Answer:
-1+81+8
Step-by-step explanation:
Can someone help me please
Answer:
5n units
Step-by-step explanation:
C=2πr =2·π·2.5
There are 1,600 students at a university. 24% of students are sophomores, 20% are juniors, and 28% are seniors. How many students at the university are freshmen?
Answer:
There are 448 freshmen
Step-by-step explanation:
Work out the surface area
Answer:
189
Step-by-step explanation:
6 imes 4.5divide2
13.5
13.5
67.5
54
40.5
. The function is shown belo [tex]y=2^x[/tex] If the function is translated 4 units up, which of the following will represent the y-intercept and the equation of the horizontal asymptote of the translated function?
Answer: (0,5); y= 4
Step-by-step explanation:
which of the following tables shows a proportional relationship between x and y
Answer:
B.
Step-by-step explanation:
Complete the proof.
Prove: AUWX - AUW
A)
AAS
B)
ASA
C)HL
D)
SAS
Answer:D) SAS
Step-by-step explanation:
USA test prep
i need help asappppp
Answer:
he ran (7/8)
Step-by-step explanation:
first, you add the two fractions ( i did mine with a calculator) 1.125 or 9/8
then you subtract 2 from the sum that you got
then boom there your answer
What is greater 5 cm or 2 in
Suppose that 30% of the applicants for a certain industrial job possess advanced training in computer programming. Applicants are interviewed sequentially and are selected at random from the pool.
(a) Find the probability that the first applicant with advanced training in programming is found on the fifth interview.
(b) What is the expected number of applicants who need to be interviewed in order to find the first one with advanced training?
(c) Let Y denote the number of the trial on which the first applicant with computer training was found. If each interview costs $30, find the expected value and variance of the total cost incurred interviewing candidates until an applicant with advanced computer training is found.
Answer:
Step-by-step explanation:
From the given information:
Assume X represents the no. interviewed until 1 has advanced training.
X obeys a Geometric distribution with parameter 0.3.
X [tex]\sim[/tex] Geom (0.30)
For geometric distribution, the probability density is:
[tex]P(X =x) = p(1-p) ^{x-1} \ \ \ where; x =1,2,3...[/tex]
TO calculate the required probability;
[tex]P(X =5) =0.30 (1-0.30)^{5-1}[/tex]
[tex]P(X =5) =0.30 (0.70)^{4}[/tex]
[tex]P(X=5) = 0.30 \times 0.2401[/tex]
[tex]\mathbf{P(X=5) = 0.07203}[/tex]
(b)
The expected no. of applicants that need to be interviewed are:
[tex]E(X)=\dfrac{1}{p}[/tex]
[tex]E(X)=\dfrac{1}{0.30}[/tex]
E(X) = 3.33
(c)
The mean and the variance can be computed as:
[tex]E(Y) = \dfrac{1}{p}[/tex]
[tex]E(Y) = \dfrac{1}{0.30}[/tex]
E(Y) = 3.33
[tex]V(Y)=\dfrac{1-p}{p^2}[/tex]
[tex]V(Y)=\dfrac{1-0.3}{0.3^2}[/tex]
[tex]V(Y)=\dfrac{0.7}{0.3^2}[/tex]
[tex]V(Y)=7.778[/tex]
Suppose C represents the no. of the total cost and given that each interview costs $30.
Then C = 30Y
Recall that; C is constant for a random variable X
∴
E(C) = E(30Y)
E(C) = 30E(Y)
E(C) = 30*3.33
E(C) =99.9
E(C) [tex]\simeq[/tex] 100
V(C) = V(30Y)
V(C) = 900 V(Y)
V(C) = 900*7.778
V(C) = 7000.2
V(C) [tex]\simeq[/tex] 7000
This is a question about percent change help if you can pls!
Answer:
Step-by-step explanation:
[tex]\Delta \% =100\left(\frac{final value-initial value}{initial value}\right)\\ \\ \Delta \% =100\left(\frac{2758526-2838233}{2838233}\approx -2.8\% [/tex]
~!!!! HELP IM IN 7TH GRADE LEARNING 9TH AND 8TH PLEASE HELP !!!!~
QUESTION~
The graph of g(x) = 4|x| − 3 maps a
person’s path from their house to
school, and their path from school
to a friend’s house. At what point
is the school located?
Answer:
It would be (0,-3) ^^you can see on the graph
F(-1)=4-3x
F(2)=4-3x
Kamal is buying supplies for a science lab. He needs a piece
of wire 7 feet long. He finds wire for sale at a store that lists the
lengths in inches. How many inches of wire should Kamal buy?
A 19 in.
B
72 in.
74 in.
84 in.
Answer:
kamal needs to buy 84 in of wire.
Step-by-step explanation:
multiply the length value by 12:
if he wants 7 feet, and the store only sells it in inches, then we know what a foot is twelve inches so 12x7=84.
hope this helped! :D <3
Which of the following statements is true for a point in the first quadrant of the coordinate plane?
Answer:
The point will have both a positive x value and a positive y value.
Step-by-step explanation:
Since the question leads me to believe this is multiple choice but there are no choices provided, I will do my best to guess what it is wanting.
Mary took a test and
answerd 12 questions
in 30 minutes. At this
rate, how many
questions can she
expect to answer in
150 minutes?
Answer: Mary can expect to answer 60 questions in a 150 minutes
Step-by-step explanation:
150 divided by 30 = 5
5 x 12 = 60
Solve for the value of n.
pls help I will give brainliest + 34 points!
9514 1404 393
Answer:
n = 17
Step-by-step explanation:
The angle sum theorem tells you the angles add up to the linear angle of 180°.
(3n -5)° + 90° +44° = 180°
3n + 129 = 180 . . . . . . . . . . collect terms
3n = 51 . . . . . . . . . . . . subtract 129
n = 17 . . . . . . . . . . divide by 3
6x+3y=9,2x+3y=1 solve for the system of equations
Answer what grade i would recommend to use Socratic just take pic of it ad it will search all around for it
Step-by-step explanation:
Answer: (2,-1)
Step-by-step explanation: 3y=9-6x
insert that into 2x+3y=1
2x+9-6x=1
-4x=-8
x=2
insert that into 3y=9-6x
3y=9-12
3y=-3
y=-1
the answer is (2,-1)
12. Find mADE.
(4x +
15)
-(13x +7°
E
D
Answer:
x = 0.8888888889
Step-by-step explanation:
I think this is the answer... :)
Answer:
M<ADE= 59
Step-by-step explanation:
(4x+15) + (13x+7)=90
x=4
ADE=DBC
13*4=52
52+7=
59
_________________________________
4*4=16
16+15=31
59+31=90
an soo 59 and 31 equal 90 the answer for your question Find mADE.
(4x + 15) -(13x +7° ) the answer is (59)!
10x – 3>-23
Please helpppp
Answer:
-2 i think i am not sure though
Step-by-step explanation:
Answer:
x = -2
Step-by-step explanation:
First, add 3 to both sides to get 10x > -20. Then, divide both sides by 10 to get x = -2. I hope this helps :)
the sum of 9/10 and 5/6
Answer:
Step-by-step explanation:
9/10+5/6 =
27/30+25/30 =
52/30 = 1 22/30 =1 11/15
Answer: 26/15
Step-by-step explanation:
1. First find the common denominator, which is 30
2. Add them
3. Simplify (common factor of 2)
[tex]\frac{27}{30} + \frac{25}{30} \\\\\frac{52}{30} \\\\\\\frac{26}{15}[/tex]
Pedro bought 7 tickets to a basketball game. He paid a total of $168. Enter an equation, using x as your variable, to determine whether each ticket cost $24 or $25.
Answer:
The answer is each ticket cost $24
Step-by-step explanation:
multiply 24 by 7
24*7=168
- There are 130 people in a sport centre,
76 people use the gym,
60 people use the swimming pool,
32 people use the track,
23 people use the gym and the pool.
8 people use the pool and the track
20 people use the gym and the track,
6 people use all three facilities,
A person is selected at random
What is the probability that the person uses exactly one of the facilities?
Answer:
0.6462 = 64.62% probability that the person uses exactly one of the facilities
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
20 people use the gym and the track and 6 people use all three facilities
So 20-6 = 14 use exactly the gym and the track and 6 use all three.
8 people use the pool and the track
So 8 - 6 = 2 use exactly the pool and the track.
23 people use the gym and the pool.
So 23 - 6 = 17 use exactly the gym and the pool.
32 people use the track
So 32 - (6 + 14 + 2) = 10 use only the track.
60 people use the swimming pool
So 60 - (6 + 2 + 17) = 35 use only the pool.
76 people use the gym
So 76 - (6 + 14 + 17) = 39 use only the gym
What is the probability that the person uses exactly one of the facilities?
Out of 130, 39 + 35 + 10 = 84 use exactly one of the facilities.
84/130 = 0.6462
0.6462 = 64.62% probability that the person uses exactly one of the facilities
EASY
? I think it is
Answer:
C.
Step-by-step explanation:
NEED HELP AAAH!!!!!!!!
Answer:
x = 13
Step-by-step explanation:
We have the expression -26 - 2x = 13 - 5x and are asked to solve for x.
To solve we need to isolate x.
-26 -2x = 13 - 5x
Add 26 to both sides :
-2x = 39 - 5x
Add 5x to both sides :
3x = 39
Divide 3 from both sides :
x = 13
Help me out with this mathematic question please
Answer:
The answer is 95°!
Step-by-step explanation:
180°-60°-25°= 95°
Which figure could be the result of dilating this triangle with a scale factor greater than 1?
Answer:
The correct answer is C
Step-by-step explanation:
Because I said so
Answer: it’s c
Step-by-step explanation:
i don't really understand this problem
Answer:
Step-by-step explanation:
So what you need to do is mark to points on the graph. For example (9,4) and (18,8). The run would be 9 and the rise would be 4. Gradient = rise/run which is 4/9. So that's the gradient. Now it asks for the equation. The formula for an equation is y=mx+c m= the gradient and c = the y-intercept (the y intercept is where the line meets the axis so it would be 0) so the answer is: y=4/9x+0.
Hope this helped !!
Please Help
I dont under stand please also do step by step thanks!
Answer:
7x +1
Step-by-step explanation:
If A to C is 12x + 3, And A to B is 5x - 2 then you subtract the polynomials from each other!
12x- 5x = 7x
3 -2 = 1
So the answer is 7x +1!
(If you still need help just tell me in the comments)
At high tide, the bay is at 10 feet. As the tide recedes it is now at 8 feet. What is the percent change
If I'm correct the answer would be 8.
..........................................................................
Answer:
1. 17.8 cm
2. 32.0 cm
3. 15.9 m
Step-by-step explanation:
1. Determination of the length of the arc.
Radius (r) = 6 cm
Angle at the centre (θ) = 170°
Pi (π) = 3.14
Length of arc (L) = ?
L = θ/360 × 2πr
L = 170/360 × 2 × 3.14 × 6
L = 17/36 × 37.68
L = 17.8 cm
2. Determination of the length of the arc.
Diameter (d) = 13 cm
Angle at the centre (θ) = 282°
Pi (π) = 3.14
Length of arc (L) = ?
Next, we shall determine the radius. This can be obtained as follow:
Diameter (d) = 13 cm
Radius (r) =?
r = d/2
r = 13/2
r = 6.5 cm
Finally, we shall determine the length of the arc. This can be obtained as follow:
Radius (r) = 6.5 cm
Angle at the centre (θ) = 282°
Pi (π) = 3.14
Length of arc (L) = ?
L = θ/360 × 2πr
L = 282/360 × 2 × 3.14 × 6.5
L = 282/360 × 40.82
L = 32.0 cm
3. Determination of the length of the arc.
Radius (r) = 11 m
Angle at the centre (θ) = 83°
Pi (π) = 3.14
Length of arc (L) = ?
L = θ/360 × 2πr
L = 83/360 × 2 × 3.14 × 11
L = 83/360 × 69.08
L = 15.9 m