Answer:
50.4
Step-by-step explanation:
mean is just another way for syaing average
all the numbers added = 504
dived it by the number of scores
504 divided by 10 = 50.4
10
13
16
19
22
25
28
What is the mean?
What is the standard deviation?
What percentage of values should fall between 19 and 22?
Which value has a score of -2?
Answer:
mean is 19
Step-by-step explanation:
sorry that's all I know
Para reunir dinero para su gira de estudios , los alumnos de un curso deciden vender números de una rifa que se encuentran numeradas del 1 al 100 ¿Cual es la probabilidad de ganar en la rifa si se compran todos los numeros que sean multiplos de 3 o de 5?
Respuesta:
0.53
Explicación:
Para calcular la posibilidad del evento A: "ganar la rifa comprando todos los números múltiplos de 3 o 5", debemos usar la siguiente fórmula.
P(A) = casos favorables / casos posibles
Evaluemos primero todos los casos que son múltiplos de 3, entre 1 y 100: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99. En total son 33.
Ahora, evaluemos todos los casos que son múltiplos de 3, entre 1 y 100: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100. En total son 20.
El número total de casos favorables es 33 + 20 = 53.
El número de casos posibles es el total de números de 1 a 100, es decir 100.
Luego P(A) = 53/100 = 0.53.
since the triangle is
a.right
b.isosceles
c.equilateral
Step-by-step explanation:
plz write full question
Answer:
I need a more information
Step-by-step explanation:
3 Anthony has
$5 to buy breakfast in the
cafeteria a few times this week. Each
breakfast costs $1.25. Which inequality
represents the relationship between the
number of breakfasts, b, he can buy and
the amount of money he has?
F 5 1.25 + b
G5 < 1.25 + b
H 5 > 1.25b
J 5 < 1.25b
Answer:
The answer would be letter J
The inequality for total expenditure & number of breakfasts is 5 > 1.25b
Formulation of inequality equation for expenditure & breakfasts
Assumed : Number of breakfasts = b
Number of breakfast meals x Price per breakfast meal = Total Expenditure
Total expenditure should be less or than equal to $1.25
So, 1.25b < 5
It implies that inequality : 5 > 1.25b
To learn more about Inequality, refer https://brainly.com/question/19491153?referrer=searchResults
MAAP REVIEW TEST 1 ATTEMPT Section 1 21 of 6821 of 68 Items 53:53 / 02:20:00 Item 21 Mrs. Peele has 1114 pounds of cookie dough. A batch of cookies requires 212 pounds of cookie dough. How many batches of cookies can Mrs. Peele make? 334 batches 3 and 3 fourths, [if gte msEquation 12]>34 412 batches 4 and 1 half, [if gte msEquation 12]>12 834 batches 8 and 3 fourths, [if gte msEquation 12]>34 2818 batches 28 and 1 eighth, [if gte msEquation 12]>18
Answer:
4 1/2
Step-by-step explanation:
Mrs. Peele has 11 1/4 pounds of cookie dough. A batch of cookies requires 2 1/2 pounds of cookie dough. How many batches of cookies can Mrs. Peele make?
Number of batches = total pounds of Dough Mrs Peele has / total dough required to make one batch
11 1/4 ÷ 2 1/2
convert the mixed fractions to improper fraction
to convert to improper fraction, take the following steps :
1. Multiply the whole number by the denominator
2. Add the numerator to the answer gotten in the previous step
3. divide the number gotten in the previous step by the denominator
45/ 4 ÷ 5/2
45 / 4 x 2/5 = 9/2 = 4 1/2
Complete the square to go to the conic form of the circle. x^{2}+y^{2}+8x-2y+1=0
Answer:
Step-by-step explanation:
[tex]x^2+8x+y^2-2y=-1\\\\x^2+8x+16+y^2-2y+1=-1+16+1\\(x+4)^2+(y-1)^2=16\\\\(x+4)^2+(y-1)^2 = 4^2[/tex]
solve for x. The segments labeled in the picture are the tangets.
A sphere has a surface area of 2,122.64 square meters. Which equation can you use to find the radius?
2,122.64 = 4pie r
2,122.64 = 4pier²
2,122.64 = 4(pier)2
2,122.64 = (4pier)2
Answer:
12.997
Step-by-step explanation:
this is the answer but i don't understand the rest of this question :
. Which equation can you use to find the radius?
2,122.64 = 4pie r
2,122.64 = 4pier²
2,122.64 = 4(pier)2
2,122.64 = (4pier)2
hope this helps
If the volume of the pyramid shown is 108in, what is the area of its base? 9 in= height
a. 4 in
b. 12 in
c. 24in
d. 36 in
Answer: D, 36in.
Step-by-step explanation:
One diagonal of the kite is three times as long as the other diagonal. If the area of the kite is 48 square meters, what is the length of each diagonal?
Given:
One diagonal of the kite is three times as long as the other diagonal.
The area of the kite is 48 square meters.
To find:
The length of each diagonal.
Solution:
We know that, the area of the kite is:
[tex]A=\dfrac{d_1d_2}{2}[/tex]
Where, [tex]d_1,d_2[/tex] are two diagonals of a kite.
It is given that, one diagonal of the kite is three times as long as the other diagonal.
Let [tex]d_1=3d_2[/tex]. Then the area of the kite is:
[tex]A=\dfrac{3d_2d_2}{2}[/tex]
[tex]A=\dfrac{3d_2^2}{2}[/tex]
The area of the kite is 48 square meters.
[tex]\dfrac{3d_2^2}{2}=48[/tex]
[tex]3d_2^2=2(48)[/tex]
[tex]d_2^2=\dfrac{96}{3}[/tex]
[tex]d_2^2=32[/tex]
Taking square root on both sides, we get
[tex]d_2=\sqrt{32}[/tex] [It is only positive because side length cannot be negative]
[tex]d_2=4\sqrt{2}[/tex]
Now,
[tex]d_1=3d_2[/tex]
[tex]d_1=3(4\sqrt{2})[/tex]
[tex]d_1=12\sqrt{2}[/tex]
Therefore, the diagonals of the kite are [tex]4\sqrt{2}[/tex] units and [tex]12\sqrt{2}[/tex] units.
What is the first step when designing an algorithm?
Think about what could go wrong.
Consider changes that might happen.
Look at the big picture.
Look at what steps will be repeated.
Answer:
Look at the big picture.
Step-by-step explanation:
When creating an algorithm you should look at the big picture because it helps you understand what you need to do to correctly set up the algorithm.
Answer:
Look at the big picture.give the other person brainliest :]In which number does the digit 2 have a value that is ten times as great as the value of the digit 2 in the number 135,284?
PLEASE HELP!
Answer:First and foremost, we should note that the value of the digit 2 in the number 135,284 is (200). Therefore, the value that is ten times as great as the value of the digit 2 in the number 135,284 would be:
= 10 × 200
= 2000
Therefore, the 2 must be in the thousands place. This can be seen in numbers such as:
172748.
Step-by-step explanation:YW:)
Substitution method please help :3
Answer:
5x-27y=-2
Step-by-step explanation:
-2x+7x=5x
y-3y=-27y
0-2=-2
5x-27y=-2
solve the inequality 4x + 6>22
Answer:
it is x>4 I solved it out.
Write the domain of
Y= x+1/
(x+2)(x+10)
(-∞,-10)∪(-10,-2)∪(-2,∞)
Or
[tex]\left\{x|x\ne-2,-10\right\}[/tex]
Both are correct.
Write the equation of the line that passes through (−3,1) and (2,−1) in slope-intercept form
Answer:
[tex]y=-\frac{2}{5}x-\frac{1}{5}[/tex]
Step-by-step explanation:
The equation of a line is y = mx + b
Where:
m is the slopeb is the y-interceptFirst, let's find what m is, the slope of the line.
Let's call the first point you gave, (-3,1), point #1, so the x and y numbers given will be called x1 and y1.
Also, let's call the second point you gave, (2,-1), point #2, so the x and y numbers here will be called x2 and y2.
Now, just plug the numbers into the formula for m above, like this:
[tex]m = -\frac{2}{5}[/tex]
So, we have the first piece to finding the equation of this line, and we can fill it into y=mx+b like this:
[tex]y=-\frac{2}{5}x + b[/tex]
Now, what about b, the y-intercept?
To find b, think about what your (x,y) points mean:
(-3,1). When x of the line is -3, y of the line must be 1. (2,-1). When x of the line is 2, y of the line must be -1.Now, look at our line's equation so far: [tex]y=-\frac{2}{5}x + b[/tex]. [tex]b[/tex] is what we want, the -[tex]-\frac{2}{5}[/tex] is already set and x and y are just two 'free variables' sitting there. We can plug anything we want in for x and y here, but we want the equation for the line that specfically passes through the two points (-3,1) and (2,-1).
So, why not plug in for x and y from one of our (x,y) points that we know the line passes through? This will allow us to solve for b for the particular line that passes through the two points you gave!
You can use either (x,y) point you want. The answer will be the same:
(-3,1). y = mx + b or [tex]1=-\frac{2}{5} * -3 + b[/tex], or solving for b: [tex]b = 1-(-\frac{2}{5})(-3)[/tex].[tex]b = -\frac{1}{5}[/tex]. (2,-1). y = mx + b or [tex]-1=-\frac{2}{5} * 2 + b[/tex], or solving for b: [tex]b = 1-(-\frac{2}{5})(2)[/tex]. [tex]b = -\frac{1}{5}[/tex].See! In both cases, we got the same value for b. And this completes our problem.
The equation of the line that passes through the points (-3,1) and (2,-1) is [tex]y=-\frac{2}{5}x-\frac{1}{5}[/tex]
Which ratio compares the number of daffodil bulbs to the number of tulip
bulbs?
Answer:
2:3
Step-by-step explanation:
8:12
divide by 4
2:3
Good luck on your test
Answer:Well it's probably 1:5
Step-by-step explanation:
Tell me If I was wrong :<
The weight of 4 eggs is shown. Identify the constant of proportionality of total weight to number of
eggs.
The weight of 4 eggs is 188 g
Answer:
47g
Step-by-step explanation:
Pythagorean Theorem Level 2
Answer:
10
Step-by-step explanation:
Pyth. Theorem:
a = leg, b = leg, c = hypotenuse
[tex]c = \sqrt{ {a}^{2} + {b}^{2} }[/tex]
The length of the third side
=
[tex]\sqrt{ {5 \sqrt{3} }^{2} + {5}^{2} }[/tex]
=
[tex]\sqrt{75 + 25}[/tex]
=
[tex]\sqrt{100}[/tex]
= 10
what is the answer to 6 4/7 x 2/3
Answer:
4 8/27
Step-by-step explanation:
Nina can type 128 words in 4 minutes. At this rate, how many words can Nina type in an hour.
Answer:
1,920 words
Step-by-step explanation:
60 divided by 4 is 15
15 times 128 is 1,920.
Hope it helps! :)
Answer:
1920
Step-by-step explanation:
We know that it takes her 4 minutes to type 128 words
So we need to figure out how many it takes her to type a word per minute
128 divided by 4=32
So multiply 32 word by 60 ( 60 mins = an hour)
Answer=1920
6.4=0.8m what does m equal
Answer:
0.8
Step-by-step explanation:
8x8=64 but put the decimal point back in 0.8x0.8=6.4
Find the gradient of the line segment between the points (-1,3) and (1,-2).
Give your answer in its simplest form.
The answer is -5/2, hope this helps you!
1. Find the area of each circle. Use 3.14 for A. Round to the nearest tenth.
5cm
RE
Answer:
78.5 cm²Step-by-step explanation:
Area of circle:
A = πr²A = 3.14*5² = 78.5 cm²I’m just confused help!
Answer:
Step-by-step explanation:
180
50 pt = ?gal
50 pt = ?pt
PLEASE HELPPPP
Answer:
50 pints is 6.25 gallons.
What do you mean by the second one?
Step-by-step explanation:
50 ÷ 8 = 6.25
Answer:
50 pints is 6.25 gallons.
50 ÷ 8 = 6.25
Step-by-step explanation:
A 10-foot ladder leans against a wall so that it is 6 feet high at the top. The ladder is moved so that the base of the ladder travels toward the wall twice the distance that the top of the ladder moves up. How much higher is the top of the ladder now? (Hint: Let 8−2x be the distance from the base of the ladder to the wall.)
Answer:
Step-by-step explanation:
The Pythagorean Theorem holds for both positions.
The first configuration is an 6-8-10 right triangle.
The second configuration using the Pythagorean Theorem:
10^2 = (8-2x)^2 + (6 + x)^2
100 = 64 - 32x + 4x^2 + 36 + 12x + x^2
100 = 100 - 20x + 5x^2
5x^2 - 20x = 0
5x(x - 4) = 0
x = 4 feet (we throw out the x = 0 solution as extraneous)
Answer:
Step-by-step explanation:
The Pythagorean Theorem holds for both positions.
The first configuration is an 6-8-10 right triangle.
The second configuration using the Pythagorean Theorem:
10^2 = (8-2x)^2 + (6 + x)^2
100 = 64 - 32x + 4x^2 + 36 + 12x + x^2
100 = 100 - 20x + 5x^2
5x^2 - 20x = 0
5x(x - 4) = 0
x = 4 feet (we throw out the x = 0 solution as extraneous)
A random sample of size 32 is selected from population X, and a random sample of size 43 is selected from population Y. A 90 percent confidence interval to estimate the difference in means is given as (−1.25,0.87)
.
Consider a change in the sample sizes such that a random sample of size 52 is selected from population X and a random sample of size 63 is selected from population Y. When all other things remain the same, what effect would such a change have on the interval?
Answer:
The level of confidence will increase.
Step-by-step explanation:
Could be wrong
The change in the sample size will lead to a decrease in the width of the interval.
What is a sample size?A sample size simply means the number of subjects that are taken from the population for research.
In this case, increasing the sample size will decrease the standard error and therefore, the width of the confidence interval will reduce.
Therefore, as the sample size increases, the interval reduces.
Learn more about sample size on:
https://brainly.com/question/14470673
Tommy rides his bike 27 miles in 3 hours. If he rides at a constant speed, select the answer below that is equivalent ratio to the speed he rides. pls help ASAP
REAL ANSWERS ONLY!!! 20 POINTS
Answer:
113°Step-by-step explanation:
Angle formed by two chords = 1/2(sum of intercepted arcs)
m∠NSR = 1/2(176° + 50°) m∠NSR = 113°