Answer:
yreflection in y-axis (x, y) → (-x, y) **the sign of the x-coordinate changes, the y value stays the same**
A'(1, 4)
B'(5, 8)
C'(5, 4)
D'(4, 2)
Step-by-step explanation:
Answer:
A'(1, 4)
B'(5, 8)
C'(5, 4)
D'(4, 2)
Step-by-step explanation:
took the test
The radius of a circle is 4 meters. What is the circle's circumference?
r=4m
Use 3.14 for pie
This value is approximate because pi = 3.14 is approximate
===========================================================
Work Shown:
r = 4 = radius
pi = 3.14 approximately
C = circumference
C = 2*pi*r
C = 2*3.14*4
C = 25.12
The circumference is approximately 25.12 meters.
Side note: The circumference is the same as the perimeter of a circle.
-3(1+6r)=14-r
in class need help
Answer:
r = -1
Step-by-step explanation:
-3(1+6r)=14-r
Distribute the -3
-3*1 -3*6r = 14-r
-3 -18r = 14 -r
Add 18r to each side
-3-18r+18r = 14-r+18r
-3 = 14+17r
Subtract 14 from each side
-3-14 = 14+17t-14
-17 = 17r
Divide by 17
-17/17 = -17r/-17
-1 =r
over which of the following approximate intervals is the water level decreasing
pls help !
Answer:
B and C
Step-by-step explanation:
It is going down
What does A represent in "BA+AB+AB+CAA"
Answer:
that looks hard sorry i cant help you good luk .
Solve for p.
98 = 4p + 38
Answer:
P=15
Step-by-step explanation:
Answer:
P=15
Step-by-step explanation:
first:
98-38=60
4p=60
60÷4=15
P=15
hope that helped :)
Solve the following system of equations using substitution, elimination, or elimination by multiplication.
Estimate the value of 102.3 divided 4.7
Answer: 21
Step-by-step explanation: 21.7659574 would be the exact awnser but to estimate you can just say 21
Answer:
It is actually 20.
Step-by-step explanation:
Need Help Please!!!!
Answer:
lol hard!
Step-by-step explanation:
David is running a unique coffee shop. He
charges $25 per coffee. If a customer pays
$67 for 2 coffees, how much change should
be given back by David?
A pie crust recipe calls for 2 cups of butter for each 3 cups of flour. Elliette is making enough crust to use up 8 cups of flour. How many cups of butter will she need?
Lincoln has dimes and y quarters. He has no more than 24 coins worth at least $3.50 combined. Solve this system of inequalities graphically and determine one possible solution
Answer:
let's define:
x = number of dimes
y = number of quarters.
Then the total amount of money that he has is:
x*$0.10 + y*$0.25
Now we know that:
"He has no more than 24 coins"
Then:
x + y ≤ 24
"...worth at least $3.50 combined"
x*$0.10 + y*$0.25 ≥ $3.50
Then we have two inequalities:
x + y ≤ 24
x*$0.10 + y*$0.25 ≥ $3.50
To graph these, it is easier to write them as linear equations in the slope-intercept form.
Then we need to isolate the y-variable in both equations.
we will get:
y ≤ 24 - x
y ≥ $3.50/$0.25 - x*$0.10/$0.25
In the first equation we have:
"y is smaller or equal than the line"
Then this is graphed with a solid line, and we shade all the region below the line
For the second equation, we have the inverse case, then it will be graphed with a solid line and we need to shade all the region above the line.
The solutions for the system will be all these values that are in both shaded regions.
The graph can be seen below.
In the graph, we can see that one acceptable solution can be:
x = 5
y = 15
or
x = 6
y = 16
The only other restriction we should add is:
x ≥ 0
y ≥ 0
Because Lincoln can not have a negative number of coins, so we can only find solutions in the first quadrant.
A union negotiates for a cost of living raise of 7%. What is the raise for a union member whose salary is $40,240? What is this person’s new salary?
$2816.80 is the raise
21 is 30% of 70
Hiiioo Can someone please help me
Question: ABCD is a rhombus. It has vertices located at A(10,6), B(7,2) and C(7,7). What are the coordinates of vertex D?
A. (10,3)
B. (10,11)
C.(10,7)
D. (10,-1)
2x + 3 = 5, then, x=
Answer:
x= 1
Step-by-step explanation:
2x1=2+3=5
Answer:
x is equals to 1..........
I NEED THE VALUE OF X PLEASE HELP!
Answer: 25.81
Step-by-step explanation:
We can see its a right triangle and then with Squareroot(21^2 + 15^2) = 25.81
When Kenji drove to work, the temperature in town
was 40°F. When he came home, the temperature was
58°F. Which equation can be used to find t, the change
in temperature?
Answer: 40 + t =58
I just did the problem and the other ones don’t make sense
im going down to S o U t H p A r K
Answer:
ok have a nice time
Step-by-step explanation:
Answer:
I totally agree *brainly don't take down my answer pls*
Step-by-step explanation:
Riko is ordering a submarine sandwich for 6 people. Each person will eat the same size section of the sandwich. The section size should be at least 4 inches. What is the length of the smallest sandwich Riko should order?
Answer: 24 inches.
Step-by-step explanation:
If each section length is 4 inches, then that means that each person will need to eat a sandwich section that is at least 4 inches.
There are 6 people, which means that each person will eat 4 inches of a sandwich.
To calculate the length of the sandwich Riko should order, we should mutliply 6 by 4, because there are 6 people and each person will be eating 4 inches of a sandwich.
6 x 4 = 24.
In conclusion, the smallest sandwich Riko should order is a sandwich that is 24 inches long.
(Quick Note: This is also the smallest sandwich Riko could order, because the text states that each person eats at least 4 inches.)
Tom needs to buy a wood board long enough to cut into 4 pieces,
each of which needs to measure 8.5 inches. Estimate to the nearest inch
7
how long of a board Tom needs to buy.
A. 36 inches
B. 32 inches
C.40 inches
D. 9 inches
Please help me ASAP
PLEASE HELP ME PLEASE
Answer:
B
Step-by-step explanation:
(f – g)(x) = f (x) – g(x)=
[tex]3 {x}^{2} - 4x + 3 \\ - 2 {x}^{2} + 6x + 4 \\ = 5 {x}^{2} - 10x - 1[/tex]
what's a variable?????????????
Answer:
In mathematics, a variable is a symbol which functions as a placeholder for varying expression or quantities, and is often used to represent an arbitrary element of a set. In addition to numbers, variables are commonly used to represent vectors, matrices and functions. In science, there is a independent and dependent variable.
Step-by-step explanation:
Answer:
VARIABLE MEANING: A variable is a letter used to describe an unknown number. A quantity that can change or vary, taking on different values. A letter or symbol representing a varying quantity.
CO EFFICIENT MEANING: A number next a variable behind the letter examples: 4m -3x 6y 5w
EXPRESSION MEANING: An expression is a sentence with a minimum of two numbers and at least one math operation. This math operation can be addition, subtraction, multiplication, and division.
TERM MEANING: It's either a single number or variable, or numbers and variables multiplied together. Terms are separated by + or − signs, or sometimes by divide.
Please help me I just want to know what is wrong with that. PLEASE
Answer:
---> --->
WS DS
Step-by-step explanation:
5 is not more than x
Answer:
well we don't don't know...because x is unknown
Answer:
There no problem but 5<=x in equation form
Step-by-step explanation:
That way because x can either be five or higher
what is the answer to the question -6=n+5n
Answer:
-1=n I believe would be the answer.
Someo ne pllllzzzz help me asap i will give brain thingy and 20 points!
Part 1) Finding the inverse
Let x = r and y = H(r)
We have the equation y = 6240(1 + x/100)^t which is the same as saying y = 6240(1 + 0.01x)^t since 1/100 = 0.01
From here, swap x and y to get the equation x = 6240(1+0.01y)^t
Let's solve for y
x = 6240(1+0.01y)^t
6240(1+0.01y)^t = x
(1+0.01y)^t = x/6240
1+0.01y = (x/6240)^(1/t)
0.01y = (x/6240)^(1/t)-1
100*0.01y = 100*((x/6240)^(1/t)-1)
y = 100*((x/6240)^(1/t)-1)
y = 100*(x/6240)^(1/t) - 100
This becomes r = 100*(H/6240)^(1/t) - 100 after we replace y with r and x with H. Note the r and H swapped places, just like x and y did. Earlier we had H isolated on the left, but now r is isolated on the left.
We could write r(H) = 100*(H/6240)^(1/t) - 100 to mean the same thing.
So what exactly does this inverse function do? Well the original function tells us the number of households for any given growth rate, which is r.
The inverse function swaps things around to allow us to find the growth rate if we know how many households there are. We're working backwards. In both cases, t is held to some constant fixed value.
===========================================================
Part 2) Finding the growth rate if the number of households is 7800 after 3 years.
We're going to plug in H = 7800 and t = 3 into the inverse function we found to determine the value of r, or r(H)
r(H) = 100*(H/6240)^(1/t) - 100
r(7800) = 100*(7800/6240)^(1/3) - 100
r(7800) = 7.72173450159419
You'll need your calculator to get this approximate value. After rounding to two decimal places, we get r(7800) = 7.72
Since r = 7.72, this means the growth rate is 7.72%
help please i don’t understand
Step-by-step explanation:
perimeter = sum of all sides of figure
perimeter = 18cm + 18cm + 8cm + 18cm + 30cm + 18cm + 18cm + 4cm
perimeter = 132cm
plz follow me
1. Mrs. Gonzalez signed up to bring two dozen cupcakes for the school bake sale. She made one dozen, but her children ate three of the cupcakes. What expression used to determine, .c the number of cupcakes Mrs. Gonzalez needs to bake?
Answer:
4
Step-by-step explanation:
It is half of 8
A dozen is 12 if there's 2 that's 24 cakes
If they ate 3 now it's 21
Decide that by 3 now it is 8
The mass of a car is 1000 kg. How much force would be required to accelerate the car at a rate of 5 m/sec^2 ?
Answer:
5000 N
Step-by-step explanation:
Given:
Mass m = 1000 kg
Acceleration a = 5 m/s^2
Force F =?
By Newton's first law of motion:
F = ma
F = 1000 * 5
F = 5000 N
(N = Newton, unit of force is Newton and is written as N. )
Solve the following equation for x. Express your answer in the simplest form.