Answer:
to torture people
Step-by-step explanation:
but real anwser is to help children learn more about their ecosystem and to give more knowledge and learn new things
5. That cool CD you have been waiting to purchase has finally gone on sale over at Wal-Mart for 25% off the original price. You borrow your room-mates employee discount card and head on over to your local Wal-Mart. It turns out the employee discount entitles you to an additional 15% off the sale price of the CD. If the original price was $32.99, what was the total final price you paid for your cool new CD including the 7.5% sales tax
Answer: $22.61
Step-by-step explanation: A 25% discount means that instead of paying the full value, you will pay 25% less. So the total price you will pay for a CD of $32.99:
P₁ = 32.99 * (1 - 0.25)
P₁ = 32.99 * (0.75)
P₁ = 24.7425
However, you still have a discount of 15% over the price, so:
P₂ = 24.7425 * (1 - 0.15)
P₂ = 24.7425 * (0.85)
P₂ = 21.03
The sales tax is a value incorporated over the price after all the discounts:
P = 21.03 * (1 + 0.075)
P = 21.03 * (1.075)
P = 22.61
The total final price for the CD is $22.61.
Help! I’m suppose to distribute and simplify.
-1(45p+22)-(4(9p)+11)
= −1(45p + 22) + −1(4(9p) + 11)
= −1(45p + 22) + −1(4(9p)) + (−1)(11)
= −1(45p + 22) + −36p + −11
Distribute= (−1)(45p) + (−1)(22) + −36p + −11
= −45p + −22 + −36p + −11
Combine Like Terms= −45p + −22 + −36p + −11
= (−45p + −36p) + (−22 + −11)
= −81p + −33
Adding A Negative Is The Same Thing As Subtracting So Our Answer Is:-81p - 33
- Pacific Northwest
A publisher reports that 52% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is actually different from the reported percentage. A random sample of 180 found that 46% of the readers owned a laptop. Find the value of the test statistic. Round your answer to two decimal places.
Answer:
The value of the test statistic is [tex]t = -1.61[/tex]
Step-by-step explanation:
Central Limit Theorem
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]
Our test statistic is:
[tex]t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the expected mean, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.
A publisher reports that 52% of their readers own a laptop.
This means that [tex]\mu = 0.52[/tex]
Sample of 180:
Means that [tex]n = 180[/tex]
By the Central Limit Theorem:
[tex]\frac{\sigma}{\sqrt{n}} = s = \sqrt{\frac{0.52*0.48}{180}} = 0.0372[/tex]
A random sample of 180 found that 46% of the readers owned a laptop.
This means that [tex]X = 0.46[/tex]
Find the value of the test statistic.
[tex]t = \frac{X - \mu}{s}[/tex]
[tex]t = \frac{0.46 - 0.52}{0.0372}[/tex]
[tex]t = -1.61[/tex]
The value of the test statistic is [tex]t = -1.61[/tex]
Would anyone like to help
Answer:
vertex= (0,-4), Axis of symmetry - x= 0,
sorry I don't know the rest and I don't know if this is even know if this is correct, so good luck I hope someone else can.
Step-by-step explanation:
A skin-care company had 1,500 people try a new acne cream. Nine people had a mild allergic reaction. The formula is then improved and those 1,500 people try the new cream. Only 4 of them had a mild allergic reaction. What is the percent decrease in number of allergic reactions?
Answer:
The decrease in number of allergic reactions is of 0.3333%.
Step-by-step explanation:
Initial percentage:
Nine out of 1500, so the percentage is:
[tex]\frac{9*100}{1500} = \frac{900}{1500} = 0.6[/tex]
Initially: 0.6% of allergic reactions.
Final percentage:
Four out of 1500, so the percentage is:
[tex]\frac{4*100}{1500} = \frac{400}{1500} = 0.2667[/tex]
WIth the improved formula: 0.2667% of allergic reactions.
What is the percent decrease in number of allergic reactions?
0.6% - 0.2667% = 0.3333%
The decrease in number of allergic reactions is of 0.3333%.
HELPPPPP!:(
In order to ride a roller coaster, a rider must be greater than 48 inches tall. Right now, Jeff is 45 inches tall. Write an inequality that describes how many more inches Jeff must grow in order to ride the roller coaster.
Answer:
x is greater than or equal to 3 inches.
Step-by-step explanation:
The required inequality that models the situation of age to grow is given as x ≥ 3.
What is inequality?Inequality can be defined as the relation of the equation containing the symbol of ( ≤, ≥, <, >) instead of the equal sign in an equation.
Here,
Let the age to be grow be x,
According to the question,
45 + x ≥ 48
Simplifying the above expression,
x ≥ 3
Thus, the required inequality that models the situation of age to grow is given as x ≥ 3.
Learn more about inequality here:
brainly.com/question/14098842
#SPJ2
Subtracting Two Vectors not at the Origin
Vector på has an initial point at (3, 3) and its terminal point is at (5, 7).
Vector Rs has an initial point at (4, -6) and its terminal point is at (1.-5).
What is the component form of vector PO - R$?
Answer:
5, 3
Step-by-step explanation:
are these correct? i hate how the teacher had me do this.but picture above.
Answer:
Yes they are correct
Step-by-step explanation:
What is the slope of the line that passes through the points (6, 9) and (11, 2)? *
A.7/5
B.-5/7
C.-7/5
D.5/7
PLsss I need to do this by todayy pls asap
Answer:
C
Step-by-step explanation:
I need help on this plz
Answer:
None
Step-by-step explanation:
Simplify y ^2 over 6y^5.
Answer:
1/6y^3
Step-by-step explanation:
Answer:
1/6y^3
Step-by-step explanation:
cancel the common factor of y^2 and y^5
About 21 out of 25 Texans live in An urban area
Answer:
I'm confused. Is there more to the question?
ABCD is a square. If m<ACB = (11x-32)°, find the value of x.
Answer:
x = 7Step-by-step explanation:
Find the image attached
Since ABCD is a square, <ACB = 45 degrees
Given <ACB = 11x-32
Equate both
11x-32 = 45
11x = 45+32
11x = 77
x = 77/11
x = 7
Hence the value of x is 7
4 (negative one-half x + 7) + 5 x = 15
Step
Simplified Expression
1
-Negative 2 x + 28 + 5 x = 15
2
3 x + 28 = 15
3
3 x = 15
4
x = 5
Sammy tried to verify the solution by substituting x = 5 back into the original equation. It did not result in a true statement. Which explains why Henry’s solution is incorrect?
Step 1 is wrong because the distributive property of equality was used incorrectly.
Step 2 is wrong because the addition property of equality was used incorrectly.
Step 3 is wrong because the subtraction property of equality was used incorrectly.
Step 4 is wrong because the division property was used incorrectly.
Answer:
Step 3 is incorrect
Step-by-step explanation:
4(-1/2x + 7) + 5x = 15
-2x + 28 + 5x = 15
3x + 28 = 15
3x + 28 - 28 = 15 - 28
3x = -13
what is the remainder when 849,400 is divided by 216
Answer:
The remainder is 88
Step-by-step explanation:
The Remainder of a Division
We have to find the remainder when we divide 849,400 by 216.
It could be found by doing the long division, but we'll do it with a calculator.
Entering the division in the calculator we get:
849,400/216=3,932.4074...
We take the whole part of the quotient (3,932) and multiply it by the divisor:
3,932*216=849,312
The remainder is obtained by subtracting 849,400-849,312=88
The remainder is 88
what is 60% of 80 ??
Answer:
48
because I know........
Answer:
48
Step-by-step explanation:
60 divided by 100, then times 80 equals to 48
¾+(⅓÷⅙)-(-½)=( ) need help with this question
Answer:
3.25 or 3 1/4
Step-by-step explanation:
Remove the parentheses first: 3/4 + (1/3 / 1/6) - (-1/2)
1/3 / 1/6 turns into 1/3 * 6
Reduce the numbers:
3/4 + (1/3 * 6) + 1/2
cross multiplication, 6 divided by 3 = 2.
So the new equation is 3/4 + 2 + 1/2
Then you calculate.
3/4 + 2 + 1/2 = 13/4
13/4 reduced is 3 1/4 or 3.25
please help meeeeeeeeeeeee
Answer:
Step-by-step explanation:
area of the kite,
A=(d1*d2)/2
A=(16*21)/2= 168 in^2
choice C
1. A=6b
2. A=12b
3. A=(6b)/2
4. A=(6+b)/2
Answer:
3. A=(6b)/2
Step-by-step explanation:
Let f represent any number in the set of even integers greater than 4. Which
inequality is true for all values of f? *
Answer:
The inequality f ≥ 4n +2 is true for all values of 'f'
Step-by-step explanation:
Explanation:-
Let 'f' represents any number
The set of even integers greater than '4'
f = { 6, 8, 10,12, 14 ,.............}
we have to write the inequality equation
f ≥ 4n +2
Final answer:-
The inequality f ≥ 4n +2 is true for all values of 'f'
8. The equation of a line is y = 2x = 3. Write the equation of a line
parallel to this line.
Answer:
(3/2,3)
Step-by-step explanation:
1.Rewrite the equation
y=3 2x=3
2.Solve the equation
y=3 x=3/2
(x,y)=(3/2,3)
help plsss, i need it asap!!!!! thankss
9/12 = 3/D O D = 6 O D = 4 O D = 5 O D - 10
Answer:
The answer would be D = 4 or option 2.
Step-by-step explanation:
9/12 = 3/?
First, you want to simplify 9/12
9/12 = 3/4
This shows you that D = 4
Find the missing length indicated. Leave your answer in simplest radical form.
Please help! Thank you!
Answer:
1). x = 81
2). x = 84
Step-by-step explanation:
1). By applying geometric mean theorem in the given triangle,
[tex]\frac{x}{18\sqrt{14}}= \frac{18\sqrt{14}}{56}[/tex]
56x = (18√14)²
56x = 4536
x = [tex]\frac{4536}{56}[/tex]
x = 81
2). By applying geometric mean theorem,
[tex]\frac{x}{8\sqrt{21}}= \frac{8\sqrt{21} }{16}[/tex]
16x = (8√21)²
16x = 1344
x = [tex]\frac{1344}{16}[/tex]
x = 84
Answer fast...Show work on both
Answer:
A) 14.3606 ft
B) 2.8112 seconds
Step-by-step explanation:
A) At maximum height which is its peak, the velocity will be zero.
Now, we are given height modeled by;
h(t) = 4.98t² - 14t + 20
v(t) = dh/dt = 9.96t - 14.
At max height which is v(t) = 0, we have;
9.96t - 14 = 0
9.96t = 14
t = 14/9.96
t = 1.4056 s
Thus, height at this time is;
h(1.4056) = 4.98(1.4056)² - 14(1.4056) + 20
h(1.4056) = 14.3606 ft
B) time of flight = 2 × time to get to peak = 2 × 1.4056 = 2.8112 seconds.
Type of triangle the has side measures of 6cm, 7cm and 12cm. And one angle with a measure of 120 degrees
Answer:
Obtuse triangle
Step-by-step explanation:
Given
Sides: 6cm, 7cm and 12cm
Angle: 120 degree
Required
Determine the type of triangle
Because the measure of an angle of the triangle was mentioned, we have to classify the triangle by its angle.
From the question, we understand that one of the angles is greater than 90 (i.e. 120 degrees). This type of triangle are referred to as obtuse triangles.
Peyton and her children went into a restaurant and where they sell drinks for $3 each
and tacos for $4 each. Peyton has $40 to spend and must buy at least 10 drinks and
tacos altogether. If Peyton decided to buy 4 drinks, determine all possible values for
the number of tacos that she could buy. Your answer should be a comma separated
list of values. If there are no possible solutions, submit an empty answer.
Answer:
7,6
Step-by-step explanation:
So in total Peyton must buy 10 items. Since she's already buying 4 drinks. We need to find the amount of tacos the max amount of tacos she can buy are 7 tacos and the minimum is 6 because if we bought less than 6 it wouldn't have met the criteria for 10 items minimum. And if we passed 7 tacos it would go past the limit of how much money Peyton has. I hope this helped:)
the jet stream is a wind current that flows across the US from west to east. Flying with the jet stream, an airplane flew 2700 miles in 4.5 hours. Against the same wind, the return trip took 6 hours. Find the speed of the plane in stil air and the speed of the jet stream.
Answer:
The speed of the plane in still air and the speed of the jet stream are 525 miles per hour and 75 miles per hour.
Step-by-step explanation:
From Mechanical Physics, we know that absolute velocity of the airplane ([tex]v_{A}[/tex]) is equal to sum of the absolute velocity of the jet steam [tex](v_{J})[/tex] and the relative velocity of the airplane with respect to jet stream (velocity of the airplane in still air) ([tex]v_{A/J}[/tex]). Al velocities are measured in miles per hour. Let suppose that both jet stream and airplanes travels at constant velocity. Now, we construct the following system of linear equations:
Flight with the jet stream
[tex]v_{J}+v_{A/J} = \frac{2700\,mi}{4.5\,h}[/tex]
[tex]v_{J}+v_{A/J} = 600\,\frac{mi}{h}[/tex] (1)
Flight against the jet stream
[tex]v_{J} -v_{A/J} = -\frac{2700\,mi}{6\,h}[/tex]
[tex]v_{J}-v_{A/J} = -450\,\frac{mi}{h}[/tex] (2)
The solution of this system of linear equations is:
[tex]v_{J} = 75\,\frac{mi}{h}[/tex], [tex]v_{A/J} = 525\,\frac{mi}{h}[/tex]
The speed of the plane in still air and the speed of the jet stream are 525 miles per hour and 75 miles per hour.
If Jk _| lm which statement is true?
what is 10+1 please I need helpppppppppppppppppppppp
Answer:
11
Step-by-step explanation:
Answer:11
Step-by-step explanation: 10 plus 1 equal 11.