Answer:
50.02
Step-by-step explanation:
9.2x6.1=50.02 square inches
square root of 112
please help me
If 14 g of a radioactive substance are present initially and 7 years later only 7 g remain, how much of the substance will be present after 9
yr?
Answer:
5g
Step-by-step explanation:
14-9=5
The table below gives the stopping distance y (in 100 meters) for a train traveling on a track at various speeds x (miles per hour).
Speed, x (mi/h) 50 55 60 65 70 75 80 85 90
Distance ,y (100m) 20 25 35 50 70 95 125 200 160
Required:
Find an equation of the quadratic function that models the data, and predict the stopping distance for the train traveling at 95 miles per hour.
The required equation is 0.1x²-9.5x+245=0
And, the stopping distance for the train traveling at 95 miles per hour is 245.
What is function?Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable.
Here, given that,
Speed, x (mi/h) 50 55 60 65 70 75 80 85 90
Distance ,y (100m) 20 25 35 50 70 95 125 160 200
Now, let an quadratic equation be, ax²+bx+c=y
Putting the values of x & y we get,
2500a+50b+c=20 ....(1)
3025a+55b+c=25...(2)
3600a+60b+c=35 .....(3)
solving this we get,
a= 0.1
b=-9.5
c=245
Hence, the required equation is 0.1x²-9.5x+245=0
And, the stopping distance for the train traveling at 95 miles per hour is 245.
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The linear functions f(x) and g(x) are represented on the graph, where g(x) is a transformation of f(x):
A graph with two linear functions; f of x passes through 1, 3 and 3, 13, and g of x passes through negative 1, 3 and 1, 13.
Part A: Describe two types of transformations that can be used to transform f(x) to g(x). (2 points)
Part B: Solve for k in each type of transformation. (4 points)
Part C: Write an equation for each type of transformation that can be used to transform f(x) to g(x). (4 points)
Part A:
I only see one thing that you can do. You can use transformation to move f(x) 6 units to the left
Part B:
g(x) = f(x)+1 where k = 1, and g(x) = f (x + 8) where k = 8
Part C:
g(x) = f (x) + 1, and g(x) = f (x + 8)
sorry if I got it wrong
Please help
6x - 3y < 9
Answer:
y>2x−3
Step-by-step explanation:
:)
What is 8.17 round to tenths
Answer:
8.2
Step-by-step explanation:
Enter the opposite and reciprocal of 500
Answer:
-500 and 1/500
Step-by-step explanation:
opposite of a positive is a negative. the fraction for 500 is 500/1 which would be 1/500 as a reciprocal
3) Suppose you have lunch with five friends and the total check (with tax and tips) is $252. How much should each person pay if you split the check evenly.
Answer:
$50.40
Step-by-step explanation:
you just divide it by 5.
Describe and correct the error in finding the perimeter or area of the polygon.
Answer:
Look at explanation.
Step-by-step explanation:
The error is that the length of the polygon is 5 not 4. The perimeter should be 16 units not 14 units.
The perimeter of the given polygon is 16 units.
What is the perimeter?The perimeter of a shape is defined as the total distance around the shape. It is the length of the outline or boundary of any two-dimensional geometric shape. The perimeter of different figures can be equal in measure depending upon the dimensions.
From the given figure, length =5 units and width =3 units.
We know that, the perimeter of a rectangle is perimeter =2(length+width)
P= 2l+2w
= 2(5)+2(3)
= 10+6
= 16 units
Therefore, the perimeter of the polygon is 16 units.
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Help please !!!!!.!!!!
7 is subtracted from the cube of a number
Answer:
(7 + x3)
Step-by-step explanation:
Let x represent the number.
Then the expression will (7 + x3)
Tell which number is prime 19,28,49,63
Answer:
19 is a prime number
Step-by-step explanation:
Answer:
19.
Step-by-step explanation:
The best way to find if a number is prime or not is that you divide that number with 3 and 7 if it is not divisible by either of them then it's a prime. If the one's digit is divisible by 2 it cannot be prime and if the one's digit is 0 or 5 then it is not prime.
Hope this helps!
The population of bluegills (type of fish) has a mean length of 152.09mm and a standard deviation of 19.62mm. What is the probability that a random sample of 25 fish has a mean length of 140mm or shorter
Answer:
0.001035
Step-by-step explanation:
Mean (m) = 152.09 mm
Standard deviation (σ) = 19.62 mm
Sample size (n) = 25
Length being 140mm or shorter (x) : x ≤ 140
Using the Zscore relation :
Zscore = (x - m) / (σ/√n)
Zscore = (140 - 152.09) / (19.62/√25)
Zscore = (140 - 152.09) / (19.62/5)
Zscore = −3.081039
P(Z ≤ −3.08) = 0.001035
What is the value of 3ab+5b-6 when a =1 and b=3
Answer:
The answer to the question provided is 0.
6k - 25 = 7 -2k
what is k?
Answer: K= 16/3=5.333
Step-by-step explanation: Search up tiger algebra for other problems and the answer THEY HELP
giving brainliest to whoever answers correctly!!
Answer:
<CBD=12 degrees
Step-by-step explanation:
What is the slope of the following 2 points
(5,1) and (8,3)
Answer:
2/3
Step-by-step explanation:
use point slope formula: [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]to find the slope.
3-1=2
8-5=3
your slope is 2/3
Answer:
2/3
Step-by-step explanation:
The formula for slope is y2 - y1 over x2 - x1.
If we plug our numbers in we get 3-1=2
and.
8-5= 3
so the answer is 2/3.
Which of the following is a major benefit of working in the health sciences industry? A. The industry is very small, so you can work with the same people for most of your career. B. Most jobs in the industry are very low stress positions. C. All positions within the industry have extremely high salaries D. There is a big variety in job types, locations, and environments to choose from.
Answer:
The answer is D (There is a big variety in job types, locations, and environments to choose from.)
Answer:D because I just got it right
Step-by-step explanation:
Twenty employees have applied for promotions. This year 7 promotions were awarded. If a random sample of 5 applications was selected.
a. What is the probability that at most 2 employees were promoted?
b. What is the probability that no employees were promoted?
c. Find the value of the expected value and the variance of this distribution.
Answer:
a)0.764
b)0.116
c)Expected value =1.75
Variance=1.1375
Step-by-step explanation:
Total Number of employees = 20
Number of promotions awarded = 7
Probability of success p =[tex]\frac{7}{20}[/tex]
Probability of failure q = [tex]1-\frac{7}{20}=\frac{13}{20}[/tex]
We randomly select 5 applications
a) What is the probability that at most 2 employees were promoted?
We will use binomial
[tex]P(X=x)=^nC_r p^r q ^{n-r}\\P(X\leq 2)=P(X=0)+P(X=1)+P(X=2)\\P(X\leq 2)=^{5}C_0 (\frac{7}{20})^0 (\frac{13}{20})^{5-0}+^{5}C_1 (\frac{7}{20})^1 (\frac{13}{20})^{5-1}+^{5}C_2 (\frac{7}{20})^2 (\frac{13}{20})^{5-2}\\P(X\leq 2)=\frac{5!}{0!(5-0)!} (\frac{7}{20})^0 (\frac{13}{20})^{5-0}+\frac{5!}{1!(5-1)!}(\frac{7}{20})^1 (\frac{13}{20})^{5-1}+\frac{5!}{2!(5-2)!} (\frac{7}{20})^2 (\frac{13}{20})^{5-2}\\P(X\leq 2)=0.764[/tex]
b)What is the probability that no employees were promoted?
[tex]P(X=0)=^{5}C_0 (\frac{7}{20})^0 (\frac{13}{20})^{5-0}\\P(X=0)=\frac{5!}{0!(5-0)!} (\frac{7}{20})^0 (\frac{13}{20})^{5-0}\\P(X=0)=0.116[/tex]
c)
[tex]E(X)=np=5 \times (\frac{7}{20})=1.75\\Var(X)=npq=5 \times (\frac{7}{20}) \times \frac{13}{20}=1.1375[/tex]
HELP!!!!
Jeremy is in a growth spurt, and his mother has been measuring his height once a month.
When she first measured, Jeremy was 49.5 inches tall, and every month afterward, his height
has increased by 0.75 inch each month.
Which equation models Jeremy's growth spurt, where n represents his height in inches, and
m represents time in months?
Ah 0.75m
B h - 0.75m + 49.5
Ch = 49.5m
Dh = 49.5m + 0.75
Answer:
B
Step-by-step explanation:
B. h = 0.75m + 49.5, models Jeremy's growth spurt, where h represents his height in inches, and m represents time in months.
What is multiplication?In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
here, we have,
Jeremy was 49.5 inches tall,
and every month afterward, his height has increased by 0.75 inch each month.
The equation models Jeremy's growth spurt, where h represents his height in inches, and m represents time in months is,
h =0.75m + 49.5
Hence, B. h = 0.75m + 49.5, models Jeremy's growth spurt, where h represents his height in inches, and m represents time in months.
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Find the measures of the numbered angles in the figure, shown to the right. Name the theorem that justifies each
answer.
M<1=
M<2=
M<3=
M<4=
Answer:
Step-by-step explanation:
m∠1 + 75° = 180° [Linear pair of angles]
m∠1 = 180° - 75°
= 105°
m∠2 = m∠1 [Opposite angles of a rectangle are equal]
m∠2 = m∠1 = 105°
m∠2 = m∠3 = 105° [Vertically opposite angles]
m∠3 = m∠4 = 105° [Corresponding angles]
Therefore, all four angles measure the same as 105°.
kori spent $46.20 on 12 gallons of gasoline. What was the price per gallon
Answer:
3.85 because you have to divide 46.20 and 12
Step-by-step explanation:
i provided the pic below pls help fast!!
Answer:
50 feet?
Step-by-step explanation:
Answer:
50
Step-by-step explanation:
If you subtract 500-450 you get the answer 50, or if you add 450+50 you get 500.
Hope this helps☺️
HELP ME PLEASE CHOOSING BRAINEST AND IM CRYING AND IM NOT JOKING
Answer:2/3
Step-by-step explanation:
rise over run and the y-intersect is 3
There are
pay periods in a year if you get paid every two weeks.
A. 52
B. 26
C. 12
D. 6
Answer:
B.) 26
Step-by-step explanation:
There are 52 weeks in a year.
If you got paid every week there would be 52 pay periods.
But since its every 2 weeks, you cut 52 by half which leaves you with 26.
John rides his bike 0.23 miles. Angie rides her bike 100 times as far as jon rides. How many miles does angie ride her bike?
Please need help and steps
Answer:
Angie rode 23 miles
Step-by-step explanation:
Given John's distance 0.23, multiply that by the amount or times of distance that angie rides to find the distance she rode.
0.23 × 100
23
Angie rode 23 miles.
Hope this helps!
Have a nice day!
If you find my answer helpful
Pls consider marking my answer as Brainliest! It would mean a lot!
Answer:
23 miles.
Step-by-step explanation:
This is an equation in words so let's start by putting it into numbers.
we know that John rides his bike for .23 miles and Angie rides her bike a whopping 100 TIMES as far. That means we would multiply.
.23 x 100 = 23
So that means Angie rides her bike for 23 miles.
Hope that helps and have a great day!
I NEED HELP ASAP!!!!!! DUE TONIGHT!!!!!! PLEASE ANSWER FULLY WITH WORK
A red ball rolls for 6 meters across a sticky level surface and slows down to a stop. the ball was rolling at 36 meters per second when it began to roll across the sticky surface. find the acceleration, velocity final, the velocity initial, the velocity average, the distance the ball rolled, and the time of the balls roll across the sticky surface
Answer:
Please find the answer in the explanation
Step-by-step explanation:
Given that a red ball rolls for 6 meters across a sticky level surface and slows down to a stop. the ball was rolling at 36 meters per second when it began to roll across the sticky surface. To find the acceleration, let us use third equation of motion
V^2 = U^2 + 2as
As the object is moving to stop, V = 0
0 = U^2 - 2as
36^2 = 2 × a × 6
1296 = 12a
a = 1296 / 12
a = 108 m/s
The velocity final = 0
The velocity initial = 36 m/s
the velocity average = (36 + 0)/2
Average velocity = 36/2 = 18m/s
the distance the ball rolled = 6m
and the time of the balls roll across the sticky surface will be achieved by using first equation of motion
V = U + at
V = 0
0 = 36 - 108t
108t = 36
t = 36 / 108
t = 0.3 seconds
39w9 - 16x9
HURRY UPPP PLEASEEE
Answer:
=39w9−16x9
Step-by-step explanation:
After 4 minutes of reading, Aaron was on page 14 of his book. After 8 minutes he was on page 20. Which equation models the page number, y, in terms of minutes x?
Group of answer choices
y = −1.5x + 8
y = 8x + 1.5
y = –8x + 1.5
y = 1.5x + 8
When a variable expression equals the exact same variable expression, what does that tell us about the solution(s)?
There is no solution.
There are 2 solutions.
There are infinitely many solutions.
There is one solution.
