Answers
Answer:
I would say C is the 1 to 1 function.
Answer:
B
Step-by-step explanation:
The guy above said it
Related Questions
There were 240 girls and 360 boys at the playground what percentage of children were girls.
Things you need to have
• Answer
• Work
Answers
work- First you can add the two numbers and get 600. Then divide by six to see that there is 100. Then divide both original numbers by 6 to see that the percentage of girls is 40 and boys is 60.
Answer:
66.67%
Explanation:
240/360
240/360×100/100
240×100
(-------------)× 1/100=66.67/100
360
66.67/100=66.67
The length l of a rectangle is decreasing at a rate of 3 cm/sec while the width w is increasing at a rate of 3 cm/sec. When l=5 cm and w=12 cm, find the rates of change of the area, the perimeter, and the lengths of the diagonals of the rectangle. Determine which of these quantities are increasing, decreasing, or constant.
a) The rate of changes of the area of the rectangle is _______ cm^2/sec
Is the area increasing, decreasing, or constant?
b) The rate of change of the perimeter of the rectangle is ____ cm/sec.
Is the perimeter increasing, decreasing, or constant?
c) The rate of change of the length of the diagonals of the rectangle is ____ cm/sec.
Is the length of the diagonals increasing, decreasing, or constant.
Answers
Answer:
1) dA/dt = -21 cm²/s and Area is decreasing
2)dP/dt = 0 and perimeter is constant
3) dD/dt = 21/13 cm/s and diagonal is increasing
Step-by-step explanation:
We are given that;
length l of a rectangle is decreasing at a rate of 3 cm/sec.
Thus, dl/dt = -3 cm/sec
Also, the width w is increasing at a rate of 3 cm/sec. Thus;
dw/dt = 3 cm/sec
When l=5 cm and w=12 cm;
A) Area is given by the formula;
A = lw
The rate at which area is increasing is;
dA/dt = l(dw/dt) + w(dl/dt)
Plugging in the relevant values;
dA/dt = 5(3) + 12(-3)
dA/dt = 15 - 36
dA/dt = -21 cm²/s
This is less than 0.thus, A is decreasing.
B) Formula for perimeter is;
P = 2l + 2w
rate of change of perimeter is;
dP/dt = 2(dw/dt) + 2(dl/dt)
Plugging in the relevant values, we have;
dP/dt = 2(-3) + 2(3)
dP/dt = 0
Thus,Perimeter is constant
C) the length of the diagonal of a rectangle is given by;
D = √(w² + l²)
Rate of change of diagonal is;
dD/dt = [2w(dw/dt) + 2l(dl/dt)]/(2√(w² + l²))
2 will cancel out in numerator and denominator to give;
dD/dt = [w(dw/dt) + l(dl/dt)]/(√(w² + l²))
Plugging in the relevant values gives;
dD/dt = [12(3) + 5(-3)]/(√(12² + 5²))
dD/dt = (36 - 15)/13
dD/dt = 21/13 cm/s
This is greater than 0.
Thus, diagonal is increasing.
BRAINLIST SO QUICK HELP ME
Answers
Answer:
2nd option
Step-by-step explanation:
6 * 6 * 6 = 216
Find the values of x,y, and z in the triangle to the right. Help is very appreciated! :)
Answers
The drawing is very poor because it shows that it’s an equilateral triangle but in the same time they made it confusing with using the degree sign on the variables..
Very confusing but the best way to do it is
Y+2x+1=180
Y=179-2x
Z+2x-1=180
Z= 181-2x
We found the previous but knowing that a straight line gives us 180
After that we equate all angles in the triangle to 180 (crazy eh?! Also definition of a triangle all angles make up 180)
X+179-2X+181-2X=180
-3x=180-181-179
X=60
Which gives us Y=59 and Z=61 from the equation we created in the beginning.
Fingers crossed it’s correct. Double check my math !
What is the best name of the line?
Answers
The three angles of a triangle have
measures of 56°, (2x + 4)º, and xº
What are the measures of the three
angles of the triangle? (TEK 8.8D)
A. 56°, 80°, 44°
B. 56°, 90°, 34°
C. 56°, 84°, 40°
D. 56°, 60°, 64°
Answers
Answer:
56°, 84°, 40°
Step-by-step explanation:
The three angles of triangles have measures of 56°, (2x + 4)º, and xº.
We need to find the measures of the three angles of the triangle.
We know that, the sum of angles of triangle is equal to 180º. Using this property we get :
56°+ (2x + 4)º + xº =180º
Solving for x.
60 + 3x = 180
3x = 120
x = 40º
Other angle, = 2x+4
= 2(40)+4
= 80+4
= 84º
So, the measures of the three angles of the triangle are 56°, 84°, 40°. Hence, the correct option is (c).
There are 42 boys and 48 girls in sixth grade and each student must be assigned a home room. Each homeroom should have the same number of boys and the same number of girls.
what is thegreatest possible number of sixth grade students?
Answers
Answer:
50
Step-by-step explanation:
you add 42 and 48 i think
A table is 600 inches long. How long is the table in feet?
Answers
Answer:
50 ft
Step-by-step explanation:
Answer: 50
Step-by-step explanation: there are 12 inches in a feet. 600 inches/ 12 feet= 50
10 points need help asap image to help
Answers
The age of a car and the value of the car
O Positive Correlation
O Negative correlation
Answers
Positive Correlation
EXPLANATION:
What is the slope of the line that passes through the points (-3, -9)(−3,−9) and (22, -4) ?(22,−4)? Write your answer in simplest form.
Answers
Answer:
1/5
Step-by-step explanation:
Equation: [tex]\frac{y_{2} - y_{1}}{x_{2} - x_{1}}[/tex]
Points: (-3, -9) and (22, -4)
[tex]y_{2}[/tex] is the second y point that shows up on the question, basically go by order. So it's -4
[tex]y_{1}[/tex] is -9, because again, in order of which coordinates pop-up first in the question
[tex]x_{2}[/tex] is 22, [tex]x_{1}[/tex] is -3
Now input into the equation, to make it easier we'll split the fraction into 2 equations:
[tex]\frac{y_{2} - y_{1}}{x_{2} - x_{1}}[/tex] = [tex]y_{2} - y_{1}[/tex] and [tex]x_{2} - x_{1}[/tex], we'll put them back in a fraction later
[tex]y_{2} - y_{1}[/tex] = -4 - (-9) = -4 + 9 = 5
[tex]x_{2} - x_{1}[/tex] = 22 - (-3) = 22 + 3 = 25
now put it in the fraction, remember y on top x on the bottom:
5/25, simplify, 1/5
Find the perimeter of a regular hexagon with each side measuring 8 meters.
a.
32 m
c.
48 m
b.
80 m
d.
40 m
Answers
Sue bought 7 notebooks for $8.75. Jolie bought 4 notebooks for $5.08. Who got the better bargain? By how much?
Answers
Answer:
235
Step-by-step explanation:
Answer:
sue.
Step-by-step explanation:
sue paid 1.25 per book while Joliet paid 1.27. hope that helps
Juan pago $50.00 pesos por 3 cajas de paquetes y 5 cajas de clavos, mientras que Pedro compró 5 cajas de taquetes y 7 cajas de clavos y tuvo que pagar $ 74.00 pesos . ¿ Cual es el precio de cada caja de taquetes y clavos ?
a) ¿ Cuantas incógnitas hay en el problema ?
b) ¿ Cuántas ecuaciones puedes construir según el texto?
c) ¿ Cuales son esas ecuaciones?
Answers
B ) dos
C ) 50 dividida 8, 74 dividida 12
espero que esto haya ayudado!
te agradecería que me dieras un gracias y brainliest (:
The crew of a garbage truck takes 5 hours to empty all the bins in one neighborhood on pickup day. The city assigned a second garbage truck to this neighborhood. During their training, it took the crew from the second truck 8 hours to empty all the bins.
Answers
Answer:62% Step-by-step explanation:
can someone please answer because I need to know now !
Answers
Answer:
its option 2 because the y values don't repeat
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
(someone passed this to me) 90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you
Please help me solve this question will give you braisnlt !
Answers
Answer:
t = 54 m + 160
Step-by-step explanation:
I can do the whole explanation unless you just need the answer that's the correct answer
What is the domain of the relation shown?
will mark as branliest
Answers
Answer:
2 or 4
Step-by-step explanation:
Matt was babysitting for friend's parents Saturday morning and was paid $10 per
hour for 3 hours. Later that evening, he was babysitting for another couple that paid
him $20 per hour for 5 hours. What was Matt's average rate of pay per hour for the
day?
Answers
Answer:
Matt was paid an average of $10 per hour of babysitting for the day.
Step-by-step explanation:
He babysat in the morning for 3 hours being paid $10 per hour. He later babysat in the evening for 5 hours being paid $20 per hour. Since he was being paid two different amounts throughout the day, the average would be $10. He was being paid atleast $10 per hour for babysitting because even though he was being paid $20 in the evening, the lowest amount of money that he was paid, was $10 making that the average.
b) Chill Pill Pharmaceuticals is expecting a growth rate of 14% for the next two years due to its new drug. Thereafter it should level to an 8% growth rate. The last dividend paid was $0.65 per share. What price should the stock sell for if investors require 12% return?
Answers
Answer:
0.20
Step-by-step explanation:
max is thinking of a number which he calls n
Answers
Answer:
what are you trying to ask?
Step-by-step explanation:
Uranus is 19.2 AU. How many miles apart is Uranus from the Sun?
Answers
Answer:
Uranus distance from the sun is 1.79 billion miles.
Hope it helps :)
Step-by-step explanation:
Which of the following is true about the expression c5 + (–9c2) + 40c + 7d7e3 – 5c3 + 4d?
Answers
Answer: the coefficient of the fourth term is 7
Step-by-step explanation: 1) there is a negative coefficient
2)the first term is 1 not 0
3) third term is 40 not c
How to solve -6(8x+20) incorrectly
Answers
What is the yintercept of f(x) = (1/4)^x
Answers
Answer:
(0,1)
Step-by-step explanation:
Answer
Answer:
(1/4)^x
Step-by-step explanation:
Look at the graph
Which of the graphs below represents the soltuion set for d - 4 > -3?
Answers
Answer:
Answer choice "C".
Step-by-step explanation:
In this question, we have to find the graph that fits the inequality.
First, we need to simplify the inequality.
Solve:
d - 4 > -3
Add 4 to both sides.
d > 1
Now, we can find which graph fits the inequality.
We know that the graph has to start at 1, so we can already eliminate answer choices A, B, and D.
General rule of them is that the direction of the arrow is the opposite direction of the inequality sign.
If the inequality is ">", the arrow on the graph should be pointed rightward (→)
If the inequality is "<", the arrow on the graph should be pointed leftward (←)
Since out inequality sign is ">", the arrow has to be pointing rightward, therefore making answer choice "C" the right answer.
What is the volume of a sphere with a diameter of 4 meters? (Use 3.14 for π.) 18.84 m 3 100.48 m 3 33.49 m 3 25.12 m 3
Answers
Answer:
Step-by-step explanation:
the formula for Volume of the sphere is
V=4/3 * π*r^3
diameter =4, r=2
V=4/3 * 3.14 * 8=33.49
Help I need to turn this in by 12:30
Answers
If x is two according to the coordinate points, that means the equation is now -8+3y=-17
Add 8 to each side- 3y=-9
And divide -9 by 3
This gets you y=-3
What is the y-intercept of the line?
Answers
It crosses the y axis at 4... it is 4 :)
Answer:
a. (0, 4)
General Formulas and Concepts:
Algebra I
The y-intercept is the y value when x = 0. Another way to reword that is when the graph crosses the y-axis.Step-by-step explanation:
According to the graph, the line crosses the y-axis at y = 4. Therefore, our y-intercept is 4. Writing it in coordinate point would be (0, 4), as definition of the y-int.
i need help with this asap! will give brainiest if answered correctly
Answers
Answer:
Step-by-step explanation:
2
