Answer:
+2
Step-by-step explanation:
Can somebody help me? Will mark brainliest!
If f(x) = 3x - 1 and 2f(b) = 28, what is the value of f(2b)?
Answer:
=29
Step-by-step explanation:
2f(b)=28
divide by 2
f(b)=14
f(b)=3b-1
3b-1=14
add 1 on both sides
3b=15
divide by 3
b=5
f(5)=14
let's plug that in
f(2×5)=3(2×5)-1
f(10)=30-1
f(10)=29
The value of f(2b) is 29 if f(x) = 3x - 1 and 2f(b) = 28 the answer is 29.
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
We have:
f(x) = 3x - 1 and 2f(b) = 28
Plug x = b
f(b) = 3b - 1
2f(b) =2(3b - 1)
2f(b) = 28
28 = 2(3b - 1)
b = 5
f(2b) = f(2(5)) = f(10)
f(10) = 3(10) - 1
f(10) = 30 - 1 = 29
Thus, the value of f(2b) is 29 if f(x) = 3x - 1 and 2f(b) = 28 the answer is 29.
Learn more about the function here:
brainly.com/question/5245372
#SPJ2
Complete the table using equivalent ratios.
21:6
7:__
__:4
Answer:
7:2
14:4
Step-by-step explanation:
Select all that apply.
Which of the following statements are true of this equation? Select all that apply.
5 1/6 divided by 2 5/12 = 2 4/29
Answer:
The answer to this question is 2.137931034
Step-by-step explanation:
Just divide it by a calculator.
A caterer has 5 rolls. He is ordering more rolls. He can order up to 9 packages of rolls and each package contains 12 rolls. The caterer cannot order partial packages. The function that models the number of rolls the caterer has is f(p)=12p+5, where p is the number of packages he orders.
What is the practical domain of the function?
Giving points and brainliest.
Answer:
1-9 inclusive
Step-by-step explanation:
Which number is greater . 84 or 9.3
Answer:
9.3
Step-by-step explanation:
9.3 is greater because 9.3 has a bigger value than .84 because .84 is in the hundredths place which is less than the unit digit which is 9 from 9.3
Hope this helps!
The weight of an object on Earth varies directly as the weight of the same object on the moon. A 300 pound object on Earth would weigh 48 pounds on the moon. How much would a 75 pound object on Earth weigh on the moon? (Type your number answer. NO LABELS) *
Answer: 12 pounds.
Step-by-step explanation:
To solve this question, we'll use the direct proportion which is.
y = kx
Where,
y = weight on moon = 48 pounds
x = weight on Earth = 300 pounds
k = Unknown
y = kx
48 = 300k
k = 48/300
k = 0.16
The weight that a 75 pound object on Earth would weigh on the moon will be:
y = kx
where,
y = weight on moon = Unknown
k = 0.16
x = weight on Earth = 75 pounds
y = kx
y= 0.16 × 75
y = 12 pounds
The weight on the moon will be 12 pounds.
what error did katerina likely make?
Answer:
Katerina took the reciprocal of y/x
Answer:
jjjjjjjjjjyyyy
tyyyyy
en la escuela de Mario se construye una cancha de baloncesto a partir del dibujo a escala
Answer:que?
Step-by-step explanation:
Answer:
· Dibuja la cancha de Baloncesto con medidas a escala #escudomania #aprenderadibujar #dibujarfacil Hola, bienvenido a este canal #escudomania, aqui encontraras...
Step-by-step explanation:
How to solve y=4x+2 and 2x+y=8 using substitution?
Answer:
X=1
Step-by-step explanation:
Marita's nose is 2 inches long and her head is 9 inches tall. Assume Mount Rushmore was carved using the same ratio. If Teddy Roosevelt's head is 60 feet tall, how long should his nose be? Round to the nearest foot, if necessary.
Mount Rushmore
President Roosevelt's nose should be approximately
A feet long.
Plz help it is due in 15 minuites
Answer:hey guys it’s 13
Step-by-step explanation:
Don’t have an explanation but my teacher just said so and he’s smart so trust me
i got 260 but it’s wrong lol
Answer:
260 should be correct.
General Formulas and Concepts;
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define expression
6² · (16 + 19) - 10³
Step 2: Evaluate
Parenthesis (Add): 6² · 35 - 10³Exponents: 36 · 35 - 1000Multiply: 1260 - 1000Subtract: 260Answer:
It's 260, maybe the system is wrong?
Step-by-step explanation:
6^2(16+19)-10^3
add the numbers in the parentheses
6^2(35)-10^3
simplify the exponents first
36(35)-1000
1260 - 1000
260
Describe the transformation that moved Figure A to Figure B?
A) Reflect over the x-axis
B) Reflect over the y-axis
C) Rotate 90 degrees clockwise about the origin
D) Rotate 180 degrees about the origin
Answer:
D
Step-by-step explanation:
Its kinda hard to explain but its the answer
All I know is that the answer is F. How do I get to the answer F?
Answer:
8 inches on each side
Step-by-step explanation:
Help me solve this problem please
Answer: A
Step-by-step explanation: If you fill in the x-intercept and the y-intercept and solve -4(2) + 20 = 12 And -4(3) + 20 = 8
if you solve for those you would get your y-intercept
M is the midpoint of AB. A is at (-5, 1) and M is (-1,4). Find the coordinates of B. Select one: O a (-3.2.5) O b.(-1.4) O c. (2,5) O d.(3,7)
Answer:
A (-3, 2.5)
Step-by-step explanation:
Midpoint formula is m=(x1 + x2/2), (y1 + y2/2)
So add the xs: -5 + -1 = -6
And the ys: 1 + 4 = 5
Then divide them by 2
(-3, 2.5)
Find the slope of the line that passes through each pair of points: (8, -2) , (1, 1)
Answer:
3/-7
Step-by-step explanation:
Using the equation [tex]M=\frac{Y_{2}-Y_{1}}{X_{2}-X_{1}}[/tex] where M is slope, you take (1--2) 1+2/1-8 and you get 3/-7.
Marshall bought 10 bags of chips for his school party. A bag of plain chips cost $2.00, and a bag of flavored chips cost $2.50. He spent a
total of $23.00 on chips. How many bags of flavored chips did he buy?
A. 2
8
OB. 4
O C6
OD 8
Answer:
6 bags of flavored Chips .
Step-by-step explanation:
❗️❗️PLEASE HELP QUICK❗️
(a)Find the greatest common factor of 15 and 10.
(b)Use the GCF to factor 15 -10.
(a) GCF = ?
(b) 15 – 10 = ? x ( ? - ?)
Firefighters need to use a 60-foot ladder to save a child. She is 50 feet above street
level. To the nearest tenth of a foot, how far from the bottom of the building must the
ladder be placed in order to reach the child exactly?
Answer:
The ladder must be placed at a distance of 33.2 feet from the bottom of the building
Step-by-step explanation:
From what we have here, we are looking at a right angled triangle with the hypotenuse which is the length of the ladder
The height of the child is 50 feet from ground level
So we need to get the third side of the triangle
We can get this by considering the use of Pythagoras’ theorem
This will give us the length of the third side of the triangle
From Pythagoras’ the square of the hypotenuse is equal the sum of the squares of the two other sides
Let the unknown side be x
Thus;
60^2 = 50^2 + x^2
x^2 = 60^2 - 50^2
x^2 = (60-50)(60+50)
x^2 = (10)(110)
x^2 = 1100
x = square root of 1100
x = 33.166
To the nearest tenth, this is 33.2 feet
Can h help with this?
Abby has just started training for a marathon. She ran 15 miles in total during her first week of training. She wants to add an additional 2 miles to her weekly total during each subsequent week. Write an explicit rule for the arithmetic sequence that represents this situation, and use it to find how many miles Abby will run during her twelfth week of training. please show how you got your answer!!
Answer:
204 miles i think
Step-by-step explanation:
4. Find the slope of the line through the
points A(8,7) and B(5,-2).
Explanation:
Answer:
Slope equals to 3
Step-by-step explanation:
-2-7=-9 over 5-8=-3. You then divide the 9 by 3 and because they are both negative they equal a positive.
Angle a and b are vertical angles. If m angle a = (5x- 4) degree and m angle b = (2x - 1) degree. Find value of x. WILL MARK BRAINLIEST !!!!!!!!!!!!!!!
Answer:
Since the 2 angles are vertical angles:
5x-4=2x-1
3x=3
x=1
help, please!!!!!!!!!
Can someone please help me sort them out into True, Not True and Cannot Be Determined
Answer:
the first, second, and fifth
Step-by-step explanation:
hope this helps :-)
4. Steve worked 37.5 hours last week for $15.00 an hour. What is his gross pay for the
week?
Is this a function? Can you show your work on how you got the answer plz?
Answer:
yes it is a function because the x does not repeat itself
Step-by-step explanation:
In class of 30 students there are 16 girls what is the ratio of boys to girls in the class
Answer:
No. of boys in class = 30-16=14
so,ratio=14:16
=7:8
how do you find the power of the power
Answer:
When raising a power to a power in an exponential expression, you find the new power by multiplying the two powers together. For example, in the following expression, x to the power of 3 is being raised to the power of 6, and so you would multiply 3 and 6 to find the new power.
Step-by-step explanation: