Solve the following system of equations for x using elimination
4x + y = 2
x - y = 3
A. -2
B. 1
C. 3.
D.4
Answer:
A
Step-by-step explanation:
A
Answer:
b 1 ksoeoeskmx
Step-by-step explanation:
ksowoxk374
Anyone want points or brainiest here is a question. What is 4-1!
:D
Answer:
it would 41 amiright?
Answer:
4-1=3
Step-by-step explanation:
hope it helps and have a great day :)
REEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
Answer:
first option
Step-by-step explanation:
3x - 7y and - 7y + 3x are equivalent expressions
3x is positive and - 7y is negative
As long as the signs on their coefficients do not change then they can be reversed, that is
3x - 7y = - 7y + 3x
In 5-7, write each number in equivalent forms using
the two other forms of notation: fraction, decimal,
or percent.
5. 27%
6. 0.91
6
7. 100
20 POINTS If YOU ANSWER THIS PLS
Answer:
5. 27/100 or .27
6. 91% or 91/100
7. 10000% 0r 100/1
Step-by-step explanation:
Im confused by number 7. Do you mean 1.00?
The following histogram represents the number of hours students practice each week for band
How many hours did most students practice?
Answer:
Most Students practiced 5 to 6 hours
Which function represents exponential growth?
a. f(x) = 3x
b. f(x) = x3
c. f(x) = x + 3
d. f(x) = 3x
FIRST PERSON TO ANSWER IS THE BRAINLIEST!!!!
PLEASE GIVE EXPLANATION OF HOW!!
Answer:
Either A or D, but the answer is [tex]f(x) = 3^x[/tex].
Step-by-step explanation:
We can check for exponential growth by checking for an [tex]x[/tex] in the exponent of a constant value in the function, which is this case for [tex]f(x) = 3^x[/tex].
f(x) = x + 3 function represents exponential growth. So the correct option is option is c.
An exponential function is a arithmetic function in the form f (x) = ax, where “x” is a variable and “a” is a constant which is know the base of the function and it will be greater than 0.
An exponential function is explain by the formula f(x) = ax, where the input variable x take place as an exponent.
The exponential curve turn on the exponential function and it depends on the value of the x.
The exponential function is an main arithmetic function which is of the form
f(x) = ax
Exponential Growth
In Exponential Growth, the quantity grow very slowly at first, and then quickly. The rate of change growth over time. The rate of growth becomes faster as time passes. The quick growth is meant to be an “exponential increase”. The formula to explain the exponential growth is:
y = a ( 1+ r )x
Where r is the growth percentage.
Therefore, f(x) = x + 3 is a function represents exponential growth.
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the base of the rectangular prism has an area of 1/8^2 and hieght of the prism is 2/3ft what is the volume of the prisim
Answer:
2/24 ft3 there you go mark brainlest
Pls help i dont know this one
Answer:
The answer is A :)
Step-by-step explanation:
Please help I will give Brainly if right
Which is the best unit of measurement to use when finding the mass of a small candy bar?
A. gram
B. kilogram
o
C. liter
D. meter
Answer:
b. kilogram
Step-by-step explanation:
Answer:
Gram
Step-by-step explanation:
because the candies are in very small in amount
so you can measure to use finding the mass of a small candy bar in gram
Can someone pls Help?? I need it ASAP ❤ 20 points!! Gets Brainliest if right!!
Answer:
70
Step-by-step explanation:
One photo takes up 528/264 mb, or 2mb.
2x35 = 70mb
Tell whether each equation will have a positive or negative solution by just typing positive or negative in the blank.
1. (-1) • (-25)
2. 62 ÷ (-8)
3. 18 ÷ 6
4. (-15) • (5)
LAST CHANCE!
GIVING 100 POINTS AND BRAINLIEST TO WHOEVER ANSWERS THIS QUESTION
WHATS 5+9+9
Answer:
23
Step-by-step explanation:
Consider the polynomial 9x2 – 16.
What is the value of ac?
What is the value of b?
What two numbers multiply to get ac and add to get b?
The factored form of 9x2 – 16 is
Step-by-step explanation:
The value of ac together is 16(9x^2) or 144x^2
The value of B is zero since there is no B
(b is x, ( note not x^2, but only 1x)
Answer:
What is the value of ac? -144
What is the value of b? 0
What two numbers multiply to get ac and add to get b? -12 and 12
The factored form of 9x² - 16 is (3x-4)(3x+4)
Step-by-step explanation:
Dude trust me
9 + 15 using the distributive property to factor out the greatest common factor
Answer:
24
Step-by-step explanation:
9 can be broken down to 3 because 3 x 3 = 9
15 can be broken down to 3 also because 3 x 5 = 15
> 9 + 15
= 3 ( 3 ) + 3 ( 5 )
= 3 ( 3 + 5 )
= 3 ( 8 )
= 24
Teri used 60% of 20 gallons of paint. How much did she use?
The base charge of a cab in new york is $2.50 as soon as you enter the cab. There is an additional charge of $2.50 per mile traveled. Calculate how many miles you can travel on $20 without giving any tip.
Answer:
7 miles
Step-by-step explanation:
What is the sign of f on the interval?
The function f(x) will be sometimes positive and sometimes negative on the interval
Option (3) is correct.
What is a function?An arrangement known as a function connects inputs to essentially one output.
In other words, a function is a relationship between variables, and the nature of that relationship—for example, y = sinx and y = x +6—defines the function.
Given function:
f(x) = (x - 5) (2x - 7) (7x - 3)
The term (x - 5) will be negative if x < 5.
The term (2x - 7) will be negative if x<3.5
So, If x = 4, (x - 5) will be negative but (2x - 7) will be positive, resulting in a negative overall value.
Therefore, if x = 3, then (x - 5) will be negative, as well as (2x - 7), making the whole value negative.
Hence, the function f is sometimes positive and sometimes negative on the interval.
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Carla plumbing charges $25 for a service call and $28 per hour, h, for labor for any repair. The total cost , t, for a repair can be calculated using the equation below
Mr Callahan paid a total of $165 for repair. How many hours did it take to complete his repair
Answer:
It took 5 hours
Step-by-step explanation:
Because 28 times 5 is 140 plus 25 for the call is 165.
A wise man once said, "300 reduced by 3
times my age is 84." What is his age?
A) 72 B) 48
C) 68 D) 61
Answer:
72
Step-by-step explanation:
Let the man's age be x
300 - 3x = 84
300 - 84 = 3x
216 = 3x
x = 216/3
x = 72
Answer:
A
Step-by-step explanation: cuz 300-72x3=84
Sam and Jane split the cost of one sandwich and two bottles of water. The sandwich cost $4.50 and EACH bottle of water cost $1.25. How much did each person pay? (Multiple Step Problem) * 10 points
Answer:
3.50
Step-by-step explanation:
1.25 x 2 = 2.50
2.50 + 4.50 = 7
7 / 2 = 3.50
Hope this helps!
pls help?!?!?!?!?!??!!
Answer:
m<A = 120°
m<C = 45°
Step-by-step explanation:
We can use the triangle sum theorem to find the measures of the angles.
m<A + m<B + m<C = 180°
Then substitute in their given values.
12x + 12 + 15 + 3x + 18 = 180°
Now simplify the equation and you get
15x + 45 = 180°
Continue to solve
15x = 135
x = 9°
Now substitute this value of 9 for the angle expressions of <A and <C
(12 x 9) +12 = m<A
m<A = 120°
(3 x 9)+ 18 = m<C
m<C = 45°
Hope this helps. To check your answer you can add up all the answers to see if it equals 180°.
What is the slope of y =4x -3
Change in v = 9.8 m/s 2x t. The diagram shows a ball falling toward Earth in a vacuum. 1 Time (s) o 1 y = 0 m/s 2 3 4 What is the velocity of the ball at 3 seconds?
A. 29.4 m/s
B. 39.2 m/s
C.9.8 m/s
D. 19.6 m/s
I WILL MARK BRANILIEST!!!!!!!
Answer:
what is the answer
i think 29.4
Step-by-step explanation:
The answer is 29.4
I just did it
Taylor rates expression with five terms. 05 terms are like terms. How many terms are in equipment expression with the least number of terms? Explain.
Answer:
i dont know this one sdfghjasdfghj
Step-by-step explanation:
A person rented a canoe for 4 hours a paid total of $36. If renting the canoe costs an initial fee of $12 plus an additional amount for each hour the canoe is rented, which graph represents the total cost, y, in dollars, of renting the canoe for x hours.
Answer:
do you have a picture of the graph??
if not, the canoe is 6$ and hour and the equation to solve was
36=4x+12
Step-by-step explanation:
Et of y=x2-4 and + y + 2 = 0?
The equation y = x2 – 4 + y + 2 = 0 can be solved by completing the square.
What is equation?An equation is a mathematical statement that to express our equal. Is consist of two expression separated by an equal sign and can contain numbers, variables and operators. Equation get be used to solve problems make prediction and describe relationship between different quantities. Equation can be can also be used to represent physical laws and other phenomena.
First, subtract y from both sides of the equation to get x2 - 4 + 2 = y. Then, subtract 2 from both sides of the equation to get x2 - 6 = y. Finally, add 9/4 to both sides of the equation to get (x - 3/2)2 = 9/4 + y.
This equation can be solved by taking the square root of both sides to get x - 3/2 = ±√(9/4 + y). Finally, add 3/2 to both sides of the equation to get x = 3/2 ±√(9/4 + y).
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can someone actually help?
Answer:
[tex]5\sqrt{2} =7.07106781187[/tex]
Step-by-step explanation:
i hope this was what you were looking for
in not less than 50 words write an essay on your favorite subject and why u like it
Answer:
i like science because its combines one of my favorite subjects and turns it into logic.
Find m
measure of angle YQR=? Degrees
Answer:
21°
Step-by-step explanation:
Since these are both equivalent right triangles, ∡RQY and ∡PQY are the same. So set them equal to each other.
16x-27=5x+6
x=3
Next plug x into ∡RQY
16(3)-27=21°
Answer:
Step-by-step explanation:
3
