Answer:
relation
Step-by-step explanation:
First of all, all functions are relations, but not all relations are functions.
A function is a relation where one element in the domain is paired exactly with one element of the range.
A relation assigns one element of the domain to one or more elements of the range.
The range is any set of ordered pairs, while the function is a set where the group of pairs do not share the same first coordinate.
At 3:30 p.m., Berto’s train was 34 miles past the egg farm, traveling at an average speed of 85 miles per hour. At the same time on a nearby track, Eduardo’s train was traveling at an average speed of 110 miles per hour and had 12 miles to go before it reached the egg farm. To the nearest hundredth of an hour, after how much time will the trains meet up?
E=egg farm
x=distantce between the Berto´s trains and the meeting point.
t=time where the trains meet up
⇒110 miles/h ⇒85miles/h
[---------------------------E----------------------]-------------------------------------X
[............12 miles.......][........34 miles.....][------------ x ----------------------]
distance between Berto´s train and Eduardo´s train=
=12 miles+34 miles=46 miles.
S=d/t ⇒d=S*t
S=seed
d=distance
T=time
Eduardo´s train;
46 miles+x=t*110 miles/h ⇒x=t*110 miles/h-46 miles (1)
Berto´s train;
x=t*85 miles/h (2)
With the equations (1) and (2) we suggest this system equations:
x=t* 110 miles/h-46 miles
x=t*85 miles/h
we solve this system equiations :
t*110 miles/h-46 miles=t*85 miles/h
110t miles/h-85t miles/h=46 miles
25 t miles/h=46 miles
t=46 miles/25 miles/h=1,84 hour (≈1 hour, 50 minutes, 24 seconds)
x=t*85 miles/h=156,4 miles
Solution: 1,84 hour
Answer:
1.84
Step-by-step explanation:
I did it on edge it was correct
What is the missing number?
45/9 = 12 - ?
Answer:
7
Step-by-step explanation:
45/9 = 5
12 - 7 = 5
68. A table top and the floor are a model of parallel planes.
a. True
b. False
Answer:
true
Step-by-step explanation:
True the table top can go on forever without touching the floor.
Dont know what to do.
9514 1404 393
Answer:
512 million
Step-by-step explanation:
Expected value is the sum of the products of probability and the value associated with that probability. Here, it is the sum ...
0.4(390) +0.4(890) +0.2(0) = 512 . . . million
The expected value of the loss over a 5-year period is $512 million.
Anthony is laying concrete for a driveway. The driveway is to be 24 feet long by 11 feet wide by 8 inches deep. Answer parts (a) through (c)
(a) Determine the volume of concrete needed in cubic feet.
(b) If 1 cubic yard = 27 cubic feet, how many cubic yards of concrete are needed?
(c) If the concrete costs $36 per cubic yard, what is the cost of the concrete? Concrete must be purchased in whole cubic yards
Answer:
a) The volume of concrete needed in cubic feet is 2,112. b) The number of cubic yards of concrete needed in cubic yards is about 79. c) The cost of the concrete using cubic yards is $2,844.
Step-by-step explanation:
a) The formula of the volume is l*w*d. 24 * 11 * 8 = 264 * 8 = 2,112.
b) The way to find this is that you take 2,112 and divide it by 27. Since the answer is 78.2 repeating, you round it up to 79 so it will fill up all of the concrete.
c) Since you need 79 cubic yards of concrete, you do 79 multiplied by $36 to get the total cost of $2,844.
Stephen goes to the fair and buys two funnel cakes and one drink. His total bill is $6.75. A few days later, he goes with a friend and buys three funnel cakes and two drinks. This time his total bill is $11.
Write two equations that could be used to determine how much each funnel cake and drink costs. Use f for the cost of a funnel cake and d for the cost of a drink.
What is the cost of a funnel cake?
What is the cost of a drink?
Answer:
Let's define the variables:
f = Cost per cake
d = Cost per drink.
"Stephen goes to the fair and buys two funnel cakes and one drink. His total bill is $6.75. "
2*f + 1*d = $6.75
"A few days later, he goes with a friend and buys three funnel cakes and two drinks. This time his total bill is $11."
3*f + 2*d = $11.
Then we have a system of equations:
2*f + 1*d = $6.75
3*f + 2*d = $11.
To solve this, the first step is to isolate one of the variables in one of the equations, let's isolate d in the first equation:
d = $6.75 - 2*f
Now we can replace this in the other equation:
3*f + 2*($6.75 - 2*f) = $11
3*f - 4*f + $13.50 = $11
-f = $11 - $13.50 = -$2.50
f = $2.50
Then the cost of a funnel cake is $2.50
And the cost of a drink can be obtained with the equation:
d = $6.75 - 2*f = $6.75 - 2*$2.50 = $1.75
The cost of a drink is $1.75
A real estate agent works on a 10% commission. What is her commission on a house that she sold for $443,700? Follow the problem-solving process and round your answer to the nearest cent, if necessary.
Answer:
$44,370
Step-by-step explanation:
$443,700 * 1/10 = $443,700/10 = $44,370
She made $44,370 off the commission
In the number 3.072 the digit 7 is in the ? place and the digit 2 is in the ? place.
Answer:
7= Hundredths
2=Thousandths
The required place of 7 and 2 in the given decimal value is the hundredth and thousandth.
Given that,
In the number 3.072 the digit 7 is in the place and the digit 2 is in the is to be determined.
Decimal value is defined as showing the place value of the digits in a decimal number. If any proportion of the digit is lower than 1 it would be represented after the dot right to the absolute value,
Here,
Given decimal value = 3.072
Where after the decimal point 0 is at tenth position, 7 is at hundredth position and 2 is at thousandth positions.
Thus, The required place of 7 and 2 in the given decimal value is the hundredth and thousandth.
Learn more about decimal values here,
brainly.com/question/19802955
#SPJ2
A scale drawing of a car is presented in the following three scales. Order the scale drawings from smallest to largest. (There are about 1.1 yards in a meter, and 2.54 cmon an inch.)
Answer:
22
5 THOPE I GOT IT RIGHT
Step-by-step explanation:hn
Find the value of the expression 2x – 3y + 4z, if x = 10, y = -12 and z = 11.
Answer:
210
Step-by-step explanation:
=2x-3y+4z
=2×10-3×(-12)+14×11
=20+36+154
210
The value of expression is 210.
What is an Expression?
An expression is a mathematical statement which consists of variables, constants and mathematical operators.
The expression is 2x – 3y + 4z
The value of the expression 2x – 3y + 4z, if x = 10, y = -12 and z = 11 is
=2x-3y+4z
=2×10-3×(-12)+14×11
=20+36+154
210
To know more about Expression
https://brainly.com/question/14083225
#SPJ2
Which triangles are congruent by ASA? *
Answer:
The correct answer is B. ΔVTU and ΔABC
Step-by-step explanation:
I took the test hope this helps :)
could you plz answer these questions plzzzzzzzz
Answer:
11. 74
12. 8.5
13. 194
14. 56
15. the second one so 30.5 is more expensive
16. Manju walked further
Step-by-step explanation:
11. perimeter so add all the sides together
oh they are all perimeter so add the two numbers in each problem and then multiply that number by 2
60 vs 122 so the 30.5 is more expensive
280 vs 288 so manju walked more
brainliest would be greatly appriciated! Thanks!
Sally wants to buy an assortment of candy. She has $7 dollars she can spend in the candy store. The candy store sells chocolate bars, lollipops, and gumballs at the prices shown below. Chocolate bars cost $1.50 per bar. Lollipops cost $0.75 per lollipop. Gumballs cost $0.25 per gumball. Sally wanted to find the cost of combinations of candies she could buy. Enter the cost, in dollars, of each candy assortment in the table.
Answer:
I found the table by an online search (it is below)
Sally has $7 to spend in candy.
The price of a chocolate bar is $1.50
The price of a lollipop is $0.75
The price of gumballs is $0.25
In the table, we have the following combinations.
a) 3 chocolate bars, 3 lollipops and 4 gumballs, the price is:
3*$1.50 + 3*$0.75 + 4*$0.25 = $7.75 (she can not buy this)
b) 3 chocolate bars and 4 gumballs, the price is:
3*$1.50 + 4*$0.25 = $5.50 (she can buy this)
c) 1 chocolate bar, 5 lollipops and 2 gumballs, the price is:
1*$1.50 + 5*$0.75 + 2*$0.25 = $5.75 (she can buy this)
d) 2 chocolate bars, 2 lollipops and 8 gumballs, the price is:
2*$1.50 + 2*$0.75 + 8*$0.25 = $6.50 (she can buy this)
Find the 7th term of the geometric sequence –4, 12, –36, 108, –324,...
a
–2,916
b
972
c
8,748
d
–2,920
Answer:
a
Step-by-step explanation:
a=-4 r=12/-4=-3
T7= ar^n-1
= (-4)(-3)^7-1
=-2916
The first term of this geometric sequence is equal to: A. -2916.
How to calculate the 7th term of a geometric sequence?Mathematically, a geometric sequence is given by this expression:
[tex]a_n =a_1r^{n-1}[/tex]
Where:
r is the common ratio.a is the first term of a geometric sequence.Based on the geometric sequence, the first term is equal to -4. Also, the common ratio is given by:
r = 12/-4
r = -3.
For the 7th term, we have:
a₇ = -4 × (-3)⁷⁻¹
a₇ = -4 × (-3)⁶
a₇ = -4 × 729
a₇ = -2916.
Read more on geometric sequence here: brainly.com/question/12630565
#SPJ2
Can someone tell me if I’m correct if not what should I change I will mark brainliest
Answer:
-8, 8, 25, -25
Step-by-step explanation:
Your answers are correct! :)
-The sum of two numbers is less than 10
-If we subtract the second number from the first, the difference is greater then 3
Write a system of inequalities that represents this situation. Let f represent the first number and s represents the second number.
Type the answer below
Answer:
A and C r the answers
Re-write the equation in slope-intercept form: 5x + 4y = 20
Answer:
y=5-5/4x
Step-by-step explanation:
slope-intercept form: y=mx+b (m= slope, b= y-intercept)
5x + 4y = 20
4y=20-5x
simplify
y=5-5/4x
6 minus twice a number
Answer:
6-2x
Step-by-step explanation:
what is the anwser to 22.4 x17.82
Answer:
3399.168
Step-by-step explanation:
Answer:
399.168
Step-by-step explanation:
In the triangle shown, let AB = DE, BC = EF, and CA = FD. Use Rigid Motions to show (triangle)ABC onto (triangle) DEF.
Answer:
Step-by-step explanation:
Given: AB≅DE, BC≅EF, CA≅FD
Since those are the given it is maped A to D, B to E, C to F
This is a rigid transformation because the distance is preserve (givens) and the triangle ABC is map to triangle DEF.
Rigid transformations produce congruent figures so triangle ABC is congruent to triangle DEF
The Scott family stayed at a hotel forn nights. The cost was $80 per night plus a one-time
fee of $20 because they brought their dog. Which expression represents the total cost of
their hotel stay?
a. 80n + 20n
b. 80 + 20n
C. 80n + 20
d. 80 + 20+ n
Answer:
I am not totally sure, but I think the answer is D.
L1 and L2 are two straight lines. The origin of the coordinate axes is O. L1 has equation 5x + 10y = 8 L2 is perpendicular to L1 and passes through the point with coordinates (8, 6) L2 crosses the x-axis at the point A. L2 intersects the straight line with equation x = –3 at the point B. Find the area of triangle AOB. Show your working clearly.
Answer:
40 sq units
Step-by-step explanation:
[tex]5x + 10y = 8\\\Rightarrow y=\dfrac{8-5x}{10}\\\Rightarrow y=-\dfrac{1}{2}x+\dfrac{2}{5}[/tex]
Slope of [tex]L_2[/tex] is [tex]m_2[/tex]
[tex]m_1m_2=-1\\\Rightarrow m_2=-\dfrac{1}{m_1}\\\Rightarrow m_2=-\dfrac{1}{-\dfrac{1}{2}}\\\Rightarrow m_2=2[/tex]
[tex]L_2[/tex] passes through point [tex](8,6)[/tex]
[tex]y-6=2(x-8)\\\Rightarrow y=2x-16+6\\\Rightarrow y=2x-10[/tex]
Point at x axis where [tex]L_2[/tex] intersects is
[tex]0=2x-10\\\Rightarrow x=\dfrac{10}{2}\\\Rightarrow x=5[/tex]
Point [tex]A[/tex] of the triangle will be [tex](5,0)[/tex]
[tex]L_2[/tex] intersects line [tex]x=-3[/tex]. The point is
[tex]y=2\times(-3)-10\\\Rightarrow y=-6-10\\\Rightarrow y=-16[/tex]
The points of the triangle are [tex]A(5,0), O(0,0), B(-3,-16)[/tex]
Area of triangle is given by
[tex]A=\dfrac{|A_x(B_y-O_y)+B_x(A_y-O_y)+O_x(A_y-B_y)|}{2}\\\Rightarrow A=\dfrac{|5(-16-0)+-3(0-0)+0(0-(-16))|}{2}\\\Rightarrow A=40\ \text{sq units}[/tex]
The area of the triangle is 40 sq units.
what do i need to subtract from 83/10 to make 8
Answer:
0.3
Step-by-step explanation:
Let x be what you need to subtract
[tex]\frac{83}{10} = 8.3[/tex] Plug x in: 8.3 - x = 8Re-arrange: 8.3 - 8 = x8.3 - 8 = 0.3So, you need to subtract 0.3 from 83/10 to make 8.I hope this helps!
Answer:
3/10
Step-by-step explanation:
83/10 - 3/10 = 80/10 = 8
(I need help quick this assignment is due today)what is 421.53 in expanded form? I will give you 11 points.
Answer:
Expanded Notation Form:
421.53 =
400
+ 20
+ 1
+ 0.5
+ 0.03
Expanded Factors Form:
421.53 =
4 × 100
+ 2 × 10
+ 1 × 1
+ 5 × 0.1
+ 3 × 0.01
Expanded Exponential Form:
421.53 =
4 × 102
+ 2 × 101
+ 1 × 100
+ 5 × 10-1
+ 3 × 10-2
Word Form:
421.53 =
four hundred twenty-one and fifty-three hundredths
Step-by-step explanation:
Answer:
Step-by-step explanation:
400
+ 20
+ 1
+ 0.5
+ 0.03
Substitute u = 26 into u + 34 to find the value of the left-hand side of the equation
Answer:
60
Step-by-step explanation:
The answer is 60 because the equation u = 26 tells us u is 26
So we can plug in 26 into u + 34
It should look like this 26 + 34 and it equals 60
pls mark brainliest
On a street , there are 25 houses, of which 12 have a cat and 4 have both a cat and a dog. If a house has a cat, what is the probability that there is also a dog living there?
Answer:
50 percent
Step-by-step explanation:
A certain game consists of rolling a single fair die and pays off as follows: $5 for a 6, $3 for a 5, 51 for a 4, and no payoff otherwise. Find the expected winnings for this game.
Answer:
The expected winning is + $2.17
Step-by-step explanation:
Here, we want to calculate the expected winnings for the game
The number of possible results are;
1,2,3,4,5,6
Probability of each value is 1/6
So expected pay off is as follows;
1/6(5) + 1/6(3) + 1/6(5) + 0
= 5/6 + 3/6 + 5/6
= 5/6 + 5/6 + 1/2 + 0
= 10/6 + 1/2 = 5/3 + 1/2 = (10 + 3)/6 = 13/6 = 2.1667
PLEASE HELP ILL GIVE BRAINLIAST
CD is the perpendicular bisector of AB.
AD = 6x – 2 and DB = 2x + 18.
Determine the value of x.
x = [ ? ]
A.
D
B.
Enter
Answer:
Step-by-step explanation:
48-5+ 2x -7 -54 ABE 39. - x=2. 66 - 12 = 54. BC, 15. AB=5 =BC. 6x = 66. - They are. XH. Not. 2) Find the coordinates of the midpoint of the segment with the given endpoints. ... j) Concurrency of Perpendicular Bisectors of a Triangle Theorem: ... Find AE. 40. Find AD. 76. 76. Sy + 20. Find BC. 54. Find AC. 80. Find CD. 76.
Answer right and I’ll give you brainliest
12% of ___ shirts is 36 shirts
Answer: 3
Step-by-step explanation:
Answer:
300 shirts
Step-by-step explanation:
You can divide 12% by itself to find one percent, then divide the 36 shirts by 12 as well.
What you do to one side, you need to do to the other.
Now that we have our numbers after dividing (you should have 1% and 3 shirts) you can see what 100% would be. To do this you would multiply 1% by 100 and multiply 3 shirts by 100.
Now we know that 12% of 300 shirts is 36 shirts.