Answer:
47.33
Step-by-step explanation:
Hey there! I'm happy to help!
We have 8 bags of dog food and each costs $25.19
8(25.19)=201.52
And we have 11 leashes each costing $4.65.
11(4.65)=51.15
We add these totals up.
201.52+51.15=252.67
We subtract this from 300 to see how much is left.
300-252.67=47.33
Rhonda had $47.33 left after her purchases.
Have a wonderful day! :D
Answer:
d
Step-by-step explanation:
3) 24 + 8x = 8(5x + 8) + 8x*
If granola costs $2.30 per pound, how much does 0.7 pound of granola cost?
$1.61
$2.37
$3.00
$3.29
Answer:
1.61
Step-by-step explanation:
Answer:
A.
Step-by-step explanation:
In an article about the cost of health care, Money magazine reported that a visit to a hospital emergency room for something as simple as a sore throat has a mean cost of $328 (Money, January 2009). Assume that the cost for this type of hospital emergency room visitis normally distributed with a standard deviation of $92. Answer the following questions about the cost of a hospital emergency room visit for this medical service.Required:a. What is the probability that the cost will be more than $500?b. What is the probability that the cost will be less than $250?c. What is the probability that the cost will be between $300 and $400?d. If the cost to a patient is in the lower 8% of charges for this medical service, what was the cost of this patient’s emergency room visit?
Answer:
Kindly check explanation
Step-by-step explanation:
Given the following :
Assume a normal distribution :
Mean (m) = 328
Standard deviation (sd) = 92
To obtain Zscore :
Zscore = (x - m) / sd
What is the probability that the cost will be more than $500?
x = $500
Zscore = (500 - 328) / 92 = 172 / 92 = 1.869 = 1.87
1 - p(Z < 1.87) = 1 - 0.9693 = 0.0307
b. What is the probability that the cost will be less than $250?
x = $250
Zscore = (250 - 328) / 92 = - 78 / 92 = - 0.8478 = - 0.85
p(Z < - 0.85) = 0.1977
c. What is the probability that the cost will be between $300 and $400?
x = 300
Zscore = (300 - 328) / 92 = - 28/ 92 = -0.30
p(Z < - 0.3) = 0.3821
x = 400
Zscore = (400 - 328) / 92 = 72/ 92 = 0.783
p(Z < 0.783) = 0.7823
0.7823 - 0.3821 = 0.4002
d. If the cost to a patient is in the lower 8% of charges for this medical service, what was the cost of this patient’s emergency room visit?
Probability is lower 8%
P (Z < Zscore) = 0.08
Zscore of 0.08 corresponds to - 1.41 on the z table
Zscore = (x - m) / sd
-1.41 = (x - 328) / 92
-129.72 = x - 328
-129.72 + 328 = x
x = 198.28
Stephen Kiprotich, the 2012 Olympic marathon winner, completed the 26.219 miles in 128 minutes. What was his speed in kilometers per minute? PLS HURRY IM RUNNING OUT OF TIMEEEEE
Answer:
0.127 kilometers per minute
Step-by-step explanation:
if you can divide the number of miles by the number of minutes: 26.219/128 = 0.205 miles per minute. Next, we can use the proper conversion factor to give the number of kilometers per minute. Since 1 mile = 1.609 km, you can divide 0.205/1.609 to result in 0.127 kilometers per minute
Answer:Sample Response: Find the speed by dividing 26.219 by 128. Convert miles to kilometers by multiplying by the conversion factor, with miles in the denominator and kilometers in the numerator.
Step-by-step explanation:Pls give me brainliest award
Which polynomial is prime? x2 + x + 1 x2 – x – 2 x2 – 12x + 11 x2 + 2x – 8
Answer:
[tex]x^{2} +x+1[/tex]
Step-by-step explanation:
[tex]x^{2} +x+1[/tex] is the only prime polynomial because the others can be factored.
[tex]x^{2} - x -2 \\becomes (x-2)(x+1)[/tex]
[tex]x^{2} -12x+11\\becomes (x-11)(x-1)[/tex]
[tex]x^{2} +2x-8\\becomes (x+4)(x-2)[/tex]
In between these four polynomials, x² + x + 1 is the only prime polynomial.
What is a prime polynomial?A prime polynomial doesn't have any factor except 1 and itself.
Given,
x² + x + 1 = 1 × (x² + x + 1)
x² – x – 2 = x² - 2x + x - 2 = x(x - 2) + (x - 2) = (x - 2)(x + 1)
x² – 12x + 11 = x² – 11x - x + 11 = x(x – 11) - (x - 11) = (x - 1)(x - 11)
x² + 2x – 8 = x² + 4x – 2x - 8 = x(x+4) - 2(x+4) = (x-2)(x+4)
Therefore, x² + x + 1 is the only prime polynomial here.
Learn more about prime polynomial here: https://brainly.com/question/15562251
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How would you match these up?
This 3D solid is a strange sideways bowl shape. Each cross section is a ring to show the empty space.
======================================================
Explanation:
Check out the diagram below. The graph was created with GeoGebra. We have y = x^2 in red and x = y^2 in blue.
The gray region is the region between the two curves. We spin this gray region around the horizontal green line y = 1 to generate the answer mentioned above.
Note how (1,1) is a fixed point that does not move as this is on the line y = 1. Every other point moves to sweep through 3D space to create the solid figure. One way you can think of it is to think of propeller blades. Or you can think of a revolving door (the door is "flat" so to speak, but it sweeps out a 3D solid cylinder).
What are some considerations you need to make before choosing a career?
Answer: SMART Goals
Step-by-step explanation:
Smart goals are in abbreviation of specific, measurable, achievable, realistic, and timely. This helped me choose my career because I use my career as a goal .
The cost of one tire if a set of 4 tires cost to $322 The cost of each tire is about $...
On the basis of data provided by a salary survey, the variance in annual salaries for seniors in public accounting firms is approximately 2.3 and the variance in annual salaries for managers in public accounting firms is approximately 11.3. The salary data were provided in thousands of dollars. Assuming that the salary data were based on samples of 25 seniors and 26 managers, test to determine whether there is a significant difference between the variances of salaries for seniors and managers. At a 0.05 level of significance, what is your conclusion? State the null and alternative hypotheses.
Answer:
The null hypothesis is [tex]H_o : \sigma^2_1 = \sigma^2 _2[/tex]
The alternative hypothesis is [tex]H_a : \sigma^2_1 \ne \sigma^2 _2[/tex]
The conclusion is
There is no sufficient evidence to conclude that there is a difference between the variances of salaries for seniors and managers
Step-by-step explanation:
From the question we are told that
The variance for seniors is [tex]s ^2_1 = 2.3[/tex]
The variance for managers is [tex]s ^2_2 = 11.3[/tex]
The first sample size is [tex]n_1 = 25[/tex]
The second sample size is [tex]n_2 = 26[/tex]
The significance level is [tex]\alpha = 0.05[/tex]
The null hypothesis is [tex]H_o : \sigma^2_1 = \sigma^2 _2[/tex]
The alternative hypothesis is [tex]H_a : \sigma^2_1 \ne \sigma^2 _2[/tex]
Generally the test statistics is mathematically represented as
[tex]F = \frac{s_1^2}{s_2^2}[/tex]
=> [tex]F = \frac{2.3}{11.3}[/tex]
=> [tex]F = \frac{2.3}{11.3}[/tex]
=> [tex]F = 0.2035[/tex]
Generally the p-value is obtain for the F-distribution table (Reference - Free statistic calculator ) at a degrees of freedom
[tex]df_1 = 25 - 1[/tex]
[tex]df_1 = 24[/tex]
and [tex]df_2 = 26 - 1[/tex]
[tex]df_2 = 25[/tex]
The p- value is
[tex]p-value = f_{0.2035,24,25} = 0.99989[/tex]
So from the calculation we see that
[tex]p-value > \alpha[/tex]
So we fail to reject the null hypothesis
We invest $3500 in an account that pays simple interest of 4% each year. How much interest is earned after 10 years?
Answer:
$1400
Step-by-step explanation:
Take $3500 and multiply by 4% (0.4) and then get the product of 140 then multiply by 10 for the years and get $1400. Hope this answer helped!
A number increased by five is equal to thirty-four?
Answer:
that would be 29 my friend
Step-by-step explanation:
29 plus 5 is 34
Please help it is due right now 7^8/7^6 =?
Answer:
7^2 or 49
hope this helped
simplify the expression 4+ (11-3)2
Answer:
20
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
First, because of order of operations, PEMDAS, you solve in the parenthesis first:
4+ (11-3)2
4+ (8)2
Then multiplication:
4+ 16
Then addition:
20
Hope this helps!
Plz name brainliest if possible!
A rectangular garden has the dimensions
shown in the figure.
7.48 meters
15.6 meters
What is the perimeter of the garden?
A. 16.24 meters
C. 46.16 meters
B. 23.08 meters
D. 116.688 meters
Need ASAP
You purchase 5 DVDs and a CD. The cost of the CD is $9.50. Your total bill (before tax) is
$44.45. Write and solve an equation to find the cost of one DVD. (You may assume all the
DVDs are the same price.) *
Answer:
$6..99
Step-by-step explanation:
$6.99 each you do 44.45 - 9.50 than divide by 5
An airport parking lot has. 2800 spaces.if each row has 25 spaces.how many rows are there?
An automobile traveled 106 miles in 2 hours. What was average speed? Use the formula d = rt .
104 mph
0.02 mph
53 mph
108 mph
212 mph
The average speed of the automobile is 53mph.
Description of average speedAverage speed is the total distance travelled by the automobile (106 miles) divided by the total hours travelled by the automobile (2 hours). It is the rate of the movement of the automobile.
Determining the average speedAverage speed = total distance travelled / total time travelled
106 / 2 = 53 mph
To learn more about how to determine average speed, please check: brainly.com/question/9834403
A word that means something has been added.
Answer:
Summed?
Step-by-step explanation:
it's the only word i could think of that's math related.
What is the greatest whole number that rounds to 1,900 when rounded to the nearest hundred? The least whole number?
Answer:
When we round to the nearest hundred, we must look at the tens digit.
If the tens digit is 5 or lager, then we round up (we add 1 to the hundreds digit and after that, all the digits are zero.)
If the tens digit is smaller than 5, then we round down (the hundreds digit remains unchanged and after that, we complete with zeros.)
Then, the rounded number is 1900.
a) The greatest whole number that rounds to 1900 would be a number that is rounded down, then it will be:
1949
b) The least whole number that is rounded to 1900 is a number that we round up, this is:
1850
Largest: 1,949
This number is largest because it is closest to 1,900 without the number in the tens place being greater than 5, and the number in the tens place is bigger than 5
Smallest: 1,850
This number is smallest because any smaller number, like 1,849, would round to 1,800, and the number in the tens place is smaller than 5.
Have a good day!
Jake ran 5/7 of the distance around the school tack. Annabelle ran 4/5 of Jake's distance. What fraction of the total distance around the track did Annabelle run?
Answer: 4/7
Step-by-step explanation:
Multiply 5/7 by 4/5. The keyword is "of" which means multiply. Once you multiply them, you will get 20/35. You can simplify this to 4/7.
Find the value of x.
10/6 = x/12
What numbers are more than 3 units from −1 on a number line?
Hey there! I'm happy to help!
There is going to be a number 3 units to the right and 3 units to the left. If we go to the right, we add.
-1+3=2
And if we go to the left, we subtract.
-1-3=-4
So, the numbers that are more than 3 units from -1 on a number line is any number greater than 2 or less than -4.
Have a wonderful day! :D
Slope -2/3, through (-1,-6)
What is the equation of the line?
Answer:
Step-by-step explanation:
y + 6 = -2/3(x + 1)
y + 6= -2/3x - 2/3
y + 18/3 = -2/3x - 2/3
y = -2/3x - 20/3
Determine if the set is the empty set.
1) {XIX E N and 8
Trevor spent $27 and now has no money left. He had $
his purchase.
before
Answer:
Wouldn't it be 27 dollars?
Step-by-step explanation:
PLS HELPPP ITS NOT THAT HARD
Answer:
Step-by-step explanation:
1. System A is consistent and independent and unique solution
2. System B: inconsistent and no solutions
3. System C: consistent and dependent and infinite many solutions
Find the value of x in the equation 5(x+2)-3=10+7(2x-10)
Answer:
Exact form= 67/9 Decimal form= 7.4
Step-by-step explanation:
Answer:
x= 67 /9
Step-by-step explanation:
5(x+2)−3=10+7(2x−10)
x= 67 /9
x= 67 /9
Hoped I helped
HELP: Will Award Brainliest! Simplify 17x - 12 = 114 + 3x
Answer:
x=9
Step-by-step explanation:
17x - 12 = 114 + 3x
First Subtract 3x from both sides
14x - 12 = 114
Add 12 to both sides
14x=126
Divide by GCF (14)
x=9
Hope this helps! Plz award Brainliest : )
Answer:
17x - 12 = 114 + 3x
-3x +12 +12 -3x
Step-by-step explanation:
14x = 126
14/14 = 126/14 = 9
x = 9
(√5x+11 -4)(√5x+11 +4)
Answer:
5[tex]x^{2}[/tex]+49.193496x+105
Step-by-step explanation:
Show all you work plzzz
Answer:
[tex]u=-7[/tex]
Step-by-step explanation:
[tex]-2u-5=9[/tex]
Add 5 to both sides:
[tex]-2u-5+5=9+5[/tex]
[tex]-2u=14[/tex]
Divide both sides by -2:
[tex]\frac{-2u}{-2}=\frac{14}{-2}[/tex]
[tex]u=-7[/tex]