Answer:
The relation (13,14), (13,5). (16,7). (18,13) is not considered a function
Step-by-step explanation:
Relations are only considered functions if each x value, which is the first number in each ordered pair or set of parentheses, has only one corresponding y-value, which is the second number in each ordered pair. The third option has two y-values, 14 and 5, for one x-value, 13. This means that it does not satisfy the requirements to be a function and therefore it is not a function.
20 - 2x, if x =10
pls i need help
Answer:
0
Step-by-step explanation:
20 - 2x, if x = 10
First, plug in 10 for each value of x.
20 - 2(10) = ?
Next, multiply 2 and 10 due to PEMDAS. (parentheses/exponents, multiplication/division, addition/subtraction)
20 - 20 = ?
Now, subtract.
= 0
Hope this helps!
Luke's baseball team went to an amusement park at the end of the season.
The cost of admission for 5 coaches and 12 players was $407.50.
The admission cost for each coach was $27.50.
What was the admission cost for each player?
A) $22.50
B) $23.97
C) $27.50
D) $31.67
A
B
С
Brian has a melon that weighs 3 pounds. He cuts it into six equal pieces .how many ounces did each piece weigh?
Answer:
8 oz
Step-by-step explanation:
1 lb = 16 oz
3 lb = 3 * 1 lb = 3 * 16 oz = 48 oz
The melon weighs 48 oz.
48 oz / 6 = 8 oz
Answer: 8 oz
whats 2 plus 2?////////////////////////////////////////////////
Answer:
4
Step-by-step explanation:
its like you have 2 fishes and you get two more
Answer:
4
Step-by-step explanation:
When you have two question marks and add two more you have four
????
1234
A man bought a certain number of golf balls for RM 20. If each ball has costed 20 cents less, he could have bought five more for the same money. How many golf balls did he buy?
Answer:
He bought 20 balls
Step-by-step explanation:
Cost of a certain number of golf balls = $20
Let 1 golf ball cost $x
This means number of balls bought = 20 / x
If each ball has costed 20 cents less;
Converting 20 cents to dollars = $0.2
$x - $0.2
he could have bought five more for the same money.
Number of balls = 20/x + 5
Using the formulae;
Cost of 1 ball * Number of balls bought = Amount spent
(x-0.2) (20/x + 5) = 20
Expanding the expression;
x(20/x + 5) - 0.2(20/x + 5) = 20
20 + 5x - 4/x - 1 = 20
19 + 5x - 4/x = 20
5x - 4/x = 1
Multiplying all through by x
5x^2 - 4 = x
5x^2 - x - 4 = 0
(5x + 4)(x - 1) = 0
x = 1 or -4/5
-4/5 is unrealistic hence the correct value is;
x = $1
He bought 20 balls; 20 / x = 20 / 1 = 20
The reduction in the price of each ball increases the number of balls the man can buy at RM 20.
The number of balls he bought is 20 balls.
Reasons:
The given parameters are;
The amount the man bought the golf balls = RM 20
The number of golf balls he could have bought if each ball costs 20 cents less = 5 more balls
Let the number of balls the man bought = x
Let the price of each ball be m
We have;
m × x = 20
(x + 5)·(m - 0.20) = 20
Therefore, we get;
[tex]m = \dfrac{20}{x}[/tex]
Which gives;
[tex]\left(x + 5 \right) \cdot \left(\dfrac{20}{x} - 0.20\right) = 20[/tex]
[tex]-\dfrac{\left(0.2 \cdot x^2- 19 \cdot x - 100\right)}{x} = 20[/tex]
20·x = -0.2·x² + 19·x + 100
0.2·x² + x - 100 = 0
x² + 5·x - 500 = 0
(x + 25)·(x - 20)
x = 20
The number of balls he bought, x = 20 balls
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Tropical Storm Enteng travels 600 miles while Tropical Depression
Gener travels 520 miles at the same time. Find the rate of each if
Enteng’s average rate is 15mph faster than Gener’s.
Solve with distance, rate & time table formula
Answer:
hurricane basics
Step-by-step explanation:
A "hurricane" is the most severe category of the meteorological phenomenon known as the "tropical cyclone."
Tropical cyclones are low pressure systems that have thunderstorm activity and rotate counterclockwise. A tropical
cyclone that has winds of 38 mph (33 kt) or less is called a tropical depression. When the tropical cyclone's winds reach
39-73 mph (34-63 kt), it is called a tropical storm. When the winds exceed 74 mph (64 kt), the storm is considered
to be a hurricane.
The Saffir-Simpson Hurricane Scale defines hurricane strength by categories. A Category 1 storm is the weakest hurricane
(winds 74-95 mph or 64-82 kt); a Category 5 hurricane is the strongest (winds greater than 155 mph or 135 kt).
The category of the storm does not necessarily relate directly to the damage it will inflict. Lower category storms (and
even tropical storms) can cause substantial damage depending on what other weather features they interact with, where
they strike, and how slow they move.
Anatomy of a Hurricane
Typical hurricanes are about 300 miles wide although they can vary considerably in size.
The eye at a hurricane's center is a relatively calm, clear area approximately 20-40 miles across.
The eyewall surrounding the eye is composed of dense clouds that contain the highest winds in the storm.
The storm's outer rainbands (often with hurricane or tropical storm-force winds) are made up of dense bands of
thunderstorms ranging from a few miles to tens of miles wide and 50 to 300 miles long.
Hurricane-force winds can extend outward to about 25 miles in a small hurricane and to more than 150 miles for a large
one. Tropical storm-force winds can stretch out as far as 300 miles from the center of a large hurricane.
Frequently, the right side of a hurricane is the most dangerous in terms of storm surge, winds, and tornadoes.
A hurricane's speed and path depend on complex ocean and atmospheric interactions, including the presence or absence
of other weather patterns. This complexity of the flow makes it very difficult to predict the speed and direction of a hurricane.
Do not focus on the eye or the track–hurricanes are immense systems that can move in complex patterns that are difficult
to predict. Be prepared for changes in size, intensity, speed, and direction.
Hurricane Basics
Answer:
Answer:
hurricane basics
Step-by-step explanation:
A "hurricane" is the most severe category of the meteorological phenomenon known as the "tropical cyclone."
Tropical cyclones are low pressure systems that have thunderstorm activity and rotate counterclockwise. A tropical
cyclone that has winds of 38 mph (33 kt) or less is called a tropical depression. When the tropical cyclone's winds reach
39-73 mph (34-63 kt), it is called a tropical storm. When the winds exceed 74 mph (64 kt), the storm is considered
to be a hurricane.
The Saffir-Simpson Hurricane Scale defines hurricane strength by categories. A Category 1 storm is the weakest hurricane
(winds 74-95 mph or 64-82 kt); a Category 5 hurricane is the strongest (winds greater than 155 mph or 135 kt).
The category of the storm does not necessarily relate directly to the damage it will inflict. Lower category storms (and
even tropical storms) can cause substantial damage depending on what other weather features they interact with, where
they strike, and how slow they move.
Anatomy of a Hurricane
Typical hurricanes are about 300 miles wide although they can vary considerably in size.
The eye at a hurricane's center is a relatively calm, clear area approximately 20-40 miles across.
The eyewall surrounding the eye is composed of dense clouds that contain the highest winds in the storm.
The storm's outer rainbands (often with hurricane or tropical storm-force winds) are made up of dense bands of
thunderstorms ranging from a few miles to tens of miles wide and 50 to 300 miles long.
Hurricane-force winds can extend outward to about 25 miles in a small hurricane and to more than 150 miles for a large
one. Tropical storm-force winds can stretch out as far as 300 miles from the center of a large hurricane.
Frequently, the right side of a hurricane is the most dangerous in terms of storm surge, winds, and tornadoes.
A hurricane's speed and path depend on complex ocean and atmospheric interactions, including the presence or absence
of other weather patterns. This complexity of the flow makes it very difficult to predict the speed and direction of a hurricane.
Do not focus on the eye or the track–hurricanes are immense systems that can move in complex patterns that are difficult
to predict. Be prepared for changes in size, intensity, speed, and direction.
Hurricane Basics
Step-by-step explanation:
Point M is located at (3, -5). Point N is the reflection of point M across the x-axis. What is the distance between M and N? In what quadrant is point N?
Answer:
the point will be (3,5)
will be in the first quadrant
and the distance between the 2 points is 10
hellllllppppppp pleaseeeee
i will mark you brillllllllllllll
?
Answer:
C Pyramid
Hope this helps :)
In a certain year, the average e-mail user sent or received 114 e-mails each day. The number of e-mails received was 6 more then twice the number sent. How many were sent and how many were received each day?
Answer:
78 emails
Step-by-step explanation:
Given
Represent sent emails with x and received with y.
So, we have:
[tex]x + y = 114[/tex] -- First statement
[tex]y = 6 + 2x[/tex] -- Second statement
Required
Determine the number of emails received (y)
Make x the subject in [tex]x + y = 114[/tex]
[tex]x = 114 - y[/tex]
Substitute 114 - y for x in [tex]y = 6 + 2x[/tex]
[tex]y = 6 + 2(114 - y)[/tex]
Open bracket
[tex]y = 6 + 228 - 2y[/tex]
Collect Like Terms
[tex]2y+y = 6 + 228[/tex]
[tex]3y = 234[/tex]
Divide by 3
[tex]y = 234/3[/tex]
[tex]y = 78[/tex]
a 40.5 litre fish tank is 4/5 full. how many more litres will it take to fill the tank
Answer:
Step-by-step explanation:
1-⅘ = ⅕ of the tank remains unfilled
⅕ × 40.5L = 8.1L
A store is having a sale on walnuts and chocolate chips. For 5 pounds of walnuts and 2 pounds of chocolate chips, the total cost is $17. For 3 pounds of walnuts
and 8 pounds of chocolate chips, the total cost is $34. Find the cost for each pound of walnuts and each pound of chocolate chips.
Answer:
Step-by-step explanation:
5w+2c=17
3w+8c=34
2c=-5w+17
c=3.50
w=2
Sara and Laura each have a bag containing 2 blue, 3 red, 4 yellow, and 1 green marble. Sara replaces marbles after each draw. Laura does not replace marbles after each draw. Find the probability of Laura drawing a red and then another red marble.
A.
5/19
B.
9/100
C.
3/10
D.
1/15
Angelina has 5 cakes. She wants to cut them into 2/5 pieces. How many pieces will she be able to cut?
Answer:
12 whole pieces and 12.5 pieces if you don't want a whole answer. :P
Step-by-step explanation:
Do 5 / (2/5) = 5 x (5/2) = 25/2 = 12 1/2 OR 12.5. Again, if you want a whole number, 12 whole pieces.
Hope that helps!
 what is the Quantity in a table graph 
Answer:
The quantity that depends on the other quantity is called the dependent variable, and the quantity it depends on is called the independent variable.
Hope this helps!
Pls help!! MARKING BRAINLIEST!!!
Answer:
1. C
2. D
3. D
4. E
5. B
6. G
7. unknown
Simplify the following:
2m x 8n
Answer:
16mn
Step-by-step explanation:
11. In another country, a road sign reads "80
kilometers to the next gas station". How
far is that distance to the nearest mile?
A 40 mi
C 62 mi
B 50 mi
D 98 mi
please help quick!
9. An internet provider charges an install fee of $59 and a monthly fee of
$109. The total bill was $495. Write an equation to find out how many
months were paid for.
what is the quotient of 6,726 and 19
Answer:
354
Step-by-step explanation:
I'm smart............
1. Tim works as a cook for a food truck at carnivals. He makes $12.00 per hour and worked 36 hours this
weekend. How much did he earn this weekend?(Make sure you use a dollar signs and decimals for cents o
all questions.)
Answer:
$432.00
Step-by-step explanation:
12 x 36 = 432
John removed 64 fish from his pond over a period of 8 days. He removed the same number of fish each day. What was the change in the number of fish in the pond each day?
What are two fractions between 1/2 and 1?
Answer:
3/4 and 10/12
Step-by-step explanation:
can i get brainliest please???
it would be very much appreciated
have a nice day :)
What is the answer??????????????
eighty-one
is to nine Forty-nine is to
What is the value of b in a quadratic equation when the vertex is (1,4.5)?
48.9 is 58% of what number?
Answer:
84.48
Step-by-step explanation:
Formula = Number x 100
Percent = 49 x 100
58 = 84.48
Hep me please this is to much
Answer:
its B
Step-by-step explanation:
hope it helps
Answer:
B. 6 x 0.8
Step-by-step explanation:
It depends on the placement of the decimal point. All of the answers have 6 x 8. It's just that the decimal points are in different places each time.
For example, option A, is 6 x 8, which is 48. 48 is not equal to 4.8.
Option B, however, has 6 x 0.8. 6 x 8 = 48, and divided by 10 is 4.8. 4.8 = 4.8. This means Option B is correct.
Hope this helps :)
A serving of four home baked chocolate chip cookies weigh 50 grams and contains 12 grams of fat. What is the ratio in lowest terms of fat grams to total grams?
Answer:
Good luck
Step-by-step explanation:
(50) half it
(25) (25)
(12) (12)
(12.5) (12.5) (12.5) (12.5)
(12) (12) (12) (12)
0.5 + 0.5 + 0.5 + 0.5 = 2 (0.5= 1/2 or 0.5 or 0.50)
more examples: (2/4) (3/6) (4/8) (5/10)
So you are gonna have four holes and two twelves
(12/12) (12/12) (12/12) (12/12) (2/12)
The ratio of fat to total weight in the lowest form is 25 : 6.
What are ratio and proportion?A ratio is a comparison between two similar quantities in simplest form.
Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.
In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.
Given, Four Home-baked chocolate chip cookies weigh 50 grams and contain 12 grams of fat.
We know a/b can be written in ratio form as a : b.
∴ Fat/Total weight = 50/12.
Fat/Total weight = 25/6.
Fat : Total weight = 25 : 6.
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Find the second derivative of the function.
Answer
The second derivative of an implicit function can be found using sequential differentiation of the initial equation F(x,y)=0. At the first step, we get the first derivative in the form y′=f1(x,y). On the next step, we find the second derivative, which can be expressed in terms of the variables x and y as y′′=f2(x,y).
help please will give a thanks !!
Answer:
7/9, -0.3, 11/2
Step-by-step explanation:
Answer:
7/9, -0.3, 11/2
Step-by-step explanation: