Answer:
14t²+42t
Step-by-step explanation:
So you're basically going to use distributive property.
(2t+6)+7t is the same as, (2t)7t + 6(7t).
2t(7t)= 14t² and 6(7t)= 42t.
Combine the two answers and you get 14t²+42t.
14t²+42t is the simplest form you can get to.
Estimate 38 x 9= ___
Answer:
400
Step-by-step explanation:
The most accurate estimate among the given options is d) 400.
Given that we need to estimate the product of 38 x 9,
To find the product of 38 and 9, you can simply multiply the two numbers together:
38 x 9 = 342
Therefore, the actual product of 38 and 9 is 342.
Now, let's estimate the product using the given options:
a) 30: This is too low of an estimate. 38 is larger than 30, so the product should be greater than 30.
b) 50: This is also too low of an estimate. 38 multiplied by 9 is significantly larger than 50.
c) 120: This estimate is closer to the actual product, but still not accurate. 120 is smaller than the actual product of 342.
d) 400: This is a close estimate. 38 multiplied by 9 is close to 400.
In summary, the most accurate estimate among the given options is d) 400.
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The equations represent the heights, y, of the flowers, in inches, after x days. Which ordered pair (1,2.2)(1 ,2.5) or (0 ,1) is a solution to the system? Will the flowers ever be the same height? Explain. The 2 equations are y= 1.5x+1 and y= 1.2x+1
Since both of the flower will be y = 1 at x = 0, yes, the flowers will be the same height at x = 0. And (0,1) is the solution to the system of equation
How to Know Solution to a System of EquationTo know the solution of a system of equation, the two equation can be solved simultaneously.
Given the 2 equations y = 1.5x + 1 and y = 1.2x + 1
Equate the two equations to get x
1.5x + 1 = 1.2x + 1
collect the like terms
1.5x - 1.2x = 1 - 1
0.3x = 0
x = 0
Substitute x in any of the equation.
y = 1.5(0) + 1
y = 1
Yes! The flower will be of the same height at x = 0.
Therefore, (0,1) is the solution to the system of equation. And the flower will be of the same height at x = 0.
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Sasha performs an experiment. She chooses one marble from each of three sacks. The first sack has black (B) and white (W) marbles. The
second sack has green (G) and yellow () marbles. The third sack has silver (S) and red (R) marbles.
Which tree diagram shows all the possible outcomes for this experiment?
Ос.
OB
OD
Answer:
Option D is correct
Step-by-step explanation:
From the question, we have:
[tex]Sack\ 1: B, W[/tex]
[tex]Sack\ 2: G, Y[/tex]
[tex]Sack\ 3: S, R[/tex]
Required
The tree diagram
The selection process is as follows:
[tex]Sack\ 1: B, W[/tex]
[tex]Sack\ 1\ and\ Sack\ 2: B (G,Y); W(G,Y)[/tex] -- i.e. we write sack 2 as a subset of 1
[tex]Sack\ 1, 2\ and\ 3: B (G(S,R),Y(S,R)); W(G(S,R),Y(S,R))[/tex] -- i.e. we write sack 3 as a subset of 2
The only tree diagram that illustrates this is: option D
Find the values of a, b and c in the given pair of similar triangles. Answer it with solution, please. Thank you.
Answer:
a = 28, b = 12, c = 9
Step-by-step explanation:
The ratio of corresponding sides between the triangles is 4 to 7, or 4/7 (comparing small triangle to the large one).
Set up proportions.
[tex]\frac{16}{a}=\frac{4}{7}\\\\4a=112\\\\a=28[/tex]
Next, find b.
[tex]\frac{b}{21}=\frac{4}{7}\\\\7b=84\\\\b=12[/tex]
Finally,
[tex]c=21-b=21-12=9[/tex]
Becky says that line c and d are parallel
what must true for Becky to be correct
Answer:
c) m <2 =m <3
Step-by-step explanation:
since the angles 2 and 3 are equal then they should be alternate angles
then c and d are parallel lines
How do you write coordinates for translation?
Coordinates (x ,y ) of the given geometrical figure after translation is written as ( x + h , y + k ) where h ∈ R and k ∈ R.
As given in the question,
Let us consider the coordinates of any geometrical figure is represented by ( x, y ) in the coordinate plane.
Translation is the representation of transformation the change in the location of the given geometrical figure without change in the shape and size.
It can be translated in four ways :
Translation to the right is written as ( x + h , y )
Translation to the left is ( x - h, y)
Translation in the up is ( x, y + k )
Translation in the down is ( x , y - k ).
Therefore, the original coordinate ( x ,y ) after translation written as
( x + h , y + k ) where h ∈ R and k ∈ R.
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Kayden has 50 m of railing.
How much more railing does Kayden need
so that he can put railing all the way around
the roof garden?
12 m
3 m
7m
10 m
20 m
10 m
Not drawn accurately
Answer: Kayden needs 12 more meters of railing.
Step-by-step explanation:
To find the perimeter of the roof garden I added up all the numbers you listed (12m+3m+7m+10m+20m+10m) to get a total perimeter of 62 meters.
Since Kayden already has 50 meters of railing we can subtract that from the total he needs to get the remaining amount needed.
62m - 50m = 12 meters of railing remaining.
An item on ale cot 20% of the original price if the original price wa $95 what i the ale price
By using formula and solving we get the item is on sale for $76.
What is selling price?
The selling price is the amount of money that a seller asks for in exchange for a product or service. It is also known as the "list price" or "retail price" and it is the price at which an item is intended to be sold. Selling price is usually set by the manufacturer or the retailer, taking into account the cost of production, distribution, and marketing, as well as competition and market demand. The selling price is usually higher than the cost of production, which includes the cost of the materials, labor, and overhead expenses.
What is the formula to calculate selling price?The formula to calculate the selling price of a product or service depends on the information available and the desired level of accuracy. However, there are a few common formulas used to calculate the selling price based on different factors.
Cost-plus pricing formula: This formula calculates the selling price by adding a markup percentage to the cost of the product or service.
The formula is: Selling price = Cost + (Cost x Markup percentage)
If the original price of an item was $95 and it is now on sale for 20% off, we can calculate the sale price using the following formula:
Sale price = Original price x (1 - Discount percentage)
In this case, the discount percentage is 20%, so we can express it as 0.2. Therefore, the formula becomes:
Sale price = $95 x (1 - 0.2)
To calculate the sale price, we need to multiply the original price by (1 - 0.2) which is (1-0.2) = 0.8
Sale price = $95 x 0.8
Sale price = $76
So, the item is on sale for $76.
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Select the correct answer from each drop-down menu. A picture frame with an area of 60 square inches has a width, w, and a height that is 4 inches greater than the width. Write an equation to represent the area, and solve to find the width. Equation: Of the two solutions, only a width of inches makes sense in the context of the problem. Reset Next
The width of the picture frame with the given area would be = 3.9in
What is a frame?A frame is a structure that can be a rectangle or a square shape which is used to display a picture.
The area of the frame = 60in²
The width of the frame = x
The height of the frame = 4x
The area of a rectangle = length×width
That is ; 60 = X × 4x
60 = 4x²
make X the subject of formula;
X = √60/4
X = √15
X = 3.9 in.
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Please help!!! Will give brainliest!!!
Find the Dy/Dx of y=7/x using first principle
By using first principle, the value of Dy/Dx is,
⇒ Dy/Dx = - 7 / x²
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We have to given that;
The expression is,
⇒ y = 7 / x
Now, Differentiate the function with respect to x, we get;
⇒ y = 7 / x
⇒ Dy/ Dx = D / Dx (7 / x)
= 7 D/Dx (1/x)
= 7 (- 1 × x⁻¹⁻¹ )
= 7 (- x⁻²)
= - 7 / x²
⇒ Dy/Dx = - 7 / x²
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The two polygons are similar. Find the Scale Factor between the
figures.
Answer:
x=9.2
Step-by-step explanation:
23/x=17.5/7
cross multiply
17.5x=161
divide
x=9.2
3. Wite the 4th number in the pattern Rule: Add 11 starting at 34
which values are solutions for the intequality 5< y-8
Answer:
y > 13
Step-by-step explanation:
Inequality graph:
Answer:
y>13
Step-by-step explanation:
5<y-8
5+8<(y-8)+8
13< y-8+8
13<y
y>13
What are the different types of time complexity analysis available?
There are five different types of Time complexity analysis:
Constant Time ComplexityLogarithmic Time Complexity Linear Time Complexity O(n log n) Time ComplexityQuadratic Time ComplexityWhat is Time complexity?
The computational complexity that describes the amount of computer time required to run an algorithm is known as time complexity in computer science. The time complexity of an algorithm is commonly estimated by counting the number of elementary operations performed by the algorithm, assuming that each elementary operation takes a fixed amount of time to perform.
As a result, the time required and the number of elementary operations performed by the algorithm are assumed to be proportional. Because the running time of an algorithm varies among different inputs of the same size, the worst-case time complexity, which is the maximum amount of time required for inputs of a given size, is commonly considered.
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is equal to 1,024. Evaluate the following expressions.
a. 46
b. 44
43.42
Answer:
What is equal to 1,024
Step-by-step explanation:
What is the volume of the sphere rounded to the nearest whole number if the radius is 3.63 inches?
Answer: 200inches³
Step-by-step explanation:
The volume of a sphere can be gotten by using the formula:
V = 4/3 πr³
where,
π = 3.142
r = radius = 3.63 inches
Volume = 4/3πr³
= 4/3 × 3.142 × 3.63³
= 4/3 × 3.142 × 47.832147
= 200.38481
= 200inches³
If tan 0= -21/20 what is cos 0 in quadrant 2
Find the area of a circle with a radius of 70 centimetres
Answer:
15393.8cm sorry if im wrong
Calculate the difference between the two times.
alarm clock number 1
8: 15 am. or pm
alarm clock number 2
3: 30 am or pm.
Answer:
5:30 is the difference between the clocks
Which of the following statements are true??
Answer:
A, D
Step-by-step explanation:
Consider the series What is the truncation error for S3?
A=15
0 0.002
0 0.008
0.992
O 0.998
Help please im being timed
Answer:
Answer is B
0.008
Step-by-step explanation:
What is the GCF of 20x^76 and 8x^92
The GCF of the given expressions is 4x⁷⁶
What is the greatest common factor?The greatest common factor, abbreviated as GCF, of two numbers is the largest number that is a factor of, or divides evenly into, both of the numbers. When two numbers are relatively small, we have a quick and simple way to calculate their greatest common factor. We do this by listing all of the factors of each number, and then identifying the largest number that is in both lists.
Given here, The expressions 20x⁷⁶ and 8x⁹² and GCF(20,8)=4
and x⁷⁶ is a factor of 8x⁹²
∴ GCF(20x⁷⁶ , 8x⁹²) =4x⁷⁶
Hence, The GCF of the given expressions is 4x⁷⁶
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Jeremy feeds his cats the same amount every day after 4 days he has feed his cat 12 cups of food how many cups would he feed his cats in 9 days
Answer:
27
Step-by-step explanation:
12/4 = 3
3 x 9 = 27
Use the distributed property to simplify the expression 6(x+4)+1
Answer:
6x + 25
Step-by-step explanation:
6(x + 4) + 1
6x + 24 + 1
6x + 25
Answer:
6x + 25
Step-by-step explanation:
Multiply each x and 4 (inside parentheses) by 6, and then add 1 to the resulting sum:
6x + 24 + 1
Combining like terms, we get:
6x + 25
18 is 15% of what number
Answer:
120
Step-by-step explanation:
Use the algebra tiles to model x – 2.
Then choose the answer that describes the correct tiles.
one blue x tile and two orange + tiles
one orange x tile and two blue – tiles
one blue x tile and two blue – tiles
one orange x tile and two orange + tiles
Sorry for being late but the answer is B
Answer:
B
Step-by-step explanation: e d g 20 22
A street sign is 14 inches long. A scale drawing of the sign is 5 inches long. What is the scale factor
Answer:
5/14
Step-by-step explanation:
A street sign is 14 inches long. A scale drawing of the sign is 5 inches long. What is the scale factor
Scale factor is calculated as:
Scale drawing/Street sign
= 5 inches/14 inches
= 5/14
Therefore, the scale factor 5/14
In the past year omar watched 39 movies that he thought were very good he watched 60 movies over the whole year of the movies he watched what percentage did he rate as very good
Answer:
65%
Step-by-step explanation:
39/60 X 100
(39 being the number of movies he rated very good, divided by the total number of movies he watched which is 60)
Need help ASAP!! Plz
Answer:
Rate of change = -5/6 & Initial value = 5
Step-by-step explanation:
Rate of change = rise/run = -5/6
Initial value = y -intercept = 6