the bread. Note that a man cannot eat less than 3 or more than 3. A woman cannot eat less than 2 or more than 2 and the child cannot eat less than half or more than half piece of the bread. You have to tell there are how may are men, women and children in those 20 people.
Answers
Answer:
14 children, 5 women, 1 man
Step-by-step explanation:
14 children which gives us 7 loves. 1 man which gives us 3 loves. 5 women which gives us 10 loves.
People: 14 + 1 + 5 = 20
Loves: 7 + 3 + 10 = 20
The number of men, women, and children among the 20 people would be as follows:
A). There are 5 women, 1 man, and 14 children.
Given that,
No. of bread pieces = 20
No. of people to be divided among = 20
We also know that,
1 man consumes = 3 pieces
1 woman consumes = 2 pieces
1 child consumes = 1/2 piece
Using the trial and error method, we can see that;
20 = (1 man × 3 pieces) + (5 women × 2 pieces each) + (14 × 1/2 piece each)
⇒ 20 = 3 + 10 + 7
∵ 20 = 20
Thus, option A is the correct answer.
Learn more about "Algebra" here:
brainly.com/question/14413003
The load that can be supported by a rectangular beam varies jointly as the width of the beam and the square of itsâ height, and inversely as the length of the beam. A beam feetâ long, with a width of inches and a height of inches can support a maximum load of pounds. If a similar board has a width of inches and a height of âinches, how long must it be to support âpounds?
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The question is incomplete.Here is the complete question.
The load that can be supported by a rectangular beam varies jointly as the width of the beam and the square of its length, and inversely as the length of the beam. A beam 13 feet long, with a width of 6 inches and a height of 4 inches can support a maximum load of 800 pounds. If a similar board has a width of 8 inches and a height of 7 inches, how long must it be to support 1300 pounds?
Answer: It must be 392 inches or approximately 33 feet.
Step-by-step explanation: According to the question, the measures (width, length and height) of a beam and the weight it supports are in a relation of proportionality, i.e., if divided, the result is a constant.
For the first load:
width = 6in
height = 4in
length = 13ft or 156in
weight = 800lbs
Then, constant will be:
[tex]\frac{6.4^{2}}{156} k = 800[/tex]
[tex]k=\frac{800.156}{96}[/tex]
k = 1300
For the similar beam:
[tex]\frac{8.7^{2}}{L}1300=1300[/tex]
L = 49.8
L = 392in or 32.8ft
A similar board will support 1300lbs if it has 392 inches or 32.8 feet long.
The answer to this question here 0.1x=0.2(x+2)
x=-4
Answers
Answer:
the answer is 76
Step-by-step explanation:
Timed please help :))
Answers
It's the first one :))
A motivationql speaker writes at a cinstant rate of 1/2 speech every 3/4 hour. At this rate, what frqction represents the number of speeches the speaker writes per hour?
Answers
Answer:
They can write 3\4 of a speech in 1 hour
Step-by-step explanation:
Half of a half is 2/3 Split that in half and get 3\4
For which equations is 8 a solution? Select the four correct answer
Answers
Answer:
I believe the answers are= 2, 3, 6, 8
Step-by-step explanation:
For #2, you would subtract 2 from both sides. 10-2=8. x=8.
For #3, you would add 4 to both sides of the equation, making the final answer: x=8
For #6, you would divide both sides by 3. 24 divided by three is 8.
For #8, I multiplied the whole equation by 8, which is the denominator of x/8. 1 times 8=8. The final answer would be x=8.
Hope this helps!
The equations whose solution is 8 will be x + 2 = 10, x - 4 = 4, 3x = 24, and x/8 = 1. Then the correct options are B, C, F, and H.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
Let's check all the options. Then we have
A. x + 6 = 2, simplify the equation, then we have
x + 6 = 2
x = - 4
B. x + 2 = 10, simplify the equation, then we have
x + 2 = 10
x = 8
C. x - 4 = 4, simplify the equation, then we have
x - 4 = 4
x = 8
D. x - 2 = 10, simplify the equation, then we have
x - 2 = 10
x = 12
E. 2x = 4, simplify the equation, then we have
2x = 4
x = 2
F. 3x = 24, simplify the equation, then we have
3x = 24
x = 8
G. x/2 = 16, simplify the equation, then we have
x / 2 = 16
x = 32
H. x/8 = 1, simplify the equation, then we have
x/8 = 1
x = 8
The equations whose solution is 8 will be x + 2 = 10, x - 4 = 4, 3x = 24, and x/8 = 1. Then the correct options are B, C, F, and H.
More about the solution of the equation link is given below.
https://brainly.com/question/545403
#SPJ6
10x+3-4x is equivalent to 6x+3
Answers
Answer:
True
X is equal to all real numbers
Step-by-step explanation:
10x -4x = 6x
6x + 3 = 6x + 3
If you combine like terms you subtract-4x from -6x which your get you 6x+3.
What fractions are equivalent to 2 1/2
Answers
Answer:
4/2
Step-by-step explanation:
In order to find the answer you must multiple your whole number by the denominator and add that to the numerator.
What equation has a graph that is parallel to the graph of 2X - Y = -1
Answers
Answer:
y= 2x
Step-by-step explanation:
Find the slope of the original line and use the point slope fromula y-y1=m(x-x1) to find the line parallel to 2x-y=-1
Original
y=mx+b
y=2x +1
z = 19i + 14 what is the imaginary part
Answers
Answer:
The imaginary part is: z = 19
Step-by-step explanation:
For real numbers a and b, a number written in form a+bi is called a acomplex number. The value a is called the real part and b is called the imaginary part of complex number.
X+ 4.25 = 9.82 pls help
Answers
Answer:
x will equal 5.57!
Step-by-step explanation:
Find the area of this quadrilateral. Explain or show your strategy.
Answers
Answer:
24 units
Step-by-step explanation:
1) Separate this quadrilateral into 2 triangles
2) Multiply the height by the width of one of the triangle
- Multiply 8×3
= 24
What’s the missing angle.
Brainliest if your correct
Answers
We are given:
We know that the sum of all interior angles of a Pentagon is 540°
we are given 4 out of the 5 angles
Solving for x:
since the sum of all 5 angles is 540°:
75 + 130 + 135 + x + 90 = 540
x + 430 = 540
x = 540 - 430
x = 110°
Describe the error in determining whether the table represents a linear function.
Answers
Answers:
Describing the Error:
Choice B) The function is nonlinear and the increase in y is not constant.
Correcting the Error:
As x increases by a constant amount, y needs to increase or decrease by the same amount for the function to be linear.
=========================================================
Explanation:
Each time x goes up by 2, y is being multiplied by 4.
It may appear y is increasing at a constant rate, but this is not true. The jump from y = 4 to y = 16 is +12; while the jump from y = 16 to y = 64 is +48. The increase in y is not the same each time. This is just a rephrasing of what is discussed in the "correcting the error" section above.
So this is why the function is nonlinear. It turns out that this function is an exponential. Specifically, this is the function y = 2^x. For instance, if x = 8, then y = 2^x = 2^8 = 256. Graphing this function produces a curve that isn't a straight line, which is visual confirmation the function is nonlinear.
Use the system of equations and graphs below to complete the sentence.
X - 2y = 5
3x + 15y = -6
The graph that correctly represents the given system of equations is graph (A, B, C, D), and the solution to the system is ((-4, -3, 3, 4), (-2, -1, 1, 2)).
Answers
Answer:
Graph B
The Blanks: (3, -1)
Step-by-step explanation:
I got it right on edmentum
Answer:
B, 3,1
Step-by-step explanation:
A volleyball team played 28 matches and won 21 of them. What percent of their matches did they win ?
Answers
21/28= 0.75
I need your help its emergency
Answers
Answer:
Bruh
Step-by-step explanation:
Lowest to highest.
Answer:
-43.6°, -37.4°F, -17°F, 37.3°F, 51.8°F, 52°F
simplify the expression. 2.7(w-5.2)
Answers
Answer:
2.7w - 14.04
Step-by-step explanation:
Distribute the 2.7
If Gage gets 40 bucks a month how much months would it take him to get 300 bucks.
Answers
Answer:
7 to 8 months / most probably 8 months
7.5 months to be exact
Step-by-step explanation:
Hi there!! Let's work!
So lets Break it down,
Given: $40 every month
Prove: How many months till he has in total $300
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We need to multiply the number of months to 40 to get 300~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
So lets refer to a multiplication chart to make it easier:||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Here is an example of the equation we will use:400 x (months) = $300 / (or how much ever we get)
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As you can see:We have 2 final equations because we don't have a straight forward answer. (Refer to explanation below)
40 x 7 = 280
and
40 x 8 = 320
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So in problems like these we have to think like we would in real life, if you have an option you can write 7 to 8 months or you should write 8 instead of seven since they may be asking for a specific amount of months and after 8 months Gage will reach (surpass) his goal of $300 by $20.
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Make sure to also press the like button (Thanks button) if you really liked my answer / explanation
If it was incorrect or you didn't learn from it please review my answer accordingly (report if incorrect)
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Lastly, If your the owner of this question please mark me Brainliest if you really learned from my answer I really do appreciate it.THANK YOU :)Mrs adam walk between 4\10 and 6\10 mile every day. which is the best estimate of the number of miles she walks in 30 day
Answers
5/10 is between 4/10 and 6/10, so you could say they average 5/10 miles per day.
5/10 = 1/2
1/2 mile per day x 30 days = 15 miles
The best estimate is she walks 15 miles in 30 days.
Running out of time :)
find the number:
the tens digit of a two digit number is twice the ones digit. If the digits are reversed the new number is 36 less than the original number. Find the number.
Answers
Answer:
It's 84
Step-by-step explanation:
answer the multiple choice question
Answers
Answer:
200
Step-by-step explanation:
There are 6 numbers on a standard number cube. If the rolling is random, there should be a 1/6 chance of rolling a certain number. Basically, someone would theoretically roll each number 100 times out of 600. Because there are two numbers on the dice greater than 4, multiply 100 by 2 to find the answer.
15 POINTS!
Sarah had $100 dollars in her bank account, and she spent $88 dollars on concert tickets. How much money is left in her account?
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wow way to manage momey here sarah
the perimeter of a rectangle is 84 feet. If the length of the rectangle is 24 feet, what is its width?
Answers
Answer:
The width is 18 feet.
Step-by-step explanation:
You know that a rectangle has 4 sides.
L + L + W +W =84
24 +24 +2W =84
48 +2W =84
2W =84 - 48
W =18