Answer:
Radius length: √5
Standard Form (Equation): (x + 4)^2 + y^2 = 5
Step-by-step explanation:
First we will determine the radius;
Center: (-4, 0)
Point on Circumference: (-2, 1)
d = √(-2 - (-4))^2 + (1 - 0)^2 = √(2)^2 + (1)^2
= √4 + 1 = √5
Therefore the radius is of length √5
Now the equation of a circle is in the form ((x - h)^2 + (y - k)^2) = r^2. The center is in the form (h,k) and r is the radius. Given this our equation would be (x - (-4))^2 + (y - 0)^2 = (√5)^2, or [simplified] (x + 4)^2 + y^2 = 5.
Answer:
its C. (x + 4)² + y² = 5
Step-by-step explanation:
edge
To be labeled as a jumbo egg, the egg is supposed to weigh 2.5 oz. Priya buys a carton of jumbo eggs and measures one of the eggs as 2.4 oz. What is the percent error?
Answer:
The percent error is 4%
Step-by-step explanation:
Expected value of egg = 2.5 oz
Observed value of egg = 2.4 oz
We need to find the percent error.
The formula used to calculate percent error is: [tex]Percent\:error=|\frac{Observed\:Value-Expected\:Value}{Expected\:Value}| .100\%[/tex]
We use || (absolute) sign because if the answer is negative, we considered it as positive i,e |-a| = a
Putting values in formula and finding percent error
[tex]Percent\:error=|\frac{Observed\:Value-Expected\:Value}{Expected\:Value}| .100\%\\Percent\:error=|\frac{2.4-2.5}{2.5}| .100\%\\Percent\:error=|\frac{-0.1}{2.5}| .100\%\\Percent\:error=|-0.04|.100\%\\We\:know\: |-a|=a\\Percent\:error=0.04.100\%\\Percent\:error=4\%[/tex]
So, the percent error is 4%
The mural of your school mascot is $4$ feet by $12$ feet and is to be completely framed using a single row of square tiles each $2$ inches on an edge. If the tiles are $\$0.10$ each, find the cost, in dollars, of the tiles needed to frame the mural.
Answer:
$19.2
Step-by-step explanation:
The school mascot is rectangular in nature.
Perimeter P = 2(L+W)
L is the length = 4feet
W is the width = 12 feet
Perimeter = 2(4+12)
Perimeter = 2(16)
Perimeter = 32 feet
Convert to inches
12in = 1feet
x = 32 feet
Cross multiply
x = 12 * 32
x = 384in
Hence the perimeter of the school mascot is 384in
If it is to be completely framed using a single row of square tiles each 2inches on an edge
2 inches = 1 tiles
384inches = y tiles
Cross multiply
2y = 384
y = 384/2
y = 192 tiles
The number of tiles needed is 192 tiles
Get the cost of 192tiles
If the tiles are $0.10 each. 192 tiles will cost 192 * 0.1 = $19.2
Hence the cost of the tiles needed is $19.2
In a tennis club there are 3 times as many right-handed players as there are left-handed players. If there are 72 players in total, how many are left-handed?
Answer 18
Step-by-step explanation:
There are 13 books on a shelf. 5 of these books are new. The rest of them are used.
Answer:
So there is 8 old books
Step-by-step explanation:
Answer:
so 8 books are being used and 5 are new total of 13 :)
Step-by-step explanation:
Please help meeeee :,(
Answer:
I pretty sure the answer is ASA, I hope it's right!
Plz can you help me out with this question..
Answer:
86%
Step-by-step explanation:
The mean is calculated as
mean = [tex]\frac{sum}{count}[/tex]
The sum for the class is calculated as
[tex]\frac{sum}{30}[/tex] = 70 ( multiply both sides by 30 )
sum = 2100
The sum of the 20 boys is
[tex]\frac{sum}{20}[/tex] = 62 ( multiply both sides by 20 )
sum = 1240
The sum for the 10 girls is therefore 2100 - 1240 = 860
Thus the mean mark for the girls is
mean = [tex]\frac{860}{10}[/tex] = 86%
Luna entered a raffle for a new pair of running shoes. She purchased 20 tickets and was told that she had a 20% chance of winning. How many tickets were sold? P (Luna winning) = StartFraction Number of tickets purchased over Total number of tickets sold EndFraction. 20 percent = StartFraction 20 over x EndFraction. One-fifth = StartFraction 20 over x EndFraction. x = tickets
Answer:
100 ticketsStep-by-step explanation:
Probability of winning = amount of tickets purchased/Total number of tickets
20% = 20/total number of tickets
20/100 = 20/total number of tickets
cross multiply
20 * total number of tickets = 20 * 100
20 * total number of tickets = 100
total number of tickets sold = 100 tickets
Answer:
100 tickets
Step-by-step explanation:
Hi and goodbye
Work out 97.974436÷14and give your answer to 2 decimal places.
Answer:
7
Step-by-step explanation:
97.974436/ 14= 6.998174
round to 2 decimal places by looking at the third digit after decimal and is 8 that is greater than 5 so will round up the second digit after the decimal
But, that will make 9 a 10 so we have to make the number 7
Will give crown will post one more
Answer:
1 is 22; 2 is 19; 3 is 16; 4 is 13; 5 is 10
Step-by-step explanation:
Give me that crown again
Answer:
22, 19, 16, 10
Step-by-step explanation:
y = 25-(3*1)= 22
y = 25-(3*2)= 19
y = 25-(3*3)= 16
y = 25-(3*5)= 10
Please help me I’m so behind and I’m going to fail if I can’t get this answer. I need 15 but can someone also do 14.
Answer:
its d 100%
Step-by-step explanation:
A pair of shoes is ticketed $49.99 but marked 15% off. You had a coupon for an additional 10% off the sales price. You have to pay 6.75% sales tax on shoes. How much are you paying?
Answer:
$40.86
Step-by-step explanation:
just multiply 49.99 times 0.15 then multiply 49.99 times 0.10 then add those together to get 12.49 then multiply 49.99 times 0.0675 to get 3.37 then subtract 12.49 from 49.99 then add 3.37 to that so like
(49.99 - 12.49) + 3.37 = 40.86
HELPP ASAP PLEASE, WILL GIVE BRAINLIEST !!!!!
Sarah would like to hire a clown for her daughter’s birthday party. Clown A is offering his services for an initial fee of $100 in addition to $11 per hour. Clown B is offering her services for an initial $150 fee in addition to $8 per hour. When will the two clowns charge the same amount of money? Use a table to estimate the solution.
What are the functions?
Answer:
$88.00.
Step-by-step explanation:
here is how I got my answer,
first you multiply 11, 8 times then you will get a total of $88.00.
second you do the same thing, but you go like this, you multiply 8, 11 times and you will get a total of $88.00.
therefore your answer is $88.00.
Review the function equation below.
y = −9x + 3
Enter the slope of the function in the box.
Answer:
the slope is -9
Step-by-step explanation:
its with x and decreases by 9
the value of a second-hand car is £8000
Each year it loses 20% of it value at the start of this year. work out its value in 5 years time.
pls show working out
I will mark brainest and rate 5 stars
Answer:
£2,621.44
Step-by-step explanation:
Original cost of car = £8000
If it looses 20% of its value yearly
Value at the end of first year
80% * 8000
= 0.8 * 8000
= 6400
Value at the end of second year
80% * 6400
= 0.8 * 6400
= 5120
Value at the end of third year
80% * 5120
= 0.8 * 5120
= 4096
Value at the end of fourth year
80% * 4096
= 0.8 * 4096
= 3,276.8
Value at the end of fifth year
80% * 3,276.8
= 0.8 * 3,276.8
= 2,621.44
Hence the value in 5 years time will be £2,621.44
Hector has 10 cups of flour. Which equation shows how to determine the number of Two-fifths of a cup servings there are in the 10 cups of flour?
Answer:
10 divided by two fifths = 25
Write an equation in slope-intercept form which has a slope of 1/4 and crosses the Ÿ-axis at (0,7)
Answer:
y= 1/4 x +7
Step-by-step explanation:
The slope intercept form of a line is
y = mx + b where m is the slope and b is the y intercept
the slope is 1/4 and the y intercept is 7
y= 1/4 x +7
please help will give brainliest
10.Let's solve for f.
gx=fx−4
Step 1: Flip the equation.
fx−4=gx
Step 2: Add 4 to both sides.
fx−4+4=gx+4
fx=gx+4
Step 3: Divide both sides by x.
fx/x=gx+4/x
The correct answer would be f= gx+4/x
11. Let's solve for f.
hx=12fx+2
Step 1: Flip the equation.
12fx+2=hx
Step 2: Add -2 to both sides.
12fx+2+−2=hx+−2
12fx=hx−2
Step 3: Divide both sides by 12x.
12fx/12x = hx-2/12x
The correct answer would be F= hx-2/12x
12. Let's solve for f.
kx=(−2f)(−x)
Step 1: Flip the equation.
2fx=kx
Step 2: Divide both sides by 2x
2fx/2x= kx/2x
The correct answer would be F= k/2
Side note: "/" is supposed to represent division and fractions
Answer:
10. f(x) was translated 4 units down
11. f(x) is stretched vertically by a factor of 12 and translated 2 units up
12. f(x) is stretched vertically by a factor of 2, reflected vertically along the x-axis, and reflected horizontally along the y-axis
Step-by-step explanation:
you have to explain what happened to f(x)
start by following the process SRT (stretch, reflection translation) for SR y then x transformations and for T x translation then y translation
This is the John Hancock Building. What shape do you think surrounds the diagonal braces? List several ways to test your conjecture.
Answer:
ha you said C O C K
Step-by-step explanation:
Which division problem can be described using this model?
2÷15
2÷5
2÷110
1÷110
Two rectangular strips in a row, the top of each strip is labeled 1. Each strip is divided into 5 equal parts.
Answer:
2 divided by 5
Step-by-step explanation:
Hope this helped!! Give brainliest
The division 2÷5 describe the two rectangular strips in a row, the top of each strip is labeled 1. Each strip is divided into 5 equal parts.
What is a fraction?Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
We have two rectangular strips in a row, the top of each strip is labeled 1. Each strip is divided into 5 equal parts.
So the one strip represents one whole and two represents 2
So each strip represent 2÷5
Thus, the division 2÷5 describe the two rectangular strips in a row, the top of each strip is labeled 1. Each strip is divided into 5 equal parts.
Learn more about the fraction here:
brainly.com/question/1301963
#SPJ2
A realtor found a home for a couple that will require a monthly loan payment of $1460. If the lender insists that the buyer's monthly payment not exceed 28% of the buyer's monthly income
find the minimum monthly income required by the lender. Simply your answer.
Answer:
The minimum monthly income required by the lender is $5214.30
Step-by-step explanation:
Here, we want to calculate the minimum monthly income required by the lender
From the question, we have that the monthly payment must not exceed 28% of the buyer’s monthly income
So in this case, let the monthly income be x
So therefore;
28% of x = 1460
Thus;
28/100 * x = 1460
28x = 100 * 1460
x = (100 * 1460)/28
x = 5214.30
The price of a ticket to a show was $18.30 after a 25% discount. What was the original price?
Answer:
24.40
Step-by-step explanation:
divide this by 3, which gets you 6.10, or 1/4 of the total, then add that onto the 18.30 and boom
what is x + 59-279?plz answer
x220...............
.
.
.
.
.
Answer:
x − 2 > 1
Step-by-step explanation:
If you are solving for x it would be
what is the value of x in this triangle
Answer:
30
Step-by-step explanation:
if the total angles in a triangle equals 180, and there is 6x in total (after adding it up), 180 divided by 6 equals 30.
Hope that makes sense!
The temperature is 2 ∘F and drops to −15 ∘F overnight. Write and then evaluate a subtraction expression to determine the temperature change.
Enter the correct answers in the boxes.
Expression:
a
Temperature change:
∘F
If \triangle ABC△ABC is equilateral, solve for x.
x=
Answer:
x = 13
Step-by-step explanation:
The tirangle ABC is given as equilateral. Every angle is therefore =. Not only that, each angle is 60 degrees.
If you need proof of that, remember that x + x + x = 180. Every triangle has 180 degrees.
if 3x = 180 then 1 x is 60
8x - 44 = 60 Add 44 to both sides.
8x = 60 + 44
8x = 104 Divide by 8
x = 104/8
x = 13
Zoey has 99 years .She plans to make 5 bangles .Each bangle is made using 30 beads how many more beads does zoey need?
Note: I am assuming you meant to say:
Zoey has 99 beads instead of 99 years.Answer:
Zoey needs 51 more beads to make 5 bangles.
Step-by-step explanation:
Total number of beads Zoey currently has = 99 beads
Beads need to make one bangel = 30 beads
so
Beads need to make 5 bangles = 30 × 5 = 150 beads
Since she has already 99 beads.
So, all we need s to subtract 99 beads from 150 beads.
Therefore,
The number of beads Zoey needs = 150 - 99
= 51 beads
Thus, Zoey needs 51 more beads to make 5 bangles.
What is the equation of the line that passes through the point (−1,−3) and has a slope of 3?
Answer:
y= 3x
Step-by-step explanation:
The slope is just read. It is 3. It is the value of m in the general equation.
y = mx + b
y = 3x + b
To find b, use (-1,-3)
x = -1
y = -3 Substitute into the general equation
-3 = 3(-1) + b Simplify the right side
-3 = -3 + b Subtract -3 from both sides
b = 0
Answer: y = 3x
Tyler’s brother works in a shoe store.
a) Tyler’s brother earns a commission. He makes 2.5% of the amount he sells. Last week, he sold $900 worth of shoes. How much was his commission?
b) The store bought a pair of shoes for $50, and sold it for $80. What percentage was the markup?
c) Tyler’s brother earns $12 per hour. The store offers him a raise—a 5% increase per hour. After the raise, how much will Tyler’s brother make per hour?
Answer:
A) $22.5
B) $12.6
C) ...
Sorry but i only know two! But i hope this helps you!
Answer:
a) 22.50
b) 12.60
c) 12.60
Step-by-step explanation:
x=2y-1
3x-3y=9
a. substitution; (7,4)
b. elimination using multiplication; (3, 2)
C. substitution; (4,7)
d. elimination using multiplication; -21,-10)
Answer: Substitution (7,4)
Step-by-step explanation: Since the value of X is given to us, just plug that in to the other equation to solve for the y coordinate.
41 percent of 78 is what?
Answer:
31.98
Step-by-step explanation:
78 * .41 = 31.98