Answers
Answer:
Step-by-step explanation:
f(x)= -2x-4
when x= -1
f(-1)= -2*(-1) -4= 2-4= -2
when x=4
f(4)= -2*4 -4 = -8-4 = -12
Related Questions
Someone thats extremely 100% good at math and is passing math can you help me with all my math questions. I need to get a better grade in math. ( No Plagiarism and please dont reshare another students answer from brainly either). Will Mark Brainliest. Just click on my name to go to my math questions.
Answers
1. What is a function?
2. How do you calculate the y-intercept of a function based on the graph, an equation, or 2 given points?
3. What is a composite function?
Answers
Answer:
see explanation
Step-by-step explanation:
1
A function is a relationship between 2 variables that gives exactly one output value for every input value.
2
From a graph the y- intercept is the value of the y- coordinate on the y- axis where the function crosses the y- axis.
If c is the y- intercept then its coordinates are (0, c )
Given an equation to find the y- intercept, let x = 0 in the equation and solve for y ( the y- intercept )
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Given 2 points, calculate m using the slope formula, then obtain the equation using either of the 2 points. The y- intercept is then the value of c
3
The composition of functions is an operation in which you use one function as the input into another and perform the operations on that input function.
Given f(x) and g(x) then
f(g(x)) and g(f(x)) represents the composition of the functions
The candy produced by a company has a sugar level that is normally distributed with a mean of 16.8 grams and a standard deviation of 0.7 grams. The company takes readings of every 10th bar off the production line. The reading points are 17.3, 14.9, 18.3, 16.5, 16.1, 17.4, 18.4. Is the process in control or out of control and why?
Answers
Answer:
It is not in control because at least two of the of the data points are more than 2 standard deviations from the mean are far apart.
18.3,18.4 > 18.2 Upper Control limit
14.9, > 15.4 Lower Control Limit
Step-by-step explanation:
Find the limits using μ ± 3σ and μ ± 2σ
Using μ ± 3σ
Upper Control Limit = μ + 3σ = 16.8 + 3(0.7)= 16.8 + 2.1= 18.9
Lower Control Limit = μ - 3σ =16.8 - 3(0.7)= 16.8 - 2.1= 14.7
Using μ ± 2σ
Upper Control Limit = μ + 2σ = 16.8 + 2(0.7)= 16.8 + 1.4= 18.2
Lower Control Limit = μ - 2σ =16.8 - 2(0.7)= 16.8 - 1.4= 15.4
The data points are 17.3, 14.9, 18.3, 16.5, 16.1, 17.4, 18.4.
Rearranging these data points 14.9, 16.1, 16.5, 17.3, 17.4, 18.3,18.4.
We see from the above that it is out of control because the values jump above and below the mean.
It is not in control as two of the of the data points are more than 2 standard deviations from the mean are far apart.
Simplify these radicals
Answers
Answer:
9) 7sqrt(2)
11) 8sqrt(2)
13) 3sqrt(7)
Step-by-step explanation:
9) factor the radicand 98 into 7*7*2, 7^2*2, and then factor out the 7 squared to the outside of the radical to get 7 square roots of 2
11) factor the radicand 128 into 8*8*2, 8^2*2, and then factor out the 8 squared to the outside of the radical to get 8 square roots of 2
13) factor the radicand 63 into 3*3*7, 3^2*2, then factor out the 3 squared outside of the radical to get 3 square roots of 7
Write an expression that represents the perimeter of triangle.
Combine like terms.
3.x
3x
15
Perimeter of triangle:
If the perimeter of the triangle is 90, what is the value of x?
Answers
The value of x is 12.5
A triangle has 3 sides: side A, side B and side C
Perimeter of a triangle = side A + side B + side C
Side A = 3x
Side B = 3x
Side C = 15
Perimeter of a triangle = 90
Perimeter of a triangle = side A + side B + side C
90 = 3x + 3x + 15
90 - 15 = 3x + 3x
75 = 6x
x = 75 / 6
x = 12 3/6
x = 12 1/2
= 12.5
x = 12.5
https://brainly.com/question/19761201
PLEASE, PLEASE IM BEGGING YOU
Which of the following best defines an input? (4 points)
a
An input is the result of a relation or the function rule, usually the y-values in a set of ordered pairs or on a table or graph.
b
An input is a special type of relation for which there is a rule that pairs each input with exactly one output.
c
An input is a set of ordered pairs in which no y-value repeats.
d
An input is the value that determines another based on the relation or the function rule, usually the x-values in a set of ordered pairs or on a table or graph.
Answers
Answer:
d
Step-by-step explanation:
hope this helped!!!!!
Answer: d
An input is the value that determines another based on the relation or the function rule, usually the x-values in a set of ordered pairs or on a table or graph.
Step-by-step explanation: Its d because the function has one output for each input so d is the correct answer.
I also saw the question on a different persons test in brainly and it was d.
Use the square root property of equality to solve
(x – 3)2 = –4.
The solutions are
Answers
Answer:
3+2i
Step-by-step explanation:
just did it
Answer:
Step-by-step explanation:
Complete the following statement. Write your answer as a decimal or whole number.
% of $50 = $23
try to answer it fast please. thanks
Answers
Answer:
46
Step-by-step explanation:
a circle has a diameter of 6 centimeters what is the approximate area of the circle
Answers
Answer:
28.26 [tex]cm^{2}[/tex]
Step-by-step explanation:
The radius is half of the diameter. 6/2 = 3, so the radius of this circle is 3 cm.
The formula for the area of a circle is: π[tex]r^{2}[/tex]
Plugging 3 into the radius, we have:
[tex]3^{2}[/tex] × π =
9 × π
We can round π to 3.14
9 × 3.14 = 28.26
Sophia, Aiden, and Jaiden had a challenge to see who could bike the farthest in one day. Sophia biked 13 miles, Aiden biked 2 times as many miles as Jaiden and Jaiden biked 3 times as many miles as Sophia. How many miles did Aiden bike?
Answers
Answer:
78 is the answer
Step-by-step explanation:
ok so look below for steps to solve it!
step 1: it says Jaiden did 3* as many so multiply 3*13=39
step 2: then multiply 39*2=78
step 3: thus, the answer is 78
please give me brainliest! have a great day!
Answer:
Its 78
Step-by-step explanation:
16.
Fill in the table below for the following linear equation.
2x - 3y = -9
x
у
I
Answers
Answer:
Step-by-step explanation:
I’m back from hell
CAN SOMEONE PLEASE ANSWER MY LAST QUESTION . WOULD MAKE MY DAY THANKS.
Answers
Answer:
kk
Step-by-step explanation:
Determine whether b=65 is a solution of the equation
b/13=5
True
False
Answers
Answer:
True
Step-by-step explanation:
65/13 Divide
5 You get 5
Marisol scored 90% on her English test. There were 30 questions on the test. How many did Marisol answer correctly
Answers
Answer:
27 QUESTIONS
Step-by-step explanation:
27/30 = 0.9 X 100 = 9 X 10 = 90%
Pls hurry I’m being timed the first to comment gets brainleist answer
Answers
Answer:
|3| < |-7| and 3>-7
Step-by-step explanation:
The absolute value of -7 = 7, and 3 < 7.
3. Farmer Brown is growing crops. In his field he has 25 square fe of corn and 25 square feet of wheat. What is the area of Farmer Brown's field?
Answers
Answer:
25 x 25= you gey ur answer
Step-by-step explanation:
Answer:
50 square feet
Step-by-step explanation:
If he has 25 square feet in corn and 25 in wheat so add them together and you get the full area of the entire field
What is the y-intercept of the line?
Help fast!!!!
Answers
how do you use the order of operations to solve this problem:
7(5+6) - 4
A.73
B.no answer in text provided
:/ what it said
Answers
find the slope of the line that passes through the given cordanits-1,6 and 4,3
Answers
Answer:
-1
Step-by-step explanation:
the coordinates are (1,6)(4,3)
lets say that
x1=1
x2=4
y1=6
y2=3
slope formula: (y2-y1)/(x2-x1)
= (3-6)/(4-1)
= -3/3
= -1
What is 45 percent of 50
Answers
Answer:
22.5
Step-by-step explanation:
Plzz help
Which of the following correctly uses absolute value to show the distance between -80 and
15? (5 points)
A. |-80 - 15| = |-95| = -95 units B. |-80+ 15| = |-65| = 65 units
C. |-80 - 15| = |-95| = 95 units
D. |-80 + 15| = |-65] = -65 units
Answers
Answer:
Its A
Step-by-step explanation:
I took the test
The value of 5/32 divided by 25/4
Answers
Answer:
1/40
Step-by-step explanation:
relative frequency of 80
Answers
Answer:8/10
Step-by-step explanation:
Plzzz help meeeeeeeeeeeeee
Answers
hey anyone in 7th grade I need advise, on a guy
Answers
Answer:
im in 6th but i gotchu, spilllll
Step-by-step explanation:
tell if it is possible to prove that the triangles are congruent
Answers
Answer: If two angles and the included side of one triangle are congruent to the corresponding parts of another triangle, then the triangles are congruent. SAS: If any two angles and the included side are the same in both triangles, then the triangles are congruent.
Step-by-step explanation: hope this helps! Happy Holidays!
what is the slope of a line that passes through both (-2,-1) (-4,-7)
Answers
Answer:
-1/3
Step-by-step explanation:
Formula: y2 - y1
x2 - x1
Solve: -1 -(-2)
-7-(-4)
= -1/3
17 POINTS!!!!!! Tim was asked to solve this equation using decimals: Find 25% of 112. He must first set up an equation to help him solve it. How will it look?
Answers
Answer:
25% of 112 is 28. 112÷4 would be your equation
Answer:
28
Step-by-step explanation:
go on google and look up dollar times it helps with this type of question
NEED HELP WILL MARK BRAINLLIEST
QUESTION 15
Answers
Answer:
yesss
Step-by-step explanation:
Multiplication.
Find the missing factors.
- 3 x (-7) = _____
5 x ____ = -15
____ x (-2) = -24
____ x (-2) x (-4) = -32
(-3) x ____ x (-9) = 81
Answers
Answer:
1: 15
2: -3
3: 12
4: 4
5: 3
Step-by-step explanation:
I think this you can do this .
