The methods used to analyze data produced by scientific studies are called statistics. Option (c) is correct.
What are experiments and how do we analyze them using statistics?
Experiments are procedures or methods carried out under controlled conditions to discover a new fact or to test or establish a hypothesis that already exists.
From experiments we generate certain scientific data but to analyze data we need statistics.
Statistics is a process of collecting and analyzing and interpreting data.
Therefore the methods used to analyze data produced by scientific studies will be done by statistics.
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Answer:
Step-by-step explanation: Hello,
the answer
Find the range of the function y=1/2x+3 when the domian is {-2, 0, 2, 4}
The range of the function y=1/2x+3 when the domain is {-2, 0, 2, 4} is {-1 , 0.33 , 0.14 , 0.090}
The set of all attainable values that qualify as inputs to a operate thought because the domain of the operate, or it may also be outlined because the entire set of values attainable for freelance variables.The domain is outlined because the entire set of values attainable for freelance variables.The vary is found when work the attainable x- values to search out the y-values.The domain of a operate is that the set of values that we have a tendency to are allowed to plug into our operate. This set is that the x values in a very operate like f(x). The vary of a operate is that the set of values that the operate assumes. This set is that the worth that the operate shoots out when we have a tendency to plug Associate in Nursing x value in.We have given a function y = 1/2x+3 .....(1) and domain {-2, 0, 2, 4} .
In order to find the range putting x = -2 in equation (1) , we get
y=1/(2(-2)+3
y=1/-4+3
y=1/-1
y = -1
Putting x = 0 in equation (1) , we get
y=1/2(0)+3
y=1/0+3
y=1/3
y = 0.33
Putting x = 2 in equation (1) , we get
y=1/2(2)+3
y=1/4+3
y = 1 / 7
y = 0.14
Putting x = 4 in equation (1) , we get
y=1/2(4)+3
y=1/8+3
y= 1 / 11
y = 0.090
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Determine whether the vectors in each pair are normal to each other. (8,-4) and (-2,4)
Since their dot product is not equal to zero, then (8,-4) and (-2,4) are not normal to each other.
Two vectors are said to be normal or perpendicular to each other if the result of their dot product is equal to zero.
These two vectors are also called orthogonal to each other.
Let u = (u₁, u₂) and v = (v₁, v₂), then the dot product u . v is defined as:
u . v = u₁v₁ + u₂v₂
To check whether the vectors are normal to each other, let us check their dot product.
The given vectors are: (8,-4) and (-2,4)
Let u = (8,-4) and v = (-2,4), then,
u . v = 8 . (-2) + (-4) . 4
= -16 + (-16) = -32 (not equal to zero)
Since u.v ≠ 0, then (8,-4) and (-2,4) are not normal to each other.
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Find Victoria's debt to income ratio of her monthly expenses are 1280 and her monthly salary is 2 thousandand 500 express your answer in a decimal
Victoria's debt to income ratio is 0.51 when her monthly expenses are compared to her monthly salary
What is debt to income ratio?
The debt to income ratio compares the monthly expenses(monthly obligations) of Victoria to her monthly salary to determine the portion of her salary that would be used in paying her bills
debt to income ratio=monthly expenses/monthly salary
monthly expense=1280
monthly salary=2,500
debt to income ratio=1280/2,500
debt to income ratio=0.51
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Two sides of a triangle have lengths 5 and 12. Which inequalities represent the
possible lengths for the third side, x?
The inequality that represent the possible length of the third side is
7 < x < 17
According to the triangle inequality theorem, the sum of any two sides of a triangle must be greater than the measure of the third side of the triangle.
We have been given measure of two sides which are 5 and 12. Then the possible length for the third side has two condition
Let the third side be x unit.
First condition, x + 5 > 12
x > 7
Second condition, 12+ 5 > x
17 > x
Hence the inequality that represent the possible length of the third side is
7 < x < 17
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Which situation is represented by the inequality?
7x + 50 > 4x + 100
Responses
A Molly has $50 and Mary has $100. Molly saves $7 per week and Mary saves $4 per week. How long will it be before Molly has more money than Mary?Molly has $50 and Mary has $100. Molly saves $7 per week and Mary saves $4 per week. How long will it be before Molly has more money than Mary?
B Molly has $50 and Mary has $100. Molly saves $4 per week and Mary saves $7 per week. How long will it be before Molly has more money than Mary?Molly has $50 and Mary has $100. Molly saves $4 per week and Mary saves $7 per week. How long will it be before Molly has more money than Mary?
C Molly has $50 and Mary has $100. Molly saves $4 per week and Mary saves $7 per week. How long will it be before Molly and Mary have the same amount of money?Molly has $50 and Mary has $100. Molly saves $4 per week and Mary saves $7 per week. How long will it be before Molly and Mary have the same amount of money?
D Molly has $50 and Mary has $100. Molly saves $7 per week and Mary saves $4 per week. How long will it be before Molly and Mary have the same amount of money?Molly has $50 and Mary has $100. Molly saves $7 per week and Mary saves $4 per week. How long will it be before Molly and Mary have the same amount of money?
The situation which is represented by the inequality (7x + 50 > 4x + 100) is: A. Molly has $50 and Mary has $100. Molly saves $7 per week and Mary saves $4 per week. How long will it be before Molly has more money than Mary?
What is an inequality?An inequality can be defined as a mathematical relation that compares two (2) or more integers and variables in an equation based on any of the following arguments:
Less than (<).Greater than (>).Less than or equal to (≤).Greater than or equal to (≥).In this scenario, the number of week for saving money by each person is represented by the variable x. Therefore, the situation which is represented by the inequality (7x + 50 > 4x + 100) is that "Molly has $50 and Mary has $100. Molly saves $7 per week and Mary saves $4 per week. How long will it be before Molly has more money than Mary?"
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Solve each equation. 3ˣ=243
Answer:
[tex] {3}^{x} = 243 = {3}^{x} = {3}^{5} = 5[/tex]
Find the face of a rhombus with a circumference of 52 cm and a height of 1.2dm
The face of the rhombus ( length of one side) is found to be 13 cm.
How do you define a rhombus?A rhombus is a special parallelogram because it meets the definition of a parallelogram, which is a quadrilateral to two pairs of parallel sides.
Furthermore, a rhombus, such as a square, has every four sides that are equal. As a result, it is also identified as a slanted square.A rhombus has two diagonals that serve as its lines of symmetry.An axis of symmetry is a line that separates an object in to the two equal halves.Any two adjacent and otherwise consecutive angles add up to 180°.As per the given question;
The circumference of the rhombus is 52 cm.
Let us consider the one side of the rhombus is of length 'x'.
As, we known that the sides of the rhombus are equal.
Thus,
4x = 52
x = 52/4
x = 13.
Therefore, the face or the length of the one side of the rhombus is found as 13 cm.
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Which of the following shows the prime factorization of 200 using exponential notation?
02².52
0 23.5²
O8-25
O2-10²
The prime factorization of 200 using exponential notation is [tex]2^3 *5^2[/tex] that is correct option is (b)
First, we decompose the number given on statement by applying prime numbers in ascending order. We see that 200 is an even number, therefore, we infer that smallest prime number within is 2.
1) [tex]200\div2=100[/tex] (Even number)
2) [tex]100\div2=50[/tex](Even number)
3) [tex]50\div2=25[/tex](Even number)
4) [tex]25\div5=5[/tex](Odd number, not a multiple of 3, but a multiple of 5 since last digit is 5)
5) [tex]5\div5=1[/tex](Odd number, not a multiple of 3, but a multiple of 5 since last digit is 5)
Now, we construct the prime factorization using exponential notation:
[tex]200=2^3\cdot5^2[/tex]
The prime factorization of 200 using exponential notation is [tex]2^3\cdot5^2[/tex] that is option (b)
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The prime factorization of 200 using exponential notation is 2^3*5^2 that is correct option is (b)
First, we decompose the number given on statement by applying prime numbers in ascending order. We see that 200 is an even number, therefore, we infer that smallest prime number within is 2.
1) 200/2=100 (Even number)
2) 100/2=50 (Even number)
3)50/2=25 (Even number)
4) 25/5=5 (Odd number, not a multiple of 3, but a multiple of 5 since last digit is 5)
5) 5/5=1 (Odd number, not a multiple of 3, but a multiple of 5 since last digit is 5)
Now, we construct the prime factorization using exponential notation:
200=2^3*5^2
The prime factorization of 200 using exponential notation is 2^3*5^2 that is option (b)
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Dave accidentally overdrew his bank account. The bank will charge him for every day that his account remains overdrawn. This situation is represented by the expression: -10x - 75
What does the constant represent in this case?
the number of days he is overdrawn
the amount he is charged for being overdrawn each day
how much money he initially overdrew from his account
Answer:
the amount he is charged for being overdrawn each day
Step-by-step explanation:
For the following problem, match the name of the number property that was used to get to each step from the previous step.
37 • 2 • (-5 + + 5)
1. 37 • 2 • (-5 + 5 + )
inverse property of multiplication
2. 37 • 2 • (0 + )
inverse property of addition
3. 37 • 2 •
commutative property
4. 37 • 1
identity property of multiplication
5. 37
identity property of addition
37 • 2 • (0 + 1/2 ) - Inverse property of addition
37 • 2 • 1/2 - Commutative property of addition
37 • 1 - Inverse property of multiplication.
37 - Identity property of multiplication.
What is an algebraic equation?Algebraic expressions include at least one variable and at least one operation addition, subtraction, multiplication or division.
We have,
37 • 2 • (-5+ 5+ 1/2)
= 37 • 2 • (0 + 1/2 ) -Inverse property of addition
The inverse property of addition states that:
a + (-a ) = 0 where a ∈ R
= 37 • 2 • 1/2 - Commutative property/Identity property of addition
The commutative property of real numbers states that:
a + b = b + a where a,b ∈ R
= 37 • 1 - Inverse property of multiplication.
The inverse property of real numbers states that:
a + 1/a = 1 where a ∈ R
= 37 - Identity property of multiplication.
The identity property of multiplication of real numbers states that:
a x 1 = a where a ∈ R
Thus,
37 • 2 • (0 + 1/2 ) - Inverse property of addition
37 • 2 • 1/2 - Commutative property of addition
37 • 1 - Inverse property of multiplication.
37 - Identity property of multiplication.
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The complete question is:
For the following problem, match the name of the number property that was used to get to each step from the previous step.
37 • 2 • (-5+ 5+ 1/2)
37 • 2 • (0 + 1/2 )
37 • 2 • 1/2
37 • 1
37
identity property of addition
commutative property
inverse property of multiplication
inverse property of addition
identity property of multiplication
Factor the expression. 3 x²+11 x-4
The required factor for the given expression is (x + 4)(3x - 1).
In mathematics, factorization or factoring refers to the process of composing a number or other mathematical object from numerous factors, usually smaller or simpler counterparts.
The given expression is 3x² + 11x - 4.
To factor a general quadratic expression of the form ax² + bx +c, we need to consider the product "ac" and find two factors for this number such that their sum is equal to b. during this case, a = 3, b = 11, and c = -4..
Therefore we need to consider the product ac = 3 × (-4) = -12.
Consider the 2 factors 12 and -1 for the product -12.
Then we have the sum is equal to 12 + (-1) = 12 - 1 = 11.
Therefore the expression 3x² + 11x - 4= 3x² + 12x + (-1)x -4= 3x² +12x - x - 4= 3x(x + 4) - (x + 4)= (x + 4)(3x - 1)
Therefore, the required factor for the given expression is (x + 4)(3x - 1).
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SOMEONE HELP MEEEEEE
find the next four terms of the geometric sequence given the a1=2x r=x³
Answer: [tex]2\text{x}^4, \ 2\text{x}^7, \ 2\text{x}^{10}, \ 2\text{x}^{13}[/tex]
===========================================================
Explanation:
The first term is [tex]a_1 = 2\text{x}[/tex] and the common ratio is [tex]r = \text{x}^3[/tex]
To get the second term, we multiply the first term by that common ratio
[tex]a_2 = a_1*r = 2\text{x}*\text{x}^3 = 2\text{x}^4[/tex]
Repeat a similar idea for the third term
[tex]a_3 = a_2*r = 2\text{x}^4*\text{x}^3 = 2\text{x}^{4+3} = 2\text{x}^7[/tex]
and the fourth term is
[tex]a_4 = a_3*r = 2\text{x}^7*\text{x}^3 = 2\text{x}^{7+3} = 2\text{x}^{10}[/tex]
The fifth term is
[tex]a_5 = a_4*r = 2\text{x}^{10}*\text{x}^3 = 2\text{x}^{10+3} = 2\text{x}^{13}[/tex]
Something to notice: The exponents of the first five terms are: 1, 4, 7, 10, 13. The sequence of exponents is arithmetic even though the original underlying sequence is geometric.
The reason why the exponent sequence is arithmetic is because we keep multiplying by [tex]\text{x}^3[/tex], and hence we keep adding 3 to each exponent to get the next exponent.
-----------------------------------------
To summarize, the first five terms are:
[tex]2\text{x}, \ 2\text{x}^4, \ 2\text{x}^7, \ 2\text{x}^{10}, \ 2\text{x}^{13}[/tex]
We will ignore the first term 2x since your teacher wanted you to find the next four terms after that first term (i.e. term2 through term5).
find the value of asquare + b square
a-b=7 , ab=8
Answer:
Step-by-step explanation:
As we know that a-b=7 and ab=8(a times b is equal to 8) If we find the factors of 8 we know that 8 times 1 make 8 and if u try 8-1= 7 so 1 squared is 1 and 8 squared is 16 so 16+1=17
Answer:
A = 8
B = 1
A squared + B squared = 65
Step-by-step explanation:
8 - 1 = 7
A - B = 7
8 x 1 = 8
A x B = 8
8 x 8 = 64
1 x 1 = 1
64 + 1 = 65
A squared + B squared = 65
Two parallel lines are cut by a transversal as shown below.
Suppose m2 = 97°. Find m5 and m<8
Answer: m<8=97 degrees.
m<5=83 degrees
Step-by-step explanation:
m<8=m<2 ==> Angles 8 and 2 are alternate interior angles, meaning that they're equal.
m<8=97 degrees.
m<8+m<5=180 degrees ==> Both angles 8 and 5 add up to a straight line, and straight lines measure 180 degrees and are called straight angles.
97+m<5=180
97-97+m<5=180-97
m<5=83 degrees
− 3 g + 2 f + g − 4 f
Answer:
-2g-2f
Step-by-step explanation:
Hope it helps you
Answer: -2g-2f
Step-by-step explanation: Combine like terms
-3g+2f+g-4f
-2g-2f
Please can u tell me what the answer to this is please
Answer:
Below in bold.
Step-by-step explanation:
(√5)² * (√3)²
= 5 * 3
= 15
(∛9))³ (√30)²
= 9 * 30
= 270
Solve the following system of equations. Show all work and solutions.
y = 2x- + 6x + 4
y = -4x- + 4
The system of the equation has x = 0.
The two equations are,
y = 2x + 6x + 4
y = -4x + 4
Now equating the equation, we have
2x + 6x + 4 = -4x + 4
8x + 4 = -4x + 4
12x = 0
x = 0
Therefore the system of the equation has x = 0.
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A contractor purchases 6 dozen pairs of padded work gloves for $89.28 . He incorrectly calculates the unit price at $14.88 per pair for the expense report. What is the correct unit price? Why is the contractor's unit price incorrect?
The correct unit price is $1.24 per pair of padded gloves such that the contractor's unit price is incorrect because total cost was divided by number of dozens bought instead of the number of units in 6 dozens
How many units are in a dozen?
The dozen of pairs of padded gloves contains 6 pairs of padded gloves, in other words, the number of units in 6 dozens is 6 dozens multiplied by 12 units in a dozen
number of units in 6 dozens=6*12
number of units in 6 dozens=72
unit price=total cost/number of units in 6 dozens
unit price=$89.28/72
unit price=$1.24
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Sam has three times as many crayons as Thabo. If he gives Thabo 17 crayons he will have twice as many crayons as Thabo. How many crayons did Thabo have to start with?
Answer:
Thabo had 51 crayons at the start.
Step-by-step explanation:
Sam has three times as many crayons as Thabo. Then
x = 3y.
If Sam gives 17 crayons to Thabo, then he will have twice as many crayons as Thabo. Then
(x-17) = 2(y+17).
Thabo had 51 crayons to start with.
Given that Sam has three times more crayons than Thabo does. He will have twice as many crayons as Thabo if he gives him 17 of them.
We need to determine the number of crayons Thabo had in starting.
Let's use algebra to solve this problem step-by-step.
Let's assume that Thabo starts with "x" crayons.
According to the given information:
Sam has three times as many crayons as Thabo, which means Sam has 3x crayons.
If Sam gives Thabo 17 crayons, he will have (3x - 17) crayons left.
Thabo will have (x + 17) crayons after receiving the 17 crayons from Sam.
Now, the second condition states that if Sam gives Thabo 17 crayons, he will have twice as many crayons as Thabo.
Mathematically, it can be expressed as:
2(x + 17) = 3x - 17
Let's solve this equation to find the value of x:
2x + 34 = 3x - 17
Subtract 2x from both sides:
34 = x - 17
Now, add 17 to both sides:
x = 51
So, Thabo had 51 crayons to start with.
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Can someone help me really quick
Answer:
(3 3/4) : (3/4) = 5/1 = 5
Step-by-step explanation:
01.07 Operations with Scientific Notation
CCSS.Math.Content.8.EE.A.4
Perform operations with numbers expressed in scientific notation, including problems where both decimal and scientific notation are used. Use scientific notation and choose units of appropriate size for measurements of very large or very small quantities (e.g., use millimeters per year for seafloor spreading). Interpret scientific notation that has been generated by technology.
A number that can be expressed in scientific notation will be (2 × 10³) × 4 × 10².
What is scientific notation?Numbers that are either too large or too little to be conveniently stated in decimal form can be expressed using scientific notation. It may also be referred to as standard form, scientific form, or standard index form.
Always set the base to 10. The exponent must be an integer that is non-zero, therefore it can either be positive or negative. The coefficient's absolute value is more than or equal to 1, but it must be less than 10.
It should be noted that the number that can be expressed in scientific notation will be (2 × 10³) × 4 × 10². This will be:
= (2 × 10³) × (4 × 10²)
= 8 × 10^5.
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Zalaria
5. For each pair of shapes, decide whether or not Shape A is congruent to Shape B.
Explain your reasoning.
a. First pair:
Answer: Shape A is congruent to Shape B because If you were to rotate one of the two and flip it, it would match.
Step-by-step explanation:
hope it helps :)
Which value is NOT defined?
(A) tan 0
(B) tan π
(C) tan 3π/2
(D) 1 / tanπ/4
Answer:
(C) tan 3pi/2
Step-by-step explanation:
See image. You can use the Unit Circle to help you find these answers. The Unit Circle looks like scary math chaos pizza, but it really is just a great big giant answer key. It has all the trig answers on it.
(If you use your calculator instead be sure to change it to radian mode.)
See image.
Tangent for any angle is the y/x.
Only tan 3pi/2 is undefined.
At 3pi/2 the x and y are (0,1) so tangent is 1/0 which is undefined.
Center = (6,15)
Radius = 2
The equation of the circle where the given parameters are Center = (6, 15) and Radius = 2 is (x - 6)^2 + (y - 15)^2 = 4
How to determine the equation of the circle?The given parameters are
Center = (6, 15)
Radius = 2
Rewrite the above parameters properly as
Center, (h, k) = (6, 15)
Radius, r = 2
The equation of the circle is represented as
(x - h)^2 + (y - k)^2 = r^2
Substitute the known values in the above equation
So, we have
(x - 6)^2 + (y - 15)^2 = 2^2
Evaluate the exponent of 2
So, we have
(x - 6)^2 + (y - 15)^2 = 4
Hence, the equation of the circle where the given parameters are Center = (6, 15) and Radius = 2 is (x - 6)^2 + (y - 15)^2 = 4
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Complete question
Write an equation of the circle with Center = (6,15) and Radius = 2
solve the equation 5(2x+1)=25
Answer: x = 2
Step-by-step explanation:
Answer:
x = 2
Step-by-step explanation:
Given equation,
→ 5(2x + 1) = 25
Solving for the value of x,
→ 5(2x + 1) = 25
→ 10x + 5 = 25
→ 10x = 25 - 5
→ x = 20/10
→ [ x = 2 ]
Hence, the value of x is 2.
what is 9871 rounded to the nearest ten?
Answer:9870
Step-by-step explanation:
Answer:
Step-by-step explanation:
So we have our 9871
For rounding when a number is four and below if I am remembering correctly you drop the number down. If 5 and up you bump it up to the next number in front of it.
9871
7 = tens
7 > 5
9881
What is 0.2÷5.3?
Please help me
Answer:
0.03773584905
or 0.04
Step-by-step explanation: if this was not what you were looking for,
How many different real solutions are there for the equation 4 x²=-4 x-4 ?
There are 0 or no real solutions for the equation 4x²=-4x-4.
What, exactly, is an equation?A mathematical statement composed of two representations joined by an equal sign is known as an equation.3x - 5 = 16 is an example of an equation.We obtain the value for the variable x as x = 7 after solving this equation.So,
Given the equation: 4x²=-4x-4
Then,
4x²=-4x-44x²+4x+44x²+x( + )=44x²+x(2+2)+44x²+2x+2x+42x(2x+1)+2(x+2)No factor for this equation.
Therefore, there are 0 or no real solutions for the equation 4x²=-4x-4.
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Identify the range of the function shown in the graph. what’s the answer?
Answer:
(- 1 , 1 )
Step-by-step explanation: