2.4645×10⁴ gallons of milk do United States dairy cows produce each year.
Why we need scientific notation ?We need scientific notation reason is large number can be written in compact form.
According to the given question There are approximately 9.3 x 106 dairy cows in the United States.
Which is 985.8 cows in the united states.
Also given each cow produces 2.5×10 = 25 gallons of milk per year.
∴ United state cows will produce (985.8×25) gallons of milk each year which is = 24645 gallons of milk per year.
Now 24645 can be represented as 2.4645×10⁴ gallons of milk.
We have raised it to the 4th power of 10 because we have moved the decimal 4 digits before to balance the number and we know that in scientific notation base should be greater than 1 and less than 4 so moving the decimal to some other place is not valid.
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the quotient of y and 27
y ÷ 27
27 ÷ y
y ÷ 27 + y
y × 27
im literally so confused pls explain how you got the answer bc someone told me and means multiplication and math but apparently it doesnt so
It should be noted that the quotient of y and 27 will be y ÷ 27. The correct option is A.
How to illustrate the information?It should be noted that quotient simply means the quantity that's produced when two numbers are divided. A quotient in mathematics is the amount created by dividing two numbers. The term "quotient" is used frequently in mathematics and is sometimes known as the integer portion of a division, a fraction, or a ratio. The quotient is the result of dividing two numbers by each other. As in the case of 8 4 = 2, when the division produced the number 2, the outcome is the quotient. The dividend is 8, while the divisor is 4.
When we divide a number, the result we ultimately get is the quotient. The mathematical symbol (÷ ) denotes division, a technique for allocating items equally among groups.
In their case, the quotient of y and 27 simply means the division of the numbers. This will be y ÷ 27.
Therefore, the correct option is A.
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Evelyn is getting older and feels like she should donate her collection of stuffed animals to children who are less fortunate. She has 18 stuffed cats and 12 stuffed dogs, which she wants to divide into identical groups, with no stuffed animals left over. What is the greatest number of groups Evelyn can place her stuffed animals into?
The greatest number of groups Evelyn can place her stuffed animals into
= 6 Groups.
We have been given that
Evelyn should donate her collection of stuffed animals in which
No. of stuffed cats = 18
No. of stuffed dogs = 12.
We have to find out number of groups with no stuffed animals left over.
for solving this question we can use GCF
What is GCF (Greatest Common Factor)?
The greatest common factor (GCF) of a set of numbers is the largest factor that all the numbers share.
How can we find GCF?
The greatest common factor is the greatest factor that divides both numbers. To find the greatest common factor, first list the prime factors of each number.
18 and 12 share one 2 and one 3 in common. We multiply them to get the GCF, so 2 * 3 = 6 is the GCF of 18 and 12.
The common factors of 12 and 18 are 1, 2, 3 and 6. The greatest common factor of them is 6.
In each groups no. of cats and dogs are (3cats , 2 dogs)
Hence , 6 is the greatest number of groups Evelyn can place her stuffed animals into.
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Two numbers are given below.
34,856
39,670
a) Approximate the sum of these numbers
by first rounding each number to the
nearest hundred.
b) Find the exact sum of these numbers,
then round this value to the nearest
hundred.
a) The approximate sum of the numbers by first rounding each number is 74,600
b) The exact sum of the numbers rounded to the nearest hundred is 74,500
From the question, we are determine the approximate sum of the given numbers
The given numbers are
34,856 and 39,670
a) Round 34,856 to the nearest hundred
34,856 to the nearest hundred is 34,900
Also,
Round 39,670 to the nearest hundred
39,670 to the nearest hundred is 39,700
Now,
Add the rounded numbers
34,900 + 39,700 = 74,600
b) The exact sum of the numbers is
34,856 + 39,670 = 74,526
Rounding the result to the nearest hundred
74,526 rounded to the nearest hundred is 74,500
Hence, the exact sum of the numbers rounded to the nearest hundred is 74,500
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What is the Domain, Range, and Function?
Step-by-step explanation:
domain = (0,2)
range=(4,-4)
funcion =quadratic
Bob has a window that is 114 square feet. The window is in the shape of a square. Which of the following expresses the length of one of the sides of the window? A 1142 B √57 C √114 D√111 E 1143 answer as soon as possible :)
The expression of the length of one of the sides of the window is √114
What are areas?The area of a shape is the amount of space on the shape
Which of the following expresses the length of one of the sides of the window?The area of the window is given as
Area = 114 square feet
The shape of the window is a square
The area of a square is calculated as
Area = Length^2
So, we have
114 = Length^2
Take the square root of both sides
Length = √114
Hence, the expression of the length of one of the sides of the window is √114
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Trapezoid WXYZ has vertices at W(–5, –1), X(–3, –1), Y(–2, 1), and Z(–6, 1). Trapezoid WXYZ is translated so that the coordinates of Y' are (0, 3). What will be the coordinates for W′?
Solution :
the coordinates for W′ = (-1,3)
Trapezoid :
A trapezoid is necessarily a convex quadrilateral in Euclidean geometry. The parallel sides are called the bases of the trapezoid. The other two sides are called the legs (or the lateral sides) if they are not parallel; otherwise, the trapezoid is a parallelogram, and there are two pairs of bases). A scalene trapezoid is a trapezoid with no sides of equal measure
Y = (-2,1)
Y' = (0,3)
Unit shift for Y to Y'
By distance formula :
yy' = [tex]\sqrt{{(x2-x1})^{2} +( y2-y1)^{2} }\\[/tex]
= root of (2)^2 +(2^2)
= root of 4+4
Root of 16
= root of 4
Unit shift for Y to Y' = 4
then
w = (-5,-1)
shift by adding 4
W' = (-5+4, -1+4)
W' = (-1,3)
the coordinates for W′ = (-1,3)
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If x is a binomial random variable with n = 20 and p = 0.25, the expected value of x is:_________
The expected value with a sample size of 20 and a probability of 0.25 will be 5.
What is the expected value?The anticipated value is an extension of the weighting factor in statistical inference. Informally, the anticipated value is the simple average of a significant number of outcomes of a randomly selected variable that was separately chosen.
The expected value is given below.
E(x) = np
Where n is the number of samples and p is the probability.
If x is a binomial random variable with n = 20 and p = 0.25. Then the expected value is given below.
E(x) = 20 x 0.25
E(x) = 5
The expected value with n = 20 and p = 0.25 will be 5.
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Solve please and thanks
Answer: (10, 8)
Step-by-step explanation:
To solve a substitution question, you have to make sure either x or y is alone on the other side of equal sign.
-x + y = -2
^^^this becomes y = -2 + x
Now, since you know what "y" is, you simply replace "y" with our new equation in the other equation.
-x - 2(-2+x) = -26
Then, you do order of operations to get the answer.
First, do distributive property.
-x + 4 - 2x = -26
Next, solve the equation.
-3x + 4 = -26
-3x = -30
x = 10
Since you found what "x" is, you substitute "x" and in one of your equations to find "y", it doesn't matter which one.
-(10) + y = -2
-10 + y = -2
y = 8
Finally, after you got "x" which is 10, and "y" which is 8, you put them in an ordered pair (x, y) which is (10, 8).
P.S. I use Sora and Deltamath too!
<, >, or =
-3.625 ___ -3.62
Answer:
-3.625 < -3.62
Step-by-step explanation:
If 8x+7y=6 is a true equation, what would be the value of 5+8x+7y?
