Write the quadratic equation in standard form:
8x2=8x + 13 + 4x2
mrs. freeman is paying for a $20 meal. she has a 15% off coupon for the meal. after the discount , a 7% sales tax is applied.
what does mrs freeman pay for the meal
Answer:
Lin's father pay for the meal is $18.19
Step-by-step explanation:
Given:
Lin’s father is paying for a $20 meal.
He has a 15%-off coupon for the meal.
After the discount, a 7% sales tax is applied.
Now, to get the amount Lin's father pay for meal.
So, we deduct the 15% discount first:
$20 - 15% of $20.
Then, adding 7% sales tax:
$17 + 7% of $17
Therefore, Lin's father pay for the meal is $18.19.
Someone please help asap!!! It’s due in 45 minutes, how am I supposed to know where to shade when doing these?
Answer:
If you want to know the process on how to graph and shade, start by graphing the inequalities. Assume that the inequality signs are just =, so the equation is y=mx+b. Let's use 1) as an example. When the sign is < or >, it's a dotted line. If the sign is ≥ or ≤, it's a solid line. Once you're done graphing the inequalities, choose a random coordinate on the graph. Let's use (0,0). Now, plug in the x- and y-value into the equations. 0<-6(0)+3 and 0≤0-2. Simplify it to get 0<3 and 0≤-2. Because the inequality is true for y<-6x+3, you would shade the side of the graph that includes (0,0). Because the inequality isn't true for y≤-x-2, you would shade the side of the graph that doesn't include (0,0). The shaded parts of both inequalities should overlap somewhere and that's the area you need to officially shade.
Here's the worked example:
If you are still confused, feel free to ask! :)
Where did paco make an error in his calculation?Explain.
Answer:
He made a mistake in step 2
Step-by-step explanation:
-3x does not equal 6 it clearly states it equals 1
Can someone help me rnnn please??
Answer:
No, they are the same triangles
Step-by-step explanation:
They both have a side length of 3 and 5 and an angle that measures 60 degrees. The triangles are just flipped in different directions.
If they were to draw an additional triangle that would make it seem different, they could expand the angle and make it obtuse to get a triangle with 1 wide corner.
The weight of oranges growing in an orchard is normally distributed with a mean weight of 5.5 oz. and a standard deviation of 1 oz. Using the empirical rule, determine what interval would represent weights of the middle 68% of all oranges from this orchard.
pleaseeee help me now, im taking a test and it's timed
WHAT HAPPENS WHEN NON-METALLIC ELEMENTS ARE COMBINED
please help me i really need help please
Select the correct answer.
Factor the polynomial below.
4.12
16
ОА.
4(x - 2)2
O B.
4(x + 2)(x - 2)
O c.
4(2 - x)2
4(2 + x)2 - x)
Answer:
B
Step-by-step explanation:
That was actually trickier than I thought it would be
I was looking for 4(x-4), but 4(x-2)(x+2) also works
Answer:
4(x - 2)(x + 2) (Answer B)
Step-by-step explanation:
4x^2 - 16 is the difference of two squares, a case in which there is a simple formula to remember: a^2 - b^2 = (a - b)(a + b)
4x^2 - 16 = (2x - 4)(2x + 4)
This can be further simplified: 2(x - 2)(2)(x + 2) = 4(x - 2)(x + 2) (Answer B)
Need Help Asap Please
Answer:
corporation C owns the most land
Step-by-step explanation:
hope it helps
Need help asap! Please and thank you
Answer:
D
Step-by-step explanation:
Need help solving this!
Answer:
A = 4πcm, 6πcm²
B = 45°, 35πcm²
C = 12m, 18.7πm or 19πm
Step-by-step explanation:
Formulas used...
Length of an arc of a sector = (¢/360)×2πr
Area of sector = (¢/360)×πr²
¢ means the angle given or used
Find the area of the polygon.
Answer:
To find the area of a regular polygon, all you have to do is follow this simple formula: area = 1/2 x perimeter x apothem. Here is what it means: Perimeter = the sum of the lengths of all the sides. Hope this helps !!
Step-by-step explanation:
Solve 4y^2+7y+2=0 to 2 decimal places
Answer: There were two sloutions either y= -1/4= -0.250 or y=2
HELP PLEASE I NEED TO PLOT THIS POINT :)
The point would be at (-6,5) I believe. Sorry if this is incorrect.
Part 3a. NO LINKS. Find the measure of the arc or angle indicated.
9514 1404 393
Answer:
99°
Step-by-step explanation:
Arc YZ is twice the measure of angle X, so is 136°. The sum of the arcs of a circle is 360°, so the unknown arc is ...
360° -136° -125° = 99° . . . . measure of arc XZ
Answer:
Solution given:
<x=68°
arc XY=125°
arc XZ=?
we have
<X+<W=180°[sum of opposite angle of a cyclic quadrilateral is supplementary]
<W=180°-68°=112°
Now
arc YZ=2×112°=224°[central angle is equal to the twice of its inscribed angle]
arc YZ=224°
arc XY +arc YZ=224°
125°+arc YZ=224°
arc YZ=224°-125°
arc YZ=99°
the measure of the arc or angle indicated is 99°.
A team won 5 and lost 2 of their first 7 games. The
team continued to win at this rate and won w
games in the 28-game season. Which of the
following proportions could be used to determine w?
Answer:
5/7=W/28
Step-by-step explanation
They won 5 out of 7 played games so that's their win rate. If the same team continued to do this for 28 games then they would win 20 times.
A swimming pool is open for 7 1/2hours during a day. The pool keeps one lifeguard on
duty at a time, and each lifeguard's shift is 2 1/2hours long. How many shifts are there
per day?
7 shifts
5 shifts
3 shifts
4 shifts
Answer:
3 shifts a day
Step-by-step explanation:
7 1/2 hours = 7.5 2 1/2 hours = 2.5
7.5 divided by 2.5 = 3
Answer:
3 shift
Step-by-step explanation:
7 1/2 / 2 1/2
(15/2) / (5/2)
keep, change, flip
(15/2) x (2/5)
30/10 = 3 shifts
x = 12 − y
2x + 3y = 29
You are traveling in a car. Your speed is 30 miles per hour. What is your speed in feet per minute?
Answer:
.5
Step-by-step explanation:
30 miles a hour divide by 60 so your going half a mile a minute
Your speed in feet per minute is 2640 ft/min.
What is unit rate?A unit rate means a rate for one of something.
Given that, Your rate of speed is 30 miles for every 1 hour
We know, 1 mile = 5280 feet
Therefore, 30 miles = 30x5280 = 158400 feet
That means, you are travelling 158400 feet for every hour
In an hour, there are 60 minutes,
Therefore, you are travelling 158400 feet in every 60 minutes.
In 60 minutes = 158400 feet
In 1 minute = 158400/60 = 2640 feet
That means you are travelling 2640 feet in every 1 minute.
Hence, your speed in feet per minute is 2640 ft/min.
For more references on unit rate, click;
https://brainly.com/question/11258929
#SPJ2
solve these equations, show all your work 7x=14
Answer:
x=2
divide everything by 7. 14/7= x=2
Step-by-step explanation:
I need this answer as quick as possible!
A watercolor painting is 25 inches long by 12 inches wide. Ramon makes a border around the watercolor painting by making a mat that adds 3 inches to each side of the length and the width. What is the area of the mat?
Answer:
the area of the mat = total area added minus the original area of the water color painting.
Step-by-step explanation:
length of the mat is:L = 20 in + 1 in + 1 in because 1 in is added to each sideL = 22 inwidth of the mat is:w = 9 in + 1 in + 1inw = 11 in
Area mat = (22 in x 11 in) - ( 20 in x 9 in)
area mat = 62 sq in is the area of the mat
Find the value of cos[cos^-1(sqrt 2/2)-n/2]
Answer:
I highly think it's D. [tex]\frac{\sqrt{2} }{2}[/tex]
Step-by-step explanation:
12 points help fast I need help
Answer:
False, False, True, TrueStep-by-step explanation:
1
IQR'sRide A: 30 - 20 = 10Ride B: 30 - 10 = 20False, as 10 < 202
MediansRide A: 25Ride B: 20False, as 25 > 203
RangesRide A: 45 - 5 = 40Ride B: 35 - 0 = 35TRUE, as 40 > 354
MinimumRide A: 5Ride B: 0TRUE, as 0 < 5pyramid = 40
prism = 30
prism = 30
Wprism = 30
What is the volume of this solid?
O A. 39,000
B. 63,000
C. 100,800
D. 27,000
Answer:
A. 39,000.
Step-by-step explanation:
Volume of the lower prism = 30^3= 27,000
Volume of the pyramid = 1/3 area of the base * height
= 1/3 * 900 * 40
= 1200
Volume of the whole solid = 27000 + 12000
= 39,000,
List of 7 consecutive composite numbers less than 100.
Answer:
4
6
8
9
10
12
14
Step-by-step explanation:
any number that is not a prime number
Answer:
2,3,4,5,6,7,8
Make me brainliesttt :))
Please help me out here
Answer:
40*
Step-by-step explanation:
the whole line FC would measure 180* so then 180-50 for AGC then AGB is congruent to EGD so 180-50-90---> 130-90---> 40* so angleBGC is 40 degrees
PLEASE HELP!!! Find (angle) BAD.
Answer:
125
Step-by-step explanation:
31+24= 55 180-55= 125
Jada walks dogs to earn money. The points in this graph represent the total amount of money Jada earns based on the number of hours she walks dogs. Jada wants to purchase a new jacket that costs $32.
How many hours does Jada need to walk dogs to earn enough money to buy the jacket?
Answer:
Eight Hours.
Step-by-step explanation:
Since she makes 4$ in 1 hour, you divide 32 by 4 to see how many hours it would take her.
32 divided by 4 = 8
Jada needs 8 hours to walk dogs to earn enough money to buy the new jacket which costs $32.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
Jada wants to purchase a new jacket that costs $32.
Since she makes 4$ in 1 hour
So, Time is taken to earn money to 4$ = 1 hour
Time is taken to earn money to1$ = 1/4hour
Time is taken to earn money to 32$ = 32/4hour
= 8 hour
Thus, Jada needs 8 hours to walk dogs to earn enough money to buy the jacket.
Learn more about the unitary method;
https://brainly.com/question/23423168
Hiiiiiii pls helppppppppp plsssss and thxxxxxx
Answer:
It's A I believe
Step-by-step explanation:
Answer:
D, 1056 Cubic inches
Step-by-step explanation:
Multiply 11x16 to get the 2-d area of it's base. after multiply by 8 to get its hieght. You have the volume of the shape with the step-down filled. To find the volume with the step down empty, divide by 4 to get the area of 1/4. then multiply by 3 to find 3/4 of the rectangular prism
{[(11×16×8)÷4]3} <== Equation