Answer:
23,039
Step-by-step explanation:
13,000×1.045¹³ ≅ 23,039
A study suggested that childrenbetween the ages of 6 and 11 in the US have anaverage weightof 74 lbs. with a standard deviation of 2.7 lbs.If we assumethe weights are normally distributed, what proportion of childrenin this age range between 70 lbs. and 85 lbs.
Answer:
The proportion of children in this age range between 70 lbs and 85 lbs is of 0.9306.
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
A study suggested that children between the ages of 6 and 11 in the US have an average weightof 74 lbs, with a standard deviation of 2.7 lbs.
This means that [tex]\mu = 74, \sigma = 2.7[/tex]
What proportion of childrenin this age range between 70 lbs and 85 lbs.
This is the pvalue of Z when X = 85 subtracted by the pvalue of Z when X = 70. So
X = 85
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{85 - 74}{2.7}[/tex]
[tex]Z = 4.07[/tex]
[tex]Z = 4.07[/tex] has a pvalue of 1
X = 70
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{70 - 74}{2.7}[/tex]
[tex]Z = -1.48[/tex]
[tex]Z = -1.48[/tex] has a pvalue of 0.0694
1 - 0.0694 = 0.9306
The proportion of children in this age range between 70 lbs and 85 lbs is of 0.9306.
Anton bought a picnic cooler. His total bill, with tax, was $7.95. He paid 6 percent sales tax. How much did he pay for the cooler alone without the tax?
Answer:
7.48
Step-by-step explanation:
find what 6% of 7.95 is and then subtrct that from 7.95 which gives u ur answer
Find the area of the triangle.
Area=
(Simplify your answer)
Answer:
38.9?? or 40??
Step-by-step explanation:
you put the base and the height together then multiply it by 2
Please help me with this. I give brainliest and give ratings. Don't answer just to take my points or your getting reported.
Explain your answer !!
Have a great day
Will give brainlst
Answer:
Im having a good day!
Step-by-step explanation:
Sadly, my man got punched in the face by his brother, but getting my hair cut later today
There are five marbles in
a bag. Three are green and
two are yellow You draw a
marble replace it, and then
crow another. What is the
product of choosing two
yelow marbles
Answer:
Step-by-step explanation:
2 to 5 or 2:5
or
2 to 3 or 2:3
What is the area of a perimeter with 12 cm?
Answer:
shape name is it square or rectangle is needed to be told
Step-by-step explanation:
if it's square then area is 9cm^2
A placekicker for a football team makes field goals 55% of the time when kicking from the 35-yard line. Assume
that field goal attempts can be considered random events. Using the table, what is the probability that the
placekicker will make at least 3 of his next 5 attempts from the 35-yard line?
1
3
4
5
Field Goal
Probability
0
0.02
2
0.27
0.11
0.34
0.21
?
0.34
0.26
O 0.60
O 0.74
Mark this and return
Save and Exit
Next
Submit
that’s
Answer:
.34
Step-by-step explanation:
By using the table you would look at 3 (what the question wants which would be the x-value) and the y-value would be the answer.
Or you can use this calculator https://stattrek.com/online-calculator/binomial.aspx
and put in 55% for the success
5 for the amount of trials
and 3 for the success of the trials
calculated and you get .336 or rounded .34
Click and drag like terms onto each other to simplify fully. 7-3+3+2x+4y
Answer:
2x+4y+7
Step-by-step explanation:
1/2 of _______ = 62
AnSwEr PlS
Answer:
124
Step-by-step explanation:
You can find this answer by simply multiplying 62 by 2. lol
Solution to the systems of equations,
g(x)=3x+2
f(x)=|x-1|+1
Hi there! :)
[tex]\large\boxed{\text{ x = 0, or (0, 2)}}[/tex]
The solution of g(x) = 3x + 2 and f(x) = |x - 1| + 1 is where the two lines intersect.
According to the graph, the functions intersect at the point (0, 2), or x = 0. This is the solution to the system of equations.
We could also prove this algebraically by setting the two equations equal to each other:
3x + 2 = | x - 1 | + 1
Assume the absolute value function is negative:
3x + 2 = -(x - 1) + 1
Simplify:
3x + 2 = -x + 2
Add x to both sides:
4x + 2 = 2
Subtract 2 from both sides:
4x = 0
x = 0. This is the solution to the system.
PLS HELP GIVING BRAINLESS TO CORRECT PERSON PLS HELP ASAP
Answer:
Correct Answer - It shows the unit rate of the graph in miles per hour.
Step-by-step explanation:
hope this helps
$924 at 10.4% for 30 months
$99.99, 19% discount
Answer:
$80.99
Step-by-step explanation:
Turn the percentage into a decimal.
19% -> 0.19
Multiply.
99.99 * 0.19 ≈ 19
Subtract.
99.99 - 19 = 80.99
Best of Luck!
7. Original price: $32
Discount: ?
Sale price: $8
Answer:
The discount is $24 but if its percentage it is 75% off
Step-by-step explanation:
hope this helps
At a football game, 35% of people attending were supporting the home team, while 65% were supporting the visiting team. If 455 people attending the game supported the home team, what was the total number of people attending the game? Help me plz:))
Answer:
1300
Step-by-step explanation:
Gary has to travel for work. He spent $128 on gas for his car last week.That is only 80% of what he usually spends per week.Hiw much does Gary spend on gas per week?
Answer: 48
Step-by-step explanation: all you have to do is subtract $128 by 80% that will equal 48
Your welcome!
i need help solving h=-5-(-7)
Answer:2
just make them into positive if there’s 2 negatives 7-5=2
Suppose a force of 100 newtons is used to push an object a distance of 5.0 meters in 15 seconds. Find the work done and the power for this situation.
work=force* distance
=100*5
=500 joules
=500/15
=33.33 Watts.
Step 1 -3(3x+5)-6<6
Step 2. -3(3x+5)<12
Step 3. -9x-15<12
Step 4. -9<27
Step 5. x<-3
Between which two consecutive steps did mike make a mistake
(I understand where the mistake is but I don't know how it wants me to answer the question)
A family-size pizza is $32 and costs 4 times as much as a small pizza. Steve buys two family-size pizzas and 4 small pizzas. How much does he spend in all?
A. $64
B. $86
C. $80
D. $96
at what points is the function y= cosx/4x continuous
Question
Find the area of the shaded region of the figure shown below. Use 3.14 for n and round your answer to the nearest tenth
L-15
W-9
A number squared minus fifteen times the number is equal to 16. Write the equation and give the factors.
[tex]\huge{\mathfrak{\purple{Answer}}}[/tex]
Equation: x² - 15x = 16
Factors: x = -16 and x = 1
[tex]\huge{\mathfrak{\purple{Explanation}}}[/tex]
Given
A number squared minus fifteen times the number is equal to 16.
Equation: x² - 15x = 16
Factors:
x² - 15x - 16 = 0
So,
(x - 16) (x + 1)
=> x - 16 = 0, x + 1 = 0
= x = -16 and x = 1
#HopeItHelps
If the perimeter of this trlangle is 15 centimeters, what is the value of n? 5n - 6 2n + 1 Express your answer as a decimal number. n =
Answer:
n =1.78
Step-by-step explanation:
2(5n-6)
2(n+1)
10n-12+4n+2=15
14n-10=15
subtract both sides by 10
14n=25
25/14
n=n =1.78571428571
Jeffrey needs $200 to buy a new iPod. Right now, he has $75. What percent of the $200 does he have?
PLEASE HELPPP
Answer:
40%
Step-by-step explanation:
Answer:
If you need help on further questions like this, divide what he has to what he needs or his goal
in order to get 37.5% you have to divide 75/ 200
You will get 0.357 and that is 37.5% this is ABOUT 40% but I reccomend putting 37.5% to be safe.
What is the area of the shaded region?
Answer:
66ft^2
Step-by-step explanation:
Enter an equation for the word sentence. Use the variable n.
The sum of a number and 4.4 is 8.1.
Answer:
[tex]n + 4.4 = 8.1[/tex]
Step-by-step explanation:
We know we have to write an algebraic equation for the sentence - so "translate" the phrases of the sentence step-by-step. Let the unknown number be represented by the variable n, as the question states.
Start with the phrase "the sum of a number and 4.4." A sum comes as a result of adding numbers together - therefore the first part of the equation must be [tex]n + 4.4[/tex].
Next, the sentence says "is 8.1." The "is" indicates that the expression we just wrote equals something, so that number must be 8.1. Therefore, the whole equation must be [tex]n + 4.4 = 8.1[/tex].
Which value is an input of the function?
-14
-2
0
4
Answer:
4
Only answer on the x-axis
Answer:
It's 4.
Step-by-step explanation:
Did the test on edge2021
help PLZZ FAST
4 The side lengths of a square are each 5p. By adding 1 to the length and subtracting 1 from the width, a rectangle is made. What is the area of the rectangle?
4p2-2
0 25p2 + 1
25p2 - 10p - 1
25p - 1
its 25p^2-1
Step-by-step explanation:
the two sides are (5p+1) and (5p-1) so just multiply them
