Answer:
3.78*2=7.56
7.38*4=29.52
29.52+7.56=37.08
220-37.08=182.92
Penzance, Edinburg and Aberdeen all lie in a straight line.
The distance from Penzance to Aberdeen is 660 miles.
The distance from Penzance to Edenburg is 542 miles.
Work out the distance from Edinburgh to Aberdeen.
Answer: 505
Step-by-step explanation:
I searched it up
please answer! will give brainliest
Answer:
28
Step-by-step explanation:
Mean is just another word for "the average."
To get the mean, you first need to add up al of your values together.
30+15+30+20+45=140
You then divide your product by the number of original values. In this case, there are 5 values.
140/5=28
2^x-4x=0 find the value of x in the equation
9514 1404 393
Answer:
x ≈ 0.309906932381 or 4
Step-by-step explanation:
There are no algebraic methods of solving a mixed exponential and polynomial equation. The value of x can be found by guessing, or by other means such as trial and error or graphing.
Attached is a graph showing two solutions. x = 4 is the integer solution (2^4 = 4·4). The irrational solution is approximately x ≈ 0.309906932381. That precision is obtained by Newton's method iteration, easily done by a graphing calculator.
Plz help ASAP 20 points What is m
A.39°
B. 51°
C.70.5°
D.78°
Answer: 51
Step-by-step explanation: QTR is the inscribed angle, so QTR = 1/2 * QSR, so QSR = 78. QSR is an isosceles triangle, since it uses the radius of the circle twice, so QRS = (180 - 78)/2 = 51
Cindy owns a plot of land measuring 630 yards wide by 987 yards long what is the area of the land in square yards, square feet, acres and square miles
Answer:
621,810 square yards
1,865,430 square feet
128.47 acres
353.30 square miles
Step-by-step explanation:
Since Cindy owns a plot of land measuring 630 yards wide by 987 yards long, to determine what is the area of the land in square yards, square feet, acres and square miles, the following calculations must be performed:
1 yard = 3 feet
1 square yard = 0.000206612 acres
1 yard = 0.000568182 miles
Square yards: 630 x 987 = 621,810 square yards
Square feet: 621,810 x 3 = 1,865,430 square feet
Acres: 621,810 x 0.000206612 = 128.47 acres
Square miles: 621.810 x 0.000568182 = 353.30 square miles
help me find the length of the given arc please
Answer:
Step-by-step explanation:
use the formula s = Фr
where 's' is the length of the line segment along the circle
Ф = angle in radians , so use pi / 180 for degrees
and r is the radius
s = (75*pi / 180) * 12
s = 5 pi ft.
:)
5. Explain how you could use compatible numbers to estimate 245 ÷ 3. Then estimate the quotient.
Answer:
8
Step-by-step explanation:
Compatible numbers are defined as the numbers which are very close to the numbers that they are replacing that divides evenly into each other.
In the context, we have to estimate the quotient using the compatible numbers in order to estimate 245 divided by 3.
So, estimating 245 as 240 and 3 as 30.
Here, 240 is very close to 245 and 30 is close to 3. So the quotient is the result when we divide 240 by 30 and it divides evenly into 240.
We first divide the non zero parts of each number i.e. 24 by 3 to get the first part of the estimate.
Then we add on the zero if there were left in the problem to get your estimate.
Therefore,
240 / 30 = 8
So here, the quotient is estimated as 8.
A computer program found that the line c=2t−89c=2t−89c=2t−89 is a good fit for the data. Use this equation to predict how many cups of lemonade Lin might sell on a day when the high temperature is 74 degrees.
Answer:
58cups
Step-by-step explanation:
Given the equation for the line as c = 2t - 89
If the temperature is 74 degrees, then we can find the number of cups at this temperature;
Substitute t = 74 unti the expression
x = 2(74) - 89
c = 147 - 89
c = 58cups
Hence the number of cups of lemonade is 58cups
which expression is equal to 1/6?
Each year a certain type of tree grows vertically 14/15 as much as it did the year before. If the tree grows 1.5m during the first year, how much growth will it have in 20 years?
https://answers.yahoo.com/question/index?qid=20180411132938AApZYZz
The required growth of the tree after 20 years is 3, 813 meters.Here,
Given that,
Each year a certain type of tree grows vertically 14/15 as much as it did the year before. If the tree grows 1.5m during the first year.
To determine how much growth will it have in 20 years.
The function which is in format f(x) =a^x where a is constant and x is variable, the domain of this exponential function lies (-∞, ∞).
The tree grows vertically 14/15 as much as it did the year before.
= 1.5 * 14 / 15
= 1.5 * 0.94
= 1.41
Total growth after 1 year = 1.5 + 1.41
= 2.91
Percentage growth = 1.41 / 2.91 = 0.48%
Now,
Growth after 20 years,
= 1.5 (1 + 0.48)^20
= 1.5(1.48)^20
= 3,813.51
Thus, the required growth of the tree after 20 years is 3, 813 meters.
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derivative of cosx/x
Answer:
Step-by-step explanation:
I assume that you mean cos(x)/x, not cos(x/x).
Use the quotient rule.
Find the polynomial of degree 3 such that the coefficient of x2
is three less than the coefficient
of x3
; the coefficient of x is 3 times the coefficient of x2
; and the constant term is two more than
the coefficient of x3
. The sum of the coefficients is -4.
Answer:
1/5[8x³ –7x² –21x + 18]
Step-by-step explanation:
Let the polynomial be:
ax³ + bx² + cx + d
Where:
a => is the coefficient of x³
b => is the coefficient of x²
c => is the coefficient of x
d => is the constant term.
From the question given above,
Coefficient of x² (b) = a – 3 ..... (1)
Coefficient of x (c) = 3b ...... (2)
Constant term (d) = 2 + a ..... (3)
Sum of coefficient (a + b + c) = –4
a + b + c = –4
b = a – 3
c = 3b = 3(a – 3)
a + b + c = –4
a + (a – 3) + 3(a – 3) = –4
a + a – 3 + 3a – 9 = –4
Collect like terms
a + a + 3a = –4 + 3 + 9
5a = 8
Divide both side by 5
a = 8/5
Substitute the value of a into equation (1)
b = a – 3
a = 8/5
b = 8/5 – 3
b = (8 – 15)/5
b = –7/5
Substitute the value of b into equation (2)
c = 3b
b = –7/5
c = 3(–7/5)
c = –21/5
Substitute the value of a into equation (3)
d = 2 + a
a = 8/5
d = 2 + 8/5
d = (10 + 8)/5
d = 18/5
SUMMARY:
a = 8/5
b = –7/5
c = –21/5
d = 18/5
Thus, the polynomial:
ax³ + bx² + cx + d
8/5x³ + (–7/5)x² + (–21/5)x + 18/5
8/5x³ –7/5x² –21/5x + 18/5
1/5[8x³ –7x² –21x + 18]
Identify the solution(s) of the graph, if any. HELP PLEASE! THANK U!!! <3
Answer:
solutions:-4,0we can clearly see that the parabola crosses x-axis at (-4,0) and (0,0) coordinates therefore the solutions are -4 and 0A seller has a house that is 1800 square feet. The neighborhood comps show
the line of best fit to be y = 0.074x +50 48. What is a fair price for this house?
A. $150,000
B. $183.68
C. $150.00
D. $184,000
SUBMIT
A fair price for the seller's 1800 square foot house is $183.68 thousand, option B is correct
What is Equation?Two or more expressions with an Equal sign is called as Equation.
The given linear equation represents a relationship between the square footage (x) and the price (y) of houses in the neighborhood.
We can use this equation to estimate the fair price for the seller's house by plugging in the square footage (x) of the house and solving for y:
y = 0.074x + 50
y = 0.074(1800) + 50
y = 133.2 + 50
y = 183.68
Hence, a fair price for the seller's 1800 square foot house is $183.68 thousand, option B is correct
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Explain why the denominator does not change when you are counting by the
unit fraction 1
··4
to reach 3
··4 .
Answer: Your splitting 1 into 4 parts and I don't think anything here tells me you need to simplify bc then it would be, 1/2, which is not 3/4. It's like having one quarter that equals 25c, 50, 75, a 1.00, but it's 0.25 and 0.75?
Step-by-step explanation:
One morning, the temperature in Urbana, Illinois, was 15° Fahrenheit. By evening, the temperature had dropped 25° Fahrenheit. What was the temperature (in °F) that evening?
The temperature started at 15 degrees.
It dropped 25 degrees.
Subtract 25 from 15:
15 - 25 = -10
The temperature was -10 degrees.
Please help me ASAP I’ll mark Brainly
$18.50 + $6.75x=
and then for 4 hours it would be $45.50
A rectangular box is to have a square base and a volume of 40 ft3. If the material for the base costs $0.34 per square foot, the material for the sides costs $0.05 per square foot, and the material for the top costs $0.16 per square foot, determine the dimensions of the box that can be constructed at minimum cost.
Answer:
The dimensions of the box so that total costs are minimum are a side length of 2 feet and a height of 5 feet.
Step-by-step explanation:
Geometrically speaking, the volume of the rectangular box ([tex]V[/tex]), in cubic feet, is represented by this formula:
[tex]V = l^{2}\cdot h[/tex] (1)
Where:
[tex]l[/tex] - Side length of the box, in feet.
[tex]h[/tex] - Height of the box, in feet.
In addition, the total cost of the box ([tex]C[/tex]), in monetary units, is defined by this formula:
[tex]C = (c_{b}+c_{t})\cdot l^{2} + 4\cdot c_{s}\cdot l\cdot h[/tex] (2)
Where:
[tex]c_{b}[/tex] - Unit cost of the base of the box, in monetary units per square foot.
[tex]c_{t}[/tex] - Unit cost of the top of the box, in monetary units per square foot.
[tex]c_{s}[/tex] - Unit cost of the side of the box, in monetary units per square foot.
By (1), we clear [tex]h[/tex] into the expression:
[tex]h = \frac{V}{l^{2}}[/tex]
And we expand (2) and simplify the resulting expression:
[tex]C = (c_{b}+c_{t})\cdot l^{2}+4\cdot c_{s}\cdot \left(\frac{V}{l} \right)[/tex] (3)
If we know that [tex]c_{b} = 0.34\,\frac{m.u.}{ft^{2}}[/tex], [tex]c_{s} = 0.05\,\frac{m.u.}{ft^{2}}[/tex], [tex]c_{t} = 0.16\,\frac{m.u.}{ft^{2}}[/tex] and [tex]V = 40\,ft^{3}[/tex], then we have the resulting expression and find the critical values associated with the side length of the base:
[tex]C = 0.5\cdot l^{2} + \frac{8}{l}[/tex]
The first and second derivatives of this expression are, respectively:
[tex]C' = l -\frac{8}{l^{2}}[/tex] (4)
[tex]C'' = 1 + \frac{16}{l^{3}}[/tex] (5)
After equalizing (4) to zero, we solve for [tex]l[/tex]: (First Derivative Test)
[tex]l-\frac{8}{l^{2}} = 0[/tex]
[tex]l^{3}-8 = 0[/tex]
[tex]l = 2\,ft[/tex]
Then, we evaluate (5) at the value calculated above: (Second Derivative Test)
[tex]C'' = 3[/tex]
Which means that critical value is associated with minimum possible total costs. By (1) we have the height of the box:
[tex]h = 5\,ft[/tex]
The dimensions of the box so that total costs are minimum are a side length of 2 feet and a height of 5 feet.
Which part of the decision-making process is directly related to brainstorming?
a. defining the objective
b. collecting relevant data
C. generating possible options
d. implementing and evaluating
Answer:
C.
b. would be ahead of brainstorming
The answer is Option C , generating possible options is directly related to brainstorming .
What is Decision Making ?Decision making can more accurately be viewed as a process. It rarely occurs at one instance.
By viewing Decision making as a process managers are more likely to be able to identify and assess the issues associated with making the decision.
By taking a more process driven approach, you will be more likely to lead a broader acceptance of the decision—and to more effective implementation
Generating possible options is directly related to brainstorming.
Phase 1 of the Decision making process
To establish a context for success , this is the point at which you set the parameters for the decision making process.
Phase 2: of the Decision making process:
Assessing the situation and choosing a course of action--- when you determine the root cause of the issue you are trying to resolve and discuss possible solutions.
Phase 3 of the Decision making process
Communicating and implementing the decision
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Scientist are studying a bacteria sample. The function f(x) - 325(1.17)* gives the number of
bacteria in the sample at the end of x days.
Which statement is the best interpretation of one of the values in this function?
A The initial number of bacteria is 17.
B. The initial number of bacteria decreases at a rate of 83% each day.
C The number of bacteria increases at a rate of 17% each day,
D The number of bacteria at the end of one day is 325,
At a parade, 2/10 of the beads Melissa caught were purple and 43/100of the bead she caught were gold. the rest of the beads she caught were green. What fraction of the beads that Melissa caught were either purple or gold?
By selling a chair for Rs 1680, a trader loses 20% . Find the cost price of the chair.
Rs 1200
Rs 1600
Rs 2100
Rs 1800
Answer:
Rs 2100
Step-by-step explanation:
SP= 1680
loss percent = 20%
CP= (SP * 100 ) / ( 100 – percentage loss )
168000 / 80
= 2100
I hope im right!!!
helppppp me please this twi
Answer:
4.) 7 : 4 = 36[g] : x [g]
7 * x [g] = 4 * 36 [g]
7 * x [g] = 144 [g]
x [g] = 144 [g] / 7
x [g] ≈ 20, 57 [g]
5.) 3:2 250
3x + 2x =250
5x=250
x=50
3x=3*50=150
2x=2*50=100
Given a triangle with B = 41˚, a = 21, and b = 12. Approximate the measure
of angle A to the nearest 0.1˚.
PLEASE HELP ME!!!!!:)))
20. Find the length of BC in the figure below.
Answer:
Step-by-step explanation:
I'll let you solve it, but I will tell you how to
Ever heard of Thales theorem? If you haven't, here's what it is:
If a line parallel to one of the bases of a triangle is drawn, then the new triangle formed and the original triangle are similar
Why? They are similar because of AA (two equal angles):
∠AEB = ∠ADC since EB and DC are parallel (on a transversal they are corresponding angles which are congruent)
∠ABE = ∠ACD since EB and DC are parallel (on a transversal they are corresponding angles which are congruent)
Now this is enough information to determine that they are similar, but just for good measure, ∠A is common to both triangles so:
∠A = ∠A because of reflexive property
Now that we know they are similar, corresponding parts of similar triangles are similar
Create a ratio and solve is by cross-multiplying
Let me know if you have any questions! Hope this helps! Have a nice day/night :)
The length of BC in the figure below of triangle is 24.
We can use the Pythagorean Theorem to solve for the length of BC. The Pythagorean Theorem states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides. In this case, the hypotenuse is BC, and the other two sides are AB and AC.
[tex]AB^2[/tex] + [tex]AC^2[/tex] = [tex]BC^2[/tex]
We are given that AB = 16 and AC = 12. Plugging these values into the equation, we get:
[tex]16^2[/tex] + [tex]12^2[/tex] = [tex]BC^2[/tex]
256 + 144 = [tex]BC^2[/tex]
400 = [tex]BC^2[/tex]
BC = 20
Therefore, the length of BC is 20.
Here are the steps in detail:
Identify the right triangle in the figure.
Label the sides of the triangle with the letters A, B, and C, where C is the hypotenuse.
Substitute the known side lengths into the Pythagorean Theorem.
Solve for the length of BC.
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Which of these is an example of a literal equation?
A. ax - by = k
B. 8 - 2x = 14
C. 5x + 9y
D.4 + 12 = 42
Among the given equation, (ax - by = k) is the example of a literal equation.
What is a literal equation?"A literal equation is an equation which consists primarily of letters. Formulas are an example of literal equations.
Given equations are:
A. ax - by = k: is a literal equation as per definition.
B. 8 - 2x = 14: is not a literal equation. It is a linear equation with variable 'x'.
C. 5x + 9y: it is not an equation.
D.4 + 12 = 42: it is not an equation.
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Express the radical using the imaginary unit,
ii
i
i
.
Express your answer in simplified form.
±−55=±\pm\sqrt{-55}=\pm
±
−55
=±
Answer:
Step-by-step explanation:
Answer:
[tex]+\sqrt{55i}[/tex]
Step-by-step explanation:
Khan <3
in an equilateral triangle, the incenter, orthocenter, circumcenter, and centroid are __________.
A. On the same line
B. Unequal
C. Imaginary
D. The same point
Answer:
D. The same point
Step-by-step explanation:
An equilateral triangle can be defined as a type of triangle that has all of its sides being equal in length.
This ultimately implies that, an equilateral triangle comprises of three (3) congruent sides and as such creates three (3) congruent angles that measures 60° each. Also, the sum of the congruent angles of an equilateral is always equal to 180°.
Hence, in an equilateral triangle, the incenter, orthocenter, circumcenter, and centroid are the same point i.e all of the three (3) centers fall on the same point or spot.
Ronald is calculating the density of oranges in a crate. He knows the number of oranges in the crate and the volume of the crate. Which of the following formulas can be used to calculate the density of oranges in the crate? (6 points) Density = volume of crate over number of oranges Density = number of oranges over volume of crate Volume of shelf = density over number of oranges Number of books = density over volume of crate
Answer:
B. Density = number of oranges over volume of crateStep-by-step explanation:
The density would be the number of oranges per unit of volume:
Density = number of oranges / volume of crateCorrect choice is B
Density = number of oranges over volume of crate Volume of shelf is right formula
The net below can be folded to form a square pyramid atop a cube. The net consists of 5 congruent squares and 4 congruent triangles.
A net of a square pyramid on top of a cube. The cube has side lengths of 4 centimeters. The pyramid has triangular sides with a height of 5 centimeters.
What is the surface area of the composite solid that can be formed by this net?
80 cm2
120 cm2
144 cm2
160 cm2 I know the answer its 144 but i want to know how to do it
Answer:
80cm2
Step-by-step explanation:
Answer: C 144 BABA
Step-by-step explanation:
