Answer:
f(-2) = 3
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Function NotationStep-by-step explanation:
Step 1: Define
f(x) = -2x - 1
f(-2) is x = -2
Step 2: Evaluate
Substitute: f(-2) = -2(-2) - 1Multiply: f(-2) = 4 - 1Subtract: f(-2) = 3Answer:
-5
Step-by-step explanation:
f(×)=2x-1
f(-2)=2×(-2)-1 (here,x= -2)
=-4-1
= -5
What's 6804 rounded to the nearest hundred
Answer:
6800
Step-by-step explanation:
A book is marked down by 28 percent from an original price of $19.50. What is the new price?
Step-by-step explanation:
First find 28% of $19.50:
($19.50) / (100) × (28) = $5.46
Now minus the 285 from the original price:
($19.50) - ($5.46) = $14.04
The answer is $14.04
Hope it helped :)
what is 1/3 of 1/9????????????
Answer:
God is better then satan
Answer: 3
Step-by-step explanation: 9/3 is 3
Select the two descriptions that match the dilation
Help pls !!
Math people
Answer:
none of the other answers are correct
Step-by-step explanation:
the range is the difference between the highest and lowest values in a set of numbers.
Answer:
second option
Step-by-step explanation:
The range of a function are the output values, that is the set of y values.
PLEASE HELP!!! WILL GIVE BRAIN I PROMISE!!!!
Answer: 6i
Step-by-step explanation:
x1=4+x2=2 can someone tell me how do i do this?
Answer:
x3=4=2
Step-by-step explanation:
Add like terms. I believe that's what you're going for...
Hope this helped :)
Determine the quadrant point
Answer:
I think b
Step-by-step explanation:
c) tan^2A - cot^2A = sec^2A (1 - cot^2A)
plzz help me...tomorrow there is opt math test in my school...If I fail then i have to leave opt classes and go to eco....our teacher only taught trigonometry and I was absent 2 3 days due to sickness...plzz help me
Answer:
The steps are :
[tex] {tan}^{2} θ - {cot}^{2} θ = {sec}^{2} θ(1 - {cot}^{2} θ)[/tex]
[tex]RHS = {sec}^{2} θ(1 - {cot}^{2} θ)[/tex]
[tex]RHS = (1 + {tan}^{2} θ)(1 - \frac{1}{ {tan}^{2} θ} )[/tex]
[tex]RHS = (1 + {tan}^{2} θ)( \frac{ {tan}^{2}θ - 1}{ {tan}^{2} θ} )[/tex]
[tex]RHS = - \frac{(1 + {tan}^{2}θ)(1 - {tan}^{2} θ)}{ {tan}^{2} θ}[/tex]
[tex]RHS = - \frac{(1 - {tan}^{4} θ)}{ {tan}^{2} θ} [/tex]
[tex]RHS = \frac{ {tan}^{4} θ - 1}{ {tan}^{2}θ } [/tex]
[tex]RHS = {tan}^{2} θ - \frac{1}{ {tan}^{2}θ } [/tex]
[tex]RHS = {tan}^{2} θ - {cot}^{2} θ[/tex]
[tex]RHS = LHS (proven)[/tex]
The youth group at the church decided to plant geraniums and
daisies around the church grounds as a group project. Geraniums
in 6" pots cost $4 each and daisy plants cost $6 each. The youth
group spent $410 on 80 plants. How many geraniums and how many
daisy plants did the group buy?
Answer:
The youth group bought 35 geraniums and 45 daisy plants.
Step-by-step explanation:
We can solve this using a system of equations:
x + y = 80
4x + 6y = 410
X = Geraniums
Y = Daisies
First, let's solve for a variable in the first equation. I am going to solve for y in the first equation:
x + y = 80
y = -x + 80
Now that we have solved for y we can plug that back in to the 2nd equation:
4x + 6(-x + 80) = 410
4x - 6x + 480 = 410
-2x + 480 = 410
-2x = -70
x = 35
Now that we have found the amount of geraniums we can plug it back into the first equation and solve for y:
35 + y = 80
y = 45
Therefore the youth group bought 35 geraniums and 45 daisy plants.
Check:
(35) + (45) = 80
80 = 80
4(35) + 6(45) = 410
140 + 270 = 410
410 = 410
I hope this helps!!
- Kay :)
Please do this it’s on my test and I’m already late I can’t figure it out and I’m struggling so much please help me on this I need it badly
In order to solve how many problems each person has solved, you have to multiply the fraction by the number of problems on their assignment. To do this, you multiply the numberator by the number of problems and then divide that by the denominator for both Dustin and Kelsey.
For Dustin, 3/8 * 24 = 72 / 8 = 9 problems completed
For Kelsey, 4/15 * 30 = 120/15 = 8 problems completed
Dustin has completed more problems
Answer:9
Step-by-step explanation:
Dustin done more he done 9 and kelsey done 8
Billie Elilish , who's/whose had several hit songs recently ,is one of my favorite singers
Answer: same.
Step-by-step explanation:
Answer:
same
Step-by-step explanation:
same
Evaluate 5x – 2 when X = 3
Answer:
The answer is 13
Step-by-step explanation:
Answer:
13
Step-by-step explanation:
5(3)-2
15-2
13
6x square +11x-10
Factories
Answer:
(2x+5)(3x-2)
Step-by-step explanation:
6x²+11x-10
6x²+15x-4x-10
3x(2x+5)-2(2x+5)
(2x+5)(3x-2)
is this right yes or no?
Answer:
As far as I can see, yes it is correct.
What is 25% of 80? in table form
Answer:
20
Step-by-step explanation:
Percentage solution with steps:
Step 1: Our output value is 80.
Step 2: We represent the unknown value with x.
Step 3: From step 1 above, 80=100%.
Step 4: Similarly, x=25%.
Step 5: This results in a pair of simple equations:
80=100% (1).
x=25%(2).
Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both
equations have the same unit (%); we have
{80} = {100%} {25%}
Step 7: Again, the reciprocal of both sides give
{80}= {25} {100}
x=20
Therefore, 25% of 80 is 20
sorry if this is hard to understand it was what was going on in my brain. Hope this helps tho byeeeeee
53 decreased by twice Mai's score
Answer:
This expression can be written as 53-2m
Step-by-step explanation:
Sometimes it can help to reword the sentence...
2 times Mai's score is being subtracted from 53.
Use 'M' for Mai's score:
53-2m
An employee receives a 6% raise each year. His salary this year is $25,000. Which two expressions will calculate his salary for next year?
Answer:
25,000x1.06 or 25,000/100=250x106=26,500
Step-by-step explanation:
Which is the mode of this data?
12, 19, 22, 17, 15, 18, 15, 14, 16
Answer:
Sry but i hope u have great christmas and get all the gifts you wnated.
Step-by-step explanation:
Which undefined term is used to define an angle?
line
plane
point
ray
Solve for the value of q.
(49-5)°
39°
The midpoint of \overline{\text{AB}}
AB
is M(-2, 5)M(−2,5). If the coordinates of AA are (1, 7)(1,7), what are the coordinates of BB?
The coordinates of the B is obtained as (-5, 3).
What is referred as coordinates?Coordinates are 2 numbers (Cartesian coordinates) or a letter and a number that point to a specific point on a grid known as a coordinate plane.
A coordinate plane does have four quadrants as well as two axes: x (horizontal) and y (vertical) (vertical). The point where the two axes intersect is known as the origin, and its coordinates are (0, 0).Coordinates are composed as (x, y), which means the x axis point comes first, accompanied by the y axis point.Now, as per the given question;
The coordinates of A is given as (1, 7).
The coordinates of mid point M is given as (-2, 5).
The coordinates are listed in pairs, with the x value at the top.
The shift in the x location is as follows:
1 - (-2) = 3
The change in y position is as follows:
7 - 5 = 2
Because the midpoint is half - way between B and A, the change will remain constant, so x is;
- 2 - 3 = -5
And for is;
5 - 2 = 3
Therefore, the values of the coordinates of B is found as (-5, 3).
To know more about the Cartesian coordinates, here
https://brainly.com/question/4726772
#SPJ9
The correct question is-
If M (-2, 5) is the midpoint of AB and the coordinates of A are (1, 7), what are the coordinates of B?
Algebra I Semester 1 Escam (SMS 20-21) 5 of 28
Which description best describes the function below?
I
11
5
1
2
4
-7
A The function is increasing.
B. The function's slope is -2.
C. The x-intercept of the function is (5,0).
D. The y-intercept of the function is (0,5).
Help! I need help asap
Answer:
3 looks right but I am not so sure
Step-by-step explanation:
sorry if i am wring
The cost of tea varies directly with the
mass. Liz bought 4.5 kg of tea for $10.35.
What is the constant of variation?
Answer: $27.6 is the constant of variation.
I hope this helped!
soy ell idredle a admana gua uag uga jjejeje
Whoever answers correctly will get Brainliest!
Answer:
B
Step-by-step explanation:
ty bought a notebook for $3 and pencils $2 if both items were on 25% off what did tyler spend
Answer: 1.25$
Step-by-step explanation:
25% of 5 dollars (total) is 1.25
I'll give brainly pls help
Answer:
I think the second one!
Step-by-step explanation:
HELPPPPPPP ME PLEASEEEEEEEEEE ILL GIVE BRAINLEST
Answer:
The answer is 7
Step-by-step explanation:
The time is 0 because it wants the depth before the snow melts. -0.5 times 0 is zero plus seven is seven.
Use the equation y=3x+1 to complete the table and solve for the missing y values. Identify the ordered pairs from the table. Select all that apply.
(-2, -7)
(-1, -2)
(0, 1)
(1, 3)
(2, 7)
Answer:
(-2, -5)
(-1, -2)
(0, 1)
(1, 4)
(2, 7)
Step-by-step explanation:
Substitute x with each number and solve equation.