If the equation 8x+7y=6 is a true equation, then the value of the equation 5+8x+7y is 11
What are linear equations?Linear equations are equations that have constant average rates of change. Note that the constant average rates of change can also be regarded as the slope or the gradient
How to determine the value of the equation?The equation is given as
8x + 7y = 6
The above equation is said to be true
The next step is to add 5 to both sides of the equation 8x + 7y = 6
So, we have
5 + 8x + 7y = 6 + 5
Evaluate the sum of the like terms
So, we have
5 + 8x + 7y = 11
Hence, if the equation 8x+7y=6 is a true equation, then the value of the equation 5+8x+7y is 11
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2 nm = _____ cm
WHAT IS THE FORMULA I CANT --
2nm = 2e-7 cm or written out 0.0000002 cm
To convert nm to cm, you have to divide the value by 1e+7 (10000000).
here are the first two terms of some different arithmetic sequences
The best there terms of the sequence will be:
a. 10, 16
b. 211, 311
c. 10 , 12.5
d. -13, -22
How to illustrate the information?It should be noted that in an arithmetic sequence, there is a constant difference, which is the difference between a term and the previous term.
We find the constant difference for each sequence, and we add it to the second term to find the third term. Then we add the constant difference to the third term to find the fourth term.
a. 4 - (-2) = 6
3rd term: 4 + 6 = 10
4th term: 10 + 6 = 16
b. 111 - 11 = 100
3rd term: 111 + 100 = 211
4th term: 211 + 100 = 311
c. 7.5 - 5 = 2.5
3rd term: 7.5 + 2.5 = 10
4th term: 10 + 2.5 = 12.5
d. -4 - 5 = -9
3rd term: -4 + (-9) = -13
4th term: -13 + (-9) = -22
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Here are the first two terms of some different arithmetic sequences:
a. -2,4
b. 11, 111
C. 5, 7.5
d. 5,-4
What are the next three terms of each sequence?
Given f(x)=2x²+4, find the value of f(−1)
Answer:6
Step-by-step explanation:
when x is -1 y is 6. input -1 as x in the equation and solve, otherwise graph.
If m<2=9x+7 and m<3 = 5x + 5, what is m<1?
The value of m<1 is 65 degrees
How to determine the angleFrom the diagram shown, we have that;
m<2=9x+7 m<3 = 5x + 5It is important to note that angles on a straight line sum up to 180 degrees
Also, corresponding angles are equal
Then, we have that;
m<2 + m<3 = 180°
Substitute the values
9x + 7 + 5x + 5 = 180
collect like terms
14x = 180 - 12
14x = 168
Make 'x' the subject
x = 168/ 14
x = 12
We have that;
m<3 = 5x + 5 = 5(12) + 5 = 60 + 5 = 65
But m<3 = m<1
m<1 = 65
Thus, the value of m<1 is 65 degrees
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According to the empirical rule, ________ will be within two standard deviations of the mean.
According to the empirical rule, 95% will be within two standard deviations of the mean.
The empirical rule, also referred to as the three-sigma rule or 68-95-99.7 rule, is a statistical rule which states that for a normal distribution, almost all observed data will fall within three standard deviations (denoted by σ) of the mean or average (denoted by µ).
Under this rule, 68% of the data falls within one standard deviation, 95% percent within two standard deviations, and 99.7% within three standard deviations from the mean. Three-sigma limits that follow the empirical rule are used to set the upper and lower control limits in statistical quality control charts and in risk analysis such as VaR.
The empirical rule is used often in statistics for forecasting final outcomes. After calculating the standard deviation and before collecting exact data, this rule can be used as a rough estimate of the outcome of the impending data to be collected and analyzed.
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Solve
please show all steps
Answer:
10m + 100 = 15m
20 movies
Step-by-step explanation:
Hello!
Let the number of movies watched be m.
The equation for the first movie club would be 10m + 100, as you pay 10 dollars per movie (10*m) and you add the original membership fee (100).
The equation for the second movie club is 15m, 15 dollars per movie. Set the equations equal to each other and solve for m, the number of movies, so the price would be equal.
Solve for m10m + 100 = 15m 100 = 5m (subtract 10m)20 = m (Divide by 5)Therefore, you would need to watch 20 movies in each movie club for the total price to be equal.
calculate the area of ABC and the area of ABDE for each of these diagrams
Step-by-step explanation:
ED || AB
E is the midpoint of AC.
therefore, D is the midpoint of BC, and AB is 2×ED.
but also the height of ABC is 2×height of EDC.
now, we know, the area of a triangle is
baseline × height / 2
area EDC = baseline × height / 2 = 18 cm²
area ABC = 2×baseline × 2×height /2 =
= 4 × (baseline × height / 2) =
= 4 × area EDC = 4 × 18 = 72 cm²
the area of ABDE = area ABC - area EDC =
= 72 - 18 = 54 cm²
Marcelo plays a carnival game six times he spent three tokens to play each game and he won 7 tokens each game write two different expressions that can be used to find the total profit in tokens that Marcelo made
The expressions that can be used to find the total profit in tokens that Marcelo made is (7 × 6) - (3 × 7) and 42 - 21.
How to illustrate the information?From the information, Marcelo plays a carnival game six times he spent three tokens to play each game and he won 7 tokens each game.
The appropriate expression will be:
= (7 × 6) - (3 × 7)
= 42 - 21
= 21
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Write and solve an inequality to find the possible values of x. (Please answer ASAP)
The inequality is: 14.2 + 14.2 + x < 51.3
x < 22.9
How to Solve an Inequality?We are given the following:
Perimeter of the triangle < 51.3 in.
The sides are 14.2 in., x in., and 14.2 in.
Therefore, we would have the following inequality:
14.2 + 14.2 + x < 51.3
Solve for x
28.4 + x < 51.3
x < 51.3 - 28.4
x < 22.9
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Plane H contains four points. Points A, C, and D form a diagonal line on the left. Point B is to the right of point C.
Which points are coplanar and noncollinear?
points A and D
points C and D
points A, C, and D
points A, B, and D
Answer:
Points A B D
Step-by-step explanation:
I am assuming in the plane, all the points are inside. For it to be non- collinear, I am pretty sure there has to be points not on the line. In this Case, only A C D are actually on a line. Since B is to the right of C, I don't think that will make a good line. So that is the answer I am going with.
Answer:
d)a ,b,d
Step-by-step explanation:
For each pair of functions, find f(g(x)) and g(f(x)) .
f(x)=x+3, g(x)=x-5
A composite function exists as a function that depends on another function. The value of f(g(x)) = x-8 and g(f(x)) = x-2.
What is meant by composition function?In mathematics, function composition exists as an operation ∘ that takes two functions f and g, and has a function h = g ∘ f such that h(x) = g. In this operation, the function g exists used to the result of applying the function f to x.
Function composition is a mathematical procedure where two functions, f, and g, are taken and a function, h = g ∘ f, is produced such that h(x) = g(f(x)). The function g exists used in this operation on the outcome of applying the function f to x.
Let the two functions be f(x) = x+3 and g(x) = x-5
f(g(x)) = f(x-5)
simplifying the above equation, we get
f(x-5) = x-5+3
f(g(x)) = x-8
g(f(x)) = g(x+3)
simplifying th above equation, we get
g(x+3) = x+3-5
g(x+3) = x-2
Therefore, the value of f(g(x)) = x-8 and g(f(x)) = x-2.
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what is greatest common denominator of 72 and 159)
Answer:
3
Step-by-step explanation:
The greatest common divisor (GCD) of two nonzero integers a and b is the greatest positive integer d such that d is a divisor of both a and b (Wikipedia)
To find out which is the GCD of 72 and 159, keep factoring both until they cannot be factored any more
Then take the factors common to both list of factors; the greatest among them is the GCD
The factors of 72 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
The factors of 159 are: 1, 3, 53, 159
The common factors are 1, 3
So GCD is 3
How can you express 5 1/3 + -7 2/3 as the sum of its integer and fractional parts
The sum of its integer and fractional parts is 5 + (-7) + 1/3 + 2/3. Option D
What are fractions?Fractions are defined as part of a whole.
The types of fractions include:
Mixed fractionsProper fractionsImproper fractionsSimple fractionsComplex fractionsGiven the expression;
5 1/3 + -7 2/3
The integers are:
5 and -7
The fractions are;
1/3 and 2/3
The sum of the integers and fractional parts are;
5 + (-7) + 1/3 + 2/3
Thus, the sum of its integer and fractional parts is 5 + (-7) + 1/3 + 2/3. Option D
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Three cars are shown below, along with
their original prices.
The price of each car is then rounded to
the nearest £100.
a) Work out which car's price changes the
most.
b) By how much does this car's price
change?
Car X
£13,420
MATHS X
Car Y
£17,590
MATHS Y
Car Z
£12,860
MATHS Z
In linear equation , the car y's price changes the most.
What are a definition and an example of a linear equation?
A linear equation with one variable is one that contains just one variable. It has the formula Ax + B = 0, with A and B being any two real numbers and x being an ambiguous variable with only one possible value. One such linear equation in one variable is 9x + 78 = 18.According to the question
a) Car x : £ 10320 ≈ £ 10300 10320 - 10300 = 20
Car y : £ 15430 ≈ £ 15400 15430 - 15400 = 30
Car z : £ 17490 ≈ £ 17500 17490 - 17500 = 10
10 < 20 < 30
so the car y's price changes the most.
b) this car's price change £ 30
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Choose the definition for the function.
(-x+ 2
a. y = x + 1
(-x+ 2
b. y = x + 1
{
x < 1
x ≥ 1
x ≤1
x> 1
S-x+ 2
x+1
c. y = {
(-x+ 2
d. y = x + 1
x > 1
x ≤ 1
x ≥ 1
x < 1
Enter
Answer:
can you add a photo of the questions? So it's easier to see
Order the numbers from smallest to largest:
\large \mid4\mid,\sqrt{9},-3,\mid-5\mid,-3^2,2^3
Reorder answers
1.
\large -3
Reorder answers
2.
\large -3^2
Reorder answers
3.
\large \sqrt{9}
Reorder answers
4.
\large \mid4\mid
Reorder answers
5.
\large \mid-5\mid
Reorder answers
6.
\large 2^3
The rational numbers ordered from smallest to largest are given as follows:
-3², -3, sqrt(3), 4, 5, 2³.
What are rational numbers?Rational numbers are numbers that can be represented by fractions, such as integers and terminating or repeating decimals.
They are ordered as follows:
negative infinity, ..., -5, ..., -3, ..., 0, ..., 3, ..., 5, ..., positive infinity.
That is, large negative are the smallest, and large positives are the greatest.
For this problem, the numbers are given as follows:
4.sqrt(9) = 3.-3.5.-3² = -9(as it is not inside the parenthesis, only 3 is squared and the negative sign stays).2³ = 8.Hence the ordering, from least to greatest, of the numbers is given as follows:
-3², -3, sqrt(3), 4, 5, 2³.
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Marianna represented several percents as portions of 100 in the pictures below.
A 10 by 10 block of 100 where 8 columns of 10 are shaded.
A 10 by 10 block of 100 where the first row, and 2 and a half squares of the second row are shaded.
A 10 by 10 block of 100 where 1 row of 10 is shaded.
A.Write the percent represented in each picture.
B.Write the portion represented in each picture as a fraction in at least two different ways.
A) The percentage represented in each picture is as follows:
A-1) 80%
A-2) 12.5%
A-3) 10%
B) The portion represented in each picture is written as a fraction as follows:
B-1) 80% = 8/10 or 4/5
B-2) 12.5% = 1.25/10 or 1/8
B-3) 10 = 1/10 or 2/20
What is a percentage?A percentage is a fraction of 100.
A percentage is also a ratio, showing how much of the whole is contained by the portion.
Percentages are written with the percentage sign (%).
Data and Calculations:A-1) 80% for A 10 by 10 block of 100 where 8 columns of 10 are shaded.
A-2) 12.5% for A 10 by 10 block of 100 where the first row, and 2 and a half squares of the second row are shaded.
A-3) 10% for A 10 by 10 block of 100 where 1 row of 10 is shaded.
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Write each expression in simplest form. 5+√3 / 2-√3
The simplest form of the expression [tex]\frac{5+\sqrt{3} }{2-\sqrt{3} }[/tex] is [tex]13+7\sqrt{3}[/tex].
The simplest form of a fraction is one with a reasonably prime denominator and numerator. It indicates that, except for 1, there is no common factor between the fraction's numerator (upper portion or top) and denominator (lower part or bottom).
In elementary algebra, the procedure of rationalization is performed to get rid of the irrational number in the denominator. There are several methods for rationalizing the denominator.
An expression comprises a variable, a number, or a combination of a number, a variable, and operation symbols. An equation is created by joining two expressions with an equal sign.
Consider the expression,
[tex]\frac{5+\sqrt{3} }{2-\sqrt{3} }[/tex]
Rationalizing the denominator,
[tex]\frac{5+\sqrt{3} }{2-\sqrt{3} } = \frac{5+\sqrt{3} }{2-\sqrt{3} } \times \frac{2+\sqrt{3} }{2+\sqrt{3}}[/tex]
[tex]\frac{5+\sqrt{3}}{2-\sqrt{3}} =\frac{(5+\sqrt{3})(2+\sqrt{3})}{(2-\sqrt{3})(2+\sqrt{3})}[/tex]
Using the identity,
( a + b )( a - b ) = a² - b²
Therefore,
[tex]\frac{5+\sqrt{3}}{2-\sqrt{3}} =\frac{5 \times 2 + 5 \times \sqrt{3} + \sqrt{3} \times 2 + (\sqrt{3} )^{2}}{(2)^{2}-(\sqrt{3} )^{2}}[/tex]
[tex]\frac{5+\sqrt{3}}{2-\sqrt{3}} = \frac{10+7\sqrt{3}+3}{4-3}[/tex]
[tex]\frac{5+\sqrt{3}}{2-\sqrt{3}} = \frac{13+7\sqrt{3}}{1}[/tex]
[tex]\frac{5+\sqrt{3}}{2-\sqrt{3}} = 13+7\sqrt{3}[/tex]
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Simplify each number. 32¹.²
The result of simplifying the number 32¹.² using the exponent rules is 1024
To solve this exercise we have to resolve algebraic operations following the exponent rules.
Note the power of a power rule that indicates that: the exponent result will be the multiplication of these exponents, we have:
(32¹)²
32⁽¹*²⁾ =
32² =
32 * 32 =
1024
What is an exponent?In mathematics an exponent is the number of time that a number, called (base) is multiplied by itself. It is also called, power or index.
Example: 3² = 3*3 = 9
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Already did the gradient a , just stuck on gradient B
The gradient of line B is (-1).
What is gradient?The gradient of a line is used to calculate the steepness of a line and determines how much it is inclined with reference to the x-axis. To calculate the gradient of any line, the x and y coordinates of a line are used. In other words, it is the ratio of the change in the y-axis to the change in the x-axis.
The gradient is the measure of the steepness of a straight line.
Given:
coordinates taken from line B is (5, 0) and (-2, 7)
we have [tex]y_2[/tex]= 7, [tex]y_1[/tex]= 0, [tex]x_1[/tex]= 5, [tex]x_2[/tex] =-2
now, substituting the values then,
The gradient is
=[tex]( y_2- y_1)/ (x_2 - x_1)[/tex]
=(7-0) / (-2 - 5)
=7 /(-7)
=-1
Hence, the gradient is -1
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