Answer:
25x2 = 16
x2 = 16/25
x = ±4/5
Step-by-step explanation:
Use the slope-intercept form to graph the equation y=5/4x-1
Answer:
m = 5/4
(0,-1),(4/5,0)
Join the dots to obtain the graph!
Simplify: 3(2a + b) - 5(a – 3b)
The total cost of one appetizer and four meals is $89. The price of the appetizer is $9 and each meal is the same price as m. What is the price of one meal? M = ?
Answer:
$20
subtract 9 from 89 beacuse we need to find how much is 1 meal and the 9 represents 1 appetizer
89-9=80
since there are 4 meals divide 80 by 4
80÷4= 20
and u get $20 per meal
Step-by-step explanation:
The cost of an appetizer = 9
The cost of a meal = m
The cost of an appetizer and 4 meals = 9 + 4(m) = 89
4m +9 = 89 Your equation, solve for m
4m - 9 + 9 = 89 - 9 Bring the constants to one side
4m = 80 Simplification
4m/4 = 80/4 isolating the variable
m= 20 Your answer!!!
A meal costs 20 dollars
I hope this helps!!!
If you wanted to check the answer...
Do the same thing but substitute for m
4 (20) + 9 = 89
80 + 9 = 89
89 = 89
The answer should be correct
Have a nice day!!!
write the sentence as an inequality. thirteen is at least the difference of a number v and 1.
Answer:
v - 1 ≥ 13.
Step-by-step explanation:
'is at least' is written as ≥ ( greater or equal to).
v - 1 ≥ 13.
7th grade math help me please :)
Answer:
$288
Step-by-step explanation:
16+8=24
$24 per book
24 x 12 = 288
How do you find the average rate of change for f(x)=9-x^2 between two points: x=0 to x=3?
Please I have a final tomorrow and I’m clueless
Answer:
The average rate of change is -3.
Step-by-step explanation:
We are given the function:
[tex]f(x)=9-x^2[/tex]
And we want to find the average rate of change from x = 0 to x = 3.
In other words, we will compute the function at the two endpoints, and then find the slope of the line that crosses the two points.
For our first endpoint at x = 0, our function evaluates to:
[tex]f(0)=9-(0)^2=9[/tex]
So, our first point is (0, 9).
For our second endpoint at x = 3, our function evaluates to :
[tex]f(x)=9-(3)^2=0[/tex]
So, our second point is (3, 0).
Then by the slope formula, our average rate of change will be:
[tex]\displaystyle m=\frac{0-9}{3-0}=\frac{-9}{3}=-3[/tex]
thank you so much for you help
A spinner is evenly divided into red, yellow, blue, green and orange sections. What is the probability of spinning a yellow?
Answer (round) to the hundredth place value.
Answer:
The probability of spinning a yellow is 0.20
Step-by-step explanation:
red= 20%
yellow= 20%
blue=20%
green=20%
orange=20%
20%=0.20
Yolanda is saving money to buy a bike. She has $63 and is going to save an additional $9 each week. The bike costs $198. In how many weeks will she have
enough money to buy the bike?
Answer: 15 weeks
Step-by-step explanation:
198-63=135
135/9=15
HELP QUICKLY!!
Tell whether the sequence is arithmetic. If it is, what is the common difference?
-19.-11, -3,5,...
Oyes; 5
Oyes; 6
Oyes; 8
Ono
Answer:
the answer to this sequence is that: u count the difference between 19 and 11 , which is 8.
again try to see if the difference is same between 11 and 3, which is again 8.
so the commin difference in this sequence is = 8
A fruit basket is filled with 888 bananas, 333 oranges, 555 apples, and 666 kiwis. For every 333 kiwis, there are 444 \_\_\_\_____\_, \_, \_, \_. Choose 1 answer: Choose 1 answer: (Choice A) A Bananas (Choice B) B Oranges (Choice C) C Apples
Answer:
A. Bananas
Step-by-step explanation:
Bananas = 8
Oranges = 3
Apples = 5
Kiwis = 6
For every 3 kiwis, there are 4 ______
Kiwi : bananas = 6 : 8
6 : 8 = 6/8
= 3 / 4
= 3 : 4
Kiwi : oranges = 6 : 3
= 6 / 3
= 2 / 1
= 2 : 1
Kiwi : apples = 6 : 5
For every 3 kiwis, there are 4 bananas
A. Bananas
How do you solve 36-3(2-4x)=0
Answer:
X=0
Step-by-step explanation:
36-3(2-4x0)
33(-2x0)
33(0)
=0
help wklsksbsbkskakksjs
Answer:
402
Step-by-step explanation:
If f'(x)=3x^2+2x and f(2)=3 then f(1)=
helppppp
Answer:
[tex]f(1)=-7[/tex]
Step-by-step explanation:
We are given the derivative:
[tex]f^\prime (x) = 3 x^2 + 2x[/tex]
And the initial condition that f(2)=3.
And we want to find f(1).
So, to find our original function f(x), we will find the antiderivative of f'(x). Hence:
[tex]\displaystyle f(x)=\int f^\prime(x)\, dx=\int3x^2+2x\, dx[/tex]
By integrating, we acquire:
[tex]f(x)=x^3+x^2+C[/tex]
Since we know that f(2)=3:
[tex]3=(2)^3+(2)^2+C[/tex]
It follows that:
[tex]C=-9[/tex]
Therefore, our function is given by:
[tex]f(x)=x^3+x^2-9[/tex]
Therefore:
[tex]f(1)=(1)^3+(1)^2-9 = -7[/tex]
Here we want to solve a differential equation, we will find that our function is f(x) = x^3 + x^2 -9
Solving the differential equation.So we want to find f(x) such that we know f'(x).
We know that:
f'(x) = 3x^2 + 2x
To get f(x) we just need to integrate, we will get:
[tex]f(x) = \int\limits {3x^2 + 2x} \, dx = x^3 + x^2 + c[/tex]
Where c is a constant of integration.
Now, we know that f(2) = 3, with that we can find the value of c.
f(2) = 2^3 + 2^2 + c = 3
8 + 4 + c = 3
c = 3 - 12 = -9
So the function is:
f(x) = x^3 + x^2 -9
If you want to learn more about differential equations, you can read:
https://brainly.com/question/18760518
Helpppppppppppppppppppppppppppp
Answer:
x = 2
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityStep-by-step explanation:
Step 1: Define
10.5x - 1.9 = 19.1
Step 2: Solve for x
Add 1.9 to both sides: 10.5x = 21Divide 10.5 on both sides: x = 2Step 3: Check
Plug in x into the original equation to verify it's a solution.
Substitute in x: 10.5(2) - 1.9 = 19.1Multiply: 21 - 1.9 = 19.1Subtract: 19.1 = 19.1Here we see that 19.1 does indeed equal 19.1.
∴ x = 2 is a solution to the equation.
Today everything at a store is on sale the store offers a 20% discount the discounted price of the hat is $18 what is the regular price (The answer is not 21.6)
The answer is 22.5 But I don’t know how to get there
80% = $18
(divide both sides by 80 to find 1%)
1% = 0.225
(multiply both sides by 100 to find 100%)
100% = $22.50
Springboard Geometry Chapter 21 Mid-Unit Assessment
A carpenter leans a 20-tootador against a butang so
that an angle of 60' is formed between the door and
the ground. How many toet away from the building is
the bottom of the ladder
A
10
B
10v5n
С
2011
D
O A
I really don't know just say its o
A mystery number minus 6 gives you a result of 10. What is the mystery number?
The mystery number is 16 because 16 - 6 = 10.
To convert from 500 seconds to minutes you would use....
A. 1 second/60 minutes
B. 1 minute/60 seconds
C. 60 seconds/1 minute
D. 60 minutes/1 second
Answer:
B
Step-by-step explanation:
6785∆4 is a 6-digit number with one of its digit represented by ∆. What can be the value of ∆ if 6785∆4 is divisible by 9 ? pls anwer
Answer: The /\ is 6. The number is 6.
Explanation: 678564 ÷ 9 = 75396
CAN SOMEONE HELP ME ASAP??? THANK YOU.
Answer:
D- two more than a number multipled by seven
Step-by-step explanation:
brainiest?
you have to do what the equation says to solve the equation! good luck!
What is the direct variation equation for the chart? Please show all of your work!
Х
y
8
2
16
4
24
6
32
8
Answer:
Hope it helps u
Step-by-step explanation:
y∝ x
y=k*x
k=y/x
now putt the first point x=8 and y=2
we get k=2/8 =1/4
and also putt 2nd point ,
x=16,y=4 we get k=1/4 and similarly for 3rd and 4th point we also get k=1/4
hence the direct variation , equation become for all is same, that is
y=(1/4)x
Arthur travels for 3 hours on the freeway. His average speed is 55 mi/hr. How far does he travel?
Answer:
He travels 165 miles
Step-by-step explanation:
3 × 55=165Find the smallest value of k such that the LCM of
k and 6 is 60
Answer: The smallest valuest value for k is 10, such that LCM of k and 6 is 60.
Step-by-step explanation:
We know that, LCM = Least common multiple.
For example : LACM of 12 and 60 is 60.
If LCM of k and 6 is 60.
i.e. the least common multiple of k and 6 is 60.
Since, 10 x 6 = 60.
The smallest valuest value for k should be 10, such that LCM of k and 6 is 60.
Hence, the smallest value of k is 10.
Is RS perpendicular to DF? Select Yes or No for each statement. R (6, −2), S (−1, 8), D (−1, 11), and F (11 ,4) R (1, 3), S (4,7), D (3, 9), and F (15, 0) R (−5, −5), S (0, 2), D (8, 3), and F (1, 8)
I'll do the first one to get you started.
Find the slope of the line between R (6,-2) and S (-1,8) to get
m = (y2-y1)/(x2-x1)
m = (8-(-2))/(-1-6)
m = (8+2)/(-1-6)
m = 10/(-7)
m = -10/7
The slope of line RS is -10/7
Next, we find the slope of line DF
m = (y2 - y1)/(x2 - x1)
m = (4-11)/(11-(-1))
m = (4-11)/(11+1)
m = -7/12
From here, we multiply the two slope values
(slope of RS)*(slope of DF) = (-10/7)*(-7/12)
(slope of RS)*(slope of DF) = (-10*(-7))/(7*12)
(slope of RS)*(slope of DF) = 10/12
(slope of RS)*(slope of DF) = 5/6
Because the result is not -1, this means we do not have perpendicular lines here. Any pair of perpendicular lines always has their slopes multiply to -1. This is assuming neither line is vertical.
I'll let you do the two other ones. Let me know what you get so I can check your work.
Elimination equation:
5x-6y= 6
2x+9y= 10
Step-by-step explanation:
it's close to 6
.................
For which would you draw a solid boundary line and shade to the right?
x ≤ -3
x > -3
x ≥ -3
x < -3
Answer:
x ≤ -3
Step-by-step explanation:
For solid lines you would do ≤ or ≥, then for shading on the right side you would need < or ≤
A force of 84N is applied to an area of
15cm". Work out the pressure in N/cm².
cm3)
Answer: 5.6 N/cm^2
============================================
Work Shown:
Pressure = (Force)/(Area)
P = F/A
P = (84 N)/(15 cm^2)
P = (84/15) (N/cm^2)
P = 5.6 N/cm^2
For every square cm, 5.6 newtons of force is applied.
-------------
Extra info:
If you wanted to convert this to pascals, then you would need to convert 15 cm^2 to 0.0015 square meters. Then apply the formula above to get 56,000 pascals. 1 pascal is equivalent to 1 N/m^2.
A grain silo is a cylinder with a hemisphere on top. In the Happy Farms grain silo, the height of the cylindrical portion is 30 feet. The radius is 10 feet. The volume of a cylinder is given by V = πr2h.
1. How can you find the volume of a hemisphere?
2. What is the volume of the hemisphere? Show your work.
3. What is the volume of the cylinder? Show your work.
4. What is the total volume of the grain silo? Explain how you found your answer.
Answer:
1) The volume of a hemisphere of radius R is equal to half the volume of a sphere of radius R.
Where the volume of a sphere of radius R is:
V = (4/3)*pi*R^3
In this case, the radius is R = 10ft
And pi = 3.14
2) Now we can just solve that equation to get:
V = (1/2)*(4/3)*3.14*(10ft)^3 = 2,093.33 ft^3
Where the (1/2) comes because the volume of the hemisphere is half the volume of a complete sphere, as we already said above.
4) We know that the volume of a cylinder is:
V = pi*(r^2)*h
where:
pi = 3.14
r represents the radius. The radius of the cylinder will be the same as the radius of the hemisphere, then r = 10ft
h is the height of the cylinder, in this case, h = 30ft
Then the volume is:
V = 3.14*(10ft)^2*(30ft) = 9,420 ft^3
The total volume is equal to the sum between the volumes of the cylinder and the volume of the hemisphere.
Then the total volume is:
Volume = 9,420 ft^3 + 2,093.33 ft^3 = 11,513.33 ft^3
Answer:
1. How can you find the volume of a hemisphere?
The volume of a hemisphere is half the volume of a sphere. The volume of a sphere is equal to V = (4/3)*pi*R^3
2. What is the volume of the hemisphere? Show your work.
V = (4/3)*pi*R^3
We can substitute pi for 3.14 and R for 10, and since we are finding the volume of a hemisphere, we divide by 2.
V = (1/2)*(4/3)*3.14*(10ft)^3
V = (1/2)*(4/3)*3.14*(10ft)^3 = 2,093.33 ft^3
3. What is the volume of the cylinder? Show your work.
The volume of the cylinder is 9,420ft^3
3.14*(10^2)*30=9,420
4. What is the total volume of the grain silo? Explain how you found your answer.
The total volume is 11,513.33 ft^3.
9,420 ft^3 + 2,093.33 ft^3 = 11,513.33 ft^3
find the gcf 24 and 72. 16 and 18
Answer:
for 24 and 72 its 24 for 16 and 18 it is 2
Step-by-step explanation: