Answer:
Expression.
Step-by-step explanation:An expression containing variables, numbers, and operation symbols is called an algebraic expression. is an example of an algebraic expression. Each expression is made up of terms. A term can be a signed number, a variable, or a constant multiplied by a variable or variables.
An expression is a number, a variable, or a combination of numbers and variables and operation symbols.
What is Expression?An expression is combination of variables, numbers and operators.
An expression is a number, a variable, or a combination of numbers and variables and operation symbols.
For example 2x+3y-4
In the given expression x and y are the variables.
plus and minus are the operation symbols.
4 is a number and 2 and 3 are the coefficients of a variable.
If the expression has an equal sign then it becomes the equation.
Hence, an expression is a number, a variable, or a combination of numbers and variables and operation symbols.
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The picture shows 3 steel rods. The rods are congruent, solid cylinders. The area of the top of the one rod is 7.07 square centimeters. The area of the body of one rod is 39.58 square centimeters. Find the total surface area of the 3 rods.
a) 53.72
b) 46.65
c) 139.95
d) 161.16
Answer: D, 161.16 square centimeters.
Step-by-step explanation:
The surface area of a cylinder (shape of each steel rod) is given by this formula:
[tex]A = 2\pi rh + 2\pi r^2[/tex], where the first 2*pi*r*h measures the area of the curved surface while the second 2*pi*r^2 measures the area of the two circles on the top and bottom.
We are given the area of the top of one rod, which is 7.07 square centimeters.
We are also given the area of the body of one rod, which is 39.58 square centimeters.
The top of one rod is the shape of a circle, and we know there are two circles on both sides of a cylinder, so the surface area of both circular sides are 7.07.
The total surface area of a cylinder is the body plus both circular ends, so the surface area for this cylinder is:
39.58 + 7.07 + 7.07 = 53.72
There are three cylinders, so multiply this value by three to get the answer, 161.16 square centimeters.
When subtracting decimals with the same sign you
Answer:
subtract
Step-by-step explanation:
let's say 1.1-1.1 same sign? yea. subtract.
9) A canoe rental company charges a $20 transportation fee and $30 an hour to rent a canoe. Which of the following inequalities would you use to find out how many hours James could rent a canoe if he could only spend at most $200? a. 20x + 30 < 200 b. 20x + 30 > 200 30x + 20 < 200 d. 30x + 20 > 200 C.
Plz hurry
Answer:
30x + 20 < 200
Step-by-step explanation:
Given parameters:
Transportation fee = $20
Charge per hour = $30/hr
Unknown:
Inequality representing then number of hours if he has $200 = ?
Solution:
Let the number of hours = x
At most is interpreted in inequality term as <, less than a certain amount;
For x hours,
30x + 20 < 200;
gives the number of hours James have access to the canoe if he has at most $200
HELPPP MY HW IS DUE IN 5 MINUTES. WHATS 2 PLUS 2. PLZZZ ANSWER QUICKKKK
Answer: 4
Step-by-step explanation: 2+2 is 4
(4)^2(−3)^4/ 2^6
what's 4 to the second power times -3 to the 4th power divided by 2 to the 6th power.
Answer: no idea
Step-by-step explanation:
LLLLLLLLLOOOOOOOOOOLLLLLLLLLLLLLLLL
Which values are in the solution set of the compound inequality –8 < 3x + 7 ≤ 10? Select three options.
O –15
O –5
O –3
O 0
O 1
Answer: 1&-5
Step-by-step explanation:
What is -5 5/8 + 3 1/2?
Answer:
-17/8
Step-by-step explanation:
Find the sum
please this is urgent
Answer:
the sum of this equation would equal 23875
What is the intersection of the sets C = {5, 7, 10, 13, 19) and D = {3, 9, 14, 15}?
O null set
O (5, 7, 9, 10, 13, 14, 15, 19}
O {5, 9, 14)
O {3, 19)
Answer:
Null/empty set
Step-by-step explanation:
The answer is null because neither Set C and D share the same numbers
La distancia de la Tierra a la Luna es de doscientos treinta y ocho mil novecientas millas. Escribe la distancia en forma estándar y forma expandida.
Answer: two hundred thirty-eight thousand nine, (2 x 100,000) + (30 x 10,000) + (8 x 1,000) + (9 x 1). doscientos treinta y ocho mil nueve, (2 x 100.000) + (30 x 10.000) + (8 x 1.000) + (9 x 1).
Step-by-step explanation: I learned it already.
Can someone please help me I'm having trouble figuring this out.
Jessie competes in hot dog eating contests. He can eat 32 hotdogs in 8 minutes. How many hotdogs can he eat in 12 minutes?
Answer:
256
Step-by-step explanation:
the way to solve is simple just multiply 32 times 8
Answer:
48!
Step-by-step explanation:
you would take 32/8 and thats 4 hotdogs a minute times 12 would be 48 hotdogs in 12 minutes
Solve pls it’s fun trust me
Answer:
22
Step-by-step explanation:
blue = 1
red = 10
green= 2
Answer:
43
Step-by-step explanation:
red:10
green 1:4
green 2:8
blue 1:3
blue 2:6
blue 1 + red 1 * green 1
PEMDAS: (10*4)=40
3+40=43
I need help like rn plzzzz Laura rents a movie for a flat fee of $2.00 plus an additional $0.50 for each night she keeps the movie. Choose the cost function that represents this scenario if x equals the number of nights Laura has the movie. c(x) = 2.00x + 0.50 c(x) = 2.00 + 0.50x c(x) = 2.50x c(x) = (2.00 + 0.50)x
Answer: c(x) = 2.00 + 0.50x
Step-by-step explanation:
Since they already charged her $2.00 leave that alone. They charge her .50 per night, x represents the number of nights she rented the movie. thus the answer is c(x) = 2.00 + 0.50x.
what is the distance between -4 and -9 on a number line
4 is smaller than 9 y_ghyyyggyyggggdffghbv y_ghyyyggyyggggdffghbv
HURRY QUICK WILL GIVE BRAINLIEST: Which decimal could be an irrational number?
0.9999...
0.1234512345...
8.3912845
2.12123123567...
Answer:
The answer is c. 8.3912845
Because the number has ended not like the rest of them repeating.
Simplify. Rewrite the expression in the form y^n
Answer:
y2(3)
=3y2
Step-by-step explanation:
UPS charges $7 for the first pound, and $0.20 for each additional pound. FedEx charges $5 for the first pound and $0.30 for each additional pound.
How many pounds, p, will it take for UPS and FedEx to cost the same? What is the cost? Write and solve an equation to show your work.
Answer:
1. 20 pounds
2. $11
Step-by-step explanation:
To set this up, you have to use a system of equations. It would look like this, where [tex]p[/tex] is pounds and [tex]t[/tex] is total cost:
UPS: [tex]t=7+0.20p[/tex]
FedEx: [tex]t=5+0.30p[/tex]
In order to solve a system of equations you must either a.) graph it, or b.) set them equal to each other.
If you graph it, the answer is where the two lines intersect.
If you set them equal to each other, solve it.
I will set them equal to each other in this:
[tex]7+0.20p=5+0.30p[/tex]
The first step in a problem like this, where there's the same variable on both sides, is to subtract the smaller variable from both sides. In this case, it is [tex]0.20x[/tex]. That would turn the equation into:
[tex]7=5+0.10p[/tex]
After that, you must solve it like a regular two-step equation.
Start by subtracting 5 from both sides:
[tex]2=0.10p[/tex]
Now, you must divide both sides by [tex]0.10[/tex].
[tex]\frac{2}{0.10}=\frac{0.10p}{0.10}[/tex]
That would give us:
[tex]20=p[/tex]
This means that in order for the prices to be the same, the package must be 20 pounds.
Now in order to find the total cost, you must plug 20 into one of the equations. It doesn't matter which, since they both equal the same. I will plug it into the FedEx equation:
[tex]t=5+0.30(20)[/tex]
Now you can just use a calculator and solve that or do it by hand. Multiply 0.30 by 20, to get 6, then add 5, which equals 11.
You should get: [tex]t=11[/tex].
This means that the total cost, when the costs are the same for both FedEx and UPS, is $11.
PLEASE HELP!!
Which graph shows a reflection of the rectangle across the horizontal dotted line?
Answer:
B
Step-by-step explanation:
The answer is B because if its being reflected its like symmetry horizontally
Sorry if this made no sense :c
Have a good day!
The correct option is Option D: The figure in Option D is reflection about the dotted horizontal line.
What is reflection?Reflection is the geometrical transformation of the figure about an axis, without changing the size and shape of the image in which every point is at same distance from the axis as in the reflected image.
Here the original image is in the 2nd quadrant.
the reflection axis is horizontal and situated in the 3rd and 4th quadrants.
So by reflecting about that axis without changing the size and shape of the image for which the distance of the original image from the axis will be equal to the distance of the reflected object from the axis.
As original image is in the 2nd quadrant the reflected will be drawn at the 3rd quadrant opposite to the original image.
Checking all the options only in Option B and option D have the reflected image at the 3rd quardant. But in Option B the reflected image is situated on the reflection axis which is against the rule of reflection.
Therefore The correct option is Option D: The figure in Option D is a reflection about the dotted horizontal line.
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How can you tell by just looking at the coefficients of -2x² and 2x2 that the terms will add to zero?
Answer:
Their coefficient have the same number but with opposite sign
Step-by-step explanation:
We can tell that the two coefficient will add to zero because they have the same value but opposite signs.
When two numbers are of the same value but with opposite sign, they add up to zero.
The given numbers are;
-2x² and 2x²
Coefficient is the number before the variable. Here, the variable is x,
-2x² = -2
2x² = 2
-2 + 2 = 0
Target hs apple watches on sale this week for $349 and you get an additional 5% off if you use our red card. Best buy sells them for $389 and you have a coupon for 15% off. How much money would you save by purchasing the watch from the store with the better buy?
Given :
Target have apple watches on sale this week for $349 and you get an additional 5% off if you use our red card. Best buy sells them for $389 and you have a coupon for 15% off.
To Find :
How much money would you save by purchasing the watch from the store with the better buy.
Solution :
Selling price at Target :
S.P = $( 349 - 349×0.05)
S.P = $331.55
Selling price at Best buy :
S.P = $( 389 - 389×0.15 )
S.P = $330.65
Amount of price saved = $( 331.55 - 330.65 ) = $0.9 .
Hence, this is the required solution.
Uh could you please help-
18 ft 27 ft 37 ft What is the area of this trapezoid? square feet
Answer:
832.5.
Step-by-step explanation:
sorry, but this cannot type fractions, so just take the answer.
Answer:
832.5
Step-by-step explanation:
To find the area of a trapezoid, you need to use the formula (a+b)/2 x h
a = 18 = base
b = 27 = base
h = 37 = height
18 + 27 = 45
45/2= 22.5
37 x 22.5 = 832.5
write a quadratic formula or expression for this:
The product of a certain whole number and four more than that number is 140, write a quadratic expression / formula and find the number.
Answer:
number is 10
Step-by-step explanation:
let n be the number, then 4 more than the number is n + 4, thus
n(n + 4) = 140 , that is
n² + 4n = 140 ( subtract 140 from both sides )
n² + 4n - 140 = 0
Consider the factors of the constant term (- 140) which sum to give the coefficient of the n- term (+ 4)
The factors are + 14 and - 10 , since
14 × - 10 = - 140 and 14 - 10 = + 4 , thus
(n + 14)(n - 10) = 0 ← in factored form
Equate each factor to zero and solve for n
n + 14 = 0 ⇒ n = - 14
n - 10 = 0 ⇒ n = 10
Since n is a whole number the the required number is 10
((8y-3x)/(4))/(4)-(-7+5x)/(3)
Let's simplify step-by-step
8y-3x/4/4 -(-7+5x/3)
Distribute:
=-3/16 x +1/2 y+-5/3 x+7/3
Combine like terms:
=-3/16x+1/2 y +-5/3x+7/3
=(-3/16x+-5/3x)+(1/2y)+(7/3)
=-89/48x +1/2y+7/3
Answer: -89/48x+1/2y+7/3
The product of -8 and -4 is -32.
True False
Answer:
False
Step-by-step explanation:
-8 · (-4) = 32
The two negatives cancel each other out so the answer is positive.
Hope I helped :)
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It takes Jada 1 1/2 to mow her lawn. It takes Kam half as long to mow his lawn. How long does it take Kam to mow his lawn?
Please help ASAP thank you
Step-by-step explanation:
1.) x + 37 + x + 67 + 90 = 180
combine like terms
2x +194 = 180
subtract 194 both sides
2x = -14
x = -7
2.) 63 + 86 = x
x = 149
Answer:
1. (x+37) + (x+67) + 90° = 180°
=> x + x + 37 + 67 + 90 = 180
=> 2x +194 = 180
=> 2x = 180 –194
=> 2x = –14
=> x = –14/2
=> x = –7
2. [The measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles. ]
x = 63° + 86°
=> x = 149°
HELP PLS. What information do you need to graph a linear function?
4-x/2=6 solve for x.
jkjhjk
I dont understand what to do here
Answer:
x=6?
Step-by-step explanation:
it is 90 degresses
