Step-by-step explanation:
Area = pi × r²
144 pi cm² = pi × r²
144 pi ÷ pi = r 2
root 144 = r
12 cm = r
diameter = 2r = 2(12) = 24 cm
plssssss help
O 5 units
O 10 units
O 9 units
O 13 units
i rlly need help im stuck can someone help me out. What the total price?
The domain of a function h(x) is x > 3, and the range is y2-2 What are the domain and range of its inverse function, h-'(x)?
Answer:what’s the answer plz
Step-by-step explanation:
please answer this question
Answer:
18 pounds/bucket.
Step-by-step explanation:
All you have to do is 450 divided by 25 and you get 18 :)
Answer:
18
Step-by-step explanation:
450lbs / 25wieght = 18
Simplify negative 4 over 3 divided by 2 over negative 6
Answer:
-4 x 3= 12 divid 2= 6 x -6 =12
Step-by-step explanation:
A researcher needs 25 mL or 45%
base Solution for a certain
expiriment, but she has only 15%
Solution and 65% Solution. How
many mL of the 15% and the
65% Solutions should she mix to
get what She needs?
Answer:
10 mL of 15% solution
15 mL of 65% solution
Step-by-step explanation:
If x is the volume of 15% solution, and y is the volume of 65% solution, then:
x + y = 25
0.15 x + 0.65 y = 0.45 (25)
Solve with substitution:
0.15 x + 0.65 (25 − x) = 0.45 (25)
0.15 x + 16.25 − 0.65 x = 11.25
0.50 x = 5
x = 10
y = 15
Rewrite the equation below so that it does not have fractions.
4 - 2/3x = 5/6
Answer:
I think it's 19/4 because I looked it up and that's what it said
7. Melissa bought 8 yards of string to make bracelets. She wants to cut the string in equal pieces that is 1/2 yard
long. How many pieces of strings with Melissa have?
A 4
B 16
C 40
D 50
Please answer this it’s for a test and I suck in math I don’t even know how I’m in pre ap
Step-by-step explanation: To find this answer, you want to divide the amount of yards in half. This is the case since each string is 1/2. So as a result, each yard of whole string will produce 2 strings. To find your final answer, multiply 2 strings by 8 yards.
A purse contains a collection of quarters, dimes, nickels, and pennies. The average value of the coins in the purse is 17 cents. If a penny is removed from the purse, the average value of the coins becomes 18 cents. How many nickels are in the purse?
Answer:
There are total of 17 coins in the purse
Step-by-step explanation:
Let x represent the no of coins in the purse
Let y represent the total amount
y/x = 0.17
y = 0.17*x............................(i)
y-0.01 / x-1 = 0.18
y - 0.01 = 0.18x -0.18........(ii)
We substitute y = 0.17 x into the second equation:
0.17x - 0.01 = 0.18x - 0.18
0.17 = 0.01x
x = 17
Hence, there are total of 17 coins in the purse
In 2016, the cost of 2 ounces of pure gold was $2,640. Complete the double number line to show the cost for 1, 3, and 4 ounces of gold.
Answer:
1 would be 1320
3 would be 3960
4 would be 5280
Step-by-step explanation:
The cost of 1, 3 and 4 ounces of gold in 2016 was $1,320, $3,960 and $5,280 respectively.
Cost of 2 ounces of gold in 2016 = $2,640
Cost of 1 ounce of gold in 2016 = Cost of 2 ounces of gold in 2016 ÷ 2
= $2,640 ÷ 2
= $1,320
Cost of 3 ounces of gold in 2016 = Cost of 1 ounce of gold in 2016 × 3
= $1,320 × 3
= $3,960
Cost of 4 ounces of gold in 2016 = Cost of 1 ounce of gold in 2016 × 4
= $1320 × 4
= $5,280
Therefore, the cost of 1, 3 and 4 ounces of gold in 2016 are $1,320, $3,960 and $5,280 respectively.
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solve this - 4x < 32
Answer:
[tex] - 4x < 32 \\ or \: - x < \frac{32}{4} \\ or \: - x < 8 \\ or \: x < - 8 \\ \\ therefore \: x \: < - 8.[/tex]
Thank you ☺️
17.) You want to purchase 4 board games that are $15 each. There is a 6% sales tax. What is the
total amount of your purchase?
Answer:
$63.60
Step-by-step explanation:
4 board games are $15 each, multiply 4*15 = 60.
There is a 6% sales tax, so it is 6% extra. To calculate 6% as a decimal, divide it by 100, so 6/100 = 0.06. Now that it is 0.06 extra, you add 0.06 to 1.00 because 1.00 is the 100% of the price (the $60). So now it is 1.06 of the price. Multiply 60 * 1.06 and you get $63.60
Answer:
60.36 cents
Step-by-step explanation:
you have to times 60 by .6 then you get 36 and that is how much taxes cost.
Sally prepaid
11/
the price of a ticket to a concert. The amount she prepaid was $15.
What was the total price of the ticket?
pls help
Answer: option c
good luck
Answer:
Step-by-step explanation:
30
Write a system of linear equations that has (-4, 8) as the solution. Once you have made your system of equations, solve it algebraically to show that you do indeed get the solution (-4, 8).
Answer:
See below
Step-by-step explanation:
(-4, 8) has to be the solution.
1st equation: -4x+8y = 1
2nd equation: 8x - 4y = 1
These should work. Do the matrix-substitution combo method to see:
-4 8 1
.8 -4 -1
Reduce and and matrix-substitution combo:
1 0 -4
0 1 8
The reduced eckerd form of the matrix shows that the solutions are (-4, 8)
Therefore it -4x + 8u = 1 and 8x - 4y = 1 are the two equations for the system.
Evaluate each using the values given. P-q ÷ 3; use p= 4, and q = 3
Answer:
3
Step-by-step explanation:
p - q ÷ 3 = ?
First, substitute in 3 for q and 4 for p
4 - 3 ÷ 3 = ?
You divide first because of the PEMDAS rule (Parenthesis, Exponents, Multiplication Division (left to right) Addition Subtraction (left to right)
4 - 1 = ?
Subtract to get your answer:
3
I hope this helps :)
Write the equations of the following lines.
a. The line is parallel to y=3x+2 and passes through the point (0,0).
b. The line is perpendicular to the graph of y=x+1 and passes through the point (1,1).
PLS HELP! THANK YOU!
Answer:
a. y= 3x
b. y= -x + 2
Step-by-step explanation:
Its the answer
Answer:
b is y=2x-1 and i dont know for a. im also stuck on it
Step-by-step explanation:
Which of the following is the closest approximation to V20 ?
A 2
B. 3
C. 4
D. 5
Answer:
B.3
Step-by-step explanation:
Why because like 3 my favorite number and i had this same problem and the answer was 3.
Plz help.. I asked this question on English, but no one answered.
Thoreau uses the following words to present his theories about simple, principled living. To practice using these words, write the letter of the word that is closest in meaning next to each numbered term.
WORD LIST:
A. abject D. impetuous G. pervade
B. congenial E. misgiving H. transgress
C. deliberately F. perturbation
1. err-- 2. wretched-- 3. impulsive-- 4. doubt--
5. disturbance-- 6. friendly-- 7. thoughtfully-- 8. permeate--
Answer:
Step-by-step explanation:
A. abject - 2. wretched
B. congenial - 6. friendly
C. deliberately - 7. thoughtfully
D. impetuous - 3. impulsive
E. misgiving - 4. doubt
F. perturbation - 5. disturbance
G. pervade - 8. permeate
H. transgress - 1. err
Hope this helps :)
Answer:
Step-by-step explanation:
A. abject - 2. wretched
B. congenial - 6. friendly
C. deliberately - 7. thoughtfully
D. impetuous - 3. impulsive
E. misgiving - 4. doubt
F. perturbation - 5. disturbance
G. pervade - 8. permeate
H. transgress - 1. err
Hope this helps :)
ASAP I need help on this
Answer: x = 6x/5
Step-by-step explanation:
Answer:
x = 10/3
Step-by-step explanation:
[tex]\frac{x}{2} + \frac{2}{2} = \frac{4x}{5}[/tex]
[tex]\frac{x + 2}{2} = \frac{4x}{5}[/tex]
[tex]x + 2 = \frac{8x}{5}[/tex]
5x + 10 = 8x
10 = 3x
x = 10/3
Select the coordinates of two points that are on the line x = 5.
Answer:
anything as long is 5 is in the x spot, ex: (5, 1) or (5, 2)
Step-by-step explanation:
x=5 is a straight line up from the x axis where 5 is, meaning it has an undefined slope
Pick < ,< or = to make the statement true. 11 ..... 52/9
Answer:
11>52/9
Step-by-step explanation:
52/9 = 5.7777....
11> 5.77777....
Solve for the variable.
pls help me
Answer:
b=17
Step-by-step explanation:
180-(68+19)=93
5b+2+93=180
5b+95=180
180-95=85
5b=85
85/5=17
b=17
how do you simplify this?
Answer:
tan x
Step-by-step explanation:
(tan-x)[sec(pi/2)-x] (sin-x)
We know that tan (-x) = - tan (x) and sin (-x) = - sin (x)
-(tanx)[sec(pi/2)-x] -(sinx)
(tanx)[sec(pi/2)-x] (sinx)
Using the identity sec = 1/ cos
sec ( pi/2 -x) =1/cos ( pi /2 -x)
We know that cos (s-t)=cos (s) cos(t) + sin (s) sin (t)
1/ ( cos pi/2 cos x + sin pi/2 sin x) = 1/(0 cos x - 1 sinx) = 1 / sinx
Replacing into the equation
(tanx)[1/ sinx] (sinx)
tan x
Select all equations that are equivalent to (5x+6)2=3−(4x+12) .
a. 5x+6=3−(4x+12)
b. (5x+6)2=−4x−9
c. 52x+3=3−(4x+12)
d. (5x+6)2=−4x+15
e. 5x+6=−8x−18
Answer:
B
Step-by-step explanation:
ita only b .............
The equations that are equivalent to (5x + 6)2 = 3-(4x +12) is (5x+6)2=−4x−9.
Option B is correct.
The very first thing to do is to solve the expression in the given question.
SO,
(5x + 6)2 = 3-(4x +12)
Open brackets
10x + 12 = 3 - 4x - 1210x + 12 = -4x - 9Collect like terms
10x + 4x = -9 - 1214x = -21x = -21/14
Now, we will solve each of the given options to determine which one corresponds to the solution to the expression above.
Starting with Option (a)
5x + 6 = 3 - (4x + 12)
Open brackets
5x + 6 = 3 - 4x - 125x + 6 = -4x - 95x + 4x = -9 - 69x = -15x = -15/9Option (a) is incorrect
b.
(5x + 6 )2 = -4x - 9
Open brackets
10x + 12 = -4x -9Collect like terms10x + 4x = -12 -914x = -21x = -21/14Option (b) is correct
(c.)
52x + 3 = 3 - (4x + 12)
Open brackets
52x + 3 = 3 - 4x - 1252x + 3 = -4x - 952x + 4x = -9 - 356x = - 12x = -12/56x = -3/14Option (c) is incorrect
(d)
(5x + 6)2 = -4x + 15
Open brackets
10x + 12 = -4x + 1510x + 4x = -12 + 1514x = 3x = 3/14Option (d) is incorrect
(e)
5x + 6 = -8x - 18
Collect like terms
5x + 8x = -18 - 613x = - 24x = -24/13Option (e) is incorrect
Therefore, we can conclude that the correct equation equivalent to the given expression in the question can be seen in Option b.
Learn more about algebraic expression here:
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Half the product of two numbers x and y minus five times a third number z
Answer:
(1/2)x =y-5+3z
Step-by-step explanation:
The expression for Half the product of two numbers x and y minus five times a third number z, [tex]\frac{xy}{2} - 5z[/tex]
What are expressions?An expression is a sentence with at least two numbers or variables having mathematical operation. Maths operations can be addition, subtraction, multiplication, division.
For example, 2x+3
Given that,
A statement, Half the product of two numbers x and y minus five times a third number z
The expression for the given statement = ?
First line- Half the product of two numbers x and y
⇒ [tex]\frac{xy}{2}[/tex]
Second line- five times a third number z
⇒ 5z
Third operation-
Minus both the expressions
⇒ [tex]\frac{xy}{2} - 5z[/tex]
Hence, the expression is [tex]\frac{xy}{2} - 5z[/tex]
To know more about Expressions check:
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#SPJ5
helpp asappp it’s just one question!!!
Can somebody please tell me what 1 1/3+(−5/6) is??
1/2
Step-by-step explanation:Hi there !
1 1/3 + (-5/6) =
= (1*3+1)/3 - 5/6
= ²⁾4/3 - 5/6
= 8/6 - 5/6
= (8 - 5)/6
= 3/6
= 1/2
Good luck !
can you help me answer the question?
Step-by-step explanation:
Uh, uh, uh, uh
Day and night (what, what)
I toss and turn, I keep stressing my mind, mind (what, what)
I look for peace but see I don't attain (what, what)
What I need for keeps this silly game we play, play
Now look at this (what, what)
Madness to magnet keeps attracting me, me (what, what)
I try to run but see I'm not that fast (what, what)
I think I'm first but surely finish last, last
'Cause day and night
The lonely stoner seems to free his mind at night
He's all alone somethings will never change
The lonely loner seems to free his mind at night (at, at, at night)
At, at, at, at, at, at night
At, at, at, at, at, at night
Hold the phone (what, what)
The lonely stoner, Mr. Solo Dolo (what, what)
He's on the move can't seem to shake the shade (what, what)
Within his dreams he see's the life he made, made
The pain is deep (what, what)
A silent sleeper you won't hear a peep, peep (what, what)
The girl he wants don't seem to want him to (what, what)
It seems the feelings that she had are through, through
'Cause day and night
The lonely stoner seems to free his mind at night
He's all alone through the day and night
The lonely loner seems to free his mind at night (at, at, at night)
Day and night
The lonely stoner seems to free his mind at night
He's all alone, some things will never change (never change)
The lonely loner seems to free his mind at night (at, at, at night)
Day and night
The lonely stoner seems to free his mind at night
He's all alone somethings will never change
The lonely loner seems to free his mind at night (at, at, at night)
At, at, at, at, at, at night
At, at, at, at, at, at night
At, at, at, at, at, at night
At, at, at, at, at, at night
Ross said that if (x² + a)(x2 + b) = O means that (x2 + a) = 0 or (x2 + b) = 0, then(x+
a)(x2 + b) = 2 means that (x2 + a) = 2 or (x? b) = 2. Do you agree with Ross? Explain
why or why not.
9514 1404 393
Answer:
no; 2 has many factors besides 2
Step-by-step explanation:
The zero product rule says the only way a product may have a value of zero is if one or more factors is zero. That is why one of the factors of ...
(x^2 +a)(x^2 +b) = 0
must have a value of 0.
__
The same cannot be said of 2. We might have (1/2)(4) = 2, for instance, in which neither factor is 2. That a product is 2 is not a requirement that one of the factors be 2.
PLEASE NEED HELP:(
Joseph borrowed a book from a library. The library charged a fixed rental for the book and a late fee for every day the book was overdue. The expression below shows the charges Joseph paid for the book when he returned it x days after the due date:
2 + 0.25x
What does the coefficient of the expression represent?
A:The fixed rental for the book
B:The total late fee for the book
C:The late fee per day for the book
D:The number of days the book was overdue
Answer:
C. The late fee per day for the book
Step-by-step explanation:
“ The library charged a fixed rental for the book and a late fee for every day the book was overdue.”
Answer:
C
Step-by-step explanation:
the problem says there is a late fee for every day the book is overdue, 'x' represents the days, so multiplying the two together filling in 'x' would give you the total late fee amount.
