Answer:
Another way to identify the domain and range of functions is by using graphs. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.
Step-by-step explanation:
Answer:
range is the biggest number minus the smallest
NEED HELP ASAP WILL GIVE BRAINLIEST!!!
Answer:
392
Step-by-step explanation:
20• 4 + 13•24
80+ 312
Answer:
I believe it is, $80 for adults and $312 for students.
MATHEMATICAL CONNECTIONS Find the values of x and y.
43°
759
tol
X =
= and
V
Answer:
x = 43°
y = 32°
Step-by-step explanation:
x = 43° ( vertical angles)
By exterior angle property of a triangle.
43° + y° = 75°
y° = 75° - 43°
y° = 32°
Pls answer!!!! Iwidjenwjidufn
glen is looking into buying a piece of land. he estimates that the land measures 700 yd by 50 yd. the land is actually 720 yd by 120 yd. what is the percent error in the estimated area of the land?
Answer:
0.595
Step-by-step explanation:
The computation of the percent error is as follows
Actual area is
= (720-yd × 120-yd)
= 86,400 square yards.
Estimated area is
= (700-yd × 50-yd)
= 35,000 square yards
Now
Error = (86,400 - 35,000)
= 51,400 square yards
Percent error is
= 51,400 ÷ 86,400
= 0.595
O 3/4, 6/8
Is this a equivalent fraction
Answer:
yes, yes it is ....
Step-by-step explanation:
What is the sum of (x ^ 2 - 3x + 2) and (5x ^ 2 - 3x - 8)
Answer:
6x^2-6x-6
Step-by-step explanation:
(x^2-3x+2)+(5x^2-3x-8)
x^2+5x^2-3x+(-3x)+2+(-8)
6x^2-3x-3x+2-8
6x^2-6x+2-8
6x^2-6x-6
The volume of a sphere is decreasing at a constant rate of 116 cubic centimeters per second. At the instant when the volume of the sphere is 77 cubic centimeters, what is the rate of change of the radius? The volume of a sphere can be found with the equation V=\frac{4}{3}\pi r^3.V=
3
4
πr
3
. Round your answer to three decimal places.
Answer:
[tex]\frac{dr}{dt} = -1.325 \ cm/s[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Calculus
Derivatives
Basic Power Rule:
f(x) = cxⁿ f’(x) = c·nxⁿ⁻¹Taking Derivatives with respect to time
Step-by-step explanation:
Step 1: Define
Given:
[tex]V = \frac{4}{3} \pi r^3[/tex]
[tex]\frac{dV}{dt} = -116 \ cm^3/s[/tex]
[tex]V = 77 \ cm^3[/tex]
Step 2: Solve for r
Substitute: [tex]77 = \frac{4}{3} \pi r^3[/tex]Isolate r term: [tex]\frac{77}{\frac{4}{3} \pi} = r^3[/tex]Isolate r: [tex]\sqrt[3]{\frac{77}{\frac{4}{3} \pi}} = r[/tex]Evaluate: [tex]2.63917 = r[/tex]Rewrite: [tex]r = 2.63917 \ cm[/tex]Step 3: Differentiate
Differentiate the Volume Formula with respect to time t.
Define: [tex]V = \frac{4}{3} \pi r^3[/tex]Differentiate [Basic Power Rule]: [tex]\frac{dV}{dt} = \frac{4}{3} \pi \cdot 3 \cdot r^{3-1} \cdot \frac{dr}{dt}[/tex]Simplify: [tex]\frac{dV}{dt} = 4 \pi r^2 \cdot \frac{dr}{dt}[/tex]Step 4: Find radius rate
Substitute in variables: [tex]-116 \ cm^3/sec = 4 \pi (2.63917 \ cm)^2 \cdot \frac{dr}{dt}[/tex]Isolate dr/dt rate: [tex]\frac{-116 \ cm^3/s}{4 \pi (2.63917 \ cm)^2} = \frac{dr}{dt}[/tex]Evaluate: [tex]-1.3253 \ cm/s = \frac{dr}{dt}[/tex]Rewrite: [tex]\frac{dr}{dt} = -1.3253 \ cm/s[/tex]Round: [tex]\frac{dr}{dt} = -1.325 \ cm/s[/tex]Our radius is decreasing at a rate of -1.325 cm per second.
The point (4, 5) is translated two units left and eight units down. What is the y-coordinate of the image?
Answer:
y = -3
Step-by-step explanation:
Left and down are there for you to subtract and right and up are there for you to add.
Since you would need to get the y-coorindate, you would need to subtract 8 from 5 to get to -3.
Answer:
-3
Step-by-step explanation:
Hope it helps.
Beth needs to add a 15% tip to her $12 meal. How much total money does she need?
Answer:
$13.8
Step-by-step explanation:
15% of 12 is 1.8, so if you are adding 15%, that would make the equation
12 + 1.8 = 13.8
Answer:
$13.80
Step-by-step explanation:
Let's first figure out how much the tax is in dollars.
We see that Beth will be tipping a value of 15% of her $12 meal. Remember that in math, "of" almost always means to multiply, so we're multiplying 15% by 12:
15% * 12 = 15/100 * 12 = 0.15 * 12 = $1.80
So, the tip is $1.80. Add this to the original $12 to get the total cost:
$1.80 + $12 = $13.80
What is the slope of the equation: d = 425t?
Answer:
425
Step-by-step explanation:
hope this helps. pls give brainliest.
Hi Help please asap!!!!!!!
Answer:
5.213
Step-by-step explanation:
bruh just search up right triangle calculator
which is a function???
Answer:
The answer is ✰ C ✰
Step-by-step explanation:
:))
Answer:
A binary relation between two sets.
Input = x
Output = y
Step-by-step explanation:
Mr. Johnson's math class has twice as many students as Mrs. Jones' math class.
Mr. Smith's math class has 4 more students than Mr. Johnson's math class.
The total number of students in all of the classes is 54 students.
How many students are in Mr. Smith's class?
Hint: Make the number of students in Mrs. Jones class x
Answer: 4x54=216
Step-by-step explanation:
Well you don’t need to count in mr smiths math class because all the classes has 54 so um I did 4x54 hoped this helped :)
Answer:
Mr Smith: 24
Mr Johnson: 20
Mrs Jones: 10
24+20+10=54
Step-by-step explanation:
So I took a random number, and that number was 24.
I took 24 and put at as my testing in Smith's class.
If Mr. Smith had 24 students then, (x-4=Mr Johnson's class) Mr Johnson has 20 students, and half of that would be the amount of students in Mrs Jones class, so that equals 10.
J = Jones
Jo = Johnson
S = Smith
Finally S+Jo+J=54
can you please help me?
Answer:
The angle next to angle 1 is 180-58-39=83. Due to vertical angles, angle 2 is 83 degrees. So angle 3 is 180-35-83=62
find the number that belongs in the green box. round your answer to the nearest tenth.
Answer:
16.7°
Step-by-step explanation:
We solve this using the Cosine rule formula
From the question we have
Side a = 14
Side b = 15
Side c = ?
We are given Angle C = 70°
Hence,
c² = a² + b²− 2ab cos(C)
Hence,
c² = 14² + 15² - 2(14 × 15) × cos (70°)
c =√[ 14² + 15² - 420 × cos (120°)]
c = 16.65387 °
Approximately to the nearest tenth
c = 16.7°
What second degree polynomial function f(x) has a leading coefficient of 3 and roots 4 and 1
Answer: f(x) = 3x² - 15x + 12
Step-by-step explanation:
Given f(x) has roots x = a and x = b, then
(x - a) and (x - b) are the factors
f(x) is then the product of the factors
f(x) = a(x - a)(x - b) ← where a is a multiplier
Given roots are x = 4 and x = 1, then
(x - 4) and (x - 1) are the factors
With a = 3, then
f(x) = 3(x - 4)(x - 1) ← expand factors using FOIL
= 3(x² - 5x + 4) ← distribute
= 3x² - 15x + 12
Idk how to do this without an image honestly
9514 1404 393
Answer:
(x, y) ⇒ (x -m, y -n)
Step-by-step explanation:
Reverse the arrow and solve for the x and y on the left:
(x +m, y +n) ⇒ (x, y)
This resolves to two relations:
x + m ⇒ x
x ⇒ x - m . . . . . subtract m
and
y + n ⇒ y
y ⇒ y - n . . . . . . subtract n
Putting these back together, we have ...
(x, y) ⇒ (x -m, y -n) . . . . . maps P'Q' to PQ
_____
The original translation was right m and up n. The reverse translation is left m and down n. That is what the rule shows.
I’m in 10th grade taking math for college readiness way behind on edge I’m paying 100 bucks on Apple Pay, PayPal ,or cash app to whoever can catch me up this week my email is kanemagdalene at g mail .com someone help please
Even if you catch me up to a c I’ll pay 50
Answer:
Just post your question here
Step-by-step explanation:
Jeremy didn't pay his previous months credit card bill in full. This months bill shows a finance charge of $85.50 Jeremy calculate the average daily balance in the new bill to be $5343.75 what is the monthly percentage rate on the card?
In which number line does the pointer show a number between -2 and -3?
A
B
C
D
Answer:
C
Step-by-step explanation:
Answer:
the answer is c
Step-by-step explanation:
On a cold winter moming in Colorado, the outdoor temperature was 5 degrees Fahrenheit at sunrise For the next sex hours the temperature rose steadily by 3 degrees Fahrenheit every hour
T(h)=
Answer: 6
Step-by-step explanation:
because i said so
anyone happen to know this answer ?
Answer:
B
Step-by-step explanation:
please help i will mark brainliest
Answer:
Step-by-step explanation:
1. x=45 y=90
2. x=40 y=40
3. x=12 because each angle would be 60, then you would divide that by 5 to get 12.
4. x= 40
5. 6x-9=2x+7
4x=16
x=4 - answer
6. 2x=3x-7
-x=-7
x=7 -answer
The local package store charges $3.30 for each package plus $0.75 per ounce.
The nationally-owned package store charges a flat rate of $0.95 per ounce.
