Answer:
n=23
Step-by-step explanation:
38=15+n
step 1 subtract each side by 15
23=n
n is equal to 23
hope this helps :)
Answer:
n=23
Step-by-step explanation:
38-15=23 you gotta subtract
An artist can create 4 pieces of pottery in 2 hrs. What is the artists unit rate in minutes without units?
Answer:
2 piece per hour
Step-by-step explanation:
Given data
Quantity= 4 pieces
time= 2 hours
Required
The unit rate
rate= quantity/time
rate= 4/2
rate= 2 piece per hour
In a statistics activity, students are asked to determine if there is a difference in the proportion of times that a spinning penny will land with tails up, and the proportion of times a spinning dime will land tails up. The students are instructed to spin the penny and the dime 30 times and record the number of times they land tails up. For one student, the penny lands tails side up 18 times, and the dime lands tails side up 20 times.
Based on the 98% confidence interval, (–0.36, 0.22), is there evidence of a difference in proportions of tails side up for a penny and a dime?
There is convincing evidence because the two sample proportions are different.
There is not convincing evidence because the interval contains 0.
There is not convincing evidence because the interval contains both negative and positive values for the true difference.
Answer: B) There is not convincing evidence because the interval contains 0.
==============================================================
Explanation:
The 98% confidence interval (-0.36, 0.22) means we are 98% confident that the difference of proportions p1-p2 is somewhere between those two endpoints of -0.36 and 0.22 Values in this interval are possible values of p1-p2.
Note how 0 is in this interval. So it's possible that p1 - p2 = 0. Because of this, we fail to reject the null hypothesis. The null in this case is that p1 - p2 = 0 which can be restated as p1 = p2. The null is the assumption that the two population proportions (p1 and p2) are the same.
The alternative hypothesis is that p1-p2 is not zero. If we got a confidence interval like (0.22, 0.55), this example doesn't have 0 in the interval, then that would mean we reject the null since its unlikely that p1-p2 is equal to zero.
----------------
In short,
If the confidence interval contains 0, then you fail to reject the nullIf the confidence interval doesn't contain 0, then you reject the null.In this case, we fail to reject the null and we don't have enough evidence to show that p1 = p2 is false. So for now, we assume it's true.
2) Find the area. *
7 points
12 cm
2 cm
4 cm
6 cm
24
O 12
36
48
Answer:
36cm
first we extend one of the half lines.
now we have 2 rectangles with sides
6cm and 4cm and 2cm and 6cmusing area of rect formula we find the area of both the rects separately and then add them
Please help anyone greatly appreciated
Answer:
Step-by-step explanation:
2(3x6+3x2+6x2)=72
Sameen works at an office. During her lunch break, she rides her bicycle to her favorite sandwich shop and eats lunch at a
local park. The graph below shows the distance she is from work over time.
Sameen's Lunch Break
1.5
1.2
0.9
Distance from Work (miles)
0.6
0.3
24
30
6 12 18
Number of Minutes
Select the statement that is true regarding Sameen's lunch break based on the graph.
A Between 0 minutes and 6 minutes, Sameen's distance from work is constant.
B
Between 6 minutes and 9 minutes, Sameen's distance from work is decreasing.
С
Between 9 minutes and 27 minutes, Sameen's distance from work is 0 miles.
D
Between 27 minutes and 30 minutes, Sameen's distance from work is increasing.
Answer:
d?...........................
The value of Maggie's car decreased by 25% since last year, when she bought it. If the car is now worth $11,000.00, how much was the car worth when she bought it?
Answer: Do 1.25(19,000.00) and you get 23,750
Step-by-step explanation:
914
a14
256, 128, 64, 32, ...
What's next?
Answer:
16
Step-by-step explanation:
from what I can tell the numbers are being cut by 1/2 every time meaning that half of 32 is 16 thus it is the most logical answer
bu soruyu yapana 15 puan
Answer:
?????????????
Step-by-step explanation:
You decide to invest $250 in an account that yields a return of approximately 4% each year. If you were to write an exponential equation representing the situation, what would the initial value be?
Answer:
250x.04=x
Step-by-step explanation:
250x.04 would be 10 so you get a 10 doller return each year.
You decide to invest $250 in an account that yields a return of approximately 4% each year. Then, the initial value would be 10 doller return each year.
What are exponential functions?When the expression of function is such that it involves the input to be present as exponent (power) of some constant, then such function is called exponential function.
