Answer:
-16 should be the answer
Step-by-step explanation:
According to PENDAS you always to parentheses first so (7-15)= -8 you then multiply that by 2 and get -16.
Hope this helps.
Question
If y varies directly as w and y = 8, when w =
2
find the equation that relates v and w.
Provide your answer below:
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Given parameters:
y varies directly as w;
This interpreted implies that as y increases, we increases by a certain factor or amount;
So, y ∝ w
y = kw
where k is the constant of proportionality
Now, given that y = 8 and w = 2
Input in the equation to solve for k;
8 = k x 2
Solving k gives, k = 4
Now to the second part,
if v is directly proportional to w;
v = k w
So v = 4w
The equation that relates v to w is v = 4w
What is h2=0.36
I will give 20 points
Answer: Take the root of both sides and solve.
h= 0.6, − 0.6
A home builder wants 5 acres of land split into 13 equal sections. Three of these expressions give the number of acres of land each home will have. Which one does NOT? Choices:
A: 13 divided by 5
B: 5/13
C: 1/13 of 5
D: 5 divided by 13
Answer:
b 5/13
Step-by-step explanation:
soni has 196 pencils. if she puts equal amounts of pencils into eight boxes,she has four pencils left.How many pencils does she put in the box?
which strategy could help solve this world problem?
Answer:
The answer is D) If x represents the number of pencils per box, solve the equation 8x + 4 = 196.
Step-by-step explanation:
A heptagon has all equal side lengths.
Which statements are true about the reflectional symmetry of a regular heptagon? Select two options.
It has only 1 line of reflectional symmetry.
A line of symmetry will connect 2 vertices.
A line of symmetry will connect a vertex and a midpoint of an opposite side.
It has 7-fold symmetry.
A line of symmetry will connect the midpoints of 2 opposite sides.
Answer:
answers 3 and 4 ^0^
Step-by-step explanation:
have a good day <3
The correct options are:
It has only 1 line of reflectional symmetry.
A line of symmetry will connect a vertex and a midpoint of an opposite side.
What is a reflection?A reflection is a type of transformation that involves flipping a shape, known as the preimage, over a line, known as the line of reflection, to produce a new shape (called the image). You can picture what would happen if you flipped the form over the line in order to graph a reflection.
A regular heptagon has one line of reflectional symmetry, which passes through the midpoint of one side and the opposite vertex.
This line divides the heptagon into two congruent halves.
Additionally, there are six lines of symmetry that connect a vertex and the midpoint of the opposite side.
Each of these lines bisects the angle at the vertex and divides the heptagon into two congruent parts.
To learn more about the reflection;
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A survey of magazine subscribers showed that rented a car during the past months for business reasons, rented a car during the past months for personal reasons, and rented a car during the past months for both business and personal reasons. Round your answers to three decimal places. a. What is the probability that a subscriber rented a car during the past months for business or personal reasons? b. What is the probability that a subscriber did not rent a car during the past months for either business or personal reasons?
Answer:
[tex]P(business\ or\ personal) = 69.8\%[/tex]
[tex]P(Not(business\ or\ personal)) = 30.2\%[/tex]
Step-by-step explanation:
The question has missing details; however, the giving parameters are:
[tex]P(business) = 45.8\%[/tex]
[tex]P(personal) = 54\%[/tex]
[tex]P(both) = 30\%[/tex]
Solving (a): Business or Personal
This is calculated as follows:
[tex]P(business\ or\ personal) = P(business) + P(personal) - P(both)[/tex]
[tex]P(business\ or\ personal) = 45.8\% + 54\% - 30\%[/tex]
[tex]P(business\ or\ personal) = 69.8\%[/tex]
Solving (b): Not business or personal
This is calculated using complements of probability;
[tex]P(Not(business\ or\ personal)) = 1 - P(business\ or\ personal)[/tex]
[tex]P(Not(business\ or\ personal)) = 1 - 69.8\%[/tex]
[tex]P(Not(business\ or\ personal)) = 30.2\%[/tex]
Find the inverse for the relation.{ (-5,7), (-6, -8), (1, -2), (10, 3) }
Answer:
{(7, -5), (-8, -6), (-2, 1), (3, 10)}Step-by-step explanation:
The inverse for the relation (a, b) is (b, a).
Therefore the inverse for the relation
{(-5, 7), (-6, -8), (1, -2), (10, 3)}is
{(7, -5), (-8, -6), (-2, 1), (3, 10)}{(7, -5), (-8, -6), (-2, 1), (3, 10)} is the inverse for the relation { (-5,7), (-6, -8), (1, -2), (10, 3) }.
What are coordinates?A pair of numbers called coordinates are used to locate a point or a form in a two-dimensional plane. The x-coordinate and the y-coordinate are two numbers that define a point's location on a 2D plane.
Given, few coordinates { (-5,7), (-6, -8), (1, -2), (10, 3) }
We need to find inverse relation of these coordinates.
Since, The inverse of a relation is a relation obtained by interchanging or swapping the elements or coordinates of each ordered pair in the relation.
Inverse relation in sets can be defined using the ordered pairs. The domain and range of an inverse relation can be written by swapping the domain and range of that relation. That means the domain of relation will be the range of its inverse, and the range of relation will be the domain of its inverse.
The inverse for the relation (a, b) is (b, a).
Therefore, the inverse for the relation { (-5,7), (-6, -8), (1, -2), (10, 3) } is:
{(7, -5), (-8, -6), (-2, 1), (3, 10)}
Learn more about coordinates here:
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2. Before you open a checking account, why might you want to figure out how many
in-network ATMs are near your home or school?
Answer:
because if there are ATMs that arent in network, then you wont have coverage for what you pay for
-1 3/5÷40 please answer quick!
Answer: -0.04
Step-by-step explanation:
3. A square has vertices (0,0),(5,2).(3,7), and (-2,5). Which of these statements is true?
A. The square's side length is 5.
B. The square's side length is between 5 and 6.
C. The square's side length is between 6 and 7.
D. The square's side length is 7
Answer:
B. The square's side length is between 5 and 6.
Step-by-step explanation:
We are given a square with vertices
A(0,0), B(5,2), C(3,7), and D (-2,5)
We solve using the Formula
√(x2 - x1)² + (y2 - y1)²
Where we have (x1, y1) and (x2, y2)
For AB
A(0,0), B(5,2)
= √(5 -0)² + (2 - 0)²
= √5² + 2²
= √25 + 4
= √29
= 5.3851648071
For BC
B(5,2), C(3,7),
= √(3 - 5)² + (7 - 2)²
= √-2² + 5²
= √4 + 25
= √29
= 5.3851648071
For A D
A(0,0),D (-2,5)
√(-2- 0)² + (5 - 0)²
= √-2² + 5²
= √4 + 25
= √29
= √5.3851648071
For CD
C(3,7), D (-2,5)
√(-2 - 3)² + (5 - 7)²
= √-5² + -2²
= √25 + 4
= √29
= 5.3851648071
The lengths of the sides of the square is equal to each other.
Therefore, the statement that is true about this square is option
B. The square's side length is between 5 and 6.
Nina owns a coffee shop. Nina has 992.4 kg of coffee.
She needs to put the coffee into bags that each hold 0.6
kg.
How many bags will be filled?
Answer:
1654
Step-by-step explanation:
divide 992.4 by 0.6
Answer:
1654
Step-by-step explanation:
divide 992.4 / 0.6
2 less than the square of a number.
Answer:
n²-2
Step-by-step explanation:
Let's let n stand for a number. 2 less than a square of a number, that means, the result of n²-2 is two less than n². I hope this makes sense!
A cup of coffee at 93 degrees Celsius is placed in a room at 23 degrees Celsius. Suppose that the coffee cools at a rate of 1 degrees Celsius per minute when the temperature of the coffee is 70 degrees. The differential equation describing this has the form dTdt=k(T−A), where A= 23 , and k= -1 . Either from drawing the direction field (try Maple or by hand) or other intuitive means, the limiting value of T should be:__________
Answer:
Step-by-step explanation:
The rate of change of temperature of the coffee with respect to time is expressed by the differential equation
dT/dt=k(T−A) when k = -1 and A = 23. The equation will become:
dT/dt = -(T-23)
If the coffee cools at the rate of 1°C per minute, then dT/dt = -1 and T = 70
Substituting into the equation:
-1 = k(70-23)
-1 = 47k
k = -1/47
k = -0.0213
Substituting k = -0.0213 into the original equation, the differential equation will be:
dT/dt=k(T−A)
dT/dt = -0.0213(T-23)
dT/dt = -0.0213T+0.489
To get the value of T, we will use variable separable method
dt = dT/-0.0213T+0.489
Integrate both sides
t = -0.0213ln(-0.0213T+0.489)
At t = 1 minute
1 = -0.0213ln(-0.0213T+0.489)
1/-0.0213 = ln(-0.0213T+0.489)
-46.95 = ln(-0.0213T+0.489)
Apply exp to both sides
e^-46.95 = e^ln(-0.0213T+0.489)
4.073×10^-21= -0.0213T+0.489
-0.0213T = 4.073×10^-21-0.489
-0.0213T = -0.489
T = 0.489/0.0213
T = 22.96°C
Find mGJI
A. 15
B. 75
C. 100
D. 105
Answer: B
Step-by-step explanation:
What is the constant of proportionality in the equation y=x/9?
0
1/9
8/9
1
Answer: B 1/9
Step-by-step explanation:
A questionnaire was sent to 34,000 randomly chosen individuals living in USA asking about their current and past smoking habits. For those who answered the questionnaire, they are tracked in the next 10 year for the death rate. Their data was pulled from the health record database so that if they died, the death is recorded with the diagnosis of the cause of the death. The death rates due to heart disease among the smokers and nonsmokers are then compared to see if smoking causes heart disease. What is the targeted population
Answer: The targeted population is the population of the human being from which the sampling will be done.
Step-by-step explanation:
The target population is the group of individuals where a particular sample will be drawn. It should be noted that sample simply means the people who are going to take part in a particular investigation.
The targeted population is the population of the human being from which the sampling will be done. Since the objective of the experiment is to link effect of smoking and heart disease, human being will be the targeted population.
A scuba diver is 12 meters below sea level. If the diver descends 39 meters further, what integer represents the scuba diver’s new elevation relative to sea level? I'll give brainliest if I get it right!
Answer:
12-39=x
Step-by-step explanation:
7∣x−2∣+7=−2∣x−2∣+2
Pls answer
1. -3=
IN
2. 27 - 5.0 = -13
3. 4x - 5 = 27
4. ; +5=12
5.3(2x + 3) + 3 = -2 (2-6)
6. 102- 4 (1+4x) = -4(2-3)
Answer:
3. 4x-5=27
4x=27+5
4x=32
x=8
5. 3(2x+3)+3=-2(2-6)
(6x+9)+3=-4+12
6x+9+3=8
6x+12=8
6x=8-12
6x=-4
x=-4/6
x=-2/3
6. 102-4(1+4x)=-4(2-3)
102-4-16x=-8+12
98-16x=4
-16x=4-98
-16x=94
x=94/-16
x=6
(See pic) identify wheather the relation is a function and the correct domain
Answer:
good question
Step-by-step explanation:
Marks age next year will be three times jims age from 2 years ago. If the sum of their ages now is 21, how old are they? plz help, I am gonna get killed by my parents.
Answer: Mark is 14 and Jim is 7.
Step-by-step explanation: It says that next year Mark will be threee times older than Jim was 2 years ago.
The wrk is:
7-2=5(Jims age 2 years ago)
5x3=15
15-1=14(you subtract 1 because Mark's current age is 14 because it says that next year it will be 3 times Jim's)
simplify the following y^-1z^5×y^3z^2
Answer:=y^3z^7y
Step-by-step explanation:
What is the exponential form of 100000
Answer:
10^4
Step-by-step explanation:
Jameson is leading a fundraiser to raise money for a river cleanup event. So far, he has collected $34.16 towards his goal of $220. Jameson uses the
progress bar to chart the money collected for the fundraiser.
River Cleanup Fundraiser Progress Bar
$34.16
$0
$20
$40
$60
$80 $100 $120 $140 $160 $180 $200 $220
What value represents the midpoint of the amount of money that Jameson has not yet collected?
$92.92
$110.00
O $127.08
O $144.16
HELP!! WILL MARK BRAINLIEST!! SEE ATTACHMENT AND ANSWER THEM ALL!
Answer:
1.) yes
2.)yes
3.)no
4.)yes
5.)no
Step-by-step explanation:
Answer: yes, yes, no, yes, no
5. What is the different forms of 5.39?
A father is ten times as old as his daughter. In 5 years he will be just five times as old as she will be. How old are they now?
Answer:
The daughter is 4, the father is 40
Step-by-step explanation:
If the daughter is 4 then the father is 40, 10 *4 = 40
in five years the daughter will be 9, 9 * 5 = 45
Answer:
The daughter is 4, the father is 40
Step-by-step explanation:
If the daughter is 4 then the father is 40, 10 *4 = 40
in five years the daughter will be 9, 9 * 5 = 45
2x + y = 5
4x - 2y = 6
Answer:
Assuming you want to solve for x,
x = 2
Step-by-step explanation:
2x + y = 5
Solve for y
y = 5 - 2x
4x - 2y = 6
Solve for y
y = -3 + 2x
Since both these equations equal y, they must equal each other.
Make an equation for these to equal each other.
Then solve for x
5 - 2x = -3 + 2x
+ 2x + 2x Add
5 = - 3 + 4x
+ 3 +3 Add
8 = 4x
/4 /4 Divide
2 = x
An investment that you bought for________ and sold for________ made a profit.
A. $700; $600
B. $600; $500
C. $700; $500
D. $600; $700
Answer:
D: $600;$700
Step-by-step explanation:
If you made a profit by selling it then you got more money in return.
Could I please have BRAINLIEST.
The Classic Hotel provides room service for its guests. The process for room service begins with a room service manager who takes orders of food and beverages by phone and transmits them to the kitchen and the bar at an average of 2 minutes per order. Each food order is prepared in an average of 15 minutes in the kitchen. There are five equally competent chefs in the kitchen, each of whom prepares complete orders, working in parallel. The one bartender takes 3 minutes to fill each beverage order, and works in parallel with the kitchen. When the kitchen and bar order are both ready, a waiter takes them to the room. There are eight waiters to provide the service, and each order takes 20 minutes for a waiter to put together and deliver. What is the capacity rate of each activity