Part 1:
For a 10 ounce package how much will it cost at both stores?
Part 2:
For a 15 ounce package how much will it cost at both stores?
Part 3:
For a 1 pound (16 oz), 1 ounce package how much will it cost at both stores?
Part 4:
What did you notice about which store was the least expensive for each of the 3 parts above? Which store will be cheaper for a 1 pound package?
ALSO SHOW YOUR WORK
Answer:
Part 1 - Local Package Store 0.75 × 10 = $7.50 + $3.30 = $10.80
Nationally-Owned Package Store 0.95 × 10 = $9.50 + $3.30 = $12.80
Part 2 - Local Package Store #1 0.75 × 15 = $11.25 + $3.30 = $14.55
Nationally-Owned Package Store #2 0.95 × 15 = $14.25 + $3.30 = $17.55
Part 3 - Local Package Store #1 0.75×17 = $12.75 + $3.30 = $16.05
Nationally-Owned Package Store #2 0.95×17 = $16.15 + $3.30 = $19.45
Part 4 - 1. The Local Package Store was Cheaper for all three packages than the Nationally-Owned Package Store.
2. The Local Package Store is cheaper for the 1 pound 1 ounce package than the Nationally-Owned Package Store.
A ratio comparing two equivalent measurements is called a
A ratio comparing two equivalent measurements is called a proportion.
How many fluid ounces of vinegar should be mixed with 80 fluid ounces of water to make the cleaning solution?
Answer: I'm pretty sure its five fluid ounces
Step-by-step explanation: use the ratio 80/16=5
If f ( x ) f(x) is an exponential function where f ( − 5 ) = 26 f(−5)=26 and f ( 3 ) = 54 f(3)=54, then find the value of f ( 0.5 ) f(0.5), to the nearest hundredth.
Answer:
[tex]f(0.5) = 42.55[/tex]
Step-by-step explanation:
Given
[tex]f(-5) = 26[/tex]
[tex]f(3) = 54[/tex]
Required
Find f(0.5)
An exponential function is of the form:
[tex]y=ab^x[/tex]
For: [tex]f(-5) = 26[/tex]
[tex]x = -5[/tex] [tex]y = 26[/tex]
So, we have:
[tex]26 = ab^{-5}[/tex] --- (1)
For [tex]f(3) = 54[/tex]
[tex]x = 3[/tex] [tex]y =54[/tex]
So, we have:
[tex]54 = ab^3[/tex] --- (2)
Divide (2) by (1)
[tex]\frac{54}{26} = \frac{ab^3}{ab^{-5}}[/tex]
[tex]\frac{54}{26} = \frac{b^3}{b^{-5}}[/tex]
Apply law of indices
[tex]\frac{54}{26} = b^{3-(-5)}[/tex]
[tex]\frac{54}{26} = b^{3+5}[/tex]
[tex]\frac{54}{26} = b^{8}[/tex]
[tex]2.07692307692= b^{8}[/tex]
Take 8th roots of both sides
[tex]b = \sqrt[8]{2.07692307692}[/tex]
[tex]b = 1.09566440144[/tex]
[tex]b = 1.10[/tex]
Substitute 1.10 for b in [tex]54 = ab^3[/tex]
[tex]54 = a * 1.10^3[/tex]
[tex]54 = a * 1.331[/tex]
Solve for a
[tex]a = \frac{54}{1.331}[/tex]
[tex]a = 40.57[/tex]
To solve for f(0.5), we have:
[tex]y=ab^x[/tex]
[tex]f(0.5) = 40.57 * 1.10 ^ {0.5}[/tex]
[tex]f(0.5) = 40.57 * 1.04880884817[/tex]
[tex]f(0.5) = 42.5501749703[/tex]
[tex]f(0.5) = 42.55[/tex] (approximated)
10. Two students' solutions to the equation 6(x+4)3x-2 are shown. Both students made an error. Find the errors.
Student 1
6(x+ 4) = 3x - 2
*+43x-2-6
** 43x-
*+4+3x-88
x+12 3x
12 - 2x
Student 2
6(x + 4) = 3x - 2
6x + 43x-2
3x + 4 =-2
3x + 4-4--2-4
3x = -6
X-2
X
6X
T
Answer:
5x² - 13x + 71
Step-by-step explanation:
We are to subtract 3x²+7x-43 from 8x²-6x+28
That is:
8x² - 6x + 28 - (3x² + 7x - 43)
8x² - 6x + 28 - 3x² - 7x + 43
Collect like terms:
8x² - 3x² - 6x - 7x + 28 + 43
5x² - 13x + 71
Express 1400ml as a percentage of 2.1 liter
10 points for free answer also will mark brainliest
Answer:
66.67%
Step-by-step explanation:
1400 ml= 1400÷1000= 1.4 litres
(1.4/2.1)×100= 66.67%
hope it helps!!
Which ratios in the list below are equivalent. Select all that apply.
a
24 : 12
b
14 : 28
c
10 : 5
d
18 : 2
e
9 : 4.5
Answer:
a, c, and e are equivalent.
Step-by-step explanation:
They equal to 2.
