Answer:
x = -4
Step-by-step explanation:
Six times a number plus 3 equals three times the same number minus
nine. This equation is 6x + 3 = 3x -9. Next, solve this equation and you get -4. Plug in -4 for x and you should get -21 on both sides.
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
(a) The top of a hill rises 436 feet above Checkpoint 4.
What is the altitude of the top of the hill?
Answer:
no
Step-by-step explanation: obious ok
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
What is the x-intercept of the line with this equation −5x+1/5y=15 ?
Enter your answer in the box.
9
Step-by-step explanation:
I don't no but 5 and 1 is 6 so add 9 more and you have 15
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
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
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
How many 2/3's are in 1?
Answer:
Just one.
Step-by-step explanation:
If you add another [tex]\frac{2}{3}[/tex] it becomes [tex]\frac{4}{3}[/tex] which would make it greater than one.
If g(x) = 3x + 1
g(2) = _____
Answer:
5x+2
Step-by-step explanation:
...................
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.
3 3/4 divided by 3/20
Answer:
25
Step-by-step explanation:
The value of 26 – 16 divided by 2+3•4 is
30
32
06
22
PLEASE HELP!!!!!!
Answer:
30.
Step-by-step explanation:
Please Help Me with this, I need to get finished
The area of a circle will _____ be larger than the area of a polygon circumscribed about the circle.
always
often
sometimes
never
The area of a regular hexagon inscribed in a circle with radius 2 is what. Round your answer to the nearest tenth.
Answer:
often
Step-by-step explanation:
YOU SEE i have depression
it feels like it wouldn't be long until something happens
ALSO, I FEEL DEAD INSIDE!!!!!:(sometimes I start to twitch and my face turns completely white depression+anxity don't mix well
What does it mean to multiply 4 into 9895
Answer:
39,580
Step-by-step explanation:
It means to multiply 9895 4 times.
Hope this helps.
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.
Pls help as soon as possible
Answer:
C
Step-by-step explanation:
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
Please Help, thank you :)
Answer:
p=-13
-13+16=3
I need help dont understand.
Tammy purchased a prepaid phone card for $15. Long distance calls cost 18 cents a minute using this card. Tammy used her card only once to make a long
distance call. If the remaining credit on her card is $6.72, how many minutes did her call last?
Answer:
46 minutes
Step-by-step explanation:
Sorry about not answering your question sooner, but here is your answer:
In order to get the answer, we have to subtract the original amount of money on the phone card by the amount left ver after the call:
15 - 6.72 = 8.28
Then, we divide this number by 0.18:
8.28 / 0.18 = 46
So, Tammy's call lasted 46 minutes
Hope this helps :)
I know it’s not G. Or J.
Someone help me please!
Answer:
h
Step-by-step explanation:
0.8,2/3,0.67,70% in order
Answer:
Step-by-step explanation:
1. 2/3
2. 0.67
3. 70%
4. 0.8
What is the angle pair relationship between angles 6 and 8?
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?
what is answer 4x2 + 32xy ?
Hello again! I need help with this question!
Answer:
(f o g) = -5x+22
Step-by-step explanation:
f o g basically means f(g(x))
So:
f(g(x)) = -5(x-4)+2
f(g(x)) = -5x+20+2
f(g(x)) = -5x+22
Therefore: (f o g) = -5x+22
This is called function composition. Basically, the output of g(x) goes into the input of f(x).
Answer:
its the 3rd option
Step-by-step explanation:
its right
PLZ HELP! ILL MARK BRAINLEIST!!! DONT USE FOR POINTS PLZ
Answer: x = 4
Step-by-step explanation:
I'm not sure about #19 sorry :,(
#20
2x+5=6x-11 (Setting them equal to each other because it's a square)
-2x -2x
5 = 4x-11
+11 +11
16 = 4x
/4 /4
4 = x
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.
Evaluate the function when x=-3,0, and 1.
g(x)=-4x
Find the measure of this angle, and explain your answer.
Answer:
50
Step-by-step explanation:
180 - 90+40 = 50
Answer:
Answer: 50 degrees
Step-by-step explanation:
important things to know:the square in the bottom right means 90°all angles in a triangle add up to 180°using this knowledge, you can make the following equation:
90 + 40 + x = 180
130 + x = 180
now subtract 130 from both sides.
x = 180 - 130
x = 50°
