Answer:
71.4 mph
Step-by-step explanation:
357/5
71.4
Answer:
71.40
Step-by-step explanation:
357/5= 71.4 or 71.40 to the nearest hundredth.
A penny is dropped from the top of a new building. Its height in feet can be modeled by the equation y = 256 - 16^{2} , where x is the time in seconds since the penny was dropped. How long does it take for the penny to reach the ground?
I would greatly appreciate help with this word problem, thanks!
≧◠ᴥ◠≦✊
Answer:
4 seconds
Step-by-step explanation:
Given equation:
\(y=256-16x^2\)
where:
y = The height of the penny (in feet).x = The time since the penny was dropped (in seconds).The penny reaches the ground when the height is zero, so when y = 0.
Substitute y = 0 into the given equation and solve for x:
\(\begin{aligned}y&=256-16x^2\\y=0 \implies 0&=256-16x^2\\0+16x^2&=256-16x^2+16x^2\\16x^2&=256\\\dfrac{16x^2}{16}&=\dfrac{256}{16}\\x^2&=16\\\sqrt{x^2}&=\sqrt{16}\\x&=\pm4\end{aligned}\)
As time is positive, x = 4 only.
Therefore, it takes 4 seconds for the penny to reach the ground.
Rewrite in simplest terms:
10(7g-9h)-4h-8(-h+8g)10(7g−9h)−4h−8(−h+8g)
ASAP
An empty container has a capacity of 60000 liters to 1 s.f. Tony pours in 5400 liters of water to 2 s.f. He says he filled more than 10 % of container is he correct ? Show working
Answer:
Tony poured is 9% of the total
Step-by-step explanation:
Given data
The capacity of the container= 60000 liters
Amount of water that tony pours= 5400 liters
Let us compute the percentage to know if it is up to 10%
= 5400/60000*100
=0.09*100
=9%
Hence the amount of water Tony poured is 9% of the total
Answer:
He is wrong
Step-by-step explanation:
60 000 LB=55000
60 000 UB=65000
5400 LB= 5350
5400 UB=5450
65000x0.10=6500
55000x0.10=5500
he is wrong
You recently had a cholesterol panel completed and see that the results for your High Density lipoprotien (HD) level comes back with 2-1.7 among people of your stature. Your doctor is going to review the results with you but based on what you know about 2-scores you can infer: The score is negative so this will be good news. Your HDL level is slightly below average The average person of your stature is 1.7 deviations below you. You have an above average HDL level for people of your stature, Your HDL level is extremely low for a person of your stature,
High-Density Lipoprotein (HDL) level of a person is 2-1.7. This score is used to assess the level of cholesterol in the blood. The HDL score is negative, which means it is good news.
The average person of the same stature is 1.7 deviations below you. It means that you have an above-average HDL level for people of your stature, but your HDL level is still slightly below the average HDL level for a person of your stature. An HDL level that is extremely low is below 40 milligrams per deciliter (mg/dL). An HDL level of 60 mg/dL or higher is considered to be the ideal HDL level.
A negative score means the cholesterol level is below average, and it indicates a reduced risk of developing heart disease ,Hence, we can infer that the person has an above-average HDL level but slightly below the average HDL level for people of the same stature.
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I’m confused please help me with this photo
Answer:
(9,0)
Step-by-step explanation:
Since we know that M is halfway of point A from the origin, to find point M, take half of point A's x-intercept.
(18,0) halfway from the origin would be (9,0).
-(7) to the power of 4
Which expression shows the power correctly written in expanded
notation?
-7 x -7 x -7 x -7
-7 x 7 x 7 x 7
-4 x -4 x -4 x -4 x -4 x -4 x -4
-4 x 4 x 4 x 4 x 4 x 4 x 4
Answer:
the first one is correct
Step-by-step explanation:
this is the same way as writing 7 to the power of four, but all of the sevens are negative in your case
Answer:-7x-7x-7x-7
Step-by-step explanation:
A manufacturer of gun powder has developed a new powder, which was tested in eight shells. The resulting muzzle velocities, in feet per second, were as follows:
3005 2925 2935 2965 2995 3005 2937 2905
The manufacturer claims that the new gunpowder produces an av- erage velocity of not less than 3000 feet per second. Do the sample data provide sufficient evidence to contradict the manufacturer’s claim at the 0.025 level of significance? Assume that muzzle veloc- ities are approximately normally distributed.
To test whether the sample data contradicts the manufacturer's claim regarding the average muzzle velocity of the new gunpowder, we can conduct a hypothesis test. The claim states that the average velocity is not less than 3000 feet per second. By performing the appropriate statistical analysis with the given sample data and significance level of 0.025, we can determine if there is sufficient evidence to reject the manufacturer's claim.
To conduct the hypothesis test, we will set up the null and alternative hypotheses as follows:
Null Hypothesis (H₀): The average muzzle velocity of the new gunpowder is not less than 3000 feet per second.
Alternative Hypothesis (H₁): The average muzzle velocity of the new gunpowder is less than 3000 feet per second.
Next, we will perform a one-sample t-test, assuming that muzzle velocities are approximately normally distributed. With the given sample data, we can calculate the sample mean and sample standard deviation. Using these values, along with the sample size and the significance level of 0.025, we can calculate the t-statistic.
Comparing the t-statistic to the critical value from the t-distribution with the appropriate degrees of freedom, we can determine if the sample data provide sufficient evidence to reject the null hypothesis. If the t-statistic falls in the rejection region, we can conclude that the sample data contradicts the manufacturer's claim at the 0.025 level of significance.
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Solve the inequality and graph the solution.
4x - 5 ≥ 7
Answer:
x=3
Step-by-step explanation:
it would go over the point 3,7 on the graph with a positive slope
The given inequality is solved to obtain as x ≥ 3.
What is linear inequality?Linear inequality refers to the relation between a linear algebraic expression to some known value that contains inequality sign.
Unlike a linear equation it can have a range of values inside an interval.
The given inequality can be solved as follows,
4x - 5 ≥ 7
Subtract 7 from both sides to obtain,
4x - 5 - 7 ≥ 0
=> 4x - 12 ≥ 0
=> 4x ≥ 12
=> x ≥ 3
The graph for the given inequality is shown as below,
Hence, the solution for the given inequality is x ≥ 3.
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Simplify the expression. Write your answer using single variables raised to exponents. d×b×c×a×a×a
There are three a's, we can write a³ instead of a×a×a. This gives us d×b×c×a³
To simplify the expression d×b×c×a×a×a, we can rewrite it using exponents. Since there are three a's, we can write a³ instead of a×a×a. This gives us:
d×b×c×a³
This is the simplified expression using single variables raised to exponents. We can read this as "d times b times c times a to the power of 3".
It's important to note that when we have multiple variables multiplied together, we can simplify the expression by combining them using exponents. This makes it easier to work with and to manipulate algebraic equations.
In this case, we were able to simplify the expression by replacing three instances of a with a³. We could continue to simplify further if we had additional like terms, but in this case, this is the simplest form of the expression.
Overall, simplifying expressions using exponents is a common technique in algebra and can help make solving equations more manageable.
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Im having a really bad day help me pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
John bikes at a speed of 10 miles per hour. His friend Brian is slower, his biking speed is only
8 miles per hour.
c
Today the boys went for a 20 miles trip, each boy was biking at his usual speed. How long did John wait for Brian at the finish line?
Hi there!
\(\large\boxed{0.5 \text{ hours, or } 30 \text{ minutes}}\)
Use the formula d / s = t to solve for the time needed for each:
Distance = 20 miles
(J)
20 m / 10 mph = 2 hours
(B)
20 m / 8 mph = 2.5 hours
Subtract the times to find the amount of time necessary to wait:
2.5 - 2 = 0.5 hours or 30 minutes.
A strain of peas has 3 green and one yellow for every four peas. If 12 peas are rendomly selected, what is the probability that exactly 8 peas are green
The probability that exactly 8 peas are green, from the random selection would be 22. 56 %.
How to find the probability ?This is a binomial probability problem as the probability of an exact likelihood from an event needs to be found.
The relevant formula is:
P ( X = k ) = C ( n , k) x p^ k x q ^( n - k)
Solving for the probability, that exactly 8 peas are green gives:
P ( X = 8 ) = C( 12, 8) x ( 3 / 4 ) ^8 x ( 1 / 4 )^4
P ( X = 8 ) = (12! / ( 8 ! ( 12 - 8 )!) ) x ( 3/4 ) ^8 x ( 1 / 4 ) ^4
P ( X = 8 ) = 0. 2256
P ( X = 8 ) = 22. 56 %
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0.69 x 10 to the 3rd power
Answer:
690
Step-by-step explanation:
0.69 x 10^3=
0.69 x 1000=
690
Answer:
Step-by-step explanation:
0.69*1000= 690
Which is true about the quotient below? -11/10
The truth about the quotient -11/10 is that it is written as an improper fraction, which can also be written as a mixed number.
What is the quotient?The quotient is the result of a division operation.
To determine the quotient, the dividend is divided by the divisor.
The dividend is the number being divided while the divisor is the number dividing.
Division operation is one of the basic mathematical operations. Other mathematical operations are subtraction, addition, and multiplications.
These basic mathematical operations determine mathematical results undertaken by manipulating numbers, constants, and variables using mathematical operands.
What is an improper fraction?An improper fraction is one that whose numerator is greater than the denominator.
Improper fractions can be converted to mixed numbers (whole numbers and proper fractions).
Thus, we can conclude that the quotient -11/10 is written as an improper fraction.
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¿Cual es la medida del diámetro del circulo unitario?
Answer:
2
Step-by-step explanation:
Un círculo unitario es un círculo con un radio de 1
what is seven less than the quotient of 16 and 4
Answer:
-3
Step-by-step explanation:
16/4=4, so seven less than that is -3
PLSSSSSS!!!! HELP ME I WILL MARK YOU!!!!!!! MATH!!!!!!!!!!!!!!
Answer:
-24
Step-by-step explanation:
-1(3^2)+(-15)
-9+(-15)
-24
Answer:
-24
Step-by-step explanation:
if n=-1, p=3, and q=-15, then the equation would be -1(3)^2+(-15)
Follow PEMDAS.
-1(3)^2+(-15)
-1x3^2-15
-1x9-15
-9-15
**-24**
hope this helps! : )
Let $x=\frac{7}{8}$ and $y=-\frac{2}{9}$. If $x\cdot z = y$, then what is $z$?
The value of z is found by dividing y by x, which results in z =\(-\frac{16}{63}$\)
To solve for z, we can use the equation \($x\cdot z = y$\). We know that \($x = \frac{7}{8}$\) and \($y = -\frac{2}{9}$\),
Therefore, we can enter these values into the equation as substitutes:
\($\frac{7}{8} \cdot z = -\frac{2}{9}$\)
Next, In order to separate z, we must divide both sides of the equation by \($\frac{7}{8}$\):
\($z = \frac{-\frac{2}{9}}{\frac{7}{8}}$\)
To divide by\($\frac{7}{8}$\), The fraction can be rotated, then multiplied by its reciprocal, which is \($\frac{8}{7}$\)
\($z = \frac{-\frac{2}{9}}{\frac{7}{8}} \cdot \frac{8}{7}$\)
The fraction on the right can be made simpler as follows:
\($z = -\frac{2}{9} \cdot \frac{8}{7} = -\frac{16}{63}$\)
So, The value of z is found by dividing y by x, which results in z =\(-\frac{16}{63}$\)
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Which equation shows the relationship in the table?
A) y = 15x
B) y = 30x
C) y = x + 15
D) y = 15/x
hiii what’s 2+2=
i’m just so sweet. take your points. ❤️
Answer:
4
Step-by-step explanation: add 2 to your 2
3.1 In the sketch below ABC is not drawn to scale. Construct ABC next to its rough sketch below.
Answer:
the capacity is yours for your life
Answer: the capacity is yours for your life no kidding it’s the right answer
Step-by-step explanation:
The side of a square is 3 cm long.
What is the length of the diagonal of the square? Give a reason for your answer.
INSTRUCTION: Round your answer to two decimal places.
Answer:
approximately 4.23 cm
The print shop charges $1. 10 per square foot for banners of any shape and size. What is the approximate cost of the banner before tax? $41. 95 $46. 14 $83. 90 $92. 30.
The approximate cost of the banner which is charged by print shop before tax is 92.30.
What is cost price per unit?The cost price per unit is the amount of money required to buy one uni of a brand or goods.
To find the cost price per unit, divide the total amount of cost of the goods to the total number of goods.
The length of the sides of parallelogram banner which order by Jace is 9 feet and the length of the bottom side is 12 feet.
The length of the diagonal is 19 ft. The parimeterof the triangle made by this sides is,
\(s=\dfrac{9+12+19}{2}\\s=20\)
Using Heron's formula, the area of this triangle is,
\(A=\sqrt{20(20-9)(20-12)(20-19)}\\A=\sqrt{20\times11\times8\times1}\\A=41.95\rm ft^2\)
Now the area of the banner is,
\(A=41.95\times2\\A=83.90\rm ft^2\)
The print shop charges $1.10 per square foot for banners of any shape and size.Thus, the charge of the banner with area 108 square foot is,
\(P=1.10\times83.90\\P=92.29\\P\cong92.30\)
Thus, the approximate cost of the banner which is charged by print shop before tax is 92.30.
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a p-value a. can be positive or negative. b. is a probability. c. can be smaller than 0 but no larger than 1. d. can be larger than 1 but no smaller than 0. e. can only range in value from -1 to 1.
A p-value is a probability.
A p-value is the probability of obtaining a test statistic as extreme or more extreme.
The observed value, assuming the null hypothesis is true.
It ranges in value from 0 to 1 and represents the strength of evidence against the null hypothesis.
A p-value cannot be negative, as it is a probability and probabilities are always between 0 and 1.
A p-value also cannot be larger than 1, as it represents a probability.
A probability cannot exceed 1.
Finally, a p-value cannot be smaller than 0, as it represents a probability.
A probability cannot be negative.
the correct option is b. is a probability.
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Someone help me please
Answer:
2.
m: -x
b: -2
equation: y = -x -2
brainliest? <3
find the expression for the function f when the differential equation is put into the form y ( n ) = f ( x , y , y ' , y ' ' , ... , y ( n − 1 ) )
F(x, y, y', y",..., y(n-1)) is the expression for the function f.
1. Rewrite the given differential equation as y (n) = f (x, y, y', y",..., y (n 1)).
2. Identify y as the dependent variable, y', y",..., y(n-1), as the derivatives of y up to order n-1. X is the independent variable.
3. The right-hand side of the equation, f(x,y,y',y",...,y(n-1)), provides the expression for the function f.f(x,y,y',y",...,y(n-1)) is the expression for the function f, where x is an independent variable, y is the dependent variable, and y', y",...,y(n-1) are y's derivatives up to order n-1. The right-hand side of the equation provides the expression for the function f when the differential equation is written as y (n) = f (x, y, y', y",..., y (n 1)). Consequently, f is a function of x, y, y', y",..., and y. (n-1). The differential equation is resolved using this expression for f.
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Using a calculator, what is csc(24°)? Round to 2 decimals.
Answer:
2.46
Step-by-step explanation:
csc24° = 2.45859
Find the coordinate point of the hole in the function below
Answer:
(6, 2/7)
Step-by-step explanation:
You want the coordinates of the hole in the graph of (n² -10n +24)/(n² -5n -6).
SimplifySimplifying the given rational expression, we have ...
\(\dfrac{n^2-10n+24}{n^2-5n-6}=\dfrac{(n-6)(n-4)}{(n-6)(n+1)}=\dfrac{n-4}{n+1}\quad n\ne6\)
At n = 6, the simplified expression is ...
(6 -4)/(6 +1) = 2/7
The hole is located at (6, 2/7).
__
Additional comment
Even though the factor (n-6) in the denominator cancels the one in the numerator, the function remains undefined there. Hence the "hole". If there were no corresponding numerator factor at that point, there would be another vertical asymptote at n=6.
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Jeans are on sale with a 65% off. The jeans originally cost $72. What is the sales price?
As the sales price is 65% off you find the 65% of the original cost and then substract it from the original cost:
\(\begin{gathered} 72\cdot0.65=46.8 \\ \\ 72-46.8=25.2 \end{gathered}\)Then, the sales price is $25.2Hey besties I need someone to answer this
Answer:
Its the first one y=x3 - 3
Step-by-step explanation:
Answer:
y = x – 3
Step-by-step explanation:
y = x³ – 3 [cubic function]
y = x² – 3 [square function / quadratic]
y = x – 3 [linear function]
y = √x – 3 [square root function]
whoever answers this question getting a kiss fr
Answer:
ooo me
Step-by-step explanation:
pls