Answer:
Step-by-step explanation:
kinda confusing but ill do my best :/
if what youre saying is m(x) = -4 like x = -4 then do this
plug in -4 for x and solve
= 2(-4) - 10
= -8 - 10
= -18
or are you saying like the whole equation is equal to -4 and we need to solve for x do this
plug in -4 for 'y'
-4 = 2x - 10
then solve for x
6 = 2x
3 = x
sorry if this is confusing but i hope this helps <3
write the sum of 7√28x⁶+4√7x⁶ in simplest form, if x≠0
Answer:
18√7x⁶
Step-by-step explanation:
Given the expression 7√28x⁶+4√7x⁶, we are to fund the sum in its simplest form as shown;
7√28x⁶+4√7x⁶
= 7√(7*4)x⁶+4√7x⁶
= 7*2√7x⁶+4√7x⁶
= 14√7x⁶+4√7x⁶
Factor out the like term
= 2√7x⁶(7+2)
= 2√7x⁶(9)
= 18√7x⁶
Hence the sum is equivalent to 18√7x⁶
Answer: 18[tex]\sqrt{7}|x|^3[/tex]
Step-by-step explanation:
Raul has $1,200 to deposit into two different savings accounts.
Raul will deposit $450 into Account 1, which earns 4.8% annual simple interest.
He will deposit $750 into Account 2, which earns 3.75 interest compounded annually.
Raul will not make any additional deposits or withdrawals. What is the total balance of these two accounts at the end of 4 years.
(A) $86.40
(B) $1405.39
(C) $536.40
(D) 868.99
Answer:
Compound interest is calculated by;
Initial amount x (100%xinterest%)^(years)
My workings which I also checked with another and they agree doesn't come back to your options. But closest answer is B.
Step-by-step explanation:
$450x(1.048^4) = $542.82
$750x(1.0375^4) = $868.99
$542.82 + $868.99 = $1,411.81
5. Ashley runs 5/8 miles in 4 minutes 30 seconds. Josh runs 3/4 mile in 5 minutes 15 seconds. Who
is the faster runner? Show how you know.
Answer:
Step-by-step explanation:
Given six consecutive integers with a sum of seven times the
second number, write an algebraic equation for this situation.
Answer:
x + x + 1 + x + 2 + x + 3 + x + 4 + x + 5 + x + 6 = 7(x + 1)
Step-by-step explanation:
Equations
The situation can be written as an algebraic equation by setting the variables as follows:
x = first integer
x + 1 = second integer
x + 2 = third integer
x + 3 = fourth integer
x + 4 = fifth integer
x + 5 = sixth (and last) integer
The sum of all six numbers must be equal to 7 times the second number, thus:
x + x + 1 + x + 2 + x + 3 + x + 4 + x + 5 + x + 6 = 7(x + 1)
What is 1000/234
I need the answer really fast
Step-by-step explanation:
4.2735
you can use calculator to verify
Solve the following word problem. Please show all of your work. "I have
4 more pairs of shoes than my sister. Together, we have 20 pairs of shoes.
How many pairs of shoes does my sister have?"
Answer:
ANSWER: 8
(I think)
Step-by-step explanation:
I kinda just counted it cant be more than 11 because if u have 4 more than it would be 11+15=26 too much and so is ten (both equations show why there too much) 10 10+14=24. Lets try 8 8+12=20 so your sis has 8 pairs
need some help understanding this.. plss
C, 4r^4 - 2r^2 - 3r + 13 simplify the expression
Consider an algorithm that uses only assignment statements that replaces the quadruple (w, x, y, z) with (x, y, z, w). What is the minimum number of assignment statements needed?
Answer:
The minimum number of assignment statements needed is 5
Step-by-step explanation:
To write the algorithm, we apply the strategy of interchanging the values of variables in the assignment statements.
Assume "tmp" is the new variable, let assign tmp to w
The algorithm is:
Procedure exchange (w,x,y,z: integers)
tmp := w
w := x
x := y
y := z
z := tmp
return (w,x,y,z)
end
From the algorithm, it is obvious that there will be a minimum of 5 assignment statements needed.
Identify the slope (m) for y=3x+2.
Answer:
3
Step-by-step explanation:
y=mx+b
the m here is 3
How to write Equation of a line that is perpendicular to the line y=3x-5 and passes through the point (5,10)
branlest have a nice day :p
Answer:
1. G
2. C
3. F
4.E
5.A
6.D
Step-by-step explanation: Hope it helps, and please give me brainliest.
Each week as part of her workout, Monica walks 0.5 mile, runs 1.6 miles, and then walks 0.75 mile.
How many total miles will Monica walk and run in a year?
Answer:run:83.43 miles
Walk:39.11 miles
Step-by-step explanation:
There are 52.143 weeks in a year;
So each week she runs 1.6 miles=1.6*52.143=83.43 miles
Walks 0.75 miles=0.75*52.143=39.11 miles
Answer the questions
Answer:
Not sure
Step-by-step explanation:
Not shre
Which coordinate plane represents the linear relationship 4x+5y=20
Answer: y-intercept is 0,4
Step-by-step explanation:
Answer:
I believe its C
Step-by-step explanation:
The x intercept is (5,0) and the y intercept is (0,4)
Here's a video for more help:
ht tps://w ww.you tube .com/w atch? v=hG yK6i v0 Lg8
Please erase the spaces
hope i helped! GL!!
What is the value of x?
Answer:
Step-by-step explanation:
If you were really careful, you should say there is no solution. You have to know that x and 8 are parallel.
The side showing 6 and 6 are sides of a large and small triangle
The large triangle is 6 + 6 = 12
The small triangle is 6
So 8 and x are going to be in the same proportion.
x/6 = 8/12 Cross multiply
12x =48
x = 48/12
x = 4
What is the quotient of 8/9 ÷ 16/9
Answer:
1/2 or 0.5
Step-by-step explanation:
if fencing cost 10$ per foot, and is 4 feet wide and 5 feet long. How much will you need to spend ?
Answer:
$90
Step-by-step explanation:
Please need help it’s due today
Answer:
B. David's sprinkler uses less water per minute.
Step-by-step explanation:
David's sprinkler uses 10 gallons every 5 minutes, which is 2 gallons a minute.
George's sprinkler uses 6 gallons a minute, which means it uses more.
David's sprinkler uses less and it uses exactly 2 gallons a minute.
Quaddlateral CART is dilated with the center at the origin and a scale
factor of 6/5
Describe Quaddlateral CART and Quadrilateral C’A’R’T’by completing the
table below with the BEST answer
Answer:
Step-by-step explanation:
Rule for the dilation of a point by a scale factor 'k' about the origin is,
(x, y) → (kx, ky)
If the scale factor for the dilation is [tex]k=\frac{6}{5}[/tex],
Rule for the dilation,
A(x, y) → A'[tex](\frac{6}{5}x,\frac{6}{5}y)[/tex]
If the coordinates of point A' (Image) is given and we have to find the coordinates of point A (Preimage),
Rule for the dilation,
A'(x, y) → [tex]A(\frac{5}{6}x,\frac{5}{6}y)[/tex]
Quadrilateral CART Quadrilateral C'A'R'T'
(x, y) [tex](\frac{6}{5}x,\frac{6}{5}y)[/tex]
C(-5, 15) C'(-6, 18)
A(10, 5) A'(12, 6)
R(-20, -10) R'(-24, -12)
T(-25, 0) T'(-30, 0)
What is the value of this expression? {12÷(9−6)}+4×6 Enter your answer in the box.
Answer:
28
Step-by-step explanation:
PEMDAS
P: 9-6= 3
E:
M: 4 x 6= 24
D: 12/ (9-6=3)= 4
A: 12/ (9-6=3) + (4x6= 24) = 28
SIMPLIFIED EQUATION
12/3 + 4x6
4 + 24 = 28
g A rotating light is placed 3 meters from a wall. Let W be the point on the wall that is closest to the light. Suppose the light completes a rotation every 15 seconds. Use an inverse trigonometric function to determine how fast the beam of light is moving along the wall when the tip of the light is 1 meter from W. Express your answer in meters per minute.
Answer:
[tex]v=\frac{80}{3}\pi \frac{m}{min}[/tex]
Step-by-step explanation:
In order to start solving this problem, we can begin by drawing a diagram of what the problem looks like (see attached picture).
From that diagram, we can see that we have a triangle we can analyze. We'll call the angle between the vertical line and the slant line [tex]\theta[/tex]. And we'll call the distance between W and the point we are interested in l.
Now, there are different things we need to calculate before working on the triangle. For example, we can start by calculating the angle [tex]\theta[/tex].
From the diagram, we can see that:
[tex]tan \theta = \frac{l}{3}[/tex]
when solving for [tex]\theta[/tex] we will get:
[tex]\theta = tan^{-1} (\frac{l}{3})[/tex]
we could use our calculator to figure this out, but for us to get an exact answer in the end, we will leave it like that.
Next, we can calculate the angular velocity of the beam. (This is how fast the beam is rotating).
We can use the following formula:
[tex]\omega = \frac{2\pi}{T}[/tex]
where T is the period of the rotation. This is how long it takes the beam to rotate once. So the angular velocity will be:
[tex]\omega = \frac{2\pi}{3} \frac{rad}{s}[/tex]
Next, we can take the relation we previously got and solve for l, so we get:
[tex]tan \theta = \frac{l}{3}[/tex]
[tex]l = 3 tan \theta[/tex]
Now we can take its derivative, so we get:
[tex]dl = 3 sec^{2} \theta d\theta[/tex]
and we can divide both sides of the equation into dt so we get:
[tex]\frac{dl}{dt} = 3 sec^{2} \theta \frac{d\theta}{dt}[/tex]
in this case [tex]\frac{dl}{dt}[/tex] represents the velocity of the beam on the wall and [tex]\frac{d\theta}{dt}[/tex] represents the angular velocity of the beam, so we get:
[tex]\frac{dl}{dt} = 3 sec^{2} (tan^{-1} (\frac{l}{3})) (\frac{2\pi}{15})[/tex]
we can simplify this so we get:
[tex]\frac{dl}{dt} = (\frac{2\pi}{5})sec^{2} (tan^{-1} (\frac{l}{3}))[/tex]
we can use the Pythagorean identities to rewrite the problem like this:
[tex]\frac{dl}{dt} = (\frac{2\pi}{5})(1+tan^{2} (tan^{-1} (\frac{l}{3})))[/tex]
and simplify the tan with the [tex]tan^{-1}[/tex] so we get:
[tex]\frac{dl}{dt} = (\frac{2\pi}{5})(1+(\frac{l}{3})^{2})[/tex]
which simplifies to:
[tex]\frac{dl}{dt} = (\frac{2\pi}{5})(1+(\frac{l^{2}}{9}))[/tex]
In this case, since l=1, we can substitute it so we get:
[tex]\frac{dl}{dt} = (\frac{2\pi}{5})(1+(\frac{1}{9}))[/tex]
and solve the expression:
[tex]\frac{dl}{dt} = (\frac{2\pi}{5})(\frac{10}{9})[/tex]
[tex]\frac{dl}{dt} = \frac{20}{45}\pi[/tex]
[tex]\frac{dl}{dt} = \frac{4}{9}\pi \frac{m}{s}[/tex]
now, the problem wants us to write our answer in meters per minute, so we need to do the conversion:
[tex] \frac{dl}{dt} = \frac{4}{9}\pi \frac{m}{s} * \frac{60s}{1min} [/tex]
[tex]velocity = \frac{80}{3} \pi \frac{m}{min}[/tex]
jesuseduardomontiel0 avatar
jesuseduardomontiel0
3 days ago
Mathematics
High School
Daniel has 4.8 pounds of ground beef. He makes 8 burgers of equal amounts. Daniel draws this model to show how much each burger will weigh. Daniel's model correct? Why or why not?
WOW JIMMY. THATS A BIG . BIG. BIG. NUT SACK
At a trampoline park, jumpers oay a jumping price, p, per hour and a one-time sock fee, s. Which expression represents the cost for 5 friends to jump at the trampoline park for one hour
Answer: (P+S) + 5
Step-by-step explanation:
5= price + sock
Could you please help me I don’t really understand this pleaseeeeeee?
significa lo mismo el .1 en 20.1 km que en 5.1
por que?
Answer:
Si, en tanto los kilómetros siguen un patrón decimal, al igual que los números enteros.
Step-by-step explanation:
La pregunta refiere a si el .1 implica un mismo valor en 20.1 km que en 5.1, es decir, en un numero sin unidad de medición.
Y la respuesta es positiva, en tanto los kilómetros, al igual que los números enteros, se rigen por un patrón decimal, es decir, donde los números pueden descomponerse en unidades divisibles por diez. Así, el .1 implica que, tanto en el kilómetro como en el numero entero, se trata del 10% del valor de la unidad en cuestión.
Are these two ratios equivalent? Why or Why not? 4:5 12:15.
Answer:
yes
Step-by-step explanation:
12 ÷ 4 = 3
15 ÷ 5 = 3
yes they are equivalent.
A real estate agent wishes to estimate the monthly rental for apartments based on the size (square feet) and location of the apartments. She chose the model y-Po + β1 x1 + β2 x2 + ε, where x1 represents the square footage of the apartment and 1 if located in town center X2 . This linear regression model was fitted to a sample 0 if not located in town center of size 50 to produce the regression equation below. Complete parts a through c y 175+ 1.2x1 +400x2 a. Predict the average monthly rent for an apartment located in the town center that has 1,750 square feet S(Simplify your answer.)b. Predict the average monthly rent for an apartment located in the suburbs that has 1,100 square feet. $ 1455 (Simplify your answer.) c. Interpret b, in the context of this exercise. Based on these data, and holding the________ constant, it is estimated that an apartment is worth $ more if it located in the town center.
Answer:
$2675 ; $1495 ; $400
Step-by-step explanation:
Given the regression model :
y = 175+ 1.2x1 +400x2
y = average monthly rent
x1 = square footage of apartment
x2 = location ; 1 if located in town center ; 0 if otherwise.
1.)
Predict average monthly rent for an apartment located in town center and has 1750 ft²
y = 175+ 1.2(1750) + 400(1)
y = 175 + 2100 + 400
y = $2675
11.) average monthly rent for an apartment located in the suburbs that has 1,100 square feet.
y = 175 + 1.2(1100) + 400(0)
y = 175 + 1320 + 0
y = $1495
111) An apartment is worth $400 more if located in town center (slope of x2)
An apartment is worth 400 dollars more if located in the center of the town than the located in the suburbs.
What is the linear system?A Linear system is a system in which the degree of the variable in the equation is one. It may contain one, two, or more two variables.
The given linear regression model is shown below.
[tex]\rm y = 175 + 1.2 x_1 + 400 x_2[/tex]
y = Average monthly rent
x₁ = square footage of apartment
x₂ = location
1. Predict the average monthly rent for an apartment located in the center of town and has 1750 square feet.
y = 175 + 1.2 × 1750 + 400 × 1
y = 175 + 2100 + 400
y = $2675
2. The average monthly rent for an apartment located in the suburbs has 1100 square feet.
y = 175 + 1.2 × 1100 + 400 × 0
y = 175 + 1320
y = $1495
An apartment is worth 400 dollars more if located in the center of the town than the located in the suburbs.
More about the linear system link is given below.
https://brainly.com/question/20379472
What is the factored form of the expression: x2 - 5x -50
Review the image below. Based on the image, what type of transformation is
this? Be specific and detailed and explain how/why you know. Use details, correct
vocabulary and coordinates to justify your reasoning. Your answer should be in
paragraph form using complete sentences.
Answer:
When you read a sentence, you may first look for the subject or what the sentence is about. The subject usually appears at the beginning of a sentence as a noun or a pronoun. A noun is a word that identifies a person, place, thing, or idea. A pronoun is a word that replaces a noun. Common pronouns are I, he, she, it, you, they, and we. In the following sentences, the subject is underlined once.
Step-by-step explanation:
You will often read a sentence that has more than one noun or pronoun in it. You may encounter a group of words that includes a preposition with a noun or a pronoun. Prepositions connect a noun, pronoun, or verb to another word that describes or modifies that noun, pronoun, or verb. Common prepositions include in, on, under, near, by, with, and about. A group of words that begin with a preposition is called a prepositional phrase. A prepositional phrase begins with a preposition and modifies or describes a word. It cannot act as the subject of a sentence. The following circled phrases are examples of prepositional phrases.
Answer:
this is a rotation. you can tell because point Z is (-5,2) and Z' is (2,5)
Point X was (-5,7) and X' is (7,5) and Point Y was (-2, 2) and Y' is (2,2).
by looking at the picture it was rotated 90 degrees counterclockwise
Step-by-step explanation:
2/5 + 3/4 =
Please Give me The Answer
Answer:
1 3/20
Step-by-step explanation:
2/5 = 8/20
3/4 = 15/20
8/20+15/20 = 13/20
Answer:
23/20
Step-by-step explanation:
To add the fractions we have to make the denominators match so 20 is the least common denominator.
8+15/20
Then add the numerators together and you'll get
23/20
Pls vote me brainliest <3