subtract 7x2+4x-9 from 5x2+10x-5
Answer:
2x^2-6x-4
Step-by-step explanation:
(7x2 + 4x - 9)
-(5x2 + 10x - 5)
=
7x^2-5x^2=2x^2
4x-10x=-6x
-9-(-5)=-4
thus, your answer is 2x^2-6x-4
Answer:
41
Step-by-step explanation:
because I did it on a calculator and get it mentally
marking brainliest to whoever gives me the write answer
The carpenter needed a board that was 3.6 m long. How many inches will be needed?
Select one:
o
a. 9.1 in.
b. 129.6 in.
C. 141.7 in.
d. 3.9 in.
Answer:
c. 141.7 in
Step-by-step explanation:
multiply the length value by 39.37
Select the correct answer.
Which statement is true?
A. In any right triangle, the sine of one acute angle is equal to the cosine of the other acute angle
B. In any right triangle, the sine of one acute angle is equal to the sine of it's complementary angles.
C. In any right triangle, the cosine of one acute angle is equal to the cosine of it's complimentary angle.
D. In any right triangle, the sum of the sine of one acute angle and the cosine of the other acute angle is 1.
Answer:
The answer is B
Step-by-step explanation: Hope this helps
What is the domain of the step function f(x) graph form
Answer:
When a function is represented on a graph of against , the domain of the function is the values for which the graph is drawn. Looking at the graph more closely, we can see that this step function has been drawn for values from negative eight all the way up to 6.5.
Step-by-step explanation:
Answer:
Step-by-step explanation:
When a function is represented on a graph of against , the domain of the function is the values for which the graph is drawn. Looking at the graph more closely, we can see that this step function has been drawn for values from negative eight all the way up to 6.5.
Hope this helps! I can give examples if needed!
The price of a television is $245. The sales tax rate is 8%. What is the amount of sales tax?
Answer:
$19.60
Step-by-step explanation:
245 is 100% of the total.
x is 108% of the total.
245/100 = x/108
245(108) = 26460
26460/100 = 264.6
264.6 - 245 = 19.6
A n s w e r :
$ 1 9 . 6 0
E x p l a n a t i o n
T a k e t h e a m o u n t a n d m u l t i p l y b y t h e t a x r a t e t o
d e t e r m i n e t h e s a l e s t a x
t a x = 2 4 5 * 8 %
C h a n g e t o d e c i m a l f o r m
t a x = 2 4 5 * . 0 8
= 1 9 . 6 0
1. The measures of the angles in a triangle are x, 2x, and 2x - 20. What is the measure of the largest angle?
Answer:
Sum of the three angles of a triangle = 180 degrees
x+x+20+2 x=180
4 x=160
x=40
The angles are 40,(40+20).(2*40)
Answer 40,60,80
Sara is ordering a circular rug for her living room. The area of the rug is 157 feet squared. What is the radius of the rug to the nearest tenth of a foot?
Answer:
157/ pi= 49.97 which is r squared, so the square root of 49.97= 7.06 or 7.1
so the radius of the rug is 7.1 ft
Step-by-step explanation:
Which of the following is not a polynomial? 7−z 2p3q2− pq3 −5x+ 6y −3/x
The algebraic expression -5x+6y-3/x is not a polynomial.
The given polynomials are 7-z, 2p³q²-pq³ and -5x+6y-3/x.
What is the polynomial?A polynomial is a type of algebraic expression in which the exponents of all variables should be a whole number. The exponents of the variables in any polynomial have to be a non-negative integer. A polynomial comprises constants and variables, but we cannot perform division operations by a variable in polynomials.
Here,
In 7-z has non-negative integer as exponent
So, it is a polynomial
In 2p³q²-pq³ has non-negative integer as exponent
So, it is a polynomial
In -5x+6y-3/x has negative integer as exponent, which is [tex]x^{-1}[/tex]
So, it is not a polynomial
Hence, the algebraic expression -5x+6y-3/x is not a polynomial.
To learn more about the polynomials visit:
brainly.com/question/20121808.
#SPJ2
Evaluate 11 1/2 +(−4 2/3)x for x=6.
A. −17 1/2
B. −16 1/2
C. 36 1/6
D. 39 1/2
Answer:
C
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
Francis heard that a car radio was on sale for 30% off. If the sale price was $57.75, what was the original price of the raido?
A. $82.50
B. $75.30
Answer
b
step-by-step explanation:
Answer:
a 82.50
Step-by-step explana
82.50
30.00
pluse taxt =3.00
52.50.50
30.00
82 . 50
the sum of two numbers is 9 and their difference is 7
Answer: 8 and 1
Step-by-step explanation:
8+1=9
8-1=7
Can you please help me
Answer:
2.12
Step-by-step explanation:
Answer:
I think 0.088 altogether I got 63.088 with tax
Step-by-step explanation:
After 3 new students joined a class, the class had 30 students. Write an equation in which you can find n, the number of students in the class before the 3 new students joined.
Answer:
30-3=n
Step-by-step explanation:
Hope this helps!
Answer:
x+3=30
Step-by-step explanation:
There are x number of students, then 3 students were added to the class. Now there are 30 students.
what is π + e its very simple
Answer:
5.85987448
Step-by-step explanation:
Pie
Answer:
the answer to your question is 5.85987
which one of the following things is NOT an example of velocity?
1. 3 miles per hour towards home
2. driving south at 80 miles per hour
3. riding a bicycle at 10 miles per hour
4. diving downward into a pool at 5 meters per second
Answer:
4
Step-by-step explanation:
The figures are similar
Answer:
x is 10
Step-by-step explanation:
9+6=15 4+6=10
Help help help help !
Answer:Its D
Step-by-step explanation:
A pack of five basic solid T-shirts costs $29.95 in a store. The sales tax where they are sold is 7.75%. What is the unit cost of a t-shirt, the price per t-shirt, with tax included?
$5.99
$6.45
$6.75
$6.99
Answer:
6.45
Step-by-step explanation:
29.95+7.75%=32.27
32.27/5
6.45
Given line p is parallel to line q, measure of angle 3 = 5x - 3 and measure of angle 8 = 4x - 6, find x.
Answer:
None
Step-by-step explanation:
There is not enough information to be given a correct answer
is (0,0) a solution to the equation y=3x
=========================================================
Explanation:
The point (0,0) means x = 0 and y = 0 pair up together.
Recall that any point is always of the form (x,y).
If we plug x = 0 and y = 0 into the equation, we end up with,
y = 3x
0 = 3*0
0 = 0
We get the same thing on both sides, so we have a true equation.
Since we have a true equation, we've shown that (0,0) is a solution.
Visually this indicates (0,0) is on the line y = 3x. Put another way, the line y = 3x goes through the origin.
can someone help me with this please
Answer:
H' = (-4,-4)
I' = (-2,-4)
J' = (-2,-5)
can some one help first answer gets brainliest
Answer:
d
Step-by-step explanation:
uhhh math
Is the slope-intercept form and standard form of the same line equivalent?
Answer:
Linear equations can take several forms, such as the point-slope formula, the slope-intercept formula, and the standard form of a linear equation. These forms allow mathematicians to describe the exact same line in different ways.
hope this helps
If the value of y varies directly with x, which function represents the relationship between x and y when y= 16/5 and x = 20?
Not sure if this is the answer but this is what I got
Answer: y= 4/25 x
PLEASE HELP WILLGIVE YOU 100 POINTS AND PUT AS BRAINLIEST!!!!!
FIND THE SLOPPEE INTERCEPT FORMMM!! pLeAse HElPP ;'')
Answer:
10x+9
Step-by-step explanation:
Answer:
y=1/2x+35
Step-by-step explanation:
Find two points: 0,35 and 40,65.
65-35 is 20/40 or 1/2
y=1/2x+b
plug in 0,35
35=b
y=1/2x+35.
Hope this helps!
#Team Rainbows
URGENT 20 POINTS AND BRAINLIEST DUE TODAY
Answer:
I would help you but i usally know how todo this but i can't figure this out when i figure this out ill come back to it and edit my answer
Step-by-step explanation:
A gannet flies 24 1/2ft above sea level. It increases its elevation by 5ft. Then it dives and changes its elevation by -47 2/3ft. After it dives, what is the gannets elevation relative to sea level?
Answer:
Its elevation relative to the sea level is -18 1/6 ft (it is 18 1/6 below sea level)
Step-by-step explanation:
Here, we want to calculate the elevation relative to sea level
The sea level refer to the base of the sea
We follow the flight procedure;
distance of 24 1/2 ft above sea level , then go further up by 5
its elevation now is 24 1/2 + 5 = 29 1/2 ft
A change of -47 2/3 ft
So the elevation now will be;
29 1/2 - 47 2/3
= 59/2 - 143/3
= (177-286)/6 = -109/6
= -18 1/6 ft
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
Answer:
y=-3x-11
Step-by-step explanation:
..
The Kellam Booster Club made $1,638 selling tickets to the football games this season. A child's ticket costs $3 and they sold 120 of them. An adult ticket costs $9. How many adult tickets did they sell?
Answer:
They sold 142 adult tickets.
Step-by-step explanation:
120x3=360
142x9=1278
1278+360=1638