Answer:
x² + 2x - 3
Step-by-step explanation:
Step 1: Write expression
(4x² - 3x + 1) - (3x² - 5x + 4)
Step 2: Distribute negative
4x² - 3x + 1 - 3x² + 5x - 4
Step 3: Combine like terms (x²)
x² - 3x + 1 + 5x - 4
Step 4: Combine like terms (x)
x² + 2x + 1 - 4
Step 5: Combine like terms (constants)
x² + 2x - 3
v=vo+at;find a if v = 20, vo = 30, t =5.
Answer:
-2 = a
Step-by-step explanation:
v = vo + at
20 = 30 + a5
now get the numbers and the variable on different sides
30 + a5 - 30 = a5
20 - 30 = -10
-10 = a5
now im going to divide each side by 5
a5 / 5 = a
-10 / 5 = -2
-2 = a
Step-by-step explanation:
[tex]V = V _{0} + at \\ 20 = 30 + a \times 5 \\ 5a = 20 - 30 \\ 5a = - 10 \\ \\ a = - \frac{10}{5} \\ \\ a = - 2[/tex]
An instructor gives his class a set of 18 problems with the information that the next quiz will consist of a random selection of 9 of them. If a student has figured out how to do 13 of the problems, what is the probability the he or she will answer correctly
all 9 questions? =.0147
atleast 8 questions ?
Answer:
The probability the he or she will answer correctly is 1.5%
Step-by-step explanation:
it is math can someone help me, please
Answer:
Less than 3,
9/4
Step-by-step explanation:
Move the numbers to the lines to order them from least to greatest
Answer:
-3/2, 1.25, |-9/4|, 2.5, 121
Step-by-step explanation:
Convert all numbers to a decimal
-3/2 = -1.5
|-9/4| = 2.25
2.5 = 2.5
121 = 121.0
1.25 = 1.25
Now put them in order from least to greatest.
-3/2, 1.25, |-9/4|, 2.5, 121
The numbers to the lines to order from least to greatest; -3/2, 1.25, |-9/4|, 2.5, 121
How can we express numbers belonging to decimal numeral system?Suppose that the number is abcd.efg and belongs to the decimal numerical system.
Remember one thing that the place on the left of decimal point is called ones. Move one-one places to right, and divide by 10 and 10 more and more.
Convert all the numbers to a decimal
-3/2 = -1.5
|-9/4| = 2.25
2.5 = 2.5
121 = 121.0
1.25 = 1.25
Now put them in order from least to greatest, we get;
-3/2, 1.25, |-9/4|, 2.5, 121
Learn more about place value here:
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A team won 8 of 24 games it played in one season what percentage of games did it win
Answer:
it would have won 1/3 or .333333
Step-by-step explanation:
8/24 simplifies to 1/3, which equals .33333
Answer:
I'm pretty sure it's 33%
Step-by-step explanation:
8 is 1/3 of 24 and 1/3 as a fraction is 33%
3x + 5 = x - 3
Due today (in 10 minutes)
Answer:
I hope that helps!
x = -4
A tank of gas cost about $32.25 on a midsize car if the tank holds 15 gallons what is the cost per gallon?
Answer:
$483.75
Step-by-step explanation:
32.25 x 15 = 483.75
If I'm wrong, please kill me ;-;
Is 5 x n - 3 the correct algebraic expression for five times the difference of a number and three
Answer:
5(n-3)
Step-by-step explanation:
There would be parenthesis because you'd subtract three from the number first.
The sides of a rectangle are 4.06 meters and 14 meters. Taking significant figures
into account, what is the area of the rectangle?
Answer:
56.84
Step-by-step explanation:
For rectangles and squares you multiply those two numbers and there is your answer. Then for triangles you multiply those two numbers but then you divide by 2 always. You got this! Keep going!
How is 5/2 divided by 1/4 equals 10 responsible
Answer:
Step-by-step explanation:
'll just help with proving whether she is correct.
First of all, a fraction divided by a fraction can be made into multiplication since the division of two fractions is kinda difficult
so remember keep, change, flip
keep the first fractions, change the division symbol into multiplication, then flip the fraction i.e. 1/2 becomes 2/1
so 5/2 divided by 1/4 becomes
5/2 * 4/1
which then solved becomes
20/2 which is simplified to 10
Hope this helps :)
Divide:
−54 ÷ −9 =
pls help llllllllllllllll
Answer:
Step-by-step explanation:
When you divide two negative numbers, the negative sign cancels. So you just get an answer of 6.
Answer:
6
Step-by-step explanation:
-54 / -9
ok so first of all we can just change them to positive
54 / 9
this is what goes on in my head
the 2 digits equal 9
a number times 9 is just that number less then that number times 10
54 / 9 = 6
-54 / -9 = 6
Suppose that a ball is thrown into the air with an upward velocity of 4 feet per
second from a building that is 20 feet high. The equation that gives the height of
the ball above the ground at time t, in seconds, is h = 20 + 4t - 16t2.
Determine after how many seconds since the ball was released will it hit the ground?
seconds
Answer:
velocity
Step-by-step explanation:
Do you think you can write a disjunction that has no
solution? Explain your reasoning.
what is the answer for this
Answer:
no
Step-by-step explanation:
then you have nothing like no "pazas"!
URGENT!!!!!! Find the value of q in the following system so that the solution to the system is——
====================================================
Explanation:
The left hand side of the first equation is x-3y
The left hand side of the second equation is 2x-6y = 2(x-3y). Note how it's simply double of the first expression x-3y
If we multiply both sides of the first equation by 2, we get
x-3y = 4
2(x-3y) = 2*4
2x-6y = 8
Meaning that 2x-6y = 8 is equivalent to x-3y = 4. Both produce the same line leading to infinitely many solutions. Each solution will lay along the line x-3y = 4.
We can say each solution is in the set {(x,y): x-3y = 4}
Which is the same as saying each solution is of the form (3y+4,y)
is 12.68 greater the whole number 8
Answer:
no, it is not. 8 < 12.68
Step-by-step explanation:
what is the absolute value of -8? use the number line to answer the question.
Answer:
that will be 8 because you are moving forward or backward that amount of spaces
Andrew and Kate have $30 to spend on dinner, tax, and gratuity at Mo’s Restaurant. Tax is 6%, and they will give a 15% tip on the total bill after taxes. Their dinner costs $21.00. Which statement correctly explains whether Andrew and Kate have enough money to pay their bill?
Yes. They have enough to pay their bill: 30 dollars times 1.06 = 31 dollars and 80 cents and 31 dollars and 80 cents times 1.15 = 36 dollars and 57 cents.
Yes. They have enough to pay their bill: 21 dollars times 1.06 = 22 dollars and 26 cents and 22 dollars and 26 cents times 1.15 = 25 dollars and 60 cents.
No. They do not have enough to pay their bill: 30 dollars times 1.06 = 31 dollars and 80 cents and 31 dollars and 80 cents times 1.15 = 36 dollars and 57 cents.
No. They do not have enough to pay their bill: 21 dollars times 1.06 = 22 dollars and 26 cents and 22 dollars and 26 cents times 1.15 = 25 dollars and 60 cents.
Answer:
Yes. They have enough to pay their bill: 21 dollars times 1.06 = 22 dollars and 26 cents and 22 dollars and 26 cents times 1.15 = 25 dollars and 60 cents.
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Look at the middle 7 in the decimal 0.777. How is its value related to the value of the 7 to its left? To the value of the 7 to its right?
Answer:
Value of middle 7 = [tex]\frac{1}{10}[/tex](value of 7 to the left of the middle 7)
Value of middle 7 = [tex]10[/tex](value of 7 to the right of the middle 7)
Step-by-step explanation:
7 in the middle of number [tex]0.777[/tex] is equal to [tex]\frac{7}{100}[/tex]
7 to the left of the middle 7 is equal to [tex]\frac{7}{10}[/tex]
So,
[tex]\frac{7}{100}=(\frac{1}{10}) \frac{7}{10}[/tex]
That is value of middle 7 = [tex]\frac{1}{10}[/tex](value of 7 to the left of the middle 7)
Also,
7 to the right of the middle 7 is equal to [tex]\frac{7}{1000}[/tex]
So,
[tex]\frac{7}{100}=(10) \frac{7}{1000}[/tex]
That is value of middle 7 = [tex]10[/tex](value of 7 to the right of the middle 7)
Trevor has already run 26 miles on his own, and he expects to run 1 mile during each track practice. How many miles would Trevor have run after 24 track practices
Answer:
the answer is 50
you have to add 26 to 24
If the tax rate is 7%, what is the tax on a $60 stuffed animal?
Answer:
$4.20
nice
Step-by-step explanation:
pwease can i have help pwease if two answer I will give brainliest
Lin divides the polynomial 2x^2 -4x+1 by 4 and gets 0.5x^2 -x + 0.25. is 0.5x^2 - x +0.25 a polynomial
Answer: yes
Step-by-step explanation:
The expression 0.50 x² - x + 0.25 is a polynomial.
It is given that Lin divides polynomial 2x² - 4x + 1 by 4 and gets 0.5x² - x + 0.25.
We have to find out that whether the expression given is a polynomial ?
What do you mean by a polynomial ?
Polynomials are algebraic expressions that consist of variables and coefficients e.g., polynomial with one variable is x² + x - 12.
As per the question ;
Lin divides polynomial 2x² - 4x + 1 by 4 and gets 0.5x² - x + 0.25
Let's check ;
(2x² - 4x + 1 ) ÷ 4
= [tex]\frac{2x^{2} }{4}[/tex] - [tex]\frac{4x}{4}[/tex] + [tex]\frac{1}{4}[/tex]
= [tex]\frac{x^{2}}{2}[/tex] - x + 0.25
or
= 0.50 x² - x + 0.25
or a form of polynomial i.e., ax² + bx + c.
Thus , the expression 0.50 x² - x + 0.25 is a polynomial.
To learn more about polynomials click here ;
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OMG help what is the relationship between the 5's in 345,502 I think this is math
The first five in the number 345,502 is in the thousands place.
The second five in the number 345,502 is in the hundreds place.
This is the relationship between the two 5's.
Hope this helps!
What’s 0.83 answer when the 3 keeps repeating
Answer:
A decimal that never ends is called A repeating decimal or recurring decimal
[tex](x - 2) { }^{2} = 0[/tex]
How many solutions does this equation have?
Solve: 39 - 7x = -4(7x + 7) + 4
Can someone help me with this answer please. In hanley's school, 0.495 of the students participated in a club. If there are one thousand students in Hanley's school, how many participated in the club?
Answer:
495
Step-by-step explanation:
0.495 x 1000 = 495
Every morning for the past 12 days Beth used 2/3 of a cup of milk on her cereal to determine how much milk she used in total she set up the equation 2/3x12
Answer:
8
Step-by-step explanation:
2/3*12=24/3=8
easy way:
2/3*12/1=24/3=8
A box of 15 cookies costs $9.
What is the cost for 1 cookie?
Answer:
0.6
Step-by-step explanation:
Answer:The cost for 1 cookie is 60 cents.