Answer:
-5.6
Step-by-step explanation:
Let the given function be g(x) = 2x - 1
To get g(-2.3), you will substitute x = -2.3 into the expression as shown;
g(x) = 2x - 1
g(-2.3) = 2(-2.3) - 1
g(-2.3) = -4.6 - 1
g(-2.3) = -5.6
Hence the value is -5.6
Note that the function was assumed. Same procedure can be applies for any function g(x).
PLS HELP! DUE TODAY! I WILL GIVE BRAINLIEST TO PERSON WHO ANSWERS FIRST AND CORRECTLY! DONT ANSWER IF YOU DONT KNOW THE ANSWER!
Write a sentence to represent the equation 4m = -8.
Answer:
Four times 'M' equals to minus eight
Last week, animals R us sold 35 Total pets, Some cats in some dogs. They made a total of $1975. Dogs sell for $75 cats sell for $25. How many dogs did animals R us sell. show your work !
A. 14
b.35
c.22
d.17
Answer:
he sold 22 dogs and 13 cats
number of dogs = 22
plz mark my answer as brainlist plzzzz and option C .22 is the correct answer
Answer:
c. 22
Step-by-step explanation:
75 x 22= 1650
35-22=13
13 x 25= 325
325+1650= 1975
Consider the following scenario describing the residents of Charlestown: The list pairs resident's ages with their zip codes.
Does this scenario represent a function?
No, because people who are the same age can have different zip codes
No, because people who have the same zip code can be different ages
Yes, because people who are the same age can have different zip codes
Yes, because people who have the same zip code can be different ages
Answer:
No, because people who are the same age can have different zip codes!!
I took a test with this question and got it correct!!
Step-by-step explanation:
The difference of the square of a number and 28 is equal to three times that number find the negative solution
Answer:
The negative solution = x = -4
Step-by-step explanation:
Let the number be = x
The square of number = x²
The difference between the square of a number and 28 = x²-28
Given that the difference of the square of a number and 28 is equal to three times that number.
Thus, the equation becomes
[tex]x^2-28=3x[/tex]
subtract 3x from both sides
[tex]x^2-28-3x=3x-3x[/tex]
[tex]x^2-3x-28=0[/tex]
[tex]\left(x+4\right)\left(x-7\right)=0[/tex]
[tex]x+4=0\quad \mathrm{or}\quad \:x-7=0[/tex]
[tex]x=-4,\:x=7[/tex]
Thus, the negative solution = x = -4
if the equations 100x+300=500 and x+3=5 give the same answer, how are they related?
please help this is due soon
Answer:
Both are related as both have the answer same that is x=2.
Sushil was thinking of a number. Sushil subtracts 3.8 from the number and gets an answer of 53.6. Form an equation with
x
from the information.
Answer:
x = 3.8 + 53.6
Step-by-step explanation:
From the info that they gave you, you can tell that the original number is unknown, so that is x. Since Sushil is subracting 3.8, meaning, to get x, you're going to have to do the opposite which is........addition! So, to get x, you have to add 3.8, and 53.6. I hope I make sense!!
What is 723 divided by 31 , 1359 divided by and , 851 divided by 77 . Thank you!
Answer:
23.3 and 11.05
Step-by-step explanation:
hope it helped!
In her last basketball game, Carla scored 46 points. In the current game, she has scored 24 points so far. How many more two-points baskets must she make if she wants her total score in her current
game to be at least as great as her score in the last game?
Answer:
Carla needs to make at least 11 two-pointer shots in the surrent game
Step-by-step explanation:
The first thing we can do is to find the difference between the number of points that Carla scored in her first game and her second game.
This will be 46 - 24 = 22 points difference
Carla needs to make a certain number of two-pointers to get at least the same score she had in her previous game.
We can get this number of two-pointers that needed to be made by dividing the difference in scores by 2
i.e number of two-pointer shots = 22/2 =11 shots
Therefore, Carla needs to make at least 11 two-pointer shots to be able to get the same score in her current game.
im so lost could you please help me
Answer:
hosta = 2 $,,, geranium = 5 $
Step-by-step explanation:
if we make two eq.
1) .... 54 = 2h + 10g
2) ...... 40 = 10h + 5g
if we multiply 1st by -5 it turns to
3) ..... -270 = -10h - 50g
cancel both 10h
add eq. .. becomes : -230 = -46g
g = 5
substitute in any find , that h = 2
PLEASE HELP ITS DUE SOON! 40 points and i'll mark you as brainliest!! Also explain how you got the answer!!!
Answer: 6, 4.5
Step-by-step explanation:
70 points
Need answer fast
Answer:
C
Step-by-step explanation:
We did this in math ik it is right. Hope this helps! :)
the question is on the sheet.
area of the whole figure
= (x + 1)(2x + 3)
= x(2x + 3) + 1(2x + 3)
= 2 {x}^{2} + 3x + 2x + 3
= (2x)^(2} + 5x + 3
area of the unshaded region
= x(2x)
= 2x²
area of the shaded region
= 2x² + 5x + 3 - 2x²
= (2x² - 2x² ) + 5x + 3
= 5x+ 3
THEREFORE,
THE AREA OF THE FRAME IS C. 5x + 3
If 4 workers take 900 hours to finish a project, how long will it take 8 workers to complete the same project?
Answer: 350
Step-by-step explanation: If you multiply the amount of workers by two, then you divide the amount of time by two, and vice versa. So, in other words, whatever number you multiply the workers by, divide the time by that same number. I hope this helps!
Which statement best describes how the first-person narration in Fever 1793 engages readers?
Answer:
Mattie's perspective on her grandfather's strong-headed opinions gives readers an understanding of the influence he has on her. Mattie's perspective on the events of 1793 gives readers an understanding of the experiences and uneasiness of the time
Write an equation that represents the line
Use exact numbers
*50 POINTS PLEASE HELP
Answer:
y = -4/3x + 2Step-by-step explanation:
Use two points from the graph:
(0, 2) and (3, -2)Slope intercept formula:
y = mx + by-intercept is b = 2 as per the first point
Slope is found using slope formula:
m = (y2 - y1)/(x2 - x1)m = (-2 - 2)/(3 - 0) = -4/3So the equation is:
y = -4/3x + 2goodmorning all help me guys
Answer:
Step-by-step explanation:
a)1) As denominators are same, keep the same denominator for the result also
Add the numerators and write the new numerator.
[tex]\frac{3y}{4}+\frac{5y}{4}=\frac{3y+5y}{4}=\frac{8y}{4}[/tex] = 2y
20 Reduce to simplest form by dividing the numerator and denominator by GCF
3 erasers cost $4.41
What equation would help determine the cost of 4
erasers?
Answer:
Well you can divide 4.41 by 3 and then use that number and multiply it by 4
Step-by-step explanation:
Answer:
Using this equation: f(x) = 1.47x
The cost of 4 erasers is 5.88
each costs 1.47
You and 3 friends decided to share a pizza. If everyone got 2 pieces each, how many total pieces of pizza were there to begin with?
Answer:
8
Step-by-step explanation:
dhdhdhdhdhdhdhddijd
Answer:
6 pieces of pizza was started with
please hurry Solve: -23 = x - 23 *
Answer:
x = 0
Step-by-step explanation:
add 23 on both side and x equals zero
substitute x for 0, and the equation is still correct
What are you guys getting for x-Mas
im getting skateboards
Jenny is getting ready to go see "Black Christmas" with her friends and is trying to decide what to wear. She has 3 shirts : 1 blue, 1 purple and 1 red. She can also wear jeans or a skirt and she can wear boots or flats. How many different outfits can
Help me please also put step by step please.
Answer:
2 outfits.
Step-by-step explanation:
Answer:
12 different outfits
Step-by-step explanation:
3 shirts
jeans or skirt: 2 choices
boots or flats: 2 choices
If you have several thing you can do and each one has a number of choices, the total number of variations is the product of the numbers of choices.
3 * 2 * 2 = 12
Answer: 12 different outfits
A person's resting heart rate is typically between 60 and 100 beats per minute. Noah looks at his watch, and counts 8 heartbeats in 10 seconds. Write an equation for h, the number of times Noah’s heart beats (at this rate) in m minutes. h = _______________
PLEASE DO NOT ANSWER IF YOU DO NOT KNOW THE ANSWER. DO NOT ANSWER FOR POINTS IF YOU DO NOT KNOW WHAT THE ANSWER IS PLEASE. I REALLY NEED THE ANSWER. SO PLEASE PLEASE DO NOT ANSWER IF YOU DO NOT KNOW THE ANSWER AND JUST WANT THE POINTS.
Answer:
48 beats per minute
Step-by-step explanation:
I learned this is gym today he told us if you only count 10 seconds multiply the heart beat by 6 so the answer is 48 Noah's resting heart rate is lower than average so he's probably an athlete.
Can somebody help me in these questions? Will be marked as brainlest! :)
Answer:
2. A(n) = 8+(n-1)-6
3. (-3-(-4))/(-6-8)
= -1/14
Answer:
see explanation
Step-by-step explanation:
(2)
The explicit formula for an arithmetic sequence is
[tex]a_{n}[/tex] = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 8 and d = a₂ - a₁ = 2 - 8 = - 6 , thus
[tex]a_{n}[/tex] = 8 - 6(n - 1) = 8 - 6n + 6 = 14 - 6n
(3)
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (8, - 4) and (x₂, y₂ ) = (- 6, - 3)
m = [tex]\frac{-3+4}{-6-8}[/tex] = [tex]\frac{1}{-14}[/tex] = - [tex]\frac{1}{14}[/tex]
4. A hot air balloon hovers 100 feet about the ground. The balloon is tethered to the ground with a
rope that is 250 feet long. At what angle of elevation, is the rope attached to the ground? Round
you answer to the nearest degree.
Answer:
It should be about 112 degrees if rounded about 110
Step-by-step explanation:
HELP AND HURRY I WILL GIVE BRAINLIEST TO BEST ANSWER
Answer: 60
Step-by-step explanation:
6x10=60
help can someone please help me
Answer:
B=55
Step-by-step explanation:
2x+3x+2x+5=180
7x=175
X=25
B= 2x+5
B=2*25 +5
B=55
Divide
−4 1/3 ÷ −2 3/5
Answer:
1 2/3
Step-by-step explanation:
-4 1/3 ÷ -2 3/5
-13/3 ÷ -13/5
-13 x 5/ 3x -13
-65/-39
1 2/3
Which of the following could be the equation of a parallel to the line y=4?
•y=0
•y=4
•undefined
•y=4x
Answer:
y = 0 is parallel to y= 4 ..plz mark my answer as brainlist plzzzz if correct
y= 0 is parallel to y=4
I think it will help you.
This is hard. Again T^T
Solve with cramer's rule x+2y+3z=11, 2x+y+2z=10, 3x+2y+z=9
Answer:
x = 2 , y = 0 , z = 3
Step-by-step explanation:
Cramer's rule is a rule through which we can find the solution of linear equation.
we have the three linear equations as
x+2y+3z=11
2x+y+2z=10
3x+2y+z=9
AX=B
A: coefficient matrix
X= unknown vectors(x,y,z)
D = values of the linear equation (11 , 10 , 9)
now we find the determinant of the given linear equation
determinant of the matrix will be
A = [tex]\left[\begin{array}{ccc}1&2&3\\2&1&2\\3&2&1\end{array}\right][/tex] = 1(1-4) - 2(2-6) + 3(4 - 3)
= 1(-3) - 2(-4) + 3(1)
= -3+8+3 = 8
also D[tex]\neq 0[/tex]
so the determinant is Non zero we can apply Cramer's rule
we will be replacing the first column of the coefficient matrix A with the values of D
by replacing the first column we will get the value of the variable 'x'
Dx = [tex]\left[\begin{array}{ccc}11&2&3\\10&1&2\\9&2&1\end{array}\right][/tex] = 11(1-4) -2(10-18) + 3(20-9) = -33+16+33 = 16
x = [tex]\frac{Dx}{D}[/tex] = [tex]\frac{16}{8}[/tex] = 2
similarly
Dy = [tex]\left[\begin{array}{ccc}1&11&3\\2&10&2\\3&9&1\end{array}\right][/tex] = 1(10-18) -11(2-6) + 3(18 -30) = -8 +44 -36 = 0
y = [tex]\frac{Dy}{D}[/tex] = 0
Dz= [tex]\left[\begin{array}{ccc}1&2&11\\2&1&10\\3&2&9\end{array}\right][/tex] = 1(9 - 20) -2(18 - 30) + 11(4 -3) = -11 +24 +11 = 24
z = [tex]\frac{Dz}{D}[/tex] = [tex]\frac{24}{8} = 3[/tex]
so we have the solution as
x = 2 , y = 0 , z = 3
Therefore the solution for the given linear equations is (2,0,3).