y+3 = 5(x+5)
y+3 = 5x+25 ... distribute
y = 5x+25-3 ... subtract 3 from both sides
y = 5x+22
y-5x = 22 ... subtract 5x from both sides
-5x+y = 22 .... is one possible answer
5x-y = -22 ... is another possible answer
The difference is that I multiplied both sides by -1 so that the A term becomes positive.
HELP !! ASAP !!
Find the zeros of the function f(x) = -5x2 + 4x - 1 by completing the square.
(leave in fraction form if necessary)
Answer:
The roots are;
x = (2 + i)/5 or (2-i)/5
where the term i is the complex number representing the square root of -1
Step-by-step explanation:
Here, we want to use the completing the square method to solve the quadratic equation;
f(x) = -5x^2 + 4x -1
Set the function to zero
0 = -5x^2 + 4x - 1
So;
-5x^2 + 4x = 1
divide through by the coefficient of x which is -5
x^2 - 4/5x = -1/5
We now take half of the coefficient of x and square it
= -2/5^2 = 4/25
add it to both sides
x^2 - 4x/5 + 4/25= -1/5 + 4/25
(x- 2/5)^2 = -1/5 + 4/25
(x - 2/5)^2 = -1/25
Take the square root of both sides
x - 2/5 = √( -1/25
x - 2/5 = +i/5 or -i/5
x = 2/5 + i/5 or 2/5 - i/5
what is answer 4x2 + 32xy ?
Anique’s favorite store to shop at is Zara in Manhattan, New York. Her mother put $50 on her debit card to purchase a new dress for picture day. Anique spent $30 on a dress, $30 on shoes, $20 on a necklace/bracelet set, and $20 for her lunch.
Answer
Step-by-step explanation:
Simplify.
[tex] {2}^{9} \times {2}^{5} = {2}^{?} [/tex]
Enter the missing exponent.
Please help me, I really dont want to get an F :((( (The Graph Is In The Image)
The graph shows the data for the time it takes Jerome to bike to school, based on his average biking speed for that trip. Which sentence describes the association?
A.The speed he bikes at affects the time it take him to get to school, but it is unclear if the time increases or decreases.
B. As the average speed increases, the time he takes to get to school decreases.
C. The speed he bikes at does not affect the time it takes him to get to school.
D. As the average speed increases, so does the time he takes to get to school.
Answer:
B: As the average speed increases, the time he takes to get to school decreases.
Step-by-step explanation:
On the graph, it showed that the plotted points are decreasing as the average speed is increasing. Also, I took the test and B was the correct answer.
solve -8(n+5)=-44-8n
Answer:
there are no solutions
Step-by-step explanation:
HERE ARE THE STEPS IN CASE U NEED EM :)
Step 1: Simplify both sides of the equation.
−8(n+5)=−44−8n
(−8)(n)+(−8)(5)=−44+−8n(Distribute)
−8n+−40=−44+−8n
−8n−40=−8n−44
Step 2: Add 8n to both sides.
−8n−40+8n=−8n−44+8n
−40=−44
Step 3: Add 40 to both sides.
−40+40=−44+40
0=−4
When finding the volume of the volleyball, Erica used 3.14 in the formula. What type of measurement accuracy is used?
A) Exact
B) Approximation
C) Estimation
Answer:
c
Step-by-step explanation:
you would have to estimate bc you won't get an exact measurement . hope this helpssss. brainliest?
Select equivalent or not equivalent for each pair of expressions
Answer:
1: equivalent
2: equivalent
3: not equivalent
Step-by-step explanation:
for 1 & 2, you just switch the terms, but for 3, the 6z is not negative in the first expression, but it is in the second.
5.
(plz helppp)
Mrs. Thompson’s class measured the rainfall at their school for four weeks.
Week 1:
Week 2: 3.2 inches
Week 3:
Week 4: ?
How much rain fell in week 4 if the total rainfall for the four weeks was 7 inches?
Answer: 1.26 inches
explanation :
because if you subtract 7 by 3.2 you'll get
3.8, 3.8 will be the total of rain if you add week 1 2 4 , then youll have to find the average by dividing 3.8 by 3 youll get 1.26 . so that means the average lenth of the rain for 1 2 4 is 1.26 inches
It takes a boat 3 hours to travel 45 miles downstream and 4 hours to travel 44 miles upstream.
What is the speed of the boat in still water?
The boat travels at...
miles per hour in still water.
What is the speed of the current of the river?
The speed of the current is...
miles per hour.
Answer:
2 miles per hour
Step-by-step explanation:
We use the distance formula. D = r * t
45/3 = 15 mph | Trip 1 |
44/4= 11mph | Trip 2 |
15-11 = 4 mph difference traveling upstream or downstream. Thus the speed of the current is 2 miles per hour.
A Muffin Recipe needs 3/5 pound of butter to make 12 muffins, how much butter does the recipe need for 1 muffin
Answer:
1/15
Step-by-step explanation:
Hope it helps
A toy box contains eight green balls and four purple balls. Suppose you choose a ball at random and then replace it by putting it back in the toy box. You then choose a second ball. What is the probability that you have selected a green ball and then a purple ball?
Answer:
okay now I know this for absolute sure the answer is 2 over 9 aka 2/9
Step-by-step explanation:
2x^2+8−3=0 Complete the square
Answer:
- 5/4 or - 1 1/4
Step-by-step explanation:
Step 1:
2x² + 8 - 3 = 0 Equation
Step 2:
4x + 8 - 3 = 0 Exponents
Step 3:
4x + 5 = 0 Combine Like Terms
Step 4:
4x = - 5 Subtract 5 on both sides
Step 5:
x = - 5 ÷ 4 Divide
Answer:
x = - 5/4 or - 1 1/4
Hope This Helps :)
Tom makes $214.40 in 4 days. How much does he make in 2 days
Answer:107.2
Step-by-step explanation:
So u know how much he gets in 4 days so u subtract 4 days by 2 and u get 2 so then divide 214.40 by 2 and u get 107.2
3 3/4 divided by 3/20
Answer:
25
Step-by-step explanation:
i need help who knows the answer to this You start a new job. After w weeks, you have (10w+120) dollars in your savings account and (45w+25) dollars in your checking account. Write an expression in simplest form that represents the total in both accounts.
Evaluate the function when x=-3,0, and 1.
g(x)=-4x
If g(x) = 3x + 1
g(2) = _____
Answer:
5x+2
Step-by-step explanation:
...................
A pipe cleaner lay across a wire shelf. The wires that make up the shelf are parallel, and the pipe cleaner is a transversal. The parallel wires are labeled a, b, and, c, and the angles are labeled with numbers. Parallel lines a, b, and c are cut by a pipe cleaner transversal. All angles are described clockwise, from uppercase left. Where line a intersects with the pipe cleaner, the angles are: 1, 2, 4, 3. Where line b intersects with the pipe cleaner, the angles are 5, 6, 8, 7. Where line c intersects with the pipe cleaner, the angles are: 9, 130 degrees, 12, 11. The measure of one angle is 130°. Which statement is true regarding the 130° angle and angle 3? They are same-side interior angles, so angle 3 measures 50°. They are alternate interior angles, so angle 3 also measures 130°. They are corresponding angles, so angle 3 also measures 130°. They are alternate exterior angles, so angle 3 measures 50°.
Answer:
B. They are alternate interior angles, so angle 3 also measures 130°.
Explanation: This is the correct answer on Edge 2021, just took the unit test. Hope this helps ^-^.
They are alternate interior angles, so angle 3 also measures 130°. The correct option is B.
What are alternate interior angles?The angle formed by the line intersecting two parallel lines is called the alternate interior angle. These two angles are equal in magnitude.
Here, according to the given figure, lines a and c are parallel lines and pipe cleaner is a transversal that is passing through these parallel lines.
Therefore, by the property of parallel lines, the corresponding and alternative exterior or interior angles made by the common transversal ( pipe cleaner) on lines a and c must be equal, and here ∠3 and 130° are alternative interior angles by lines a and c with the same transversal, So, they must be equal.
The complete question is given below:-
A pipe cleaner lay across a wire shelf. The wires that make up the shelf are parallel, and the pipe cleaner is a transversal. The parallel wires are labeled a, b, and, c, and the angles are labeled with numbers. The measure of one angle is 130°. Which statement is true regarding the 130° angle and angle 3?
A. They are same-side interior angles, so angle 3 measures 50°.
B. They are alternate interior angles, so angle 3 also measures 130°.
C. They are corresponding angles, so angle 3 also measures 130°.
D. They are alternate exterior angles, so angle 3 measures 50°.
To know more about alternate interior angles follow
https://brainly.com/question/24839702
#SPJ2
find the slope of this graph
Answer:
-3
Step-by-step explanation:
One cell phone company offers a plan that costs $26.99 and includes unlimited night and weekend minutes. Another company offers a plan that costs $18.99 and charges $0.35 per minute during nights and weekends. For what numbers of night and weekend minutes does the second company's plan cost more than the first company's plan? Starting at minutes, the second company's plan will cost more than the first company's plan.
Given :
One cell phone company offers a plan that costs $26.99 and includes unlimited night and weekend minutes.
Another company offers a plan that costs $18.99 and charges $0.35 per minute during nights and weekends.
To Find :
For what numbers of night and weekend minutes does the second company's plan cost more than the first company's plan.
Solution :
Let, after n number of nights and weekends second plan is most costly.
So,
[tex]18.99+0.35x > 26.99\\\\0.35x > 8\\\\x>22.85[/tex]
Therefore, after 22 night and weekends second plan is most costly.
Hence, this is the required solution.
Find the distance between the two points in simplest radical form.
(0, –4) and (-3,-1)
Answer:
3[tex]\sqrt{2}[/tex]
Step-by-step explanation:
Calculate the distance d using the distance formula
d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]
with (x₁, y₁ ) = (0, - 4) and (x₂, y₂ ) = (- 3, - 1)
d = [tex]\sqrt{(-3-0)^2+(-1+4)^2}[/tex]
= [tex]\sqrt{(-3)^2+3^2}[/tex]
= [tex]\sqrt{9+9}[/tex]
= [tex]\sqrt{18}[/tex]
= [tex]\sqrt{9(2)}[/tex]
= [tex]\sqrt{9}[/tex] × [tex]\sqrt{2}[/tex] = 3[tex]\sqrt{2}[/tex]
Step-by-step explanation:
Hey there!
Given;
The points are;(0,-4) and (-3,-1).
Use formula for distance between the two points.
[tex]d = \sqrt{ {(x2 - x1)}^{2} + {(y2 - y1)}^{2} } [/tex]
Put all values.
[tex]d = \sqrt{( { - 3 - 0)}^{2} + ( { - 1 + 4)}^{2} } [/tex]
Simplify to get answer.
[tex]d = \sqrt{9 + 9} [/tex]
[tex]d = \sqrt{18} [/tex]
[tex]d = 3 \sqrt{2} [/tex]
Therefore, the distance is 3√(2) units or 4.24 units.
Hope it helps...
I need help dont understand.
Find the value of this triangle!
Answer:
x=35
y=145
z=25
Step-by-step explanation:
(do first)x:
55 + 90 = 145
180-145=35
(do last)y:
25+10=35
180-35=145
(do second)z:
65+90=155
180-155=25
Answer:
x = 35, y = 145, z = 25
Step-by-step explanation:
All triangles' angles have a sum of 180°. Because we know this, we can solve the first triangle easily.
180 = x + 90 + 55
180 = x + 145
35 = x
Angles x and y are what we call suplementary angles. This means they have a sum of 180°.
180 = 35 + y
145 = y
Once again, we know that triangles have a sum of 180°. So the next triangle should now be easy to solve.
180 = 10 + 145 + z
180 = 155 + z
25 = z
Find the percent increase. Round to the nearest percent.
From 84 books to 162 books
Answer:
93%
Step-by-step explanation:
Answer:
1.45 x 5 is the answer but i want you to do some work for it and if its wrong im sorry but thats what i calculated it as
Step-by-step explanation:
A new amusement park ride that last one minute can have up to 1,200 Riders per hour. How many riders can ride per minute.
Pls help
Answer:
20
Step-by-step explanation:
1 hour = 60 minutes
1200 riders = 60 minutes: divide by sixty to set equal to 1
20 riders = 1 minute
Just divide 1,200 by 60 because there are 60 minutes in 1 hour.
Just think about it this way: If you eat 1 banana a minute, you eat 60 bananas an hour. The amusement park ride goes around once a minute. In one hour it goes around 60 times. Each time it carries the same amount of people.
1,200 divided by 60 is...
20!
The ride can carry 20 riders each ride, and each ride lasts a minute.
Select the correct answer from each drop-down menu. Samson is making a shipping box out of a 2-foot by 4-foot piece of cardboard. He will cut two squares of side length x and two rectangles with a width of x out of the cardboard and then fold the cardboard along the lines to make the box. He models the volume, , in cubic feet, as a function of the length x, in feet. He created the diagram and graph to model the box and its volume. Image not drawn to scale The zeros of function v occur at 0 and 1 . To make the box, Samson should use a value for x.
Answer: 0 and 1, less than 0
Step-by-step explanation:
Answer:
The zeros of function v occur at 0 and 1. To make the box, Samson should use a value between 0 and 1 for x.
Step-by-step explanation: PLATO
Maxwell earns $17 per hour tutoring students after school. If Maxwell tutored for 8 hours this month, how much money did he earn this month?
Answer:
Just do 17 times 8
Step-by-step explanation:
You just need to go into yours phones calculator and put in 17 times 8
Answer: 136
Step-by-step explanation:
17*8=136
I know it’s not G. Or J.
Someone help me please!
Answer:
h
Step-by-step explanation:
Pls help as soon as possible
Answer:
C
Step-by-step explanation:
