Answer:
the mistake they made was the wrong offset from point (0,0) into the y direction. the incline of the line was correct.
the correct equation is y = 1/2×x - 2, because this line contains both points (4,0) and (0,-2)
Step-by-step explanation:
we are looking for a line equation
y = a×x + b
the 2 points give us 2 equations to solve for the 2 variables a and b :
0 = a×4 + b
-2 = a×0 + b
=> b = -2
=> -b = a×4, => a = -b/4 = 2/4 = 1/2
so, the right equation for the line going through both points is
y = 1/2×x - 2
the difference to the original equation is simply the offset from the x- axis in the y direction.
the original equation would be parallel to the correct equation but hit the y-axis at (0,4) instead of (0,-2), and it would hit the x-axis at (-8,0) instead of (4,0)
(9x2 + 9x2 + 5x + 1) = (3x+1)
A. 3x²+2x-2
B. 3x2 + 3x + 1
C. 3x2-3x-1
D. 3x2 + 2x+1
Answer:
2(13x – 7)
Step-by-step explanation:
Find f(-6)
FINAL EXAM PLEASE HELPPPP
f(-6) = 5
Just look at the graph when x= -6 , y = 5
Answer:
Step-by-step explanation:
See image -->Answer
Can someone please help me with this, it’s urgent!!
Answer:
B n D
Step-by-step explanation:
Sue’s bakery sold 850 donuts last week this week the number of donuts sold increase 12% how many more donuts were sold this week
Answer:
952
Step-by-step explanation:
If you have anything else that has to do with donuts it goes straight to me.
Answer:
102 more donuts
Step-by-step explanation
when dealing with how much percent increase you multiply the amount by the percent in decimal form . So 850x0.12 is 102.
Helen rented a kayak at the lake. There is a charge of $10 as an initial fee and then $2 an hour for every hour that she uses the kayak. If the total charge is $22 , how many hours did she kayak?
Answer:
She kayaked for 6 hours.
Step-by-step explanation:
If $10 is the initial fee, subtract $22 - $10 = $12.
If it charges $2 per hour, divide $12 by $2 which equals 6 hours.
Answer:
6 hours
Step-by-step explanation:
Cost = fee + charge per hour * number of hours
22 = 10 +2h
Subtract 10 from each side
22-10 = 10+2h-10
12 = 2h
Divide
12/2 = 2h/2
6 = h
25. Find the value of x. *
2 points
450
412
X
MathBits.com
450
O 2
0 212
0.4
04.12
help very easy 5th grade math im in rush please help im very tired tell me how many x’s to put in each box.
Answer:
Step-by-step explanation:
none in the first 3 box
none in the second 3 boxes
2 in the third 3 boxes
1 in the 4th three boxes
1 in the 5th three boxes
3 in the 6th three boxes
and none in the last 3 boxes
hope this helped :D
HELP ME PLEASEEE
[WILL GIVE BRAINLIEST TO TOP ANSWER]
Answer:
C) 157 [tex]cm^3[/tex]
Step-by-step explanation:
[tex](3.14)5^2*6/3= 157[/tex][tex]cm^3[/tex]
Hope this helped! :)
SOMEONE HELP ME PLEASE
How many people worked in service jobs?
A. 1,898.40
B. 18,984
C. 189,840
D. 1,898,400
E. 18,984,000
Answer:
number of people work in service jobs
[tex]949 \: 200 \times \frac{20}{100} \\ 189 840[/tex]
answer is option C
a²+b²+c²=138 and ab +bc+ca=3, Find a+b+c
[tex]a ^{2} + b {}^{2} + c { = 138} and \: ab + bc + ca \: find \: a + b + c[/tex]
ans pls?
Answer:
a + b + c = 12
Step-by-step explanation:
The given information are;
a² + b² + c² = 138
a·b + b·c + c·a = 3
The required data = a + b + c
Using an online tool, we have;
(a + b + c)² = (a + b + c) × (a + b + c) = 2·a·b + 2·b·c + 2·c·a + a² + b² + c²
∴ (a + b + c)² = 2·(a·b + b·c + c·a) + (a² + b² + c²)
Where;
a·b + b·c + c·a = 3, and a² + b² + c² = 138, we have;
(a + b + c)² = 2 × 3 + 138 = 144
(a + b + c)² = 144
(a + b + c) = √144 = 12
a + b + c = 12.
Please help! Need answer asap
Answer:
h > 2 or h < 1
Step-by-step explanation:
|2h-3| >1
Solve 2 inequalities
2h-3 > 1 or 2h-3 < -1 (remembering to flip the inequality for the negative solution)
2h-3 > 1 or 2h-3 < -1
Add 3 to each side
2h-3+3 > 1+3 or 2h-3+3 < -1+3
2h>4 or 2h < 2
Divide by 2
2h/2>4/2 or 2h/2 < 2/2
h > 2 or h < 1
can someone help me asap pls :)
Answer:
Step-by-step explanation:
James is using cement to make a new sidewalk and new steps.
Part A
He will make a new rectangular sidewalk that is 8 feet long, 4 feet wide, and 0.25 foot thick.
What is the volume, in cubic feet, of the cement used to make the sidewalk? Show or explain all of the steps you used to determine your answer.
Part B
This diagram shows James’s design for the steps. The height of each step will be 6 inches. All angles in the diagram are right angles.
I need it now please!
The volume, of the cement used to make the sidewalk is 8 ft³
What is volume?Volume is defined as the space occupied within the boundaries of an object in three-dimensional space. It is also known as the capacity of the object.
Given that, James is using cement to make a new sidewalk and new steps,
He will make a new rectangular sidewalk that is 8 feet long, 4 feet wide, and 0.25 foot thick.
Volume = length x width x height
Volume = 8 x 4 x 0.25 = 8 ft³
Hence, the volume, of the cement used to make the sidewalk is 8 ft³
Learn more about volumes, click;
https://brainly.com/question/1578538
#SPJ1
Equation practice with angle addition
Answer:
m<BOC = 60°
Step-by-step explanation:
First, we will need to determine the value of x
m<BOC + m<AOB = m<AOC (angle addition postulate)
Substitute
9x + 42 + 7x + 30 = 104
Collect like terms
16x + 72 = 104
16x + 72 - 72 = 104 - 72
16x = 32
x = 32/16
x = 2
✔️m<BOC = 9x + 42
Plug in the value of x
m<BOC = 9(2) + 42
m<BOC = 18 + 42
= 60°
Help
Will give
Brainlist
:))).
8. An car can hold 8 1/4 gallons of fuel. It contains 4 5/6 gallons of fuel. How
much more fuel is needed to fill the car?
Answer:
3 5/12
Step-by-step explanation:
Answer:
41/12 gallons
= 3 5/12 gallons
Step-by-step explanation:
Since it can hold 8 1/4 gallons and currently has 4 5/6 gallons, you subtract.
You need to get the common denominator to subtract cleanly so we can turn the fractions into improper fractions.
8 1/4 = 33/4 because 8 is equal to 8 full 4/4ths so multiply 8 by 4 and add 1 for the remaining 1/4.
Then 4 5/6 becomes 29/6 with the same concept earlier.
So we can change the denominator to 12 on both fractions (33/4 and 29/6) so we can subtract.
33/4 becomes 99/12 because they are still equivalent, it's just that you multiplied the top and bottom by the same number.
29/6 becomes 58/12 because we multiplied the fraction by 2/2.
Those two new fractions stated previously are the same as the original because we multiplied them by 1/1, because 3/3 and 2/2 is still equal to 1/1, and the new fractions can be simplified down to the original.
Since we have 99/12 and 58/12, we can subtract cleanly into
99 - 58 = 41
So the answer is 41/12
Please help!! Find the scale factor dilation
Answer:
2
Step-by-step explanation:
take any point
i am taking F
coordinate of F is (5 , 3)
F' is (10,6)
so use formula
(x , y) = (kx , ky)
(5 , 3) = (5k , 3k) = (10 , 6)
compare corresponding elements
5k = 10
k = 10/5
k = 2
3k = 6
k = 6/3
k = 2
note here k means scale factor
The height, h metres, of a springboard diver above the surface of the water t seconds after she leaves the board is given by h=-5t-12+7. Find the maximum height reached by the diver? How long does it take for the diver to reach maximum height? Find the height of the diving board?
Answer:
[tex]h_{max} = 14.2m[/tex]
[tex]t = 1.2[/tex]
The height of the diver is 7m
Step-by-step explanation:
Given
[tex]h(t) =-5t^2 + 12t + 7[/tex]
Solving (a): The maximum height reached
First, we calculate the time to reach the maximum height using:
[tex]t = - \frac{b}{2a}[/tex] --- maximum of a function
Where
[tex]a = -5; b = 12; c = 7[/tex]
So, we have:
[tex]t = -\frac{12}{-2 * 5}[/tex]
[tex]t = \frac{12}{10}[/tex]
[tex]t = 1.2[/tex]
So, the maximum height is:
[tex]h(t) =-5t^2 + 12t + 7[/tex]
[tex]h(1.2)=-5 * 1.2^2 + 12 * 1.2 + 7[/tex]
[tex]h(1.2)=14.2[/tex]
Hence:
[tex]h_{max} = 14.2m[/tex]
Solving (b): Time to reach maximum height
This has been calculated in (a)
[tex]t = 1.2[/tex]
Solving (c): Height of the board.
This can be calculated by setting [tex]t =0[/tex] --- i.e. the height of the diver before diving
So, we have:
[tex]h(t) =-5t^2 + 12t + 7[/tex]
[tex]h(0) = -5 * 0^2 + 12 * 0 + 7[/tex]
[tex]h(0) = 7[/tex]
If U = {1, 3, 5, 7, 9, 11, 13}, then which of the following are subsets of U.
A = {0}
B = {2, 4}
C = {1, 9, 5, 13}
D = {2, 3, 4, 5}
Answer:
C
Step-by-step explanation:
It is C because members in the set C can be found in the universal set (U)
Last week, Jamal bought 11 pizzas and 11 cakes for a total of
$198.
Today, Jamal bought 10 pizzas and 9 cakes for a total of $171.
Assuming neither item has changed in price, what is the cost
of a pizza in dollars?
Answer:
$9.00 is the cost per pizza.
Step-by-step explanation:
Jamal wildin'
calcula la longitud de la variable "x"
Answer:
La longitud de [tex]x[/tex] es [tex]5\sqrt{2}[/tex] unidades.
Step-by-step explanation:
La figura es un cuadrado atravesado por una diagonal, significando que existen dos triángulos rectángulos, cuyos ángulos interiores son 45°, 45° y 90°, respectivamente. Por Geometría Euclideana, tenemos que la longitud de la hipotenusa es igual a [tex]\sqrt{2}[/tex] veces la longitud de cualquiera de sus catetos:
[tex]x = \frac{10}{\sqrt{2}}[/tex]
[tex]x = 5\sqrt{2}[/tex]
La longitud de [tex]x[/tex] es [tex]5\sqrt{2}[/tex] unidades.
See image for question. Show workings
Answer:
#85 men and 2 women = 7 people with no restriction
7P7 = 7!a) Two women must sit next to each other:
2!*5! = 2*120 = 240b) The two women must not sit next to each other:
7! - 2!5! = 4800#93 men and 5 women with no restriction:
8P8 = 8! = 40320The faces on a number cube are labled 1,2,2,3,4, and 5the number cube is rolled 114 times how many times would you expect the number 2 to apper
Given:
The faces on a number cube are labeled 1,2,2,3,4, and 5.
The number cube is rolled 114 times.
To find:
How many times would you expect the number 2 to appear?
Solution:
We have,
Total outcomes = 1,2,2,3,4, and 5.
Number of total outcomes = 6
Favorable outcomes = 2 and 2
Number of favorable outcomes = 2
The probability of getting 2 is:
[tex]P(2)=\dfrac{\text{Number of favorable outcomes}}{\text{Number of total outcomes}}[/tex]
[tex]P(2)=\dfrac{2}{6}[/tex]
[tex]P(2)=\dfrac{1}{3}[/tex]
Now, the expected number of times when 2 to appear is:
[tex]E(x)=114\times P(2)[/tex]
[tex]E(x)=114\times \dfrac{1}{3}[/tex]
[tex]E(x)=38[/tex]
Therefore, the expected number of times is 38.
Jacob travelled 708 km on a bus in 8 hours. Alissa travelled 496 km on a
train in 5 hours. What was the speed per hour of the faster vehicle?*
99.2 km/h
62.0 km/h
141.6 km/h
88.5 km/h
Answer:99.2
Step-by-step explanation:
Speed = distance÷time
496÷5=99.2
A banquet room is being carpeted. A floor plan of the room is shown below. Each unit represents 1 yard. The carpet costs $23.50 per square yard. How
much will is cost to carpet the room?
Area of the parallelogram -
square yards
Area of the rectangle =
square yards
Are of the triangle =
square yards
Area of the floor
square yards
Total cost of the carpet = 5
Answer: $775.50
explanation: I just looked it up and another website had the same question but also had the answer
Can someone help me please
Answer:
Here you go
Step-by-step explanation:
BTW what is meant by point in the last blank?
Answer:
equation y = 3x-1
slope = 3
about the point blank I'm not sure what it is asking for
which number is addtive inverse of 5
Answer:
-5
Step-by-step explanation:
Additive inverse is basically the opposite of the given number. So the additive inverse of 5 is -5.
Hope this will help. Please mark me brainliest.
Answer:
- 5
Step-by-step explanation:
The additive inverse is the number added to 5 to give zero, that is
5 + (- 5) = 5 - 5 = 0
Additive inverse is - 5
3) Ming and Amanda are selling pies for a school fundraiser. Customers can buy blueberry pics and lemon meringue pies. Ming sold i blueberry pie and 3 lemon meringue pies for a total of $66. Amanda sold 4 blueberry pies and 6 lemon meringue pies for a total of $150. Find the cost each of one blueberry pie and one lemon meringue pie.
-2/3 × -7/5
please answer... i will follow the person who hives the ryt answer
Answer:
14/15 :]
Step-by-step explanation:
you dont have to follow me buts its appreciated!
Find the value of x in the picture below. (Figure is not drawn to scale)