Answer:
y = (x - 2)² - 9
Step-by-step explanation:
Using the method of completing the square
add/ subtract ( half the coefficient of the x- term)² to x² - 4x
y = x² + 2(- 2)x + 4 - 4 - 5
y = (x - 2)² - 9
It takes Chris 30 minutes to walk to work. If he drives, it takes him 1/3 of that time.
What is the latest time that Chris can leave to drive to work and arrive by 8:00?
Answer:
7:50
Step-by-step explanation:
cause.....
30/3=10
8:00- 10 min = 7:50
Greg uses a triangular area of his back yard as a garden.If the area if his garden 1.248 square feet,whats the area of the garden?
Answer:
192 ft²
Step-by-step explanation:
Area of rectangular backyard = 1248 ft²
Width of backyard = 52 ft
Length = x
Area of rectangular backyard = Length * width
1248 = x * 52
x = 1248 / 52
x = 24 feets
Hence, x = height of triangular garden
Area of triangle = 1/2 base * height
Area = 1/2 * 16 * 24
Area = 192 ft²
PLEASE ASAP ILL GIVE BRAINLIEST.
Answer:
A basket ball being held
Step-by-step explanation:
Hope this helps you out
Someone please help 20 points!
please help me PLEASE
Answer:
The answers are A, B and C.
Step-by-step explanation:
To solve the inequality you first have to use Distributive Property. You should get -3k + (-21) > -57
Next Divide 21 on both sides. -57/21 is -36
You should have -3k > -57
Divide -3 on both sides. -57/-3 is 12
You should end up with k > 12
And you never used -5, 0 or 8 in the equation and the question asks to choose the following that isn't included in the solution so your answers are A, B and C.
Hope This Helps! ^^
PLLLLLLLS HELP WILL GIVE BRAILEST 20 POINTS
colby is standing next to a water tower, he is 6ft tall and casts a 3 foot shadow.
if the water tow cast a 60 foot tall shadow, how tall is the tower?
30
120
180
240
Answer:
the water tower casts 60 ft shadow its 120 ft tall
Step-by-step explanation:
Answer:
180 I hope this is the correct answer
use the inverse operation to solve the following equation w + 125.2 = 255
Answer:
w=129.8
Step-by-step explanation:
w + 125.2 = 255
-125.2
w=225-125.2
w=129.8
Answer:
Hope this helps please mark me as branlist.
Step-by-step explanation:
Subtract 125.2 from both sides:
w=125.2=255
w=125.2-125.2=255-125.2
w=255-125.2
w=129.8
HELP!!!!! PLEASE AND THANK YOU
Answer:
The 3rd one is correct
(7.5 + 3) x 6 - 4)
Carmen is putting together a business plan for her sandwich restaurant, Subs Away, so she can expand to another location. She wants to include some information about recent sales but only has certain information about last month's sales. She currently offers ham, turkey and vegetarian sandwiches. She sells the ham sandwiches for $10 each and the turkey sandwiches for $11.25. Answer key
Complete Question
Carmen is putting together a business plan for her sandwich restaurant, Subs Away, so she can expand to another location. She wants to include some information about recent sales but only has certain information about last month's sales. She currently offers ham, turkey and vegetarian sandwiches. She sells the ham sandwiches for $10 each and the turkey sandwiches for $11.25.
Last Month's Vegetarian Sales
Total Sandwiches Sold 75
Total Income $712.50
How much does Carmen charge for the vegetarian sandwich?
Answer:
[tex]X=9.5[/tex]
Step-by-step explanation:
From the question we are told that:
Total Vegetarian Sandwiches Sold [tex]T_{vs}=75[/tex]
Total Vegetarian Sandwiches Income [tex]T_{vi}=$712.50[/tex]
Generally the equation for Cost of vegetarian sandwich is mathematically given by
[tex]X=\frac{Total\ income\ from\ vegetarian\ sandwich}{No.\ of\ vegetarian\ sandwich\ sold}[/tex]
[tex]X=\frac{T_{vi}}{T_{vs}}[/tex]
[tex]X=\frac{712.50}{75}[/tex]
[tex]X=\$9.5[/tex]
What is the surface area of this composite solid?
Use 11.3 meters for the slant height of the triangular prism.
Enter your answer in the box.
__m²
Composite made up of a rectangular prism surmounted by a triangular prism. The rectangular prism has dimensions of 16 meters wide by 20 meters long by 12 meters high. The triangular prism has dimensions of 16 meters wide by 20 meters long with a triangular altitude of 8 meters high.
Answer:
1764 m²Step-by-step explanation:
Refer to attached picture.
All given dimensions are given on the picture (not to scale).
Since altitude of the triangle and slant height is given, we can find the base of the triangle using Pythagorean:
[tex]b/2 = \sqrt{11.3^2-8^2} = \sqrt{64} = 8m, \\b = 16 m[/tex]It has 9 faces and the total surface area is:
S = 16*20 + 2(20*12) + 2(20*11.3) + 2(16*12) + 2(1/2*8*16) = 1764 m²Which of the following lists is in order from smallest to largest?
0.2, 0.05, 0.48, 0.6
0.2, 0.48, 0.05, 0.6
0.05, 0.2, 0.6, 0.48
0.05, 0.2, 0.48, 0.6
Answer:
0.05, 0.2, 0.6, 0.48 I think
Answer:
0.05,0.2.0.60,0.48
Step-by-step explanation:
hope it helps ... kinda confused betwweeen 0.6 and 0.48
Two phone companies one is 11/+.16/ min And another is 20+.11/min How many minutes will make both equal amounts
Answer:
Company one charges $11 + $0.16 per min.
Then if you talk for x minutes, the cost will be:
C₁(x) = $11 + ($0.16 per min)*x
For company two, the prize is $20 + $0.11 per min, and if yo talk for x minutes, the cost will be:
C₂(x) = $20 + ($0.11 per min)*x
Now we want to find the value of x, the number of minutes, such that the cost is the same with both companies.
C₁(x) = C₂(x)
$11 + ($0.16 per min)*x = $20 + ($0.11 per min)*x
($0.16 per min)*x - ($0.11 per min)*x = $20 - $11
($0.05 per min)*x = $9
x = $9/($0.05 per min) = 180 mins
If you speak for 180 minutes, the cost is the same in both companies.
Shoes that normally cost $79.99 are on sale for
15% off. What is their sale price?
$79.99 - 15% = $67.9915
...........,..................................
There are 3000 student in the school 30% of the student are girls find
A) The total number of girl
B) The total number of student
Step-by-step explanation:
3000 [tex] 3000 \div 30 = 1000[/tex][tex]3000 \times 30 = 90000[/tex]can someone pls help
Answer:
Step-by-step explanation:
Answer:
b.
Step-by-step explanation:
Nate has 1.44 pounds of meat. He uses 0.24 pound of meat to make one hamburger. How many hamburgers can Nate make with the meat he has?
Answer: 6
Step-by-step explanation: 1.44 divided by 0.24 equals 6
Each table in a library can seat up to 5 people. There are enough tables for 75 people. How many tables are there in the library?
Answer:
15 tables
Step-by-step explanation:
75/5 = 15
Answer:
There are 15 tables in the library.
Step-by-step explanation:
You know this because you know the library holds 75 people and you know how many people can sit at a table so to find the answer you divide 75 by 5 and you get 15. To check this you can multiply 15 by 5 and you will get 75.
What should be done to these equations in order to solve a system of equations by elimination?
I- 3x + 2y = 16
12x + 5y = 21
Choose one correct answer:
Multiply the first equation by 2 and the second equation by 3.
Multiply the first equation by 3.
O Nothing needs to be done, since they both equal have 2's and 3's for coefficients.
O Multiply the first equation by
3 and the second equations by 2
Answer:
B is the correct answer
Step-by-step explanation:
Since it gets rid of the y so you could find the x and then work around to find the Y.
Answer:
Multiply the first equation by 3.
Step-by-step explanation:
Sally can paint a room in 9 hours while it takes Steve 5 hours to paint the same room. How long would it take them to paint the room if they worked together?
Answer: About 3 hours and 5 minutes to paint the room together.
Step-by-step explanation:
Sally can paint 1/5 of the room in an hour and Steve can paint 1/8 of the room in an hour.
Room/Hour
1/5 ± 1/8 =8/40
8/40+5/40=13/40
How long to paint the room?
13/40 x 1= 40/13
40÷13=3.0777
So the answer will be Sally and Steve can paint the room in about 3 hours and 5 minutes
Graph y = 2x and y= 2x
What x-values are solutions to the system?
Answer:
Wait u gave the same equation twice, do u mind checking back to it?
Step-by-step explanation:
ncmmkksms ndsjms sks dnc dd jdjsks sbds
jdsfjsfjsdj jsdf jsgd jj ej jjs sejr
write an equation represented by the graph shown !
Answer:
y = |x+1.5|
Step-by-step explanation:
Start with the graph of y = |x|. To shift it left by 1.5 units, replace x with x+1.5.
General rules for shifting graphs:
Shift y = f(x) up by a units: y = f(x) + aShift y = f(x) down by a units: y = f(x) - aShift y = f(x) left by a units: y = f(x + a)Shift y = f(x) right by a units: y = f(x - a)Answer:
y=abs(x+1.5)
Step-by-step explanation:
HELPPPPP FAST!!!
Find the volume, round your answer to the nearest tenth.
9 yd
7 yd
Answer:16
Step-by-step explanation:
what term is used to best describe the spread of the data set?
A. Median
B. Mode
C. Mean
D. Range
I'm not that sure but I think the answer is Median (A)
Find the value of x.
:]]
Answer:
144
Step-by-step explanation:
Answer:
54
Step-by-step explanation:
This is a right angle (complementary angles) so 90-43 is 47 and the angel is x - 7 so you have to add 7. Answer is 54 <3
Please help me its an easy question and please show steps (will give brainiest)
Which function is best represented by this graph?
A. y = 1/2x + 6
B. y = −2x + 3
C. y = 2x + 6
D. y = −1/2x + 3
Answer:
d
Step-by-step explanation:
not a bc it has to be negative
not c bc its has to be negative
not b bc the slope is -1/2
IT'S D
Answer:
D
Step-by-step explanation:
from the picture, we know that the slope is negative to begin, since the line is going on a downward direction from left to right. this eliminated A and C instantly.
Now we also can see the graph crossed at 3 for the y intercept, which is another reason to eliminate A and C.
we must then find the show of the line.
let us use to point (0,3) since this is the y intercept and (6,0) since this is the x intercept. to find the slope, m, at must use the equation
[tex]m = \frac{y2 - y1}{x2 - x1} [/tex]
so, let's label (0,3) as point 1 and (6,0) as point two. then,
x1 = 0
y1= 3
and
x2= 6
y2=0
Now we just plug in and simplify.
[tex] m = \frac{0 - 3}{6 - 0} = \frac{ - 3}{6} = - \frac{1}{2} [/tex]
we now have our slope and y intercept, so we can plug them into our equation
[tex]y = mx + b[/tex]
where m is the slope and b is the y intercept.
our equation is thus
[tex]y = - \frac{1}{2} x + 3[/tex]
so, the answer is D
Use the distributive property to remove the parentheses. 5(v+6)
Answer:
5 x 6v
Step-by-step explanation:
The diameter of a circular coffee can lid is 5 inches. Which measurement is closest to the area of the coffee can lid? A. 7.9in. B. 19.6in C. 31.4in D. 78.5in
Answer:
Step-by-step explanation:
Someone please help will mark as brainliest
Answer:
A) [tex]\frac{3}{5}[/tex]
Step-by-step explanation:
The graph goes up 3, to the right 5 between the two points, making the slope [tex]\frac{3}{5}[/tex].
Which equation can be used to solve for r in the following diagram?
60°
V
(4x – 20)
Answer:
c.
Step-by-step explanation:
60= (4x - 20)
expl: vertically Opposite angles
Josh has drawn a map of three destinations he wants to visit. What is the distance between destinations A and B
Answer:
73.5
Step-by-step explanation:
Please find the complete question in the attached image
Remember the notation SOHCAHTOA
We would be using cos because we have been given the hypotenuse and we are to determine the adjacent value
cos 37 = adjacent / hypotenuse
cos 37 = adjacent / 92
0.7986 = adjacent / 92
adjacent = 0.7986 x 92 = 73.5