Answer:
i don't know do you know
Step-by-step explanation:
Please Help Me
The ratio of the number of combinations (2n+2) of different objects taken n at a time to the number of combinations of (2n-2) of different objects taken n at a time is 99:7. Find the value of n.
The expected value of n is 1.152
The question states that ratio of 2n+2 and 2n-2 = 99:7. This means that
2n+2:2n-2 = 99:7, this also means that
[tex]\frac{2n+2}{2n-2}[/tex] = [tex]\frac{99}{7}[/tex]
If that is so, we can cross multiply so that
99 * (2n - 2) = 7 * (2n + 2), on expanding the bracket, we have
198n - 198 = 14n + 14
198n - 14n = 14 + 198
184n = 212, dividing both sides by 184, we have
n = 212/184
n = 1.152
Therefore, the value of n is 1.152
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Sensei Umeh’s ""Active Hands"" karate program grew from 8 members to 15 last week. What is the percent of change?
Answer:
187.5% increase
Step-by-step explanation:
Percent change formula: [tex]\frac{x_{2}-x_{1}}{x_{1}}[/tex]
Initially, the program had 8 members and ended with 15 so [tex]\frac{15-8}{8}=\frac{7}{8}=0.875=87.5[/tex]
Find the simple interest.
Principal
$160
Rate
5.5%
Time
4 years
The simple interest is
(Simplify your answer.)
Answer:
$35.20
Step-by-step explanation:
S.I. = (P×R×T)/100
=(160×5.5×4) /100
= (640×55) / 100×10
= (64×55) / 100
= 3520 / 100
= $ 35.20
brainliest plz
Could I get help with 8-11 please :(
Answer:
8. m∠1 = 64, m∠2 = 26, m∠3 = 36
9. m∠1 = 73, m∠2 = 58, m∠3 = 107, m∠4 = 49, m∠5 = 131
10. m∠1 = 34, m∠2 = 52, m∠3 = 38, m∠4 = 94, m∠5 = 56, m∠6 = 38
11. m∠1 = 62, m∠2 = 71, m∠3 = 109, m∠4 = 35, m∠5 = 109, m∠6 = 29, m∠7 = 47, m∠8 = 62
Step-by-step explanation:
8. m∠1 = 180 - (75 + 41) = 180 - 116 = 64
m∠2 = 90 - 64 = 26
m∠3 = 90 - 54 = 36
9. m∠3 = 180 - 73 = 107
m∠1 = 73
m∠2 = 180 - (73 + 49) = 180 - 122 = 58
m∠4 = 49
m∠5 = 180 - m∠4 = 180 - 49 = 131
10. m∠6 = 90 - 52 = 38
m∠3 = m∠6 = 38, m∠2 = 52
m∠5 = 180 - (86 + 38) = 180 - 124 = 56
m∠1 = 90 - 56 = 34
m∠4 = 180 - (34 + 52) = 180 - 86 = 94
11. m∠2 = 71
m∠3 = m∠5 = 180 - 71 = 109
m∠1 = 180 - (47 + 71) = 180 - 118 = 62
m∠4 = m∠2 - 36 = 71 - 36 = 35
m∠6 = m∠2 - 42 = 71 - 42 = 29
m∠7 = 47
m∠8 = m∠1 = 62
There were 110 students at a creative writing workshop last year. This year there are 132 students. What is the percent of increase in the number of students at the workshop?
Answer:
20% increase
Step-by-step explanation:
the initial number is 110 so lets take that as a 100%
the final number is 132 and it will be x
110/132=100/x
we multiply the numerator of the first fraction with the denominator of the second fraction and vice versa.
110*x=132*100
110x=13200
x=120
Then we deduct 120 by 100 to know how much the percent increase is
(120-100)%=20% :)
A tablespoon is equivalent to about 4 teaspoons. A recipe calls for 2/3 cup of sugar for every 1/2 teaspoon vanilla. What is the unit rate in tablespoons
per cup?
Answer:
I understand the exercise is about unit rates, but why go out of the way to state false information? A tablespoon is exactly 3 teaspoons!
Anyway,
(1/2 tsp)/(2/3 cup) * (1tbsp)/(4tsp) = 1/2 * 3/2 * 1/4 = 3/16 tbsp/cup
Step-by-step explanation:
Ok
Lines AB and CD are parallel. Find the measures of the three angles in triangle ABF,Measurement of angle FAB
Answer:
not enough information
Step-by-step explanation:
in order to even think about solving this we need at 2/3 measurements
like aas, sas, sss ect
please help me this is due tomorrow and I can't figure this out (IXL CC.2 8th grade)
The answer is suppose to look like this (_____,___) AND IF YOU CAN TAKE A SCREENSHOT OF THE GRAPH( picture provided) AND SHOW ME WERE THE LINES MEET.
Answer:
at point (4,4)
Step-by-step explanation:
Answer:
( 4 , 4 )
Step-by-step explanation:
Help please help me
Answer:Hi
Step-by-step explanation:
Distance describes how far an object has moved along its path.
Displacement describes how far an object has moved from its starting point to its final position.
Step-by-step explanation:
Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion. Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.
Answer:
Distance travelled by skateboard is 1.5 miles.
Displacement is 1 mile.
please help i need help
Answer:
fractions
d
its right answer
Answer:
The answer to your question is D Fractions
Step-by-step explanation:
Fractions and decimals are two different ways to represent parts of a whole number.
I hope this helps!
Reflect Quadrilateral Hover both the x and y
axis.
just tell me the coordinates please and thank you so much
Answer:
(0,-7) (2,0) (7,0) (7,2)
Step-by-step explanation:
A pack of 24 crayons costs the manufacturer $0.05 to make and is sold to the stores for $0.25. The
stores sell the crayons for $0.50 during Back to School week.
An equation that represents the mark up cost by the manufacturer is (Select]
. An equation that represents the store mark up cost is (Select]
. A
V
composition of these two functions is (Select)
. It represents
[ Select]
The answers is P(C)=2c P(C) =5c P(C) =10c
We want to find equations for the different markups for the manufacturer and the stores that sell the crayons.
We know that a pack of 24 crayons costs $0.05 to make.
Is sold to stores for $0.25
The stores sell it for $0.50
Now we want to get the markup equation for the manufacturer, this is:
Markup = 100%*(price - cost)/(cost) = 100%*($0.25 - $0.05)/$0.05 =400%
For the store it is:
Markup = 100%*($0.50 - $0.25)/($0.25) = 100%
For the composition of these two I assume you refer to the total markup (notice that these are not functions, we can't make a composition if we do not have a variable).
Comp = 100%*($0.50 - $0.05)/($0.05) = 900%
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[tex]x/6=7/2x=[/tex]
Answer:
x = √21, x = -√21
Please provide the answer for the x and z as seen in the image
Geometry questions need some help
Step-by-step explanation:
8) x=23sin(48) =17.1m
9) x=11cos42=8.2ft
Answer Asap!
<3 THX <3
XOXO Also giving out brainliest!
Answer:
4,3 becomes 0,0 after the changes
Answer:
32
Step-by-step explanation:
28 29 30
can someone please help me with this
Answer:
∠ R = 58° , ∠ Q = 32°
Step-by-step explanation:
Complementary angles sum to 90°
∠ Q is 26° less than ∠ R , so ∠ Q = ∠ R - 26° , then
∠ Q + ∠ R = 90° , that is
∠ R - 26° + ∠ R = 90°
2 ∠ R - 26° = 90° ( add 26° to both sides )
2 ∠ R = 116° ( divide both sides by 2 )
∠ R = 58°
∠ Q = 58° - 26° = 32°
Kira is going to rent a truck for one day. There are two companies she can choose from, and they have the following prices.
Company A charges an initial fee of $35 and an additional 60 cents for every mile driven.
Company B charges an initial fee of $42 and an additional 50 cents for every mile driven.
For what mileages will Company A charge less than Company B?
Write your answer as an inequality, using m for the number of miles driven.
Answer:
m < 0.7
Miles less than 0.7
Step-by-step explanation:
Company A: 60m + 35
Company B: 50m + 42
60m + 35 < 50m + 42
60m - 50m < 42 - 35
10m < 7
m < 7/10 (0.7)
please help im confused
Hi there!
We are given two exterior angles. Don't panic! We know that exterior angles form a linear pair, which means they add up to 180 degrees.
180-130=50
180-96=84
Now that we have those angles, how can we work out the value of x?
Turns out that all the angles in any triangle add up to 180 degrees.
So
180-84-50=46 degrees.
So the value of x is 46 degrees.
Now let's work out the value of x in the next problem.
180-126=54
180-54-43=83 degrees
So the value of x in this problem is 83 degrees.
Let's move on to the third problem.
At first, it seems like we do not have enough information.
If we know that the right angle is 90 degrees (it is shown by a little square), then we have enough information.
180-90-43=47 degrees
So the value of x is 47 degrees.
Hope this helps you!
~Just an emotional teen who listens to her favorite song "Try Everything"
[tex]SilentNature[/tex]
What’s the perimeter of 4 feet long and 4 feet wide
4 times 4 so your awnser is 12
Hope that helps :)
Answer:
16
Step-by-step explanation:
4+4+4+4
what is the equation for the line that is parallel to the y-axis and passes through the point (2, -5)?
Answer:
X = 2
Step-by-step explanation:
There are five red, 3 blue and a white marble in a jar. What is the probability of selecting
a white marble, replacing it, then selecting a white marble again?
Answer:
1/81 I think now 100% sure though
Cuál es el volumen de un cilindro que tiene 42cm de radio y una altura de 1.20m?
Answer:
V = 665,012 cm^2 (centímetros cuadrados)
Step-by-step explanation:
V= (pi) x (r^2) x (h)
V = 3.14 x 1764 x 120cm = 665012 cm^2
Which of the following quadrilaterals must have at least one pair of parallel sides?
Check all that apply.
Rectangle, Square, Trapezoid, Parallelogram, Kite, Rhombus.
Explain your answer.
The quadrilaterals that must have at least one pair of parallel sides include all of the following except trapezoid. This implies Rectangle, Square, Parallelogram, Kite, Rhombus
What is a quadrilateral?A quadrilateral is a four-sided polygon with four edges and four corners in geometry. The word comes from the Latin words quadri, a variant of four, and latus, which means "side." A quadrilateral is a closed shape that has four sides, four vertices, and four angles. It's made by connecting four non-collinear points. The sum of quadrilateral interior angles is always 360 degrees.
A rectangle is a quadrilateral with four right angles in Euclidean plane geometry. It can also be defined as an equiangular quadrilateral because all of its angles are equal; or a parallelogram with a right angle. A square is a rectangle with four equal-length sides.
A parallelogram is a simple quadrilateral with two pairs of parallel sides in Euclidean geometry. A parallelogram's opposite or facing sides are equal in length, and its opposite angles are equal in size.
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The expression -7y is a
a. term
b. variable
c. constant
Answer:
the answer is a) term
Step-by-step explanation:
hope this helps! :)
brainliest?
6.) Danasia has two summer jobs. During the week she works in the grocery store and on the
weekend she works at a nursery. She gets paid $15 per hour to work at the grocery store and
$18 per hour to work at the nursery. The one week she made $630. Write an equation to
model the situation.
Answer: 630 = 15x + 18y
Step-by-step explanation:
Guys can u please help i can explain it so i gotta send a photo i always give hearts and 5 stars :D the photo is down below
Answer:
5x cm
Step-by-step explanation:
Total length of AE = 2x + 3x
= 5x cm
why is 3/8 bigger than 3/12
Answer:
3/8 is is bigger then 3/12
Step-by-step explanation:
The reason is that 3/12 is equivalent to 2/8 and 3/8 is equivalent to 6/16
Sorry if its wrong! ^^""
As, 0.375> 0.25, so, 3/8 is greater than 3/12.
Here, we have,
To get the answer, we first convert each fraction into decimal numbers.
We do this by dividing the numerator by the denominator for each fraction as illustrated below:
3/8 = 0.375
3/12 = 0.25
Then, we compare the two decimal numbers to get the answer.
0.375 is greater than 0.25.
i.e. 0.375> 0.25, as 0.375 - 0.25 = 0.125
Therefore, 3/8 is greater than 3/12.
Hence, As, 0.375> 0.25, so, 3/8 is greater than 3/12.
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Emily went to soccer practice 6 times last month. Each practice is 90 minutes long.
How long did Emily spend at soccer practice last month?
Answer:
74 days. thanks me later lol nag check out
Answer:
What is 540 minutes or 9 hours spent practicing soccer
Step-by-step explanation:
90*6=540 minutes
540/60(minutes in 1 hour)
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