Answer:
f(3) = 2
Step-by-step explanation:
To evaluate f(3), substitute x = 3 into f(x), that is
f(3) = - 2(3) + 8 = - 6 + 8 = 2
The line segment OA is congruent to which line segment?
A.) OB
B.)PB
C.)OP
D.)PM
y = 4x+1
3x + 2y = 13
Please and quickly
Answer:
x=1 and y = 5
Step-by-step explanation:
you add y = 4x+1 into the equation
3x+2(4x+1)=13
3x + 8x + 2 = 13
11x = 11
x = 1
then you just add the x into the equation y = 4x+1
4(1)+1
y = 5
A yacht travels 20 miles in 60 minutes. How far does the yacht travel per minute? *
help me pleaseeeeeeeeeeeeee
i will give 20 points
Answer:2/7, 3/7, 6/7
Step-by-step explanation:
Answer:
2/7 , 3/7 , 6/7
Step-by-step explanation:
Pleasee pleeeaassee help. TY
What are 2 ways i could solve 7-(4p+3)=-3(p+2)-(2p+3)
Answer:
Simplifying
7 + -1(4p + 3) = -3(p + 2) + -1(2P + 3)
Reorder the terms:
7 + -1(3 + 4p) = -3(p + 2) + -1(2P + 3)
7 + (3 * -1 + 4p * -1) = -3(p + 2) + -1(2P + 3)
7 + (-3 + -4p) = -3(p + 2) + -1(2P + 3)
Combine like terms: 7 + -3 = 4
4 + -4p = -3(p + 2) + -1(2P + 3)
Reorder the terms:
4 + -4p = -3(2 + p) + -1(2P + 3)
4 + -4p = (2 * -3 + p * -3) + -1(2P + 3)
4 + -4p = (-6 + -3p) + -1(2P + 3)
Reorder the terms:
4 + -4p = -6 + -3p + -1(3 + 2P)
4 + -4p = -6 + -3p + (3 * -1 + 2P * -1)
4 + -4p = -6 + -3p + (-3 + -2P)
Reorder the terms:
4 + -4p = -6 + -3 + -2P + -3p
Combine like terms: -6 + -3 = -9
4 + -4p = -9 + -2P + -3p
Solving
4 + -4p = -9 + -2P + -3p
Solving for variable 'p'.
Move all terms containing p to the left, all other terms to the right.
Add '3p' to each side of the equation.
4 + -4p + 3p = -9 + -2P + -3p + 3p
Combine like terms: -4p + 3p = -1p
4 + -1p = -9 + -2P + -3p + 3p
Combine like terms: -3p + 3p = 0
4 + -1p = -9 + -2P + 0
4 + -1p = -9 + -2P
Add '-4' to each side of the equation.
4 + -4 + -1p = -9 + -4 + -2P
Combine like terms: 4 + -4 = 0
0 + -1p = -9 + -4 + -2P
-1p = -9 + -4 + -2P
Combine like terms: -9 + -4 = -13
-1p = -13 + -2P
Divide each side by '-1'.
p = 13 + 2P
Simplifying
p = 13 + 2P
Step-by-step explanation:
Mr. Johnson bought flowers to plant in flats in his yard. Each flat has 6 yellow flowers and 8 red flowers. Simplify the expression 6f+8f
Answer:
the simplified expression is 14f.
Step-by-step explanation:
Given expression;
6f + 8f
This expression is simplified by adding the two terms together since they are like terms.
6f + 8f = 14f
Therefore, the simplified expression is 14f.
can someone help me please?
Answer: > (1st answer choice)
Step-by-step explanation: 0.9 is greater than 0.81
Cheryl is now x years old.
Her father is 24 years older the. Cheryl
Her brother is 2 years younger than Cheryl. Find her brother's age in terms of x.
Please help!
Answer: x-2
Step-by-step explanation:
Given
The present age of Cheryl is x years
Father's is 24 years older than Cheryl i.e. x+24
her brother is 2 years younger than her i.e. Present age of Cheryl - 2 years
=(x-2) years
1 - 2x = -x -3
what's x?
Answer:
x=3
Step-by-step explanation:
here you go and please consider brainliest
please help with this one !
Answer:
the answer is the first one which is a
Answer:
A
Step-by-step explanation:
Distributive property is the stuff you do in the parentheses. Here's an example-
6(x+1)=13
6 times x would be 6x and 6 times 1 would be one
6x+1=13
Separate the x
6x+1=13
-1 -1
6x=12
Divide
x=2
deb and luke go to the pi-rate entertainment store to purchase cds (c) and dvds (d). deb buys 3 dvds and 2 cds for $63 (before sales tax) at the same item prices, luke pays $46 for 1 dvd and 4 cds (before sales tax). write and solve a system of equations to determine the cost of 1 cd and dvd
We are given here the individual costs of DVD and CD as well as the total sales and the number of items sold on one day. To solve the number of DVDs and CDs sold each, we devise two independent linear equations:
(1) x + y = 39
(2) 4x + 7y = 204
x- number of DVDs; y - number of CDs
solving, x= 23 DVDs
PLZ ANYONE help me PLZHELP ME ITS DUE RIGHT NOW
pls help
my friend it’s due in an hour .
Students were selected at random in a local high school to see if there was an association between gender and
participation in extracurricular activities. What percent of females participate in extracurricular activities?
(1) 25%
(3) 44%
(2) 53%
(4) 72%
Extracurricular
No Extracurricular
Total
Gender
Male Female Total
24
19 43
16 17 33
40 36 76
===========================================================
Explanation:
The question asks "What percent of females participate in extracurricular activities?" This means we only focus on the second column. There are 36 women, and of this total, 19 are in extracurricular activities.
Dividing the two values leads to approximately 19/36 = 0.52777 which rounds to 0.53
Then we move the decimal to the right two spots to get 53%
Roughly 53% of the female students participate in extracurricular activities.
On a certain hot summer's day, 232 people used the public swimming pool. The daily prices are $1.50 for children and $2.25 for adults. The receipts for admission totaled $435.75. How many children and how many adults swam at the public pool that day?
Answer:
children is 115 and adult is 117
Step-by-step explanation:
Given
let the number of children be x
and the number of adults be y
so
x+y=232----------------1
We are told that the daily prices are $1.50 for children and $2.25 for adults
so
1.5x+2.25y= 435.75-------------------2
Hence the system of equation for the situation is
x+y=232-----1
1.5x+2.25y= 435.75-------2
From 1 x=232-y
Put this in Eqn 2
1.5(232-y)+2.25y= 435.75
348-1.5y+2.25y= 435.75
collect like terms
-1.5y+2.25y= 435.75-348
0.75y=87.75
divide both sides by 0.75
y= 87.75/0.75
y=117
the number of adults is 117
put y= 117 in eqn 1
x+117=232
x=232-117
x=115
The number of children is 115
If a ball is thrown straight up into the air with an initial velocity of 85ft/s its height in feet after t seconds is given by y=85t - 16t^2. Find the average velocity for the time period beginning when t=1 and lasting 0.1, 0.01, 0.001
Answer:
[tex]51.4\ \text{m/s}[/tex]
[tex]52.84\ \text{m/s}[/tex]
[tex]52.984\ \text{m/s}[/tex]
Step-by-step explanation:
The function of displacement is
[tex]y=85t-16t^2[/tex]
[tex]\text{Average velocity}=\dfrac{\text{Total displacement}}{\text{Time elapsed}}[/tex]
Lasting 0.1 s
[tex]v_1=\dfrac{y(1.1)-y(1)}{1.1-1}\\\Rightarrow v_1=\dfrac{85\times 1.1-16\times 1.1^2-(85-16)}{0.1}\\\Rightarrow v_1=51.4\ \text{m/s}[/tex]
The average velocity is [tex]51.4\ \text{m/s}[/tex]
Lasting 0.01 s
[tex]v_2=\dfrac{y(1.01)-y(1)}{1.01-1}\\\Rightarrow v_2=\dfrac{85\times 1.01-16\times 1.01^2-(85-16)}{0.01}\\\Rightarrow v_2=52.84\ \text{m/s}[/tex]
The average velocity is [tex]52.84\ \text{m/s}[/tex]
Lasting 0.001 s
[tex]v_3=\dfrac{y(1.001)-y(1)}{1.001-1}\\\Rightarrow v_3=\dfrac{85\times 1.001-16\times 1.001^2-(85-16)}{0.001}\\\Rightarrow v_3=52.984\ \text{m/s}[/tex]
The average velocity is [tex]52.984\ \text{m/s}[/tex]
30 POINTS Please help! Triangle MNO is an isosceles triangle in which only one angle measures 120º. What is the angle measure of one of the two congruent angles?
What is X:?
Answer:
One, or both the congruent angles measure 30 degrees
Step-by-step explanation:
180 - 120 = 60
60 / 2 = 30
30 + 30 + 120 = 180
Yes
Answer:
30°
Step-by-step explanation:
180-120=60
60/2 = 30
A cylinder has a volume of 3201 cubic inches and a height of 5 inches.
What is the radius of the cylinder?
Answer:
r≈14.28in
h Height
5
in
V Volume
3201
in³
Using the formula
V=πr2h
Solving forr
r=V
πh=3201
π·5≈14.27522in
There are two solutions to the equation 22 = 2.
Select all of the statements that describe the positive solution of the equation.
The positive solution is 1.
The positive solution is a rational number.
The positive solution is an irrational number.
The positive solution is a repeating decimal.
The positive solution is a value between 0 and 1.
The positive solution is a value between 1 and 2.
Helppppp MEEEE
Answer:
I belive is the 2nd answer choice because it seems like is a rational number
Which of the following best describes the graph above?
A.
neither a relation nor a function
B.
function only
C.
relation only
D.
both a relation and a function
Answer:
Option C
Step-by-step explanation:
To test a graph whether it represents a function or relation we conduct a vertical line graph.
If the vertical line intersect the graph at two different points, graph represents a relation only.
By analyzing the given graph with the vertical line test,
Since, a vertical line (x = -4) intersect the graph at two points (y = -1 and y = 5),
Given graph represents a relation only.
Option C is the answer.
Find the measure of BC
Answer:
9
Step-by-step explanation:
im pretty sure the snawer is 9 sorry if im wrong
Simplify 2x/5 divided by 3/x
Answer:
2x^2/15.
Step-by-step explanation:
2x /5 / 3/x Invert the 3/x and multiply:
= 2x/5 * x/3
= 2x^2/15.
HELP
Solve the system of equations below using substitution, elimination or linear combination.
x+2y=−7
3x−8y=7
Answer:
4x+-6y=7
Step-by-step explanation:
hope this helps
Answer:
x= -3
y= -2
Step-by-step explanation:
(1) x + 2y= -7
(2) 3x - 8y= 7
Balance a term in both equations for elimination
Equation (1) x (3) 3x + 6y= -21
Equation (2) x (-1) -3x + 8y= -7
After the calculation, it will result to:
14y= -28
Divide both sides by the coefficient of y
This will result to:
y= -2
From equation (1):
x + 2y= -7
Insert the unit of y (-2)
x + 2(-2)= -7
x - 4= -7
Collect like and unlike terms
x= 4 -7
x= -3
TO CHECK:
3x - 8y= 7
Insert the solved units
3(-3) - 8(-2)= 7
-9 - (-16)= 7
-9 + 16= 7
16 - 9= 7
CORRECT!!!
Which expression can be used to find the zeros of the function f(x) = 4x2 + 2x - 12?
Answer:
x=-2 and x=-12
(-12,-2)
1. Jada made 14 cups of blueberry jam and divided the jam equally among 8
containers. How much jam went in each container? *
Answer: 1/75!
14/8 = 1.75
Select the procedure that can be used to show the converse of the
Pythagorean theorem using side lengths chosen from 3 feet, 4 feet, 5 feet,
and 6 feet.
A. Knowing that 32 +42 = 52, draw the 3-foot side and the 4-foot side
with a right angle between them. The 5-foot side will fit to form a
right triangle.
B. Knowing that 32 +52 + 62, draw the 3-foot side and the 5-foot side
with a right angle between them. The 6-foot side will fit to form a
right triangle.
C. Knowing that 32 + 42 = 52, draw any two of the sides with a right
angle between them. The third side will fit to form a right triangle.
D. Knowing that 42 + 52 < 62, draw the 4-foot side and the 5-foot side
with a right angle between them. The 6-foot side will fit to form a
right triangle
Answer:
a
Step-by-step explanation:
what is 3 divide by 40?
Answer:
0.075
Step-by-step explanation:
You can do it the bus way method(on paper')
or use a calculator
hope this helped have a great day
0.075
0.075
40 / 3.
2.80
___________
200
200
_____________
2x-1=4
-2x+y=8
Find the value of x
Answer:
Step-by-step explanation:
2x=5
x=2.5
O
Jill is studying a strange bacterium. When she first looks at the bacteria, there are initially.
100 cells in her sample. The next day, there are 300 cells (Day 1). Intrigued, she comes
back the next day to find that there are 900 cells (Day 2)!
bo.
How many bateria cells will there be when Jill looks at her sample on Day 4?
Answer:
8100
Step-by-step explanation:
We first see that in the first day it tripled from 100 to 300 this is the pattern that is seen throughout this whole experemint, we can see that the cells triple again on the second day to get 900 cells from this. It is likely to say that they will triple again on the third day to get 2100 and again on the fourth to get 8100
