Answer:
i think 70 words per minute
Step-by-step explanation:
Please help I’ll mark brainliest if u give a small explanation
It costs $0.50 to download an individual song and $4 to download an album. Jada has $15 to spend downloading music.
Answer:
what is it asking
Step-by-step explanation:
what is the image of (6,-6) after a dilation by a scale factor of 4 centered at the origin
9514 1404 393
Answer:
(24, -24)
Step-by-step explanation:
Dilation centered at the origin multiplies each coordinate by the dilation factor.
image = 4 × (6, -6)
image = (24, -24)
A battery is charged. The percentage of the battery's capacity that is charged as a function of time (in minutes) is graphed. graph At what rate is the battery charged? Choose 1 answer: Choose 1 answer: (Choice A) A 20 percent per minute (Choice B) B 1 percent per minute (Choice C) 2 percent per minute (Choice D) 10 percent per minute
The answer is -12 percent
Answer:
12%
Step-by-step explanation:
Just do 12% it is correct the other one is wrong
1/3 exponent 4??? pls help immediately
Stainless steels can be susceptible to stress corrosion cracking under certain conditions. A materials engineer is interested in determining the proportion of steel alloy failures that are due to stress corrosion cracking. In the absence of preliminary data, what is the minimum sample size required to ensure a 90% confidence interval for p to within 0.02
Using the z-distribution, as we are working with a proportion, the minimum sample size required to ensure a 90% confidence interval for p to within 0.02 is of 1692.
What is a confidence interval of proportions?A confidence interval of proportions is given by:
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which:
[tex]\pi[/tex] is the sample proportion.z is the critical value.n is the sample size.The margin of error is of:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In this problem:
No prior estimate, hence the proportion is [tex]\pi = 0.5[/tex].Margin of error of M = 0.02.90% confidence level, hence[tex]\alpha = 0.9[/tex], z is the value of Z that has a p-value of [tex]\frac{1+0.9}{2} = 0.95[/tex], so [tex]z = 1.645[/tex].Then, solving for n:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]0.02 = 1.645\sqrt{\frac{0.5(0.5)}{n}}[/tex]
[tex]0.02\sqrt{n} = 1.645(0.5)[/tex]
[tex]\sqrt{n} = \frac{1.645(0.5)}{0.02}[/tex]
[tex](\sqrt{n})^2 = \left(\frac{1.645(0.5)}{0.02}\right)^2[/tex]
[tex]n = 1691.3[/tex]
Rounding up, a sample size of 1692 is needed.
More can be learned about the z-distribution at https://brainly.com/question/25890103
Let’s fix some n e {1,2,3,...}. A biased coin with probability of head p is tossed n times, and the number of heads, N1, is counted. The coin is then tossed Ni more times, and the number of heads, N2, is counted. Find the expected total number of heads, E[Ni + N2], generated by this process. The answer should depend on n and p only.
Answer:
The answer is "np(1+p)".
Step-by-step explanation:
[tex]N_1[/tex] = Number of n tossed heads
According to [tex]N_1[/tex], Y = amount of [tex]N_1[/tex] tossing heads
So, [tex]N_1[/tex]~ Bin(n, p) and [tex]N_2[/tex] | [tex]N_1[/tex] ~ Bin([tex]N_1[/tex], p)
[tex]E(N_1+N_2) & = E\Big[N_1+N_2\vert N_1\Big]\\ &[/tex]
[tex]= E(N_1)+E\Big[N_2\vert N_1\Big]\\\\ & = E(N_1) + E(N_1\,p)\\\\ & = np + np.p \\\\ =np+np^2\\\\ =np(1+p)[/tex]
PLEASE HELLPP MEEEEEEEEeeeeeeeeeeeeeeeeee
Answer:
D, 32
Step-by-step explanation:
First input all the numbers. Then do what’s inside the parenthesis first then multily by 12. lastly divide that number by 2.4
Answer:
32
Step-by-step explanation:
[tex]\frac{12(4+2.4)}{2.4}\\\frac{12(6.4)}{2.4} \\ \frac{76.8}{2.4}=32[/tex]
I’m not very good at math, anyone can answe this plz and thanks
Answer:
B
Step-by-step explanation:
Answer:
If it is asking for the total of both then it should be 6 1/4
Step-by-step explanation:
I added 4 3/4 and 1 1/2
Factor out the coefficient of the variable 2/3j - 2/9
answer: hey lol*sharts loudly*
Step-by-step explanation:
you just need to use the bathroom next time;))))
Which signs do you have to fill ( + , - , × , ÷ , √ , = ) in between the numbers to make this a true equation.
74205, 3 , 169 , 490 , 1701 , (1/8) , 15262 , 2²
Answer:
put them in order
Step-by-step explanation:
1/2+2-3=309y6
10. If a rectangular prism has a volume of 60 cubic inches and all dimensions are doubled, what is the new
volume?
d. 30 in
c.
b. 120 in
60 in
480 in
a.
Answer:
New volume on this is 480 cubic inches
Step-by-step explanation:
The volume of a rectangular prism is area of base * height
That would be;
l * b * h = lbh
we have all this as 60
Doubling all, we have
2l * 2b * 2h = 8lbh
Recall lbh = 60
So 8lbh = 8 * 60 = 480 cubic inches
How much fencing is needed to enclose a field that is 300 meters by 600 meters?
1800 meters of fencing is required to enclose a field.
Given that, the dimension of the field is 300 meters by 600 meters.
What is the perimeter of a rectangle?The perimeter of a rectangle is the total distance of its outer boundary. It is twice the sum of its length and width and it is calculated with the help of the formula: Perimeter = 2(length + width).
Now, the perimeter of the rectangular field=2(600+300)
=2×900=1800 meters.
Therefore, 1800 meters of fencing is required to enclose a field.
To learn more about the perimeter of a rectangle visit:
https://brainly.com/question/2142493.
#SPJ2
Simplify the expression. 55−4x5+12
Answer:
First we add four point five plus twelve and we get sixteen point five, and so now we subtract fifty-five minus sixteen point five and we get our answer.
Answer: 62.5
Step-by-step explanation:
Hope this helps!
:)
Give the slope between the points
(-2,0) (-11,-4)
Answer:
Step-by-step explanation:
12,12
Answer:
The slope is 4/9
Round your answer to tenth place. A park has a triangular sandbox. Todd wants to create a smaller sandbox at his backyard having the same angles as the park sandbox. Drawings of both sandboxes are shown. 14 ft 18 ft 20 ft Park Sandbox 8 ft Todd's Sandbox What is the perimeter, in feet (ft), of Todd's sandbox? DOLL
No picture given for this problem. Repost.
I need help I’m graphing this please help out
Answer:
Step-by-step explanation:
Answer:
y-intercept(0, -9)
Step-by-step explanation:
TRUE or FALSE. Coordinates and position are written the same way but show different information?
Answer:
True.
Step-by-step explanation:
danny bought a shirt that was first put on sale for 30% off that went on clearance for an additional 40% off. what is the markdown if the original price was $94.99
Answer:
The total is $28.50
Step-by-step explanation:
Which of the following is equal to 5 1/3?
segment AB is dilated from the origin to create segment A prime B prime at A' (0, 6) and B' (6, 9). What scale factor was segment AB dilated by?
As you forgot to mention the diagram. I was able to find the diagram. Hence, I am attaching and solving the question based on that diagram, which anyways would clear your concept.
Answer:
we conclude that the segment AB was dilated by scale factor 3.
Step-by-step explanation:
From the diagram, it is clear that the original points A and B are located
at (0, 2) and (2, 3) respectively.
i.e.
A(0, 2)B(2, 3)As the coordinates of the dilated segment A'B' are given as:
A'(0, 6)B'(6, 9)A scale factor is basically a number that multiplies an object or quantity.
For instance, the 'D' in [tex]y = Dx[/tex] is the scale factor for x.
If the equation were y = 7x, then the factor would have been 5.
As the coordinates of the dilated segment A'(0, 6) and B'(6, 9) are 3 times the coordinates of the original segment A(0, 2) and B(2, 3).
i.e.
A(0, 2) → (0×3, 2×3) = A'(0, 6)
B(2, 3) → (2×3, 3×3) = B'(6, 9)
Therefore, we conclude that the segment AB was dilated by scale factor 3.
Answer:
Segment AB was dilated by scale factor 3.
Step-by-step explanation:
The person above is correct tahnk you!!!
(0,3), (4,15), (5,33), determine the equation of the parabola they represent. State the direction the parabola opens.
Answer:
y = 3x² – 9b + 3 and the parabola opens upwards since a = 3 > 0.
Step-by-step explanation:
The general equation of a parabola is:
y = ax² + bx + c
So we have to solve for a, b and c to get our equation with the 3 given points.
When x = 0 and y = 3 we have
3 = a(0)² + b(0) + c, this means c = 3
When x = 4 and y = 15
15 = a(4)² + b(4) + 3 we have
16a + 4b = 12 which is
4a + b = 3
When x = 5 and y = 33 we have
33 = a(5)² + b(5) + 3 we have
25a + 5b = 30 which gives
5a + b = 6.
We have two equations
4a + b = 3
5a + b = 6
Eliminating b we have
a = 3, substituting a = 3 in the first equation we have
4(3) + b = 3
12 + b = 3
b = –9
Our equation therefore is:
y = 3x² – 9b + 3 and the parabola opens upwards since a = 3 > 0.
HEEEEEEEEEEELLLLLLLPPPPP PLEASE );
Kingston deposited $90 in a savings account earning 6% interest, compounded annually. To the nearest cent, how much will he have in 2 years?
Answer: 101.12
Step-by-step explanation: This answer is rounded to the nearest cent. The other is not, and will count it wrong.
1. In the Mauritius warehouse, 145 kg of corn and 105 kg of beans are stored. Answer back:
A) What percentage of the total production does corn represent?
B) What percentage of the total production does beans represent?
Answer:A) 58% and B) 42%
Step-by-step explanation:
Plz brainliest: I’m almost an expert plz
Help me Please 20 POINTS
When two variables are in a proportional relationship, which of the following is true about
1 their values.
2 their sums are a constant
3 their differences are a constant
4 their products are a constant
5 their quotients are a constant
Answer:
(5)
for eg;
3/5 is proportional to 15/25
Answer:
I would say 1 or 4
Step-by-step explanation:
Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is know as the "constant of proportionality".
What is : [tex]7a + 8b + 9a + 4b + b =[/tex]
Answer: 16a + 13b
Step-by-step explanation: combine like terms:
7a + 9a
8b +4b +b
= 16a + 13b
Answer:
16a + 13b
Step-by-step explanation:
7a + 9a = 16a
Remember: a number without coefficent is 1
8b + 4b + b = 13b
Based on the position vs. time graph, which velocity vs. time graph would correspond to the data? A graph with horizontal axis time (seconds) and vertical axis position (meters). A line runs straight upward from 0 seconds 0 minutes.
Answer:
C or the graph with continuous acceleration (straight line)
Step-by-step explanation:
It's the right answer on edguinity
Answer:
c
Step-by-step explanation:
Which expression is equivalent to (m2p–2r7)(m–5p4r2)?
Answer:
=(m2p+−2r7)(m+−5p4r2)
=(m2p)(m)+(m2p)(−5p4r2)+(−2r7)(m)+(−2r7)(−5p4r2)
=m3p−5m2p5r2−2mr7+10p4r9
=10p4r9−5m2p5r2−2mr7+m3p
Step-by-step explanation:
:D
a tv costs 800 plus vat at 20% what is the total cost of the tv
Find the missing side lengths leave your answerss as radicals
Answer:
a= 5[tex]\sqrt{2}[/tex]
b=5