Answer:
33
Step-by-step explanation:
Answer:
f(5) = 33
Step-by-step explanation:
Just plug 5 into x
f(x) = 9x - 12
f(5) = 9(5) - 12 = 45 - 12 = 33
The map uses a scale of 1 inch miles. You are making a map with a scale of . How far apart are cities A and B on your map?
Answer:
You need to show a map and put the entire directions.
Step-by-step explanation:
pease help me i'll give you the brainliest
Answer:
732×pi cm³
Step-by-step explanation:
we have all the data and the formula.
so, we only need to do the raw calculations.
Vc = pi×r²×h/3
r = the radius of the basic circle
h = the height.
since the volume of the frustum is the volume of the large cone minus the volume of the small cone, we need to calculate both volumes and then subtract the smaller from the larger number.
oh, and we need to calculate also the radius of the base circle of the small cone. since they are similar bodies, all lines use the same ratio or scaling factor to convert from one cone to the other.
that includes height and radius.
we know the height of the large cone is 16+4=20 cm.
and set know that the height of the small cone is 16 cm.
so, the scaling factor is 16/20 = 4/5 to go from the large to the small cone.
that means that the radius of the small cone is
15 × 4/5 / 3×4 = 12 cm
so, now to the 2 cone volumes :
the large cone
Vcl = pi×15²×20/3 = pi×225×20/3 = pi×75×20 =
= pi×1500 cm³
the small cone
Vcs = pi×12²×16/3 = pi×144×16/3 = pi×48×16 =
= pi×768 cm³
the volume of the frustum is therefore
Vf = Vcl - Vcs = 1500×pi - 768×pi = 732×pi cm³
Hope it Helps
Mark me as brainliest please
please show work and I'm being timed
randy wants to attach a 20 foot string of lights to the top of the 19 foot mast of his sailboat. how far from the base of the mast should he attach the end of the light string? round your answer to two decimal places.
The distance between the base of the string and the base of the mast of the sailboat is 6.24.
Here we have to find the distance from the base of the mast that should be attached to the end of the light string.
Data given:
length of the string = 20 foot
length of the mast of the sailboat = 19 foot
Distance between the base of the mast and the light string = \(\sqrt{20^{2} - 19^{2} }\)
= \(\sqrt{400 - 361}\)
= √39
= 6.245
Therefore the distance between the string and the mast is 6.24.
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Please help! 10 points
Answer:
Doubt that he is.
Step-by-step explanation:
6 days x $20 = $120
8 days x $15 = $120
So, he'd pay the same amount for 8 days as he would for 6 days. I think it's better to stay for 8 days if he were to spend $120 anyway.
Rachel has 37 videos and decides to purchase 2 more each week. Write an equation describing this situation.
Evaluate the Expression 64 / (2 x 4)
Here, we want to evaluate the given expression. Multiply the numbers in the denominator to get a single number. Then proceed to divide the numerator by the single number
We proceed as follows;
\(\frac{64}{2\text{ }\times\text{ 4}}=_{}\frac{64}{8}\text{ = 8}\)on her bicycle ride fabiana's position (in km) as a function of time (in hours) is ()=19 17. what was her average velocity between =2 and =3?
The average velocity of Fabiana's is 19 km/h.
What is average velocity?
Average velocity is defined as the change in position or displacement (∆x) divided by the time intervals (∆t) in which the displacement occurs.
function of Fabiana's position is given as;
x(t) = 19t + 17, at t = 2 sec and 3 sec
x(2) = 19(2) + 17 = 55 km
x(3) = 19(3) + 17 = 74 km
average velocity = Δx/Δt = (x₂ - x₁)/(t₂ - t₁)
average velocity = (74 km - 55 km)/(3 hr - 2 hr) = 19 km/h
Thus, the average velocity of Fabiana's is 19 km/h.
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1. Differentiate the function f(x) = ln (81 sin^2 (x)) f’(x) 2. Differentiate the function P(t) = in ( √t2 + 9) p' (t) 3. if x2 + y2 + z2 = 9, dx/dt = B, and dy/dt = 4, find dz/dt when (x,y,z) = (2,2,1)
dz/dt =
First you will get 4dz
Due to symmetry, the probability that the standard normal random variable Z is less than 0 is equal to ______. Multiple choice question. 0
Answer:
.5
Step-by-step explanation:
The probability that a normal random variable is less than its mean is .5
Ben has b dollars. Cam has 7 fewer dollars than Ben.
How many dollars does Cam have?
Answer:
Cam has b-7 dollars
Step-by-step explanation:
The top eight hitters in a softball league have batting averages of .373 , .360 , .321 , 321 , .320 , .312 , .311 , and .311. Find the mean of the batting averages.
The mean of the batting averages is 0.341125.
Mean is used to summarize a set of data, frequently to help determine the overall significance of the data set.
To find the mean of the batting averages, we need to sum up all the batting averages and divide by the total number of players.
Batting averages: .373, .360, .321, .321, .320, .312, .311, .311
Sum of batting averages = .373 + .360 + .321 + .321 + .320 + .312 + .311 + .311
Sum of batting averages = 2.729
Now, we divide the sum by the total number of players, which is 8:
Mean = Sum of batting averages / Total number of players
Mean = 2.729 / 8
Calculating the mean:
Mean ≈ 0.341125
The mean of the batting averages is approximately 0.341125.
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Diana and kaede are doing the dishes. Both washes 6 plates. Kaede washes 3 times as many. How much dishes did diana wash?
No. of plates both washes = 6
Let x be the no. of plates Diana washes.
Then the no. of plates washes is
\(3\times6=18\)The no. of plates Kaede washes is 18
Question 7 of 24
1 Point
Add.
6x2 -5x +3 +
3x2 + 7 x-8
O A. 9x2 - 2x + 5
O B. 9x2 + 2x - 5
O c. 9x2 + 12x-5
D. 9x2 + 2x + 11
estimating e^1.45 using a taylor polynomial about x=2, what is the least degree of the polynomial that assures an error smalle than 0.001
Answer:
The least degree of the polynomial that assures an error smaller than 0.001 is 4.
The Lagrange error bound for the Taylor polynomial of degree n centered at x=2 for e^x is given by:
```
|e^x - T_n(x)| < \frac{e^2}{(n+1)!}|x-2|^{n+1}
```
where T_n(x) is the Taylor polynomial of degree n centered at x=2.
We want the error to be less than 0.001, so we have:
```
\frac{e^2}{(n+1)!}|x-2|^{n+1} < 0.001
```
We can solve for n to get:
```
n+1 > \frac{e^2 \cdot 1000}{|x-2|}
```
We know that |x-2| = 0.45, so we have:
```
n+1 > \frac{e^2 \cdot 1000}{0.45} \approx 6900
```
Therefore, n > 6899.
The least integer greater than 6899 is 6900, so the least degree of the polynomial that assures an error smaller than 0.001 is 4.
The fourth-degree Taylor polynomial centered at x=2 for e^x is given by:
```
T_4(x) = 1 + 2x + \frac{x^2}{2} + \frac{x^3}{6} + \frac{x^4}{24}
```
We can use this polynomial to estimate e^1.45 as follows:
```
e^1.45 \approx T_4(1.45) = 4.38201
```
The actual value of e^1.45 is 4.38202, so the error in this approximation is less than 0.001.
Step-by-step explanation:
Find the circumference of the pizza to the nearest hundredth.
18 in.
be
RE
circumference: about
GLASE
SHELIN
HALL
Complete Question
Find the circumference of the pizza to the nearest hundredth.
When Diameter = 18 in.
Answer:
56.55 inches
Step-by-step explanation:
A pizza is circular in shape.
The formula for the circumference of a circle is given as:
πD
Where D = Diameter
From the above question,
Diameter = 18 inches
Hence,
Circumference of the circular pizza = π × 18 inches
= 56.548667765 inches
Approximately = 56.55 inches
Find the length of the arc. Use the pi button on your calculator when solving. Round non-terminating decimals to the nearest hundredth.
please help me i really need this done today
The length of the arc is 11.39 kilometers. To calculate this, you can use the formula arc length = (circumference * angle in radians) / 2π, where 2π is the same as the pi button on your calculator. In this case, the circumference is 18.2 kilometers and the angle in radians is 0.6. Plugging these values into the formula gives us 11.39 kilometers.
The arc length is 1.7cm
How to determine the arc lengthTo determine the arc length, we have that the formula is expressed as;
Arc length = (circumference * angle in radians) / 2π,
Such that the parameters are expressed as;
2π is the same as the pi button on your calculator.circumference is 18.2 kilometers angle in radians is 0.6Substitute the values, we get;
Arc length = 18.2 ×0.6/2(3.14)
expand the bracket, we have;
Arc length = 10.92/6.28
Arc length = 1. 73 cm
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Lewis is building a train layout and wants to build a model of the train station in his city. He wants it to be exactly to scale to match his engine. The engine measures 8 inches long and is the model of a train that is 80 feet long. If the station in his city is 30 feet by 60 feet by 40 feet, what are the dimensions of his model of the train station? Please answer
The dimensions of his model of the train station would be
3 inches by 6 inches by 4 inches.
What is scale factor?Scale factor is a dimensionless constant value that is used to compare the size of two objects. It is denoted by [K]. Mathematically -
K = O[1]/O[2]
Given is Lewis who is building a train layout and wants to build a model of the train station in his city. He wants it to be exactly to scale to match his engine. The engine measures 8 inches long and is the model of a train that is 80 feet long. The station in his city is 30 feet by 60 feet by 40 feet.
Now, it is given here that Lewis assumed a dilation model in which 80 feet is 8 inches long. Then -
80 feet = 8 inches
So one feet will be -
1 ft = 8/80 = 1/10 inches
Now, the dimensions of station in Lewis native city is 30 feet by 60 feet by 40 feet.
Now, dilating the dimensions with a scale factor of 1/10 inches, we get -
30 feet = 30 x 1 feet = 30 x 1/10 = 3 inches
60 feet = 60 x 1 feet = 60 x 1/10 = 6 inches
40 feet = 40 x 1 feet = 40 x 1/10 = 4 inches
Therefore, the dimensions of his model of the train station would be
3 inches by 6 inches by 4 inches.
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Do I have to make the plus sign a minus I’m unsure n + 16 = 9
Answer:
n= -7
Step-by-step explanation:
n+16=9
_-16 -16__
n= -7
Answer:
-7 answer
Step-by-step explanation:
n+16=9 subtract 16 from both sides n +16-16=9-16 can u please give me braniest i an w away from moving up
The table represents the function fix).
f(x)
X
-3
-2
−1
0
1
2
3
-3
0
3
69
9
What is (3)?
09
F(3) is equal to 9, based on the given table and the corresponding values of x and f(x). Option D.
To find the value of F(3) based on the given table, we look at the corresponding x-value of 3 and find its corresponding f(x) value.
From the table, we see that when x = 3, f(x) = 9. Therefore, F(3) = 9.
The table shows the values of x and their corresponding f(x) values. We can see that when x increases by 1, f(x) also increases by 3. This indicates that the function has a constant rate of change, where the change in f(x) is always 3 units for every 1 unit change in x.
Given that F(3) represents the value of the function when x = 3, we look at the x-values in the table and find the corresponding f(x) value. In this case, when x = 3, f(x) = 9.
Therefore, the value of F(3) is 9. Option D is correct.
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30. In the figure below, rectangle ABCD shares CD with ACDE,
diagonal BD of the rectangle extends in a straight line
beyond D to E to create DE, and the measure of CDE is
155°.
What is the measure of ZCBD?
F. 25
G.55
H.65
J.90
K.155
The measure of angle ZCBD is 90°. Therefore, the correct option is J. 90.
To find the measure of angle ZCBD, we need to examine the given information.
From the figure, we know that angle CDE is 155°.
Since the opposite angles of a rectangle are congruent, angle BCD is also 155°.
In a rectangle, the sum of the interior angles at a vertex is always 90°.
Therefore, angle CBD is 90°.
Hence, the measure of angle ZCBD is 90°.
Therefore, the correct option is J. 90.
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Help asap plss i will give you brainliest
Answer:
A. -80x + 24
Step-by-step explanation:
- 8( 10x - 3 )
- 8( 10x )
= - 80x
- 8 ( - 3 )
= 24
- 80x + 24
Remember, when you multiply a negative number with another negative number it will become positive
Hope this helps dude
This question is down below. The picture attached below.
Thanks.
The vendor has to sell 88 gingerbread houses to earn a profit of $665.60 and there is no chance that the vendor will earn $1500.
Given an equation showing profits of A Christmas vendor as
P=-0.1\(g^{2}\)+30g-1200.
We have to find the number of gingerbread houses that the vendor needs to sell in order to earn profit of $665.60 and $1500.
To find the number of gingerbread houses we have to put P=665.60 in the equation given which shows the profit earned by vendor.
665.60=-0.1\(g^{2}\)+30g-1200
0.1\(g^{2}\)-30g+1200+665.60=0
0.1\(g^{2}\)-30g+1865.60=0
Divide the above equation by 0.1.
\(g^{2}\)-300g+18656=0
Solving for g we get,
g=[300±\(\sqrt{(300)^{2}-4*1*18656 }\)]/2*1
g=[300±\(\sqrt{90000-74624}]/2\)
g=[300±\(\sqrt{15376}\)]/2
g=(300±124)/2
g=(300+124)/2 , g=(300-124)/2
g=424/2, g=176/2
g=212,88
Because 212 is much greater than 88 so vendor prefers to choose selling of 88 gingerbread houses.
Put the value of P=1500 in equation P=-0.1\(g^{2}\)+30g-1200.
-0.1\(g^{2}\)+30g-1200=1500
0.1\(g^{2}\)-30g+1500+1200=0
0.1\(g^{2}\)-30g+2700=0
Dividing equation by 0.1.
\(g^{2}\)-300g+27000=0
Solving the equation for finding value of g.
g=[300±\(\sqrt{300^{2} -4*1*27000}\)]/2*1
=[300±\(\sqrt{90000-108000}] /2\)
=[300±\(\sqrt{-18000}\)]/2
Because \(\sqrt{-18000}\) comes out with an imaginary number so it cannot be solved for the number of gingerbread houses.
Hence the vendor has to sell 88 gingerbread houses to earn a profit of $665.60 and there is no chance that the vendor will earn $1500.
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Dexter has a gift card for $20.00 to an electronics store. He also has a coupon for 25% off his entire purchase, so he will be paying 75% of the total cost. He plans to buy a video game for $10.00 and batteries for $2.00. Select the equation that represents how much money will be left on his gift card after his purchases if x represents his remaining balance.
What is the equation that represents his remaining balance?
Answer:
Step-by-step explanation:
x=20(.75)+2+10 (or 12 if it says that)
Answer:
The linear equation that represent the situation is \(x=20-0.75(10+2)\)
The remaining balance on his gift card is $11
Step-by-step explanation:
Let x represent the remaining balance.
We know that the linear equation that represent the situation is equal to\(x=20-0.75(10+2)\)
Solve
\(x=20-0.75(12)\)
\(x=20-9\)
x=$11
Please solve thank you!!
Will mark brainliest
Answer:
I think the answer is 169 because of the exponent
Under his cell phone plan, Joseph pays a flat cost of $48 per month and $3 per gigabyte, or part of a gigabyte. (For example, if he used 2.3 gigabytes, he would have to pay for 3 whole gigabytes.) He wants to keep his bill under $55 per month. What is the maximum whole number of gigabytes of data he can use while staying within his budget?
Answer:
gigabytes
gigabytes
Answer: 2 is the maximum number of gigabytes
Step-by-step explanation:
Find the area of the rectangle EFGH
Answer:
875
Step-by-step explanation:
40% of Damien‘s marbles are blue. Damien has three marbles how many of the marbles are not blue
40% of Damien’s marbles are 6/5 or 1.2.
What is a percentage?A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.
Given:
Damien has three marbles.
40% of Damien’s marbles are blue.
That means,
40% of 3 blue marbles.
So, using the percentage formula,
40% of 3,
= 40 x 3/100
= 120/100
= 12/10
= 6/5
= 1.2
Therefore, 1.2 marbles are blue.
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Find the slope and y ✨
Answer:
Y=3x
Slope: 3
Y int. (0,0)
Y=-2/3x-3
Slope: -2/3
Y int (0,-3)
Step-by-step explanation:
Which statements must be true about two similar figures? Select all that apply.
Group of answer choices
-The ratio of the corresponding angles equals 1.
-One triangle can be mapped onto the other triangles through a sequence of transformations.
-The ratios of corresponding side lengths are equal.
-The two triangles share a common side.
-The two triangles have exactly one pair of corresponding angles.
The statements that are true concerning two similar figures include:
The ratio of the corresponding angles equals 1.
The ratio of corresponding side lengths are equal. That is option A and C.
What is ratio?Ratio is defined as the number of time a proportion is doing in another proportion.
The similarity that exists between figures or shapes such as a triangle is being proven using Congruence & Similarity. That is,
To say that figures are similar, they must be congruent that is similar when superimposed.All the angle of their sides must also be equal and identical. There the ratio of the angel = 1.The sides of the figure must be proportional.Learn more about angles here:
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