There usual form is specified below. They are written in several such equivalent forms.
For example, [tex]y^{x}[/tex], where a is a constant is an exponential function.
You decide to invest $250 in an account that yields a return of approximately 4% each year.
If you were to write an exponential equation representing the situation,
= 250 x 0.04
= 10
Then, the initial value would be 10 doller return each year.
Learn more about exponential ;
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The end points of cd are given.find the coordinates of the midpoint M. C(-8,-6) and D(-4,10)
Answer:
i dont know this is ut of my slybos
Step-by-step explanation:
The end points of cd are given.find the coordinates of the midpoint M. C(-8,-6) and D(-4,10)
Answer this correctly and ill give brainliest and max rating
Answer:
I think its C
Step-by-step explanation:
i hope that's right
1. Name a pair of similar parallelograms. Explain. (You don’t have to)
2. Name another pair of parallelograms. Explain (optional)
3. Are parallelograms A and C similar? Why or why not?
plz i need this by today or my math teacher will send a email to my parents saying i have a missing assignment and my parents are really strict (like when i say strict i mean strict strict)
Answer:
1) D and F, their side lengths are proportional and same degree corners
2) E and F
3) yes, their side lengths are proportional and same degree corners
Step-by-step explanation:
13 in. 30 in. 13 in. 9 in. find the volume
Answer:
13 x 30 x 13 x 9 = 45,630
Answer:
13 x 30 x 13 x 9 = 45,630
all youre doing is multiplying :')
yw ;)
Step-by-step explanation:
jajajaja helppppppppp <3
you can subtract from point 1 to point 2
(9,-2) - (8,3)
9-8= 1
-2-3= -5
therefore horizontal leg is 1
vertical leg is -5
you can also sketch and count the units :)
Travelling 900 km by rail costs of Rs 280. What would be the fare for a journey of 360 km when a person travels by the same class?
Answer:
Image attached
Step-by-step explanation:
Hope it helps!!!!
rate her 1-10 for a study
1*9999999999999999999999999, i will give brainliest, but you mut have every single 9 in the answer, ok?
99999999999999999999999999
Which equation matches the hanger diagram?
pls help !!!
Option D is correct, 2x=5 is the equation which matches the hanger diagram.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
We need to find the equation which matches the hanger diagram.
Hanger models are a visual representation of an equation
For the hanger to remain balanced, each side has to have the same weight. Like a seesaw, a scale, or a barbell.
In the left side of hanger there 2 x's and on right side there are fives ones.
So 2x=5 is the equation which satisfies the given hanger diagram.
Hence, Option D is correct, 2x=5 is the equation which matches the hanger diagram.
To learn more on Equation:
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Find the missing side of the right
triangle.
7
4
Х
X=
<= [?]
The missing side of the right angle triangle is 8.0622577483 units.
What is Pythagoras theorem?In a right-angled triangle, the square of the hypotenuse side is equal to the sum of the squares of the other two sides, according to Pythagoras's Theorem.
Given:
Triangle is a right angle triangle.
And the sides of a right-angled triangle are:
Base = 4 unit
Perpendicular = 7 units.
To find the length of the hypotenuse:
We apply Pythagoras theorem,
(hypotenuse)² = (base)² + (perpendicular)²
Substituting the values in the equation,
(hypotenuse)² = (4)² + (7)²
(x)² = 16 + 49
(x) = √(65)
(x) = 8.0622577483
Therefore, the value of x is 8.0622577483 units.
To learn more about the Pythagoras theorem;
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Can someone please help with these i only need the odd number questions
Answer:
1) x = 12.2
3) x = 21.7
5) x = 17.9
7) x = 31.8
Step-by-step explanation:
Use Pythagorean Theorem (a^2 + b^2 = c^2 where a and b are bases and c is hypotenuse)
1) 10^2 + 7^2 = x^2
100 + 49 = x^2
149 = x^2
x = sqrt 149 which is about 12.2
3) 16^2 + x^2 = 27^2
256 + x^2 = 729
x^2 = 473
x = sqrt 473 which is about 21.7
5) 9^2 + x^2 = 20^2
(we know the other base is 9 because in an isosceles triangle, the altitude (the height) is the same as the median (which divides the base into half)
81 + x^2 = 400
x = sqrt 319 which is about 17.9
7) 16^2 + y^2 = 22^2 (y is the height of the triangle)
256 + y^2 = 484
x = sqrt 228
(sqrt 228)^2 + (44-16)^2 = x^2
228 + 784 = x^2
x^2 = sqrt 1012 which is about 31.8
The circle shown has a radius of 4 cm.
Not drawn
to scale
What is the length of the diameter of the circle?
cm
Answer:
8 cm
Step-by-step explanation: diamater is half the radius
Describe the graph of the inequality on a number line: x ≥ 11
Answer:
Here is how it should look
Step-by-step explanation:
Hi guys can you answer my math question
Answer:
Hindi KO po Alam yan
Step-by-step explanation:
pagaralan mo nang mabuti
Answer:
6 plus 6 or 10 plus 2
Step-by-step explanation:
pretty
that adds up to 12
4x-8+3x-16+95=180 or else im so confused
Answer:
x = 17, see below for angle measures
Step-by-step explanation:
You're on the right track!
The sum of those two angles inside the triangle equal that opposite angle outside of the triangle. Therefore, you can set them equal to each other.
(4x - 8) + (3x - 16) = 95
Because you are adding the expressions, you can take away the parentheses without changing anything.
4x - 8 + 3x - 16 = 95
Now you want to combine like terms on the left side.
4x + 3x - 8 - 16 = 95
7x - 24 = 95
Combine like terms once again.
7x = 119
Divide to isolate x.
x = 119/7
x = 17
Plug this value back into each expression to find the angle measures.
∠HFG = 4x - 8
∠HFG = = 4(17) - 86
∠HFG = 68 - 8
∠HFG = 60º
∠FGH = 3x - 16
∠FGH = 3(17) - 16
∠FGH = 51 - 16
∠FGH = 35º
∠FHI = 95ª
∠FHG = 180 - 95
∠FHG = 85º
HELP ASAP!!!
100 students were asked if they study German, French or Spanish.
40 students study German.
13 students study German, French and Spanish.
19 students study German and Spanish but G
not French
18 students study French and Spanish.
40
41 students do not study any of the languages.
All 25 students who study French also study at
least one other language.
13
a) Complete the Venn diagram.
b) Two of the 100 students are chosen at random.
Work out the probability that they both only study spanish.
Answer: down below
Step-by-step explanation:
Hope that helps you! :)
help guys I would appreciate
Answer:
4 + 8
12 >= 12
TRUE
Becuase 12 equals 12
Step-by-step explanation:
A rectangular garden has length and width as given by the expressions below. Length: 4 - 7 (3x + 4y) Width: 3x(-2y) Write a simplified expression for the perimeter of the rectangle.
Answer:
⇒ 8 − ⇒ 42x − ⇒ 56y − ⇒ 12xy
Step-by-step explanation:
Im smart
Answer:
8 − 42x − 56y − 12xy
Step-by-step explanation:
Yes.
2. The Biology club budgeted $200 for their pancake breakfast. Each meal costs $1.50 to prepare. Write an inequality that represents the number of meals that can be prepared without going over budget. What is the maximum number of meals that the biology club can prepare for $200?
Answer:
$1.00
Step-by-step explanation:
PLEASE HELP ITS DUE AT MIDNIGHT
Step-by-step explanation:
[tex]\frac{9.00 - 7.50}{7.50} \times 100\% = 20\% \: increase[/tex][tex] \frac{6.50 - 5.00}{5.00} \times 100\% = 30\% \: increase[/tex][tex] \frac{4.50 - 2.00}{2.00} \times 100\% = 125\% \: increase[/tex][tex] \frac{2.00 - 2.50}{2.50} \times 100\% = - 20\%[/tex]In order to get the increase or decrease, we need to get the difference of the two prices first. Then, pick a "reference year".
From the calculations, notice how I made the earlier years as my reference points. If the calculations produced positive results, therefore, it has increased. If it produced a negative results, from the reference year's price, it has decreased in price.
The function f(x) = x2 - 6x + 9 is shifted 5 units to the right to create g(x).
What is g(x)?
A. g(x) = (x + 5)2 - 6(x + 5) +9
B. g(x) = (x2 - 6x + 9) + 5
C. g(x) = (x2 - 6x + 9) - 5
D. g(x) = (x - 5)2 - 6(x - 5) + 9
Answer:
D. g(x)=(x-5)^2 -6(x-5)+9
Step-by-step explanation:
math
