What is the value of the expression below when z = • 3?
622 + 2z + 10
Answer:
632.6
Step-by-step explanation:
Z = .3 right? It looks weird on my screen
Anyway, if z is .3 than this is how to solve
First you plug in 0.3 where the z would go, making the expression 622 + 2(0.3) + 10. Then you solve! (below)
622 + 2(0.3) + 10.
622 + 0.6 + 10.
622 + 10 + 0.6
632 + 0.6
632.6
I hope this helped! If you have any questions, feel free to message me :)
Which numbers are rational?
Answer:
1, 4, 5
Step-by-step explanation:
a rational number is defined as a number that can be written as a fraction. so, 4 and 5 are automatically checked off. 1 also simplifies to plus or minus 11, which is a whole number, meaning it is automatically rational. 2 is not rational because there is no set pattern in the decimal, so it can not be written as a fraction. 3 is the same thing, so it is irrational.
A bathtub has 50 gallons of water in it. It drains at a rate of 5 gallons per minute. How long will it take to drain?
Answer:
10 minutes
Step-by-step explanation:
50 divided by 5= 10
Answer:
10 minutes
Step-by-step explanation:
You are dividing in this equation 50 by 5
50 divided by 5 is 10 since 10x5 is 50
Rafael can type 24 words in 6 minutes. What is his rate in words per minute
Answer:
24/6= 4
4 words per minute
Step-by-step explanation:
Answer:
4 words per minute
Step-by-step explanation:
Rafael can type 24 words in 6 minutes, so we divide 24 and 6 to get 4 words per minute.
f(x)=−2(x+4)
What is the value of f(−1)?
Kiara has $450 in the bank. After
buying groceries she has $398.72 left in
her account. Write and solve an
equation to determine how much she
spent at the grocery store.
Please please please help
Jenny is picking apples to make apple pie. The amount of
apples that she needs to pick varies directly with the
number of pies she plans to bake. If Jenny needs to make 12
apple pies, she will need to pick 42 apples. How many apples
would she need to pick if she was only making 8 pies?
atus
kam
Suppose that y varies directly with x
and y = 5 when x = 6. What is y
when x= 5?
Be sure to simplify your answer.
у
Answer:
i need free points, thank you
Step-by-step explanation:
Step-by-step explanation:
y varies x
y=kx
when y=5;x=6
5=6k
5/6=k
Now, when y=?;x=5
y=5\6(5)
y=25\6
y=4.17
Solve the following quadratic equation by factoring.
x^2 - 5x = 14
(Answers are in photo)
10 points!!!
Please explain how you got your answer.
Answer:
x = 7, -2
Step-by-step explanation:
Factor and set each factor equal to 0==========================================
Work Shown:
x^2 - 5x = 14
x^2 - 5x - 14 = 0
(x-7)(x+2) = 0 .... this step is further explained below
x-7 = 0 or x+2 = 0
x = 7 or x = -2
The order of the solutions does not matter.
-------------------------
To factor x^2-5x-14, we need to find two numbers that multiply to -14 and add to -5. This is done through trial and error. I recommend making a table to help organize everything. See the diagram below.
After a bit of guess work, you should find that -7 and 2 are the two values we're after
-7 + 2 = -5
-7 * 2 = -14
This is why x^2-5x-14 = (x-7)(x+2)
Consider this expression.
-3x2- 24x - 36
What expression is equivalent to the given expression?
Answer:
-3 2 6
Step-by-step explanation:
Consider this expression.
-3x2- 24x - 36
What expression is equivalent to the given expression?
-3 (x + 2)(x+6)
Drop down answer is in bold
The equivalent expression will be : - 3 (x + 2) (x + 6)
We have the following expression -
[tex]-3x^{2}[/tex] - 24x - 36
We have to find out the equivalent expression of above expression.
Expand the following expression - (x + 2)(x + 4).Above expression can be expanded in the following way -
(x + 2)(x + 4) = x(x + 2) + 4(x + 4) = [tex]x^{2}[/tex] + 2x + 4x + 16 = [tex]x^{2}[/tex] + 2x + 16
According to question -
[tex]-3x^{2}[/tex] - 24x - 36
- 3 ([tex]x^{2}[/tex] + 8x + 12)
-3 ([tex]x^{2}[/tex] + 6x + 2x + 12)
-3 [x(x + 6) + 2(x + 6)]
-3(x + 2)(x + 6)
Hence, the equivalent expression will be : -3(x + 2)(x + 6)
To solve more questions on equivalent expression, visit the link below -
https://brainly.com/question/1184774
#SPJ2
Jim and Mary saw a commercial on TV for a cruise line. The longer trip costs ???. The shorter trip costs only $1,629. How much less will Mary and Jim spend if they take the shorter ocean trip? If the answer is $529, find the number that will correctly replace ???.
Answer:
$2158 dollars.
Step-by-step explanation:
The longer trip would cost $2158 dollars, because if you add the total difference of the two costs with the cost of the shorter trip, your answer would be $2158 dollars.
(1/3)^2=? I need help with math I'm failing, because of my teacher
Answer:
1/9
Step-by-step explanation:
This is basically 1/3*1/3. The way you do this is multiply the top numbers together and then the bottom numbers, so 1*1=1 and 3*3= 9 so your answer is 1/9. Hope this helps you!
7
8
There are 32 desks in a room.
If x represents the number of rows of desks, which expression would equal the number of desks in each row?
0 32 + x
32 - x
O 32
0 3/x
The company's profit will be exactly $0 if it makes and sells jackets. The company will make a profit if it makes and sells jackets, but will not make a profit if it makes and sells jackets
Answer:
The company’s profit will be exactly $0 if it makes and sells
20 or 70
jackets. The company will make a profit if it makes and sells
between 20 and 70
jackets, but will not make a profit if it makes and sells
more than 70
jackets.
Step-by-step explanation:
Plato
Consider the following Expression.
-3(y+3)=2y+3
What Is the value of y?
Answer:
y= -12/5
Decimal form: -2.4
Step-by-step explanation:
Distribute the negative 3 on the left side
-3y-9=2y+3
Add 3y to both sides
-9=5y+3
Subtract 3 from both sides
-12=5y
Divide by 5 on both sides
y=-12/5 or -2.4
Help pls?????????????????????
275,000 plus 5.4 times 10 to the 5th power
Answer:
542750 would look like this in expanded form
Step-by-step explanation:
275,000 plus 5.4 times 10 to the 5th power can be written as...
[tex]275,000+5.4*10^{5}[/tex]
What is the factored form of n3 + 512?
Answer:
x^3-512
Step-by-step explanation:
i seriously hope this helps
You measure containers for international shipments. The height of the standard container is 6 feet and 7 inches. What is the height in meters?
Answer:
i dont know if its right but i think its 2.01
if im wrong im so sorry
The height is 2.0066 meter.
What is Unit measurement?Number systems are systems in mathematics that are used to express numbers in various forms and are understood by computers. A number is a mathematical value used for counting and measuring objects, and for performing arithmetic calculations. Numbers have various categories like natural numbers, whole numbers, rational and irrational numbers, and so on. Similarly, there are various types of number systems that have different properties, like the binary number system, the octal number system, the decimal number system, and the hexadecimal number system.
A number system is a system representing numbers. It is also called the system of numeration and it defines a set of values to represent a quantity
Given:
height= 6 feet and 7 inches
Convert feet to meter
1 feet= 0.3048 meter
6 feet = 6* 0.3048
=1.8288 meter
Now, convert inch to meter
1 inch= 0.0254 meter
7 inch = 0.0254 * 7
=0.1778 meter
So,
6 feet and 7 inches= 1.8288 + 0.1778
= 2.0066 meter
Learn more about this number system here:
https://brainly.com/question/11966194
#SPJ5
If x+5=20, what does X+10 equal?
Let's find the value of x
x + 5 = 20
Subtract 5 from both sides
x = 15
x + 10 = 15 + 10 = 25
What are all the correct equations
Answer:
The last one
Step-by-step explanation:
(4x5)+6x4+(9-3) (5+6) show your work
Answer:
110
Step-by-step explanation:
x+3=12 solve for x. x =
Answer:
X is 9
Step-by-step explanation:
9 + 3 = 12
simplify the expression:
3 (3 - 4z) =
A student records a physical property of a rock as 2.2N. Which physical property has the student measured?
What is (w-2)/w=3/6
w=?
Answer:
W=4
Step-by-step explanation:
what is the equation of the line that passes through (5,3) and is parallel to 5x+ y=8
Answer:
5x+y=28
..................................
Answer:
Step-by-step explanation:
y = -5x + 8
y - 3 = -5(x - 5)
y - 3 = -5x + 25
y = -5x + 28
HELP PLEASE AND THANK YOU!!!!
Answer:
the answer is -2.1
Step-by-step explanation:
you get this by putting that -4 where the x is and solving so it would look something like this
1.7x+4.7 for x= -4
1.7(-4) + 4.7
-6.8 + 4.7
-2.1
Select the table that shows a frequency distribution.
Answer:
Step-by-step explanation: