Answers
Answer:
f(-4) = -12
Step-by-step explanation:
[tex]f(x)=2x-4[/tex]
To calculate f(-4), we need to substitute x in our equation above with -4:
[tex]f(x)=2x-4\\f(-4) = 2*(-4) - 4\\f(-4) = -8-4 = -12[/tex]
Note that 2*(-4) = -8
Answer: f(-4) = -12
Answer:
[tex] \longmapsto \: f(x) = 2x - 4 \\ f( - 4) = 2( - 4) - 4 \\ f( - 4) = - 8 - 4 \\ \boxed{f( - 4) = - 12}✓[/tex]
12 is the right answer.Related Questions
ty
Which defines the piecewise function shown?
4.
O f(x) =
- x - 2, X < 0
х
2'
x > 0
2.
O f(x) =
х
- x - 2, X < 0
- x 20
xin
4.
-2
N
4.
-20
O f(x) =
-
x < 0
A
x -2, x 20
-4
O f(x) = 2
x ko
x - 2, X 2 0
Answers
The choice which defines the piecewise function shown in the graph is; Choice B.
Piecewise functionsFor the line originating from the center and plotted towards the right (i.e Positive x-axis)
We can conclude that the line can be represented by the function; f(x) = -x/2 and slope = -1/2 where; x>= 0 due to the solid dot
For the line whose y-intercept is at point, (0, -2), and is plotted towards negative x; we have;
We can conclude the equation of the line can be represented by the function; f(x) = -x -2 where slope = -1, and domain; x < 0
Ultimately, the aggregate of both functions give s the required piecewise function as represented in Choice B.
Read more on piecewise functions;
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if ab is 2x+3 bc is 3x+5 and ac is 38 what is the value of x
Answers
Answer:
x would equal 8. because you would add AB and BC together and set it equal to AC
Hoped I helped
Can I get a brainliest
simplify: cot(θ)sin(θ)
Answers
Answer:
cos(θ)
Step-by-step explanation:
cot(θ) = cos(θ)/sin(θ)
Step 1: Write expression
cot(θ)sin(θ)
Step 2: Substitute
cos(θ)/sin(θ) · sin(θ)
Step 3: Simplify
cos(θ)
8w-12=-4 anyone know the answer
Answers
Answer:
w=1
Step-by-step explanation:
8w-12=-4
8w =-4+12
8w=8
8w/8=8/8
w=1
Mark as brainliest
Answer:
Well first we have to know what -12 is -4. So I know that 8 subtracting 12 is -4 already but, i am explaining to your knowlege so here I go.
What we can do is add 12 to -4 and it will equal what _-12=-4
So -4+12=8
Since the variable is with 8, we have to find what the variable w is. So 8x_=8?
Thats obvious right? 8x1=8!
So 8w-12=-4 = 8x1=8-12=-4
Hope this helps and if it helps enough pls mark as brainliest!
Step-by-step explanation:
Cameron said that the Y intercept of a quadratic function always tells the maximum value of the function. explain Cameron's error
Answers
Answer:
We can have two cases.
A quadratic function where the leading coefficient is larger than zero, in this case the arms of the graph will open up, and it will continue forever, so the maximum in this case is infinite.
A quadratic function where the leading coefficient is negative. In this case the arms of the graph will open down, then the maximum of the quadratic function coincides with the vertex of the function.
Where for a generic function:
y(x) = a*x^2 + b*x + c
The vertex is at:
x = -a/2b
and the maximum value is:
y(-a/2b)
HELP PLZ GOD BLESS YOU HELP PLZ
Answers
[tex]\huge\boxed{Second\;Provided\;Answer.}[/tex]
[tex]12(8) + 13(11) = 239\\12 * 8 + 13 * 11\\12 * 8 = 96\\96 + 13 * 11\\13 * 11 = 143\\96 + 143 = 239\\[/tex]
[tex]Therefore,\;your\;final\;answer\;is\;the\;second\;provided\;answer.[/tex]
Hope this helped!
May i have brainliest?
[tex]\huge\boxed{Thanks,\;Plip.}[/tex]
Jessica has 10.75 white straw. She cut the white straw into two equal-sized pieces. What mixed number represents the length of each piece of white straw after cutting? A. 6 1/4 B. 5 13/20 C. 5 3/8 D. 5 1/8
Answers
Answer:
C: 5 3/8
Step-by-step explanation:
The length of each straw half is 5.375
A= 6.25
B = 5.65
C = 5.375
D = 5.125
Given the functions f(x) = −3x + 51 and g(x) = 3x − 9, find the value of x for which f(x) = g(x).
The value of x for which f(x) = g(x) is x
PLS ANSWER ASAP
Answers
Answer:
x = 10
Step-by-step explanation:
Step 1: Define
f(x) = -3x + 51
g(x) = 3x - 9
f(x) = g(x)
Step 2: Set up equation
f(x) = g(x)
-3x + 51 = 3x - 9
Step 3: Solve for x
51 = 6x - 9
60 = 6x
x = 10
Step 4: Check
f(10) = -3(10) + 51
f(10) = -30 + 51
f(10) = 21
g(10) = 3(10) - 9
g(10) = 30 - 9
g(10) = 21
f(10) = g(10) = 21
help me please
(pythagorean theorem)
Answers
Answer:
13 cm × 12 cm
Step-by-step explanation:
The diagonal of the top or bottom faces of the box is the hypotenuse of a triangle with legs 12 cm and 5 cm. The Pythagorean theorem tells you that diagonal length is ...
d = √(12² +5²) = √(144 +25) = √169 = 13 . . . cm
The width of the divider is 13 cm.
The height of the divider is shown as 12 cm.
The dimensions of the dividing rectangle are 13 cm by 12 cm.
Hey! can someone please give me ideas on what type of art i could make, thanks im so confused
Answers
Alright, so uno.
By six types of triangles, I'll assume that your teacher meant acute, right, obtuse, scalene, isosceles, and equilateral.
Some easy things to make with triangles are flags.
You could make a triangular leaf, with triangles as the stem.
Look up animals made out tangram triangles for some inspiration.
Honestly, just do whatever you wanna do.
Original: $30.59
Discount:25%
New: ?
Answers
Hello!
The new value is $ 22,9425 or just $ 23 in a more simplified size.
We need to calculate 25% of 30.59.
We will do this by turning 25 into tenths:
0,25 × 30,59= 7,6475Now, we subtract that from 30,59.
30,59 - 7,6475
= 22,9425
So, the new value is $ 22,9425 or just $ 23 in a more simplified size.
_______________
Att. Isaiasdesign03
Moderator in Brainly BR
Sorry my English, I'm Brazilian. ☺
4:(x−3)=2:3
find x
please help me
Answers
Answer:
9
Step-by-step explanation:
4:(x-3)=2:3
4/2=2
Which means that x-3 has to equal double the amount of 3
3*2= 6
x-3=6
Add three to both sides
x=9
Answer:
9
Step-by-step explanation:
4:(x-3)=2:3
4:(x-3)=2(2:3)
4:(x-3)=4:6
x-3=6
x=9
george floyd was what race
Answers
Answer:
African American (aka Black)
Answer:
african american blm/alm
Step-by-step explanation:
6. Which of the following inequalities is true? (1 point)
√36 <-6
1/4> 0.5
15/2 < √81
-3>-0.7
Answers
Answer:
15/2 < √81
15/2=7.5
√81=9
7.5<9
Simplify: −6(1/4 x - 2/3 x + 5/6 x)
A) -2 1/2 x
B) -x
C) 2x
D) 3/4 x
Answers
Answer:
(-5 x)/2
Step-by-step explanation:
Simplify the following:
-6 (x/4 - (2 x)/3 + (5 x)/6)
Put each term in x/4 - (2 x)/3 + (5 x)/6 over the common denominator 12: x/4 - (2 x)/3 + (5 x)/6 = (3 x)/12 - (8 x)/12 + (10 x)/12:
-6(3 x)/12 - (8 x)/12 + (10 x)/12
(3 x)/12 - (8 x)/12 + (10 x)/12 = (3 x - 8 x + 10 x)/12:
-6(3 x - 8 x + 10 x)/12
The gcd of -6 and 12 is 6, so (-6 (3 x - 8 x + 10 x))/12 = ((6 (-1)) (3 x - 8 x + 10 x))/(6×2) = 6/6×(-(3 x - 8 x + 10 x))/2 = (-(3 x - 8 x + 10 x))/2:
(-1 (3 x - 8 x + 10 x))/2
3 x - 8 x + 10 x = 5 x:
Answer: (-5 x)/2
If CD I EF, what is the mZFCD?
Answers
there is no picture. Can you upload a picture?
14.
If X = 37.5% of 20% of 48 and Y = 14.28% of
27.27% of 77, then
(a) X>Y
(b)X = Y
(c) X<Y
(d) X-Y = 1.4
2
Answers
Answer:
1
Step-by-step explanation:
&//&18289
If X = 37.5% of 20% of 48 and Y = 14.28% of 27.27% of 77, then X>Y.
The first step is to determine the value of X.
X = 37.5% of 20% of 48
X = 0.375 x 0.2 x 48 = 3.6
The second step is to determine the value of Y.
Y = 14.28% of 27.27% of 77
Y = 0.1428 x 0.2727 x 77 = 3
Note that:
> means greater than
< means less than
≥ means greater than or equal to
≤ less than or equal to
Based on the above calculations, x > y.
To learn more about inequality, please check: https://brainly.com/question/5031619
Harlon wrote the equation uppercase A = 18 (x squared + 1) to find the area of a rectangle that has a length of x squared + 1 and a width of 18. He solved for x and got x = plus-or-minus StartRoot StartFraction uppercase A Over 18 EndFraction minus 1 EndRoot Which of the following is an equivalent equation for x?
Answers
Answer: x= a-18/18
Step-by-step explanation:
The expression equivalent to this is letter A. x= ±√(A-18/18)
What are equivalent expressions?Those expressions who might look different but their simplified forms are same expressions are called equivalent expressions.
To derive equivalent expressions of some expression, we can either make it look more complex or simple. Usually, we simplify it.
To solve for x in the equation for the area which was given to be;
A = 18(x^2 + 1),
So, we divide both sides of the equation by 18 first.
A/18 = x^2 + 1
Then, we subtract 1 from both sides of the equation;
A/18 – 1 = x^2
Then, we simplify the expression in the left side of the equation;
(A – 18)/18 = x^2
And obtain the square root from both sides of equation,
x= ±√(A-18/18)
Therefore, The expression equivalent to this is letter A. x= ±√(A-18/18)
Learn more about expression here;
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Solve -11 > -1 - 2x solve and check your answer
Answers
Answer:
x>5
Step-by-step explanation:
-11>-1-2x
2x>-1+11
2x>10
x>5
Answer:
5 > x
Step-by-step explanation:
-11 > -1 -2x ---> plus one on each side---> -10 > -2x ----> divide by -2 --> 5 > x
is 15 square rooted rational
Answers
Answer: The square root of 15 is a rational number
explanation: if 15 is a perfect square. ... Since 15 is not a perfect square, it is an irrational number. This means that the answer to the square root of 15 will have an infinite number of decimals. The decimals will not terminate and you cannot make it into an exact fraction.
Six times the sum of a number and four
Answers
Answer:
6*(x+4)
Step-by-step explanation:
The expression "Six times the sum of a number and four" can be written as 6 × (x + 4) OR 6(x+4)
The complete question is:
How do you write the expression for: Six times the sum of a number and four
To write an expression for the given statement (Six times the sum of a number and four),
Let the number be x
Therefore, the sum of the number and four would be
x + 4
Now, for the complete statement - Six times the sum of a number and four
We will get
6 × (x + 4) OR 6(x+4)
Hence, the expression "Six times the sum of a number and four" can be written as 6 × (x + 4) OR 6(x+4)
Learn more here: https://brainly.com/question/11708683
“Trish has a jug of contaminated water that she knows is only 75% clean. She also knows that the
water will be safe to drink if she can mix it with 100% clean water so that it is 97% clean. How much
clean water (100% clean) would Trish need to mix with the contaminated water in order to get 1 gallon
of drinkable water?"
A student used the following system of equations to model the situation given above. Which of the
statements is true about the system of equations the student used?
75x + 100y = 97(1)
Lx-y=1
A. The system of equations the student used is correct.
B. The top equation in the system is incorrect.
C. The bottom equation in the system is incorrect.
D. Both equations in the system are incorrect.
Answers
what is 3(5)+(-2+4-5)? explanation needed, please. I need to turn my work for it in in about 30 minutes.
Answers
Answer:
12
Step-by-step explanation:
3(5)+(-2+4-5)
Use PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction
(-2+4-5)=-3
3(5)-3
3(5)=15
15-3=12
Answer:12
Here are the first five terms of a number sequenceS . 10 16 22 28 34 Find an expression, in terms of n , for the nth term of this sequence.
Answers
Answer:
t = 4 + 6n
Step-by-step explanation:
a = 10
d = 6
in general
tn = a + (n-1)*d
tn = 10 + (n-1)*6
tn = 10 + 6n - 6
tn = 4 + 6n
So if n = 5 then
t5 = 4 + 6*5
t5 = 4 + 30
t5 = 34 which agrees with your givens.
scar goes to the gym 4 times per week. Every time he walks 5 miles on the 4 points
treadmill. How many miles does he walk on the treadmill in one year?
Answers
Answer:
He walks 1,060 miles on the tremil in one year.
Step-by-step explanation:
4*5=20*53=1,060
There are 53 sometimes 52 weeks in a year,2020 wise 53 so 53*20=1,060 miles.
You are playing a video game. For each diamond you collect, you earn 75 points. You also earn 100 bonus points by completing the level in less than 2 minutes. You need to earn more than 1000 points to continue to the next level. Write and solve an inequality that represents the numbers d, the number of diamonds you must collect in less than 2 minutes to advance to the next level
Answers
Answer:
75x + 100 greater than 1000
Step-by-step explanation:
change of subject x the subject
y=2x+3/5x-2
Answers
Answer:
x = [tex]\frac{3+2y}{5y-2}[/tex]
Step-by-step explanation:
Given
y = [tex]\frac{2x+3}{5x-2}[/tex] ← multiply both sides by (5x - 2)
y(5x - 2) = 2x + 3 ← distribute left side
5xy - 2y = 2x + 3 ( add 2y to both sides )
5xy = 2x + 3 + 2y ( subtract 2x from both sides )
5xy - 2x = 3 + 2y ( factor out x from each term on the left side )
x(5y - 2) = 3 + 2y ← divide both sides by (5y - 2)
x = [tex]\frac{3+2y}{5y-2}[/tex]
12 - 9x = -3(x + 10)
Answers
Answer:
-7
Step-by-step explanation:
[tex]12-9x=-3x-30[/tex]
[tex]12=6x-30[/tex]
[tex]6x-42[/tex]
[tex]x=-7[/tex]
How many 1/4 pieces are in 5 3/4
Answers
Answer:
23
Step-by-step explanation:
3/4 has 3 of 1/4 pieces.
5 has 20 of 1/4 pieces.
The number of pieces of 1/4 in 5 3/4 is 23 pieces
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the number of pieces be = A
Let the number be = 1/4
Now , the number of pieces of 1/4 in 5 3/4 is calculated as
The number 5 3/4 is converted into mixed fraction is 23/4
So , the equation is
The number of pieces of 1/4 x n = 23 / 4
So , the equation will be
n x 1/4 = 23 / 4 be equation (1)
Multiply by 4 on both sides , we get
n = 23 pieces
Therefore , the number of pieces 1/4 is in 5 3/4 is 23 pieces
Hence , The number of pieces of 1/4 in 5 3/4 is 23 pieces
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Step A: Brian went to a trading-cards event. It cost $5 to enter and $4 for each card he
purchases. Write an equation that models his total cost for the day.
Step B: How many cards did Brian purchase if he spent a total of $29?
Step C: If Brian brought a total of $65, what is the maximum amount of cards he can purchase?
Explain why in a short paragraph and in your own words.
Answers
Answer:
Step-by-step explanation:
let x be the number of cards brian gets
let y be the amount of money he spends
the y intercept will be 5, since he automatically spends $5 to enter
a. 4x+5=y
b.29=4x+5 —-> 24=4x —-> x=6. Brian got 6 card
c. Brian can’t buy more than 15 cards. When you plug in 65 for y into the equation, after solving for x you get 15 To check, 4(15)+5=65
