Question:
whats the surface area of this rectangle?
1cm 8cm 4cm
Answer:
13 cm
Help me this is due today!
Answer:
B
Step-by-step explanation:
According to your question B is answer
The inequality x ≤ 20 has 20 positive whole-number solutions. These solutions are the whole numbers from 1 to 20, inclusive.
In mathematics, a relation that makes a non-equal comparison between two numbers or other mathematical expressions is called an inequality. It is used to compare two numbers by their size on the number line most often. Following are several notations that are used to represent different types of inequalities:
a < b: a is less than b.
a > b: a is greater than b.
a ≤ b: a is less than or equal to b.
a ≥ b: a is greater than or equal to b.
a ≠ b: a is not equal to b.
Inequalities can be solved using similar methods as equations but with some additional rules. For example, when multiplying or dividing both sides of an inequality by a negative number, the direction of the inequality sign must be reversed.
According to the question, x is lesser than or equal to 20.
We have to only find the positive whole-number solutions.
Therefore, x values start from 1 and end at 20, including 1 and 20 both.
Thus, The inequality x ≤ 20 has 20 positive whole number solutions.
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I need help plsssssss
Answer:
y = 3/4 + 4
Step-by-step explanation:
Y Intercept = The number on the Y-Axis that the line crosses (Which is 4 on this question)
Slope = Rise/Run (Starting from the top of the line, count 3 down & 4 right to reach a whole number coordinate)
A click beetle abruptly releases elastic energy stored in its body to launch itself into the air. The function h(t)=−16t^2+8t represents the height h (in feet) of the click beetle t seconds after launching. The height of a second click beetle t seconds after launching is shown in the graph. Which click beetle went higher?
Answer:
The first click beetle went higher.
Step-by-step explanation:
The vertex is the minimum point of a parabola that opens upwards, or the maximum point of a parabola that opens downwards.
Since the height of each of the beetles at time, t seconds, is modelled as a parabola that opens downwards, the maximum height of each beetle is the y-value of the vertex.
First Click BeetleThe function representing the height, h, of the first beetle is:
[tex]h(t)=-16t^2+8t[/tex]
We could complete the square to rewrite the function in vertex form, however the quickest way to find the vertex of a quadratic function in the form ax² + bx + c is to use the formula for the x-value of the vertex:
[tex]\boxed{x_{\sf vertex}=-\dfrac{b}{2a}}[/tex]
Comparing ax² + bx + c with the given function:
a = -16b = 8c = 0Therefore, substituting the values of a and b into the formula, the x-value of the vertex of h(t) is:
[tex]x_{\sf vertex}=-\dfrac{8}{2(-16)}=0.25[/tex]
To find the y-value of the vertex, and thus the maximum height of the first beetle, simply substitute t = 0.25 into function h(t):
[tex]\begin{aligned}\implies h(0.25)&=-16(0.25)^2+8(0.25)\\&=-16(0.0625)+2\\&=-1+2\\&=1\end{aligned}[/tex]
Therefore, the maximum height of the first beetle is 1 foot.
Second Click BeetleFrom inspection of the given graph modelling the height of the second beetle, we can see that the maximum y-value is approximately 0.76 feet.
ConclusionAs the height of the second click beetle is less than the maximum height of the first click beetle, the first beetle went higher.
Which angles are complementary to AFB? Select all that apply.
Answer:
Step-by-step explanation:
/_BFC
Write an inequality and use substitution to solve the following problem:
A couple is remodeling a room in their house. They have already purchased carpet for the room for $2,000. If their budget is a maximum of $5,100, determine which of the following costs they can afford for a furniture set.
Check all that are true.
$7,100
$3,050
$3,400
$5,300
$5,100
Answer:7100
Step-by-step explanation:
Answer: the answer is 7100 your welcome!!!!!
Which figure can be formed by the net?
Option (D)
Step-by-step explanation:It is option (D) by the following reasons -
REASON 1 - The net has 4 sides.
So, Option (A) and (B) are canceled as they have 5 sides in the obtained figure.
REASON 2 - The net has two 8 inched sides and one 14 inched sides.
So, Option (C) is canceled as it has two 14 inched sides and one 8 inched side.
REASON 3 - The answer is Option (D)
As all the remaining options are canceled, the left over Option is only Option (D).
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A teacher put all her students' quiz scores up on the dot plot below. please help me
2k–14 ≤ 10
Pls helppp meee
Answer: k = 12
Step-by-step explanation:
2k–14 ≤ 10
1. Remove the 14 from the equation by adding it to the 10 (10 + 14)
2k ≤ 24
2. Get k to be by itself by dividing the 2 from 24
24/2 = 12
k = 12
HELP ME! please This needs to be done.
The expression that correctly shows the number sentence - the square of the sum of 6 plus b is greater than 10 - is option (a) - [tex](6+b)^{2} > 10[/tex]
A mathematical statement made up of a relational symbol (=, >, <, etc.) and of two expressions is called a number sentence is . An equation is a number sentence whose relational symbol is the equal sign.
The given number sentence is an example of mathematical expressions in one variable.
Here, the variable given is 'b'.
According to the question,
The sum of 6 plus b can be represented as = 6 + b
And, the square of the sum of 6 plus b can be represented as = [tex](6+b)^{2}[/tex]
This value is greater than 10.
This means, [tex](6+b)^{2} > 10[/tex]
All other expressions are wrong interpretations of the given number sentence.
The correct answer is option (a) - [tex](6+b)^{2} > 10[/tex]
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Each dozen donuts sell for $6.99. What is the difference, in dollars, between the total sales from the new box over 6 months this year and the total sales from the original box over 6 months last year?
Answer: The original box is 180 Inches², the new box is 330 inches²
Explore all similar answers
Step-by-step explanation:
*50 points* Geometry 7th grade
Please please PLEASE help
Answer:
D. Angles 2,4
Step-by-step explanation:
They are both adjacent, which makes the answer D. the correct answer.
Answer:
B
Step-by-step explanation:
Both have a common vertex and side (next to each other).
HURRRY! Keiko and Eric each randomly surveyed people with cell phones. They recorded peoples’ ages (a years) and how many texts they send per day on average (t texts). For their respective data, they each drew a line of best-fit and determined its equation. They then compared equations and made inferences based only on the equations they calculated.
Look at attachment.
Determine whether you agree or disagree, based only on the equations above, with
the inferences drawn below.
Keiko states that she has a higher rate of change than Eric. Agree or Disagree.
Agree
Disagree
Answer:
Step-by-step explanation:
Agree. Based on the equations above, Keiko's line has a steeper slope than Eric's line, indicating a higher rate of change in the number of texts per day with respect to age.
According to some estimates, our galaxy, the milky way contains about two hundred billion stars. Use digits to write that number of stars
Help pls!! It's just a question....
[tex]\frac{a^{2} +b^{2} }{2}[/tex] to [tex]\left \ {{a=-1} \atop {b=-2}} \right.[/tex]
The result is [tex]\frac{7}{2}[/tex] , but I want to know the calculation for this result.
The figure above is made from 1 cm cubes. What is the volume of the figure?
A.
54 cubic cm
B.
44 cubic cm
C.
48 cubic cm
D.
38 cubic cm
Please answer asap!!!
EXPANDING BRACKETS -
x(3x+2)
Answer:
[tex]3 {x}^{2} + 2x[/tex]
Step-by-step explanation:
Expanding brackets means multiplying every term inside the bracket by the term on the outside and then collecting like terms with the aim of removing the set of brackets
[tex]x(3x + 2) = 3 {x}^{2} + 2x[/tex]
3x² + 2x
Step-by-step explanation:Given equation, x(3x + 2)
= x(3x + 2)
Distributive property
= {(x * 3x) + (x * 2)}
= {(1 * x * 3 * x) + (1 * x * 1 * 2)}
Rearranging like terms
= {(1 * 3 * x * x) + (1 * 1 * 2 * x)
= [{(1 * 3) * (x * x)} + {(1 * 1 * 2) * x)}]
= {(3 * x²) + (2 * x)}
= (3x²) + (2x)
= 3x² + 2x
-88-5(-4)+110.3
help please
Answer:
42.3
Step-by-step explanation:
= -88-5*(-4)+110.3
= -88-5*-4+110.3
= -88--20+110.3
= -88+20+110.3
= -68+110.3
= 42.3
I hope this helps!
EXPANDING BRACKETS -
2x(5x-2)
Which angles are vertical to GBH? Select all that apply.
Using the data below, what conclusions could you NOT draw? Select all that apply.
The longer car will travel the fastest down the ramp
The car with more mass will travel the fastest down the ramp.
The car with the least mass will travel the fastest down the ramp.
Changing the ramp height will cause the car to travel faster.
Answer:
The longer car will travel the fastest down the ramp
The car with the least mass will travel the fastest down the ramp
Changing the ramp height will cause the car to travel faster
Step-by-step explanation:
The longer car will travel the fastest down the ramp
On the table, we are not told what effect a longer car would have on the time taken. We are only told about the mass of car, this means that this would be one of the conclusions you could not draw.
The car with the least mass will travel the fastest down the ramp
We can see on the table that the higher than mass of a car, the quicker the car takes to go down the ramp. This is as the time taken is shorter so it had taken less time. This opposes the statement we are given therefore it should be incorrect.
Changing the ramp height will cause the car to travel faster
On the table, there is not information regarding ramp height meaning that this statement would automatically be incorrect
Hope this helps, have a lovely day! :)
What does it mean if the slope of a ramp is -7/21 feet? Hint:( up, down, left, right )
Answer:
slope= -7/21
Go down by 7
go right by 21
Answer: slope= -7/21
Go down by 7
go right by 21
Step-by-step explanation: slope ratio means that for every two inches of rise, you would need one foot of ramp
Please answer the question
Please Help!!! I will give brainlist if right and explained!!!
Answer:
Net worth = Assets - Liabilities
Assets' total = $315,400
Liabilities' total = $153,300
Net worth = $162,100
What is an angle that is complementary to FGA?
Answer: Angle AGB
Step-by-step explanation: Complementary angles are two angles that in total their measures add up to 90 degrees.
We can see the opposite angle across FGB, CGB is a right angle so therefore it means FGB is a right angle.
Since we know FGB is a right angle, FGB + AGB = 90 degrees
Part B: Alex has 270 sugar cubes, like the one shown. He uses all the cubes to fill a box shaped like a larger rectangular prism. There are no gaps between the cubes.
Determine the volume, in cubic inches, of the box.
Step-by-step explanation:
For the rectangular prism, the volume is obtained as 51840 cubic inches.
What is volume?
Each thing in three dimensions takes up some space. The volume of this area is what is being measured. The space occupied within an object's borders in three dimensions is referred to as its volume. It is sometimes referred to as the object's capacity.
First, we need to find the total volume of the 240 cubes.
Since each cube has a side measuring 1/2 ft, the volume of each cube is (1/2 ft)³ = 1/8 cubic feet.
Therefore, the total volume of the 240 cubes is -
240 × (1/8) = 30 cubic feet
Next, we need to convert this volume to cubic inches.
Since 1 foot = 12 inches, 1 cubic foot = (12 inches)³ = 1728 cubic inches.
Therefore, the volume of the 240 cubes in cubic inches is -
30 × 1728 = 51840 cubic inches
Finally, we need to find the volume of the larger rectangular prism that contains all the cubes.
The volume will be the same as the volume of 240 cubes.
Therefore, the volume value is 51840 cubic inches
To learn more about volume from the given link
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#SPJ1
Solve with steps given
Answer:
34.54
Step-by-step explanation:
C = πd
C = 11 in * 3.14 = 34.54
Please Help!!! I will give brainlist if right and explained!!!
Mr. Lewis borrows $4,200 from his bank to buy a motorcycle. The loan has a 5% annual simple interest rate. If it takes Mr. Lewis three years to pay back the loan, what is the total amount he will be paying back?
(include the $ symbol)
Answer:
$4,200 + $4,200(.05)(3) = $4,830
Step-by-step explanation:
Principal = $4,200
Interest = $4,200(.05)(3) = $630
Total = $4,200 + $630 = $4,830
Please help!!!
Which angle number represents an angle adjacent to
Adjacent angles are those angles that are always placed next to each other in such a way that they share a common vertex and a common side but they do not overlap each other.
The properties of adjacent anglesAdjacent angles always share a common arm.They share a common vertex.They do not overlap.They have a non-common arm on both sides of the common arm.Two adjacent angles can be supplementary or complementary based on the sum of the measures of the individual angles.Here is a list of a few important notes related to the adjacent angles.When two angles are adjacent, then their sum is the angle formed by two non-common arms and one common arm.If a ray stands on a straight line, then the sum of adjacent angles formed is 180°.If the sum of two adjacent angles is 180° then they are called a linear pair of angles. All linear pairs are supplementary because supplementary angles sum up to 180°. However, all supplementary angles need not be linear pairs. To form a linear pair the lines need to intersect each other and must form adjacent angles.If the sum of two adjacent angles is 180° then the non-common arms form a line.
So the Adjacent Angle to ∠LSP is ∠PSM.
∠PSM number is 5
Learn more about Adjacent Angles
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A wedding photographer charges a $50 sitting fee plus $40 per hour (h).
write an exspression to represent the problem
please
Answer:
c = 40h + 50
Step-by-step explanation:
c = the amount charged for the wedding pictures.
h = the number of hours
Helping in the name of Jesus.
Step-by-step explanation:
c = 40h + 50
Step-by-step explanation:
c = the amount charged for the wedding pictures.
h = the number of hours
I need help on this.this is for homework help me please
Answer:Statistical,Both
Step-by-step explanation:
Its right trust !