Answer: A) 6x = 54; x = 9 times older
Step-by-step explanation:
9 x 6 = 54
6300kg in grams in standard form
Answer:
6300 kg is equivalent to 6.3·10^5 g
Step-by-step explanation:
Convert 6300 kg TO g in standard form. Recall that 1000 g = 1 kg.
1000 g
Multiplying 6300 kg by ------------- results in 63·10^4, or 6.3·10^5
1 kg
6300 kg is equivalent to 6.3·10^5 g.
Slope table please have a good day
Answer:
y=3.2-5
Step-by-step explanation:
I did this a while ago so just trust me. Have a great day!
I grew up on a pig farm. We raised baby pink pigs from birth to 8 weeks old. A 90% confidence interval is calculated for a sample of weights of 135 randomly selected 8-week old pigs. The resulting confidence interval is 75 to 90 pounds. Will the sample mean weight, from this random sample of 135 pigs, fall within the confidence interval?
a. yes
b. no
c. maybe
Answer:
A
Step-by-step explanation:
3 4 5 6
The sample mean weight, from this random sample of 135 pigs, fall within the confidence interval. (Option A: yes)
How to find the confidence interval for large samples (sample size > 30)?Suppose that we have:
Sample size n > 30Sample mean = [tex]\overline{x}[/tex]Sample standard deviation = [tex]s[/tex]Population standard deviation = [tex]\sigma[/tex]Level of significance = [tex]\alpha[/tex]Then the confidence interval is obtained as
Case 1: Population standard deviation is known[tex]\overline{x} \pm Z_{\alpha /2}\dfrac{\sigma}{\sqrt{n}}[/tex]
Case 2: Population standard deviation is unknown.[tex]\overline{x} \pm Z_{\alpha /2}\dfrac{s}{\sqrt{n}}[/tex]
For this case, we work with sample standard deviation(you can choose even population standard deviation, it won't matter as both are not given here).
We're provided that:
Sample size = n = 135Confidence interval is of 90%, therefore, Level of significance = [tex]\alpha[/tex] = 100 - 90% = 10% = 10/100 = 0.1 (converted percent to decimal)The critical value of Z at 0.1 level of significance is [tex]\pm 1.645[/tex]Confidence interval's limits = 75 (lower limit) and 90(upper limit) (in pounds)Sample mean = [tex]\overline{x}[/tex]Sample standard deviation = [tex]s[/tex]Since the formula for limits of confidence interval is:
[tex]\overline{x} \pm Z_{\alpha /2}\dfrac{s}{\sqrt{n}} = \overline{x} \pm 1.645\dfrac{s}{\sqrt{135}}[/tex]
That has:
[tex]\text{Lower limit} = 75 = \overline{x} - 1.645\dfrac{s}{\sqrt{135}}\\\\\text{Upper limit} = 90 = \overline{x} +1.645\dfrac{s}{\sqrt{135}}\\\\[/tex]
Thus, we get:
Adding both the equations, we get:
[tex]165 = 2\overline{x}\\\\\overline{x} = 82.5 \: \rm pounds[/tex]
That is between 75 and 90 pounds.
Thus, the sample mean weight, from this random sample of 135 pigs, fall within the confidence interval. (Option A: yes)
Learn more about confidence interval for large samples here:
https://brainly.com/question/13770164
expand the function f(x)=(3x+2)
Answer:
81x^4+216x^3+216x^2+96x+16
Step-by-step explanation:
Pls help ive been stuck on this for hours
Answer:
the correct choice is marked
Step-by-step explanation:
The lengths will form a right triangle if the squares of the two shortest legs total the square of the longest. The square of a root is the number under the radical, so you're looking to see if the two smallest numbers under the radicals total the largest number under the radical.
A: 22 +88 = 110 . . . . . a right triangle
B: 66 +99 = 165 ≠ 176 . . . . an obtuse triangle
C: 22 +110 = 132 ≠ 121 . . . . an acute triangle
D: 66 +77 = 143 ≠ 154 . . . . an obtuse triangle
_____
Additional comment
The largest angle is opposite the longest side. If the longest side is too long for the triangle to be a right triangle, then the opposite angle is larger than 90°, and the triangle is obtuse. If the longest side is too short for a right triangle, then the triangle is acute.
solve for x, 3(xt2)=2(2-x)
Answer:
x=-2/5
Step-by-step explanation:
3x+6=4-2x3x+2x=4-65x/5=-2/5x=-2/5Does anyone know what the table is? I need help
Answer:
yea its the thing you eat your food on at breakfast lunch dinner etc.
Step-by-step explanation:
What is 9(2g-h) simplified
Step-by-step explanation:
9(2g - h) = ...
= (9•2g) + (9•(-h))
= 18g - 9h
How does The perimeter of the larger figure relate to the perimeter of the original figure?
Answer:
Perimeters of Similar Figures
of their perimeters is equal to the ratio of their corresponding side lengths.
Step-by-step explanation:
BRAINLIEST?Answer:
here it is
Perimeter is the distance around a two dimensional shape, a measurement of the distance around something; the length of the boundary.
A family eats at a resturaunt. The bill is $75. The family leaves a tip and spends $87 total. What percentage tip did they leave?
Answer:
7.77
Step-by-step explanation:
Solve (x-4)^2=5
answer: (x=5+√4
Answer:
x = 4 + sqrt 5
x = 4 - sqrt 5
Step-by-step explanation:
(X-4)^2 = 5
X - 4 = + - sqrt 5
X = 4 + sqrt 5 and
X = 4 - sqrt 5
Answer:
Step-by-step explanation:
Take the square root of each side of the equation to set up the solution for x
[tex](x-4)^{2*\frac{1}{2} } =[/tex] ±[tex]\sqrt{5}[/tex]
Remove the perfect root factor x - 4 under the radical to solve for x.
x - 4 = ±[tex]\sqrt{5}[/tex]
The complete solution is the result of both the positive and negative portions of the solution.
First, use the positive value of the ± to find the first solution.
[tex]x-4=\sqrt{5}[/tex]
Add 4 to both sides of the equation.
[tex]x=\sqrt{5} +4[/tex]
Next, use the negative value of the ± to find the second solution.
[tex]x-4=-\sqrt{5}[/tex]
Add 4 to both sides of the equation.
[tex]x=-\sqrt{5} +4[/tex]
The complete solution is the result of both the positive and negative portions of the solution.
[tex]x=\sqrt{5} +4,-\sqrt{5} +4[/tex]
29. 2500 people took part in a cross-country race. The number
of adults were 4 times the number of children. If there were
1200 men, how many women were there?
800 women because
2500 divided by 5 = 500 children
then.......2500 minus 500 children minus 1200 men is a balance of 800 women.
If all other factors stay the same, which sample size will create the widest confidence interval?
A) N=100
B) N=200
C) N=300
D) The value of N does not matter here
Answer:
n=300
Step-by-step explanation:
PLS HELP ILL GIVE BRAINLIEST Jessica and Nancy are members of different video game libraries. Jessica pays a membership fee of $50, and she pays $3 for every video game she rents. The following function shows the total amount of money, y, in dollars, that Nancy pays for renting x number of video games:
y = 7x + 25.
How many more dollars does Jessica pay for a membership fee than Nancy?
Answer:
essica pays a membership fee of $40 so that's given to us Jessica has a membership fee of $40 (given)
Nancy has a membership fee of $30 (y intercept of the equation)
so how much is jessica going to pay is $10 more than Nancy
Step-by-step explanation:
Given this equation;
5p + 3 = 15
Write a situation that this equation could help you solve and explain how cach part
of the equation relates to the situation you create.
Answer:
18
Step-by-step explanation:
if anyone could help me with one of these it'd be greatly appreciated
Akio is a board game he starts with 0 points on his first turn Aiko earns 8 points on his second turn he loses three points the expression 8 + (-3) represents the situation use a model to find 8 plus (-3) (if you get this right I will be your best friend :)--)
Answer:
(3+8)+(-3)
Step-by-step explanation:
9514 1404 393
Answer:
8 + (-3) = 5
Step-by-step explanation:
A number line offers a suitable model. +8 is represented by a segment extending from 0 to 8. -3 is represented by a segment extending from 0 to -3. The addition of those numbers is modeled by placing those segments end-to-end. In the attachment, we have shown -3 placed so it starts at the end of +8. The other end of -3 lies at the sum: 5.
8 + (-3) = 5
Marilyn has
78 yard of ribbon. What is the maximum number of 116 yard-long pieces Marilyn can cut from this ribbon?
Answer: She can cut 14 pieces
Step-by-step explanation:
Help please, 20 pts. Which one?
Answer:
you are correct
Step-by-step explanation:
brainliest pls
Help help help help help math please
Answer:
It's dilate
Step-by-step explanation:
Because it changed in size and if it would to be translation the same size would be the same just different amount of spaces between the shapes.
HELP PLZ IM GIVING BRAINLIEST
Answer:
6 large Boxes 2 Small boxes
Step-by-step explanation:
400 - 800 - 1200 - 1600 - 2000 - 2400
1 2 3 4 5 6
50 - 100
1 2
2 is 1/3 of 6
2400 + 100 + 2500
Which graph represents Y as a function of X?
Answer:
Which graph represents Y as a function of X?
Step-by-step explanation:
Compare the graphs of y = x and y = 2x. How are they related? a. The graph of y = 2x represents a transformation of the parent function, y = x, which makes the ...
Help hurry hurry fast converting
Answer:
ok so a is 1b b is 5 c is 57 d is 97
Use the definition of the derivative to differentiate v=4/2 pie r^3
I suspect 4/2 should actually be 4/3, since 4/2 = 2, while 4/3 would make V the volume of a sphere with radius r. But I'll stick with what's given:
[tex]\displaystyle \frac{dV}{dr} = \lim_{h\to0} \frac{2\pi(r+h)^3-2\pi r^3}{h}[/tex]
[tex]\displaystyle \frac{dV}{dr} = 2\pi \lim_{h\to0} \frac{(r^3+3r^2h+3rh^2+h^3)- r^3}{h}[/tex]
[tex]\displaystyle \frac{dV}{dr} = 2\pi \lim_{h\to0} \frac{3r^2h+3rh^2+h^3}{h}[/tex]
[tex]\displaystyle \frac{dV}{dr} = 2\pi \lim_{h\to0} (3r^2+3rh+h^2)[/tex]
[tex]\displaystyle \frac{dV}{dr} = 2\pi \cdot 3r^2 = \boxed{6\pi r^2}[/tex]
In Mathematica, you can check this result via
D[4/2*Pi*r^3, r]
Help me with this question
Answer:
The answer is y=-x+9.
The first thing to do is find where the line intercepts the y-axis, which is at positive 9 so you'll add a +9 to the end of your equation. Next you find the slope and since it's going down left to right, you know it is a negative. Now slope is found by change in y divided by change in x. And since both change and y and change in x are both 1, 1/1 is 1. And since you know it's negative that means the slope is -x. Altogether you get y= -x+9
help me please in zearn
Answer:
woah amazing
Step-by-step explanation:
which statement best reflects the solution(s) of the equation?
Answer:
A
Step-by-step explanation:
Need help it's a pic
Step-by-step explanation:
Hope this will helps you
Jack is paid £2400 a month.
He spends half his money on rent,
He spends the rest on food, bills and savings in the ratio 3:5:4
How much does he spend on bills?
(I really need help with this) - TYSM if anyone is able to help) :)
Answer:
300+400+500=1200
Step-by-step explanation:
given total paid $2400
spend $1200 on a rent (half of his paid)
so rest he spend as a ratio of 3:4:5=1200
let x as a amount he using to pays rest of the bills so
3x+4x+5x=1200
12x=1200
x=1200/12
x=100
so he spends 3x=300
4x=400
5x=500
hope it helps you
mark as brain list
126/999 simplified
Answer:
14/11
Step-by-step explanation: