what is the coefficient of the x-term in the expression 4x+5xy-2y
Answer:
5
Step-by-step explanation:
Can someone answer these three questions? Thank you
Answer:
D, B, B
Step-by-step explanation:
Question 1: D
We need to solve for x.
z = 2π * (x / y)¹/²
z = 2π * (x¹/² / y¹/²)
z = 2π * (√x / √y)
z = √x * 2π / √y
√x = √y * (z / 2π)
x = y(z /2π)²
Question 2: B
(x⁵ + x⁴) / (x³ + x²)
= x⁴(x + 1) / x²(x + 1)
= x⁴ / x² = x⁽⁴⁻²⁾ = x²
Question 3: B
Let's try out A. Substituting p = 1, q = 1:
√1 * √1 = √(1 + 1)
1 * 1 = √2
1 = √2 FALSE
Let's try B. Substituting p = 2, q = 2:
√2 * √2 = √(2 + 2)
√4 = √4 TRUE so the answer is B.
"Construct c=a+b by drawing and calculating the direction and magnitude of c. The direction should be measured from the +x-axis" how do you do this problem?
Answer:
The question seems to be incomplete, so i will answer in a general way.
Ok, i guess that here we have two vectors:
a = (Ax, Ay) and b = (Bx, By).
Now we have that:
c = a + b = (Ax, Ay) + (Bx, By) = (Ax + Bx, Ay + By).
Now, to calculate the magnitude of a vector (x, y) we have:
√(x^2 + y^2)
Then the magnitude of c will be:
IcI = √( (Ax + Bx)^2 + (Ay + By)^2)
And for the direction:
First, the direction is already defined by the vector c.
But a more exact (and easy to read) way is:
When we have a vector (x, y).
The angle between this vector and the x-axis is given by:
Tan(θ) = y/x.
Then in the case of c.
Tan(θ) = (Ay + By)/(Ax + Bx)
θ = ATan( (Ay + By)/(Ax + Bx) )
Determine the domain of the function. f as a function of x is equal to the square root of x plus one divided by x plus four times x minus six.
Answer:
a)
Step-by-step explanation:
We have been given a function . We are asked to find the domain of our given function.
We can see that our given function is a rational function and numerator of our given function is a square root.
To find the domain of our given function, we will find the number that will make our denominator 0 and the domain of square root function will be the values of x that will make our numerator non-negative.
Undefined points for our given function:
The domain of denominator is all values of x, where x is not equal to negative 4 and positive 6.
Non negative values for radical:
The domain of numerator is all value of x greater than or equal to negative
Upon combining real regions and undefined points for our given function, the domain of our given function will be all values of x greater than or equal to negative 1, where x is not defined for 6.
Therefore, domain of our given function is .
Questions #3 - 10 Record the LETTER OF THE FRACTION card that is equivalent to the decimal representation below. Not all cards will be used. HINT: Use your calculator to convert all fraction cards to decimals BEFORE you solve #3 - #10.
#3 *
10 points
Captionless Image
d
#4 *
10 points
Captionless Image
This is a required question
#5 *
10 points
Captionless Image
e
#6 *
10 points
Captionless Image
g
#7 *
10 points
Captionless Image
This is a required question
#8 *
10 points
Captionless Image
#9 *
10 points
Captionless Image
#10 *
10 points
Captionless Image
Answer:
Step-by-step explanation:
From science fiction to science fact, there is a concept that suggests that there could be other universes besides our own, where all the choices you made in this life played out in alternate realities. The concept is known as a "parallel universe," and is a facet of the astronomical theory of the multiverse.
Round 7412 to the nearest thousand
Answer: 7000
Note: 5 and up rounds up. 4 and below rounds down.
4 < 5 so that means we won't need to round up we round down.
7412 = 7000
If we were to round up then the answer would of been 7500.
Suppose the population of a town is 8,200 and is growing 4% each year, what is the population expected to be in 10 years
Answer:
12,138 people
Step-by-step explanation:
Create an equation using the basic exponential growth equation:
y = a(1 + r)^t, where a is the initial amount, r is the growth rate as a decimal, and t is the amount of time in years.
Plug in the values we know
y = a(1 + r)^t
y = 8200(1 + 0.04)^10
y = 8200(1.04)^10
= 12,138 people
f(x) = = 3x + 10
g(x) = x - 2
Find f(g(5))
9
19
23
-10
Given : f(x) = 3x + 10 and g(x) = x - 2
To Find : f(g(5))
[tex]:\implies\sf\:g(x) = x-2[/tex]
[tex]:\implies\sf\:g(5) = 5-2[/tex]
[tex]:\implies\bf\:g(5) = 3[/tex]
Now,
[tex]:\implies\sf\:f(x)=3x+10[/tex]
[tex]:\implies\sf\:f(g(5))=3x+10[/tex]
[tex]:\implies\sf\:f(3)=3(3)+10[/tex]
[tex]:\implies\sf\:f(3)=9+10[/tex]
[tex]:\implies\boxed{\bf{\blue{f(3)=19}}}[/tex]
Please help, I am desperate!?! Will name Brainliest!!
Suppose that a spotlight is used for lighting objects at many different distances and that the area A of the light circle produced is related to the distance x to the lighted object by A=0.1x^2.
a. If the spotlight produces 250 lumens of light energy, what function gives the intensity of the light I, (in lumens per square foot) as a function of the distance x in feet from the spotlight to its target?
b. Write and solve equations that match these questions about the light intensity from the spotlight.
i. What is the intensity of light on an object that is 20 feet from the spotlight source?
ii. How far from the spotlight is an object that recieves 100 lumens of light per square foot?
Answer:
Intensity = 2500/x^2
6.25 lumem
5 Feets
Step-by-step explanation:
Given the following :
Area (A) = 0.1x^2
Intensity, Energy and Area are related by the formular :
Intensity = power / Area
A) If 250 lumens of light energy is produced :
Intensity (I) = 250 / 0.1x^2
Intensity = 2500/x^2
x = distance
B) USING THE EQUATION :
1) What is the intensity of light on an object that is 20 feet from the spotlight source?
x = 20
Intensity = 2500/x^2
Intensity = 2500/20^2
Intensity = 2500/400
Intensity = 6.25 lumen
11) How far from the spotlight is an object that recieves 100 lumens of light per square foot?
Intensity = 100
100 = 2500 / x^2
100x^2 = 2500
x^2 = 2500/ 100
x^2 = 25
x = 5 Feets
In Ms. Ford's classroom 13 students are able to fit comfortably into a 5 by 5 square.
Use this value to estimate the size of a crowd that is 10 feet deep on both sides of the street standing
along a 1-mile section of a parade route.
Answer:
Estimate of crowd is 27456.
Step-by-step explanation:
Given that a square of 5 by 5 can have 13 students.
Area of a square = [tex]side^2[/tex] = 25
Area of 25 can have 13 students.
Now, it is given that 10 feet square are used for crowd.
Area of square of side 10 feet = 100
So, area of 100 can have 13 [tex]\times[/tex] 4 = 52 people from crowd
Now, it is given that the parade route is 1 mile long.
1 mile = 5280 feet
1 mile = 528 [tex]\times[/tex] 10 feet
It means that there are 528 number of such squares on the 1 mile section of the parade route.
Kindly refer to the attached image as well.
So, number of people or the estimate of the size of crowd is:
528 [tex]\times[/tex] 52 = 27456
The endpoints of segment GH are G(-3,0) and H(11,- 4). What is the midpoint of segment
GH?
Answer:
The answer is ( 4 , - 2)Step-by-step explanation:
The midpoint M of a line segment can be found by using the formula
[tex] M = ( \frac{x1 + x2}{2} , \frac{y1 + y2}{2} )[/tex]where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
G(-3,0) and H(11,- 4)
Their midpoint is
[tex]M = ( \frac{ - 3 + 11}{2} , \frac{0 - 4}{2} ) \\ = ( \frac{8}{2} , - \frac{4}{2} )[/tex]We have the final answer as
( 4 , - 2)Hope this helps you
Please help! 3. Tim grouped these numbers together.
3
2
8
-101, -6.41, -19,-1,-0.3
3'
What rationale could Tim provide?
Answer:round up to the Nernst number
Step-by-step explanation:
Hope this helps
Answer:
round up the number
Step-by-step explanation:
(WILL GIVE BRAINLIEST!)
Find the distance d(A,B) between points A and B.
A(1,-6); B(1,6)
Answer:
12
Step-by-step explanation:
Since the x values are the same, we only have to look at the difference between the y values
6 - -6
6+6
12
The distance is 12
Answer:
[tex]\Huge \boxed{12}[/tex]
Step-by-step explanation:
To find the distance between two points, apply the distance formula:
[tex]d=\sqrt{(x_2-x_1)^2+ (y_2-y_1)^2 }[/tex]
Plug in the values.
[tex]d=\sqrt{(1-1)^2+ (6-(-6))^2 }[/tex]
Evaluate.
[tex]d=\sqrt{(0)^2+ (12)^2 }[/tex]
[tex]d=\sqrt{144}[/tex]
[tex]d=12[/tex]
simplify 4y+6x-3(x-2y)
Answer:
10y + 3x
Step-by-step explanation:
(4y + 6x) - 3 • (x - 2y)
Answer:
I think it's 10y+3x
Step-by-step explanation:
I search it up :(
Add. Write your answer as a fraction in simplest form. 9/10+(−4/5)= will mark brainliest
Answer:
[tex]\boxed{\frac{1}{10}}[/tex]
Step-by-step explanation:
[tex]\frac{9}{10}+(-\frac{4}{5})\\\\ \frac{9}{10}-\frac{4}{5}\\\\\text{LCM} (10,5): 10\\\\\rightarrow \frac{4*2}{5*2}=\frac{8}{10}\\\\\frac{9}{10} -\frac{8}{10}\\\\\boxed{\frac{1}{10}}[/tex]
Hope this helps.
Mr. and Mrs. Nelson are going to build a new home. They need to have working drawings of their house plans created by a design firm. They will choose between Rock the House Digital Designs and Elegant Home Architects. Rock the House Digital Designs charges $500.00 for the initial consultation with the Nelsons, plus $50.00 for every additional hour of work for the house plans. Elegant Home Architects charge $75.00 per hour for the house plans. Let ℎ represent the number of hours for which Mr. and Mrs. Nelson hire the design firm. Which of the following statements are true? Select all that apply. he expression 50ℎ represents the total charge for Rock the House Digital Designs.
a.The expression 75ℎ represents the total charge for Elegance Home Architects.
b.The expression 500 + 75ℎ + 50ℎ represents the total amount the Nelsons will spend working drawings of their new house plans.
c.If the Nelsons hire the design firm for 15 hours, then Elegance Home Architects will be cheaper.
d.If the Nelsons hire the design firm for 25 hours, then Rock the House Digital Designs will be cheaper.
Answer:
The correct statements are (a), (c) and (d).
Step-by-step explanation:
The information provided is:
Rock the House Digital Designs charges $500.00 for the initial consultation with the Nelsons plus $50.00 for every additional hour of work for the house plans.Elegant Home Architects charge $75.00 per hour for the house plans.The variable h represent the number of hours for which Mr. and Mrs. Nelson hire the design firm.The total charge for Elegance Home Architects, if the Nelsons choose them will be:
Total for Elegance = 75 × h = 75h.
Suppose the Nelsons hire the design firm for 15 hours.
Total for Elegance = 75 × h = 75 × 15 = $1,125
Total for Rock = 500 + (50 × h) = 500 + (50 × 15) = $1,250
So, the Elegance Home Architects will be cheaper.
Suppose the Nelsons hire the design firm for 25 hours.
Total for Elegance = 75 × h = 75 × 25 = $1,875
Total for Rock = 500 + (50 × h) = 500 + (50 × 25) = $1,750
So, the Rock the House Digital Designs will be cheaper.
Thus, the correct statements are (a), (c) and (d).
What is 27 multiplied by 4,684. Please do not answer in decimals. I need a whole number and a remainder.
Answer:
126468 is the result of 27 multiplied by 4684
Find the measure of b+d. A. 74 B. 90 C. 32 D. 58
Answer:
B. 90°
Step-by-step explanation:
Quadrilateral inscribed in the circle with center O is a cyclic quadrilateral.
Opposite angles of a cyclic quadrilateral are supplementary.
Therefore,
(b + d) + (32° + 58°) = 180°
b + d + 90° = 180°
b + d = 180° - 90°
b + d = 90°
Describe the opposite of a positive integer, the opposite of a negative integer, and the opposite of zero.
In an interview last month, the rebels estimated that a few hundred of their fighters had been trained over the past two years, and they received close to two million dollars worth of ammunition, guns, and heavy artillery during the same time period.
A) had been trained over the past two years, and they
B) were trained over the past two years, and they had
C) were trained over the past two years and they have
D) had been trained over the past two years and that they had
E) had been trained over the past two years and that they have
Answer:
D) had been trained over the past two years and that they had
Step-by-step explanation:
In the context, the sentence speaks of something that happened in the past, so 'had been' is required and also it speaks of parallelism of events, as an estimation is being made so, parallelism should be maintained.
Hence, option (D) satisfies the two requirements. And eliminate option A, B, C and E.
Thus, (D) is correct.
Town B is 6 miles due north of town A, and town C is due east of town A. It is 11 miles from town B to town C. Find the distance from town A to towAn C.
Answer:
12.53 miles
Step-by-step explanation:
6² + 11² = x²
36 + 121 = x²
157 = x²
x = 12.53 miles
The distance from town A to town C would be; 12.53 miles.
What is a numerical expression?A numerical expression is an algebraic information stated in the form of numbers and variables that are unknown. Information can is used to generate numerical expressions.
We are given that Town B is 6 miles due north of town A, and town C is due east of town A. It is 11 miles from town B to town C.
Therefore,
6² + 11² = x²
36 + 121 = x²
157 = x²
x = 12.53 miles
Hence, the distance from town A to town C would be; 12.53 miles.
To know more about an expression follow;
brainly.com/question/19876186
#SPJ5
Bob thought of an even and odd number, multiplies the numbers together, added 6, divided by 5, and subtracted 3 to give an answer of 1. What was the odd number he started with?
Answer:
7
Step-by-step explanation:
Working backward, we can find Bob's initial product.
We subtracted 3 to get 1, so we had 4.
We divided by 5 to get 4, so we had 20.
We added 6 to get 20, so we had 14
After Bob multiplied the two numbers together, he had 14. We know that 14 is the product of 2 and 7. The odd number is 7.
An underwater canyon begins at 40 feet below sea level and is 105 feet deep. What is the elevation of the bottom of the canyon?
Answer:
145 ft below sea level
Step-by-step explanation:
40 + 105 = 145
Answer:
145 feet
Step-by-step explanation:
Check whether the numbers are divisible by 4:
(i) 23408
(ii) 100246
(iii) 34972
(iv)150126
(v) 58724
Step-by-step explanation:
a no. is divisible by 4 if the last two digits are a mutiple of 4
is divisble because of 08is not divisible because of 46is divisible 72not divisible 26divisible 24Just divide the last two no. by 4 to find the divisibilityAnswer:
(i), (iii), (v).
Step-by-step explanation:
If a number is divisible by 4 then its last 2 digits are divisible by 4.
For example 23408 is because 08 is divisible by 4.
A book sold 35,300 copies in its first month of release. Suppose this represents 6.3 of the numbers sold to date. How many copies have been sold to date?
Answer:
560,317.460
Step-by-step explanation:
The computation of copies that have been sold is shown below:-
we assume the number of copies is x
So, the number of copies in the first month is
= [tex]\frac{6.3}{100} x[/tex]
As per the situation the number of sold copies is 35,300 so the equation will be
[tex]\frac{6.3}{100} x = 35,300[/tex]
[tex]6.3x = 35,300\times 100[/tex]
[tex]x = \frac{35,300\times 100}{6.3}[/tex]
after solving the above equation we will get the number of copied that have been sold to date
= 560,317.460
can someone help me please
Answer:
(4x + 5)(x² + 25)
Step-by-step explanation:
Given
4x³ + 5x² + 100x + 125 ( factor the first/second and third/fourth terms )
= x²(4x + 5) + 25(4x + 5) ← factor out (4x + 5) from each term
= (4x + 5)(x² + 25)
A shop has a 3 for 2 offer on chocolate bars The normal price of a chocolate bar is 72p Sian gets 3 chocolate bars from the shop using this offer How much does she spend Give your answer in pounds
Answer:
1.44 pounds
Step-by-step explanation:
From the above question, we are told that:
The shop has 3 for 2 offer on chocolate bars going on .This means a customer can buy 2 chocolates get 1 free, for the price of 2 chocolates, a customer can get 3 chocolates.
If the price of 1 chocolate bar = 72p
2 chocolate bars =
72p × 2
= 144p
Hence, Sian spends 144p
We are asked to convert our answer to pounds
The symbol p represent pence in money form
Hence,
100p(pence) = 1 pound
144p(pence) = x
100p × x = 144p × 1
x = 144p/100p
x = 1.44 pounds
Therefore, Sian spends 1.44 pounds
Find the value of k, if (1, -1) is a solution of the equation 3x-ky = 8. Also, find the coordinates of another point lying on its graph.
What is the product? Two-thirds times eight-ninths StartFraction 10 over 27 EndFraction StartFraction 16 over 27 EndFraction Two-thirds Five-sixths
Answer:
16/27
Step-by-step explanation:
First let's convert this info an equation and then we will solve.
(2/3) * (8/9) = ?
( 2 * 8 ) / ( 3 * 9 ) = ?
( 16 ) / ( 27 ) = ?
16 / 27 = ?
So our fractional answer is 16/27.
In words this would be sixteen over twenty seven.
Cheers.
Answer:
15/9
Step-by-step explanation:
Find the area of the shaded figure in square feet. Round to the nearest tenth if
necessary.
Answer:
to be honest I'm not sure