Answer:
1.67 weeks
Step-by-step explanation:
Let X= time it will take to pave 1 kilometer?
1 week=3/5 kilometer
X week =1 kilometer
Cross multiply
3/5 X= 1
3X= 5
X= 5/3
1.67 weeks
Write an
algebraic expression to represent the area of the shaded region:
2y
4y + 3
Answer:
4y^{2}+3y
Step-by-step explanation:
First you need to distribute the values.
(4y+3)(2y) Using the "Rainbow Method" to multiply the polynomials
You Should get
8y^{2}+6y
Since this is the area of the rectangle and we need to find the area of the shaded region you need to dived 8y^{2}+6y in half because the shaded region is half of the rectangle.
8y^{2}+6y/2
Doing this you will get
4y^{2}+3y
What number should go in the space?
Multiplying by 1.25 is the same as increasing by __ _%.
Answer:
125
Step-by-step explanation:
1.25=125/100=125%
Organizers are launching fireworks over the top of the Washington
Monument in Washington, DC. Due to costs, they would like to find the
smallest shell possible that will reach the correct height. The monument
is 555 feet tall. The initial velocities of each size shell are given below.
size (in.) 2 3 4 5 6 8 10 12
initial velocity (ft/s) 117.5 144 166 186 203.5 235 263 287.5
The height of the firework t seconds after it is launched is given by
h = -16t^2 +vt where v is the initial velocity. Use the discriminant to determine
the smallest size shell that will reach over 555 feet. Explain. PLEASE HELP I WILL MARK BRAINLIEST!!!
find four numbers that are between 0.22 and 0.23, and put all numbers in order from least to greatest
Jesse looks at the prices of 5 guitars. The prices are $85,
$90, $88, $82, and $86. This data set does not contain an
extreme value.
Which measure of center should Jesse use to describe the prices?
A. Either the mean or the median. The values are about the same.
B. Mean absolute deviation (MAD)
C. Interquartile range (IQR)
D. Range
The answer is A. I did this test and it said it was A.
Help please thanks!!!
Answer:
The 4th choice which is y+1=2(x-3)
Combine like terms. 3x − 2y + 4z – x + 5y + 3x - 2y + 4z – x + 5y + z
3x-2y+4z-x+5y+3x-2y+4z-x+z
First, reorder(I put the like terms in parenthesis to help you see the work better).
(3x+3x-x-x)+(5y-2y-2y)+(4z+4z+z)
Now, we add/subtract like terms.
(6x-2x)+(5y-4y)+(8z+z)
Lastly, we combine.
4x+y+9z
---
hope it helps
If a:b=3:2 find the value of a+b / a-b
In the expression 3x + 5x – 3y + 5, which terms are “like terms”?
A. 3x and 3y
B. x and 5
C. 3x and 5x
D. all terms
Answer: C
Step-by-step explanation: 3x and 5x both have x
Please help! 15 points! Do not steal points or I will report! Explanation = Brainliest!
Solve [tex]\sqrt{384}[/tex] without going into decimals.
(Answer is below)
Let's solve this step-by-step.
1. Prime factorization of 384.
[tex]=\sqrt{2^7\times3}[/tex]
2. Apply the exponent rule. (Formula: [tex]a^b^+^c=a^b\times a^c[/tex])
[tex]=\sqrt{2^6\times2\times2\times3}[/tex]
3. Apply the radical rule. (Formula: [tex]\sqrt{ab} =\sqrt{a}\sqrt{b}[/tex] or [tex]a\geq 0,b\geq 0[/tex])
[tex]=\sqrt{2^6} \sqrt{2\times3}[/tex]
3a. Solve 2 to the 6th power.
[tex]\sqrt{2\times2\times2\times2\times2\times2} =8[/tex]
4. Multiply 2 by 3. (Note: Put the 8 in your final answer)
[tex]\sqrt{2\times3} =8\sqrt{6}[/tex]
Your answer is: [tex]8\sqrt{6}[/tex]
Let me know if you have any questions.
~ Lily, from Brainly.
Help please!
Extra points.
Answer:
option C is correct answer of this question
x is grater than or equal to 55.25
hope it helps
Answer:
C
Step-by-step explanation:
8x≥442
x≥55.25
greater than or equal
Plzzzzzzzzzzzzz help me i begggg u just find the number for the boxes
Answer:8.124. 9.42 10. TW=4.015 equation sin(35)=4.015/7. 11.WS=10.459 equation: Tan(69)=10.459/4.015
Step-by-step explanation:
use sine rule and tan rule like upwards and hope you get it right mate
a musician charges a $75 travel fee and a performance fee of $150 per hour. The musician made $675 after a show. Write an equation you can use to find out how long the show was.
Answer:
(75 * F) + (150 * T) = 675
Step-by-step explanation:
Answer:
y=150x +75
The value of x when y=675 is 4.
Step-by-step explanation:
x represents the number of hours long the show was.
y represents the amount of money the musician made.
oh please i need help lol
Answer:
Step-by-step explanation:
9.
Evaluate f(x) = [tex]-x{2}[/tex] for x = –3.
A. –9
B. –8
C. 4
D. –4
2.29+2.59-0.50-0.30 please help me out
Answer: the answer is 4.08
Step-by-step explanation:
Answer:
4.08
Step-by-step explanation:
2.29+2.59-0.50-0.30 is equal to 4.08
it's just addition and subtraction haha
SOMEONE HELP OR IM GONNA FAIL
A bag contains:
• 5 red marbles
• 6 blue marbles
. 3 green marbles
• 4 black marbles
• 2 yellow marbles
A marble will be drawn from the bag and replaced 100 times.
What is a reasonable prediction for the number of times a green
or black marble will be drawn?
Answer:
A green marble will be drawn 64444444444444444444444444444444444445372587542723784532784572384327542757235432785423752375428369823 to the sqaure root of 48727 times
Step-by-step explanation:
hola espanol taco chicop espanol
Is(-10,-7) a solution to this system of equations?
Answer:
picture?
Step-by-step explanation:
what equation?
Question 14 pls for my math class
PLEASE HELPPP MEE.....
Answer:
C ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
I NEED HELP WITH THIS I DONT UNDERSTAND IT
Find the solution of the system of equations. -10x+8y= -44 4x+8y=40
Answer:
(6, 2)
Step-by-step explanation:
i hope this helps :)
What is the solution for the following system of equations?
2x + y = 7
x - 2y = 6
I got you bro!
Answer:
{x,y} = {4-1}
You might be wondering how I got this, well here are the steps:
System of Linear Equations entered :
[1] 2x + y = 7
[2] x - 2y = 6
Graphic Representation of the Equations :
y + 2x = 7 -2y + x = 6
Solve by Substitution :
// Solve equation [2] for the variable x
[2] x = 2y + 6
// Plug this in for variable x in equation [1]
[1] 2•(2y+6) + y = 7
[1] 5y = -5
// Solve equation [1] for the variable y
[1] 5y = - 5
[1] y = - 1
// By now we know this much :
x = 2y+6
y = -1
// Use the y value to solve for x
x = 2(-1)+6 = 4
Solution :
{x,y} = {4,-1}
I hope this has helped you and have a wonderful day!
(9+5)(3+2)⁰
Evaluate
A:0
B:1
C:14
D:15
Answer:
C:14
Step-by-step explanation:
(9+5)(3+2)°= (9+5)(1)=14
Need help I’m getting stuck on this problem
Answer:
y is already isolated in the top equation
x = 4
y = 12
(4,12)
Step-by-step explanation:
y is already isolated in the top equation
plug y = 3x into bottom equation
5x + 2y = 44
5x +2(3x) = 44
5x + 6x = 44
11x = 44
x = 4
plug x = 4 into y = 3x
y = 3(4)
y = 12
The ratio of fish to turtles in a pond is
20:3. There are 80 fish in the pond.
How many turtles are in the pond?
A 10
14
C 12
D 16
Answer:
C : 12
Step-by-step explanation:
Answer:
12 turtles
Step-by-step explanation:
First, if the ratio of fish to turtles is 20:3 and there are 80 fish, then we know that you have to divide 80 by 4 to get the answer 20. However, to find out how many turtles there are you need to do the opposite and multiply instead of dividing. So you do 3 x 4, which get you your answer.
Hope this helps!
What is the 30th term of the linear sequence below?
-5, -2, 1,4,7,...
Answer:
82
Step-by-step explanation:
... 73, 76, 79, 82, 85, 88, 91 ...
Consider the equation and the graph. 2/x+4 = 3^x +1
2/x+4=3^x+1It's too short. Write at least 20 characters to explain it well.
Does anyone know how to do this!!!!
A- (x,y) -> (x,-y)
B- (x,y) -> (-x,y)
C- (x,y) -> (y,x)
D- (x,y) -> (y, -x)
Answer: D
Step-by-step explanation: