Answers
Answer:D
Step-by-step explanation:Hope that helped
Related Questions
Find the value of a^2+b when a=-2and b=5
Answers
Answer:
9
Step-by-step explanation:
Just substitute -2 in for a and 5 in for b
[tex]a^2 + b\\-2^2 + 5\\4 + 5\\9[/tex]
Whenever you square a negative number the result is positive
Answer:
The answer is 9 or 3squared
Step-by-step explanation:
Swap the -2 in for a and 5 in for b
When ever a negative number is squared the answer will be a postive number.
What is (f⁰f)(3) ?
(F) 1 (G) 5 (H) 21 (I) 77
Answers
The value of (fof)(3) is 21.
When two or more functions are combined to form a new function, the new function is known as a composite function. For example- if there is a function f(x), then fof(x) is a composite function formed by repeating f(x) twice.
Here, we are given a function- f(x) = x + 9
if we put the value of x = 3, we get-f(3) = 3 + 9f(3) = 12
now, we need to find the value of (fof)(3)
This can also be written as- {f(f(3)}
we know that f(3) = 12
⇒ {f(f(3)} = f(12)
f(12) = 12 + 9f
(12) = 21
Thus, the value of (fof)(3) is 21.
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Your question was incomplete. Check for full content below-
f(x) = x + 9
What is (fof)(3)?
(F) 1 (G) 5 (H) 21 (I) 77
Write each equation in logarithmic form. 5⁴=625
Answers
The logarithmic form of the given equation (5⁴=625)is = log₅(625) = 4.
logarithmic exponential form:Logarithmic functions are the inverses of exponential functions. So a log is an exponent! y=logbx if and only if by=x for every x>0 and 0b1.
Why we employ logarithms?Logarithms depict changes in terms or multiplication: in the instances above, each step is 10x larger. Each step on the natural log is "e" (2.71828...) times longer. When dealing with a sequence of multiplications, logarithms let us "count" them in the same way that addition counts on our behalf when effects are added.
According to the given data:using the property of log:
5⁴=625
Apply logarithmic definition: aⁿ = b gives logₐᵇ = n
so,
a = 5
b = 625
n = 4
equation would be as follows:
log₅(625) = 4
The logarithmic form of the given equation (5⁴=625)is = log₅(625) = 4
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Answer: [tex]log_{5} 625 = 4[/tex]
Step-by-step explanation:
P(x)=x2+5x-3 findthe following:
b) p (2)=
Answers
Answer:
if x=2
P(2) = (2)² + 5(2) -3
= 4 + 10 - 3
= 14 - 3
= 11
Please help me with this assignment.
Answers
Answer:D
Step-by-step explanation: 3 over 9 = .333 repeating which is greater then .22 and lower then 33
-15.7 and 2.6 are
both greater than
-18
Answers
The question is in the picture
Answers
Check out the attached photo
A family plans to have 3 children. For each birth, assume that the probability of a boy is the same as the probability of a girl. What is the probability that they will have at least one boy and at least one girl?.
Answers
Answer:
0.75
Step-by-step explanation:
The outcomes are equally likely, so the easiest way to work this problem is to write out the 8 outcomes in this sample space. In two outcomes the gender of all three children is the same (GGG, BBB). The other 6 outcomes contain at least one boy and one girl.
*Please mark brainliest
aisha has a collection of 180 coins. how many coins represent 10% of her collection?
divide/scale down to solve for the missing percent.
Answers
In percentage, the 10% of her collection is a 18 coins.
According to the statement
We have to find that the 10% of her collection.
So, For this purpose, we know that the
A percentage is a number or ratio expressed as a fraction of 100.
From the given information:
Aisha has a collection of 180 coins. how many coins represent 10% of her collection
Then
The percentage of the collections of the 180 coins = 10% of 180 coins
Then
Collection of the coins = 10% of 180
Collection of the coins = 10/100*180
Collection of the coins = 0.1*180
Collection of the coins = 18.
So, In percentage, the 10% of her collection is a 18.
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I need some help TwT
2.64 + -0.2 + -0.35 + 0.625=?
Answers
Answer: 2.715
Step-by-step explanation:
Answer:
2.715
Step-by-step explanation:
We have 2.64 - 0.2 - 0.35 + 0.625.
2.64 - 0.2 = 2.44
2.44 - 0.35 + 0.625
Next, we subtract 0.35 from 2.44
2.09 + 0.625 = 2.715
Use the Change of Base Formula to rewrite each expression using common logarithms.
log₇8
Answers
The stated logarithm equation log₇8 in changed by the Base Formula is logₓ8 - logₓ 7.
What is termed as logarithmic?A logarithmic notation is one where variable x contains a logarithm.
The variable in an exponential equation is depicted by an exponent. To solve exponential equations, first see if both sides of the formula could be written as powers of the same number. If you can't, consider taking the common logarithm of both equation sides and solve the problem using property.
Quotient Rule: ㏒(A/B) = ㏒A - ㏒BProduct Rule : ㏒A + ㏒B = ㏒(AB)Power Rule: n㏒A = ㏒AⁿBase Rule = ㏒ₐb = ㏒ₓb/㏒ₓaNow, as per the stated conditions;
The given equation is; log₇8
Apply the Base Rule and re-write the equation;
= logₓ8 / logₓ 7
This obtained equation can also be written on the form by applying product rule.
= logₓ8 - logₓ 7
Therefore, the logarithm equation log₇8 in expressed by the Base Formula is logₓ8 - logₓ 7.
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The equation y=6.72(1.014) x models the world population y , in billions of people, x years after the year 2000 . Find the year in which the world population is about 8 billion.
Answers
the population will reach 8 billion by 2012 ,as calculated by properties of logarithm.
What is Logarithm?The opposite of exponentiation is the logarithm.This indicates that the exponent to which a fixed number, base b, must be raised in order to obtain a specific number x, is represented by the logarithm of that number.A number's natural logarithm is its logarithm to the base of the transcendental and irrational number e, which is roughly equivalent to 2.718281828459.Given:
y = 6.72 ( [tex]1.014^x[/tex]), wherey = population in billionsx = time in yearsTo find: Year when population is 8 billion, i.e., y = 8.
Finding:
8 = 6.72 ( [tex]1.014^x[/tex])
=> [tex]\frac{8}{6.72}= ( 1.014^x)[/tex]
Taking log on both sides
=> [tex]log(\frac{8}{6.72})= log( 1.014^x)[/tex]
=> log(1.19) = x (log 1.014) (as [tex]log_b(a)^m = m (log_b(a))[/tex] )
=> [tex]\frac{log(1.19)}{log (1.014)}[/tex] = x
=> x = [tex]\frac{0.0755}{0.006}[/tex]
=> x = 12.58
Hence, the population will reach 8 billion by 2012 ,as calculated by properties of logarithm.
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What is an equation of the line that passes through the point (8,-2) and is perpendicular to the line 4x+3y=3
Answers
Answer:
y = 3/4x - 8
Step-by-step explanation:
The equation says x - 0.8 divided by 1.2 = 6 This is a multi step with decimals find the x equation
Answers
The value of x in the equation (x – 0.8) / 1.2 = 6 is 8.
Given,
The equation = (x – 0.8) / 1.2 = 6
We have to expand this equation and find x.
That is,
(x – 0.8) / 1.2 = 6
Multiply 1.2 both sides.
(x – 0.8) x (1.2) / 1.2 = 6 x 1.2
(x – 0.8) = 6 x 1.2
(x – 0.8) = 7.2
Shift 0.8 to right hand side
Then we get,
x = 7.2 + 0.8
x = 8
Therefore, the value of x in the equation (x – 0.8) / 1.2 = 6 is 8.
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Pleasee helppppp! I will mark BRAINLIEST!!
The mass of a paperclip is 9.0 × 10−4 mg. If a box of paperclips has 6.14 × 104 paperclips, determine the total mass of the paperclips in the box. Write the final answer in scientific notation with the correct number of significant digits. 2.86 × 100 mg 5 × 101 mg 5.5 × 101 mg 5.526 × 101 mg
Answers
The total mass of the box of paperclips in scientific notation is 5.526 × 10¹ miligrams. (Correct choice: D)
What is the mass of a box of paperclips in scientific notation?
In this question we must use, interpret and manipulate numbers in scientific notation to find the total mass of the paperclips in a box. The statement indicates the mass of a paperclip and the number of paperclips in the box, then the total mass of the box of paperclips is equal to the product of mass of the paperclip and the number of paperclips. Then, the total mass in the box is:
m = (9.0 × 10⁻⁴ mg) · (6.14 × 10⁴)
m = (9.0 · 6.14) · (10⁻⁴ · 10⁴)
m = 55.26 · 10⁰
m = 55.26 mg
m = 5.526 × 10¹ mg
The total mass of the box of paperclips in scientific notation is 5.526 × 10¹ miligrams. (Correct choice: D)
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Simplify each radical expression. Use absolute value symbols when needed. √9x⁴/ 36
Answers
The value of the given expression √9x⁴/ 36 in simplified form is x² / 2.
By canceling it with its common factors, we must create this expression in its most basic form.So, we have to make this expression √ 9x⁴ / 36 in its lowest form by cancelling it with its common factors.√ 9x⁴ / 36
Take 9 from this since the common factor is 9.= √ 9 x⁴ / 9*4
= √ x⁴ / 4
We must now rewrite it as follows:4 = 2*2 = ( 2 )² and x⁴ = x² * x² = ( x² )²
As a result, the square root of x⁴ is x².Moreover, 2 is the square root of 4.hence, √ x⁴ / 4 = ( x² / 2 )²
Taking positive real numbers as a given, words are extracted from the radical.√ x⁴ / 4 = x² / 2
Therefore, the value of the given expression √9x⁴/ 36 in simplified form is x² / 2
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An arithmetic sequence has first term 4 and constant difference 20.
Answers
The fifth term of the arithmetic sequence is 84
How to determine the valueThe formula for determining the nth term of an arithmetic sequence is expressed as;
Tn = a + (n -1)d
Where;
a is the first termn is the number of termsd is the common differenceTo determine the fifth term, we have to substitute the value of nas 5, we have;
T5 = 4 + (5-1) 20
T5 = 4 + 4(20)
expand the bracket
T5 = 4 + 80
T5 = 84
Thus, the fifth term of the arithmetic sequence is 84
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The complete question;
An arithmetic sequence has first term 4 and constant difference 20. Find the fifth term of the sequence
1. Which fraction is greater? a. 5/2 b. 9/4 please help me
Answers
Answer: 5/2
Step-by-step explanation:
5/2 is greater because divided it’s 2.4 and 9/4 is 2.25. 2.5 > 2.25.
02.05 MC)
The functions f(x) = −x + 3 and g(x) are shown in the graph. The function g(x) is a transformation of f(x), such that g(x) = kf(x), where k is a rational number.
Graph of linear function f of x going through negative 1 comma 4, 0 comma 3, and 1 comma 2 and linear function g of x going through negative 1 comma 8, 0 comma 6, and 1 comma 4. The functions intersect at 3 comma 0.
Which of the following statements describes the effect and value of k?
a
The graph of g(x) is a vertical stretch of the graph of f(x); the k value is positive and greater than 1.
b
The graph of g(x) is a vertical compression of the graph of f(x); the k value is positive and less than 1.
c
The graph of g(x) is a vertical stretch of the graph of f(x); the k value is positive and less than 1.
d
The graph of g(x) is a vertical compression of the graph of f(x); the k value is positive and greater than 1.
Answers
The statements that describes the effect and value of k in the functions f(x) = −x + 3 and g(x) as shown in the graph where function g(x) is a transformation of f(x), such that g(x) = kf(x) and k is a rational number, is
a. The graph of g(x) is a vertical stretch of the graph of f(x); the k value is positive and greater than 1.
What is vertical stretch?A vertical stretch refers to a movement in the upward direction. A transformation that leads to a vertical stretch is as a result of multiplying by a positive number that is above or greater than 1.
The given graphs f(x) was factored and this lead to a vertical stretch to produce g(x), and the factor that leads to vertical stretch is a positive number greater that 1. Hence we say that The graph of g(x) is a vertical stretch of the graph of f(x); the k value is positive and greater than 1.
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If 6x = 1/216 what is the value of x
Answers
Answer:
The answer is in the attached screenshot (I wanted to show properly formatted fractions)
Explanation:
The explanation is in the attached screenshot (I wanted to show a properly formatted fraction)
How is 14,398 written in scientific notation?
Answers
The given number written in scientific notation is 1.4398 × 10⁴
From the question, we are to write the given number in scientific notation.
The given number is 14,398.
A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10.
Thus,
To write the numbers in scientific notation, we will express the number as the multiplication of a number between 1 and 10 and a power of 10.
A number between 1 and 10 that can easily be formed from the number is 1.4398
Then, we can write that
14,398 = 1.4398 × 10⁴
Hence, the given number written in scientific notation is 1.4398 × 10⁴
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What's the distance between 3/4 and 1/8 on a number line?
Answers
Answer:
5/8
Step-by-step explanation:
3/4 = 6/8. so 6/8-1/8= 5/8. 5/8 is the answer.
If f(-2)=3x+2 and g(4)=x^2-x find each value
Answers
Answer:
a) -3
b)12
Step-by-step explanation:
For f(X)= 3x+2
Where x=-2(Substitute for x in the expression)
F(-2)=3(-2)+2
= -6+2
= -3
G(4)=
[tex]x^{2} -x\\4^{2} -4\\=16-4\\=12[/tex]
The diagonals of parallelogram LMNO intersect at point P. If MP = 2x + 5 and OP = 3x − 7, what is MP?
29
12
1
−2
Answers
The measure of the segment MP is 29 units.
In this question we have been given a parallelogram LMNO
The diagonals of parallelogram LMNO intersect at point P.
The diagonals of parallelogram LMNO are LN and MO.
The point P divides each diagonal into exactly two equal parts.
So, MP = OP
If MP = 2x + 5 and OP = 3x − 7, we need to find MP.
As, MP = OP
2x + 5 = 3x − 7
2x - 3x = -7 - 5
-x = -12
x = 12
So, the value of the MP would be,
MP = 2x + 5
= 2(12) + 5
= 24 + 5
= 29
Therefore, the measure of the segment MP is 29 units.
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a diagram of a bookcase in an instruction booklet uses a scale of 1:30 if the diagram is 7.8 cm tall 5.4 wide and 1 cm deep what are the actual dimensions of the bookcase
Answers
The actual dimensions of the bookcase is 234 cm tall, 162 cm wide and 30 cm deep
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
The scale of 1:30 is used to produce a diagram of a bookcase in an instruction booklet.
If the diagram is 7.8 cm tall 5.4 wide and 1 cm deep, hence:
Height of bookcase = 7.8 cm * 30 = 234 cm
Width of bookcase = 5.4 cm * 30 = 162 cm
Depth of bookcase = 1 cm * 30 = 30 cm
The actual dimensions of the bookcase is 234 cm tall, 162 cm wide and 30 cm deep
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Darren is purchasing a car that costs $12,000. He is taking out a simple interest loan at an annual rate of 3%. If he makes monthly payments over a period of 3 years, how much is his monthly payment?
$363.33
$349.12
$333.33
$296.13
Answers
Based on the cost of the car and the simple interest loan amount, the amount of Darren's monthly payment is $363.33
What is the monthly payment?First, find the simple interest on the loan:
= 12,000 x 3% x 3 years
= $1,080
The total amount to be repaid:
= 1,080 + 12,000
= $13,080
The monthly payment is:
= 13,080 / (12 x 3 years)
= $363.33
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Answer: its 363.33
Step-by-step explanation:
Which variable is discrete? length of jacket length of jacket weight of jacket weight of jacket number of pockets inside jacket number of pockets inside jacket size of jacket pocket in square inches size of jacket pocket in square inches
Answers
Discrete variables are Number of pockets inside the jacket .
A variable whose value is determined by counting is referred to as a discrete variable. examples: the number of students in attendance. how many red marbles are in the jar. number of heads when three coins are flipped. The number of students, kids, the shoe size, and so forth are some typical examples of discrete data. Height, weight, length, time, temperature, age, and other continuous data are typical examples. Discrete data are represented by integer and ordinal data values. Continuous Variable. "Discrete variables" are variables that have a finite number of possible values. Each and every qualitative variable is discrete. Certain quantitative variables, like performance ratings of 1, 2, 3, 4, or 5, or temperature rounded to the nearest degree, are discrete.
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What is a algebraic expression of a number 5 time a number
Answers
he scale factor of △RST to △DEC is 3 ∶ 13. What is the scale factor of △DEC to △RST?
Answers
The scale factor of △DEC to △RST is 13 : 3.
The ratio of the scale of an original thing to a new object that is a representation of it but of a different size is known as a scale factor (bigger or smaller). For instance, we can increase the size of a rectangle with sides of 2 cm and 4 cm by multiplying each side by, let's say, 2.
A multiplicative inverse or reciprocal for a number y, denoted by 1/y or y⁻¹, is a number that when multiplied by x yields the multiplicative identity, 1. The multiplicative inverse of a fraction b/a is a/b.
The scale factor of △RST to △DEC is 3 : 13.
Now, △DEC to △RST is the inverse of △RST to △DEC
Therefore,
[tex]\frac{\Delta RST}{\Delta DEC} = \frac{3}{13}[/tex]
[tex]\frac{\Delta DEC}{\Delta RST} =\frac{13}{3}[/tex]
Hence, the scale factor of △DEC to △RST is 13 : 3.
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Students at a middle school take an elective during the last hour of the school day. There are 11 students who take an art class. There are 3 times as many students who take a music class as students who take an art class. What is a ratio that relates the number of students who take a music class to the number of students who take an art class.
Answers
The ratio that relates the number of students who take a music class to the number of students who take an art class is 3 : 1 .
A ratio is defined as a comparison of two sets of the same unit, showing how much of one set is contained in the other. A common form to express the relationship between two quantities, such as 'a' and 'b', is a:b, read as 'a follows b'.Let the number of students taking arts class be "x"
and number of students taking music class be "y".
It is given that 11 students take an art class which can be given by
x = 11 ...(1)
There are 3 times as many students who take a music class as students who take an art class which can be given by
y = 3x = 3(11) = 33 ....(2)
On dividing equation (1) by (3) , we get
x/y = 11/33 = 1/3
This can be written as x : y = 1 : 3 but here we are asked about the ratio of music class to the art class then ratio is given by y : x = 3 : 1
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