Answer:
-7.5
Step-by-step explanation:
[tex]\frac{6 + (-12) + 24 + (-48)}{4} =\frac{-30}{4} =-7.5[/tex]
A 117.3 cm²
B 104.8 cm²
C 97.3 cm²
D 71.1 cm²
The Lateral Surface Area of a Right triangular prism is given by:
= (a + b + c) × h
= (ah + bh +ch)
where a, b and c are the dimensions of base and h is the height of the Right triangular prism.
The given dimensions of base are:
a = 5 cm
b = 2.5 cm
c = 5.6 cm
The height of the Right triangular prism is 8 cm.
Now, the Lateral Surface Area of a Right triangular prism will be
= (5 + 2.5 + 5.6) × 8
= (40 + 20 + 44.8)
= 104.8 [tex]cm^{2}[/tex]
Therefore, the Lateral Surface Area of the Right triangular prism is 104.8 [tex]cm^{2}[/tex].
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Water flows over Niagara Falls at a rate of
(1.5 x 10) gallons per second. Find the amount of
water that flows over the falls in one minute. Express
your answer in scientific notation. Show your work.
Answer: I don't know if this is scientific notation, but I got 900 gallons.
Step-by-step explanation:
1.5 x 10 = 15
15 x 60 = 900
(I used 60 because there's 60 seconds in one minute)
Read each question. Then write the letter of the correct answer on your paper.What is the product of ∛3 and 5√3 ?
(A) 9√3 (B) 8√9 (C) 15√3⁸ (D) 9√3¹⁵
The product of ∛3 and 5√3 is 15√3⁸ (Option C).
This question can be easily solved by using the concept of roots. The two terms mentioned in the question are ∛3 ( cubic root of 3 ) and 5√3 (5th root of 3 ). This question can be solved in 4 easy steps
Step 1 : Identify the power of the root and take LCM of those numbers.
In this case, the powers of root for ∛3 and 5√3 are 3 and 5, respectively. Take LCM of 3 and 5.
LCM = 3 x 5 = 15
=> We get the LCM of 3 and 5 as 15.
Step 2 : Write the given numbers in the form of fractional powers
∛3 = 3¹ˡ³ => The power of 3 = 1/3
5√3 = 3¹ˡ⁵ => The power of 5 = 1/5
Step 3 : Multiply and divide the powers of the base number ( in this case 3 ) with a number such that you get the denominator as the LCM ( in this case 15 )
1/3 can be multiplied and divided by 5 to get the denominator as 15
=> 1 * 5 / 3 * 5 = 5 /15
1/5 can be multiplied and divided by 3 to get the denominator as 15
=> 1 * 3 / 5 * 3 = 3 /15
Step 4 : Find the product of the two terms
15√3⁵ x 15√3³ = 15√3³⁺⁵ = 15√3⁸
Therefore, using the concept of roots and fractions, we get the product of ∛3 and 5√3 as 15√3⁸.
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A right circular cylindrical metallic rod is 16 inches tall. The radius of the base is 4 inches. What is the surface area of this metallic rod, in terms of π? the choices are 150π 140π 145π and 160π
Answer:
160π
Step-by-step explanation:
The surface area of a right circular cylinder can be calculated using the following equation:
[tex]\boxed{\mathrm{Surface \ area = }2 \pi rh + 2 \pi r^2}[/tex] ,
where h is the height and r is the radius of the base of the cylinder.
We are told that the rod is 16 inches tall, therefore h = 16. We are also told that the radius of the base is 4 inches, therefore r = 4. Using this information along with the formula above, we can calculate the surface area of the metallic rod:
Surface area = [tex](2 \times \pi \times 4 \times 16) + (2 \times \pi \times (4)^2)[/tex]
= [tex]128\pi + 32\pi[/tex]
= [tex]\bf 160\pi[/tex]
Therefore the surface area of the metallic rod is 160π.
Answer:
[tex]144\pi \: or \: 145\pi[/tex]
SA to cylinder is
[tex]2\pi \: rh + \pi \: r {}^{2} [/tex]
=2
[tex] 2 \times \pi \times r \\ \times h + \pi \times r {}^{2} [/tex]
2
[tex]2\pi \times 4 \times 16 + \pi \times 4 \times 4[/tex]
answer =
[tex]144\pi \: to \: 145\pi[/tex]
answer quick thank you
Answer:
b = a² - 6
Step-by-step explanation:
a = [tex]\sqrt{b+6}[/tex] ← square both sides to clear the radical
a² = b + 6 ( subtract 6 from both sides )
a² - 6 = b
This doesn’t make sense I need the answer
Answer: i think that it is 2/-6
Step-by-step explanation:
Answer:
[tex]y10 = - 5[/tex]
Use the Change of Base Formula to evaluate each expression.
log ₁₂20
The value of the expression log ₁₂20 is 4.33.
Given that the expression is log ₁₂20.
We are required to find the value of the expression by using the change of base formula.
The change of base theorem is used by a person when we have been given logarithm values with different bases.
(We know that [tex]log _{a} b[/tex]=log b/ log a)
The expression is log ₁₂20.
log ₁₂20=log 20/log 12
Now we have to use values of log in the above expression to find its value.
=1.30/0.30
=4.33
Hence the value of the expression log ₁₂20 is 4.33.
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PQR is similar to WXY. PQ =12 cm and WX=9 cm. The area of WXY is 72 cm2. Find the area of PQR.
If PQR is similar to WXY and PQ=12 cm and WX=9 cm and the area of WXY is 72cm², then the area of PQR is equal to 128 cm².
The area of PQR can be determined by first finding the scale factor. The scale factor in mathematics can be defined as the ratio of the length of a side of one figure (which in this case is a triangle) to the length of the side of a similar figure.
Therefore, the scale factor = 9 / 12
Now by using theorem 61,
area ΔWXY / area ΔPQR = (9/12)²
As the area of WXY = 72cm², therefore;
72 / area ΔPQR = 81 / 144
81 (area ΔPQR) = 144 × 72
81 (area ΔPQR) = 10,368
area ΔPQR = 10,368 / 81
area ΔPQR = 128 cm²
Hence, the area of PQR is calculated to be 128 cm².
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If f(x)=2x-3x^2 what is f(2)
f(2) is -8
According to the question,
Given that,
f(x)=2x-3x^2
Substitute x = 2 into f(x) = 2x-3x^2
f(2)=2x-3x^2
f(2)=2x2 - 3x [tex]2^{2}[/tex]
f(2)= 4 - 3 x 4
f(2)= 4 - 12
f(2)= - 8
In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an ‘equal’ sign. The most basic and simple algebraic equations consist of one or more variables in math.
Example of an Equation:
4y + 2 = 18
4×2 + 3x − 28 = 0
9m = 49.5
Equation Types
Algebra considers two prominent families of equations, namely polynomial equations and linear equations. Polynomial equations with one variable can be written in P(x) = 0, where P is a polynomial, and ax + b = 0 is the general form of linear equations. Here, a and b are parameters. We can practice geometric or algorithmic methods from linear algebra or mathematical analysis to solve these equations. Also, there are different types of equations, such as:
Linear equations
Quadratic equations
Cubic equations
Quartic equations
Differential equations
Parametric equations
Equation of a line
The standard form of the equation of a line is A x + By + C = 0. The slope-intercept form of an equation is y = mx + b, where m is the slope of the line and b is the y-intercept. However, there are various types of equations to represent lines.
Equation of x-axis
Generally, we say that the equation of the x-axis equation is of the form y = 0. However, we can also write the x-axis equation as x = c where c is constant.
The x-axis comprises all the real values of x, although the value of y is equal to 0 on the complete x-axis.
Thus, x can be recognised as constant and y as 0.
In the coordinate system representation, we can represent any point on the x-axis as (c, 0), where c is any real number.
Therefore, the x-axis formula will be x= c + y
Here,
c = constant
y = 0
The x-axis formula is x = c, where c is constant.
Equation in One Variable
The equation in one variable means the equation containing only one variable. Let’s have a look at the below equations.
17 – 9 = 8
x + 4 = 4y + 22z
4x2 + 3x – 7 = 0
The three examples above represent equations that propose equality (could be true or not) between two expressions.
The first equation does not contain any variable.
The second equation has three different variables, such as x, y and z. Thus, it is a multivariate equation.
The third equation contains only one variable, i.e. x.
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Work out 3/4-1/3 in fraction form
Answer:
[tex]\frac5{12}[/tex]
Step-by-step explanation:
[tex]\frac34 - \frac13\\\\\to \frac34 \times \frac33 - \frac13 \times \frac44\\\\\to \frac9{12} - \frac4{12}\\\\\to \frac{9 - 4}{12} \to \frac5{12}[/tex]
How to find the Length of a triangle
Answer:
10
Step-by-step explanation:
it us a right triangle so we can use the equation
a^2 + b^2 = c^2
6^2 + 8^2 = c^2
36 + 64 = c^2
100 = c^2
10 = c
a number is at least 6 and less than 15. Write as inequality and graph.
The inequality expression 6 <= x < 15 to represent the statement "a number is at least 6 and less than 15"
What are expressions?Expressions are mathematical statements that are represented by variables, coefficients and operators
How to determine the expression and the inequality?The mathematical statement is given as
a number is at least 6 and less than 15.
Represent the number with x
So, we have
x is at least 6 and less than 15.
At least 6 means greater than or equal 6
So, we have
x >= 6
Less than 15
So, we have
x < 15
When the above expressions are combined, we have
6 <= x < 15
Next, we plot the inequality expression 6 <= x < 15 to represent the statement "a number is at least 6 and less than 15"
See attachment for the inequality expression
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12,345.6789 to nearest whole number
After rounding off the whole number it becomes 12,346.
According to the statement
We have to find that the value of the whole number.
So, For this purpose, we know that the
The whole numbers are the numbers without fractions and it is a collection of positive integers and zero.
From the given information:
The given number is a 12,345.6789
Then
We know that the
Rounding off means a number is made simpler by keeping its value intact but closer to the next number. It is done for whole numbers etc.
The number
12,345.6789
Its round off to the
12,346
Because when the number greater than 5 comes after the point then while rounding off we increased the number by 1.
So, After rounding off the whole number it becomes 12,346.
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The length of a rectangle is 15 inches more than twice the width. if the perimeter is 54 inches, find the dimensions (p = 2l + 2w)
Answer:
length = 23 inches , width = 4 inches
Step-by-step explanation:
let width be w then length l = 2w + 15
the perimeter P is calculated as
P = 2l + 2w
given P = 54 , then
2(2w + 15) + 2w = 54
4w + 30 + 2w = 54
6w + 30 = 54 ( subtract 30 from both sides )
6w = 24 ( divide both sides by 6 )
w = 4
l = 2w + 15 = 2(4) + 15 = 8 + 15 = 23
the length is 23 inches and width is 4 inches
xv plus 6x negative 5 equals 0
After converting the mathematical statement - xv plus 6x negative 5 equals 0 into mathematical equation, we get -
x = 5/(v + 6).
What is linear equation?
An equation of the form ax + b = 0 such that a ≠ 0 is called linear equation in one variable. The graph of this equation represents a straight line.
Given is a linear equation in the form of a mathematical statement -
xv plus 6x negative 5 equals 0.
In order to solve for x, we will first convert this mathematical statement into a linear mathematical equation. The mathematical equation can be written as -
xv + 6x - 5 = 0
We will solve this question using transpose method.
xv + 6x = 5
x(v + 6) = 5
x = 5/(v + 6)
Therefore, after converting the mathematical statement - xv plus 6x negative 5 equals 0 into mathematical equation, we get -
x = 5/(v + 6)
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Solve each equation. ln 5 x=4
The solution for the equation ln 5 x=4 is 10.92.
What is an equation ?
ln 5 x=4
5 x = [tex]e^{4}[/tex]
x = 10.92
A formula would be 3x - 5 = 16, for instance. When this equation is solved, we discover that the value of the variable x is 7.
The point-slope form, standard form, and slope-intercept form are the three main types of linear equations.
A formula that expresses the connection between two expressions on each side of a sign. Typically, it has a single variable and an equal sign.
Two expressions joined by the equals symbol ("=") form an equation. The "left hand side" and "right hand side" of the equation are the expressions on either side of the equals sign. The right side of an equation is frequently considered to be zero.
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Solve the compound inequality.
2x-4 > 8 or 3x-1 < -10
Responses
-3 < x < 6
x < 6 or x < -3
x > 6 or x < -3
x > 2 or x < -3
Step-by-step explanation:
2x-4 > 8 or 3x-1 < -10
Grouping the like terms
2x > 8 +4 or 3x < -10 +1
2x > 12 or 3x < -9
2x > 12 3x < -9
2 2 3 3
x > 6 or x < -3
A student wants to save $ 8000 for college in five years. How much should be put into an account that pays 5.2% annual interest compounded continuously?
- What formula should you use?
$6208.86 amount should be put into an account that pays 5.2% annual interest compounded.
Compound interest is interest calculated on the principal and the interest accrued in previous periods. Compound interest is interest based on principal and interest accumulated over a period of time.A general formula for the number of times capital is compounded in his year. If the interest is compounded annually, the amounts is given by [tex]A=P(1+\frac{r}{100})^t[/tex] ...(1) where "A" represents the new principal , "P" represents the original or initial amount , "r" is the annual rate , "t" represents the number of years .
It is given that a student wants to save $ 8000 for college in five years having interest 5.2% annual interest compounded .
Putting [tex]A=\$8000 , \ r= 5.2\% , \ t=5 \ years[/tex] in equation (1) , we get
[tex]8000=P(1+\frac{5.2}{100} )^5\\\\8000=P(1+0.052)^5\\\\8000=P(1.052)^5\\\\8000=1.28848P\\\\P=\$6208.86[/tex]
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Please help I need this in an hour
Radio signals travel at a rate of 3 × 108 meters per second. How many seconds would it take for
a radio signal to travel from a satellite to the surface of Earth if the satellite is orbiting at a height
of 4.2 x 107 meters? (Hint: Time is distance divided by rate.)
01.26 x 1016 seconds
01.26 x 1015 seconds
01.4 x 10¹ seconds
01.4 x 10-¹ seconds
Answer:
0.14*10⁻¹ seconds
Step-by-step explanation:
3 × 10⁸ = 30*10⁷
Then:
4.2*10⁷ / 30*10⁷ = 4.2/30 = 0.14
0.14 = 1.4*10⁻¹ seconds
Translate this sentence into an equation. The product of 9 and Victor's height is 162. Use the variable v to represent Victor's height.
Answer: 9v=162
Step-by-step explanation:
If you need the answer, Victors height is 18.
9v = 162
/9 /9
V = 18
Step-by-step explanation:
we are given a variable of victors height as v
according the expression
9 × v = 162
9v = 162
divide both sides by 9
v = 18
write an expression that represents the phrase "one third the difference of 15 and a number"
Answer: 1/3-5(n)
Step-by-step explanation:
A theater wants to take in at least $2,000 for a particular showing of a movie.
Children's tickets cost $5 each and adult tickets cost $10 each. Write an
inequality describing the number of tickets that will allow the theater to meet
their minimum. Let x = the number of children's tickets sold and y = the
number of adult tickets sold.
15xy 2000
5x+10y < 2000
5y + 10x ≥ 2000
5x+10y ≥ 2000
The inequality describing the number of tickets that allows the theater to meet their minimum will be 5x + 10y ≥ 2000. Then the correct option is D.
What is inequality?Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.
A movie theater hopes to make at least $2,000 from a certain showing. Adult tickets are $10 each, while child tickets are $5 each.
Let x be the number of children's tickets sold and y be the number of adult tickets sold. Then the inequality is given as,
5x + 10y ≥ 2000
The inequality describing the number of tickets that allows the theater to meet their minimum will be 5x + 10y ≥ 2000. Then the correct option is D.
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what is the square root of 400 and how do you know?
Answer:
The square root of 400 is represented by √400, where ‘√’ represents a radical and a radicand represents its value. It is rational to multiply 400 by 20, which is 20. Simple prime factorization or long division can be used to find the square root. Taking the square root of 400, we get √400 = ±20
Step-by-step explanation:
Evaluate each logarithm.
log₁/₅625
We need to know about logarithm to solve this problem. The answer of the given algorithm is -4.
Logarithm is the exponent that a base needs to be raised to get a certain number. There are a few rules of algorithm, log a + log b can be written as log ab, log a- log b can be written as log a/log b. When a number whose logarithm is being calculated is raised to a power, the power can be multiplied to the log itself. In this question we have to find the logarithm of 625 with base 1/5. To find the logarithm of this number we need to first write 625 in terms of 1/5, the log of number same as base is equal to 1.
[tex]log_{\frac{1}{5} } 625=-log_{\frac{1}{5} } (\frac{1}{5} )^{4} =-4log_{\frac{1}{5} } \frac{1}{5} =-4[/tex]
Therefore we found out the logarithm of 625 with base 1/5 to be -4.
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Descartes says 15.7 is less than 15.245 because 15.27 has fewer digits after the decimal point than 15.245 . is he correct ? explain
The statement "15.7 is less than 15.245 because 15.27 has fewer digits after the decimal point than 15.245" is false
How to determine the true statement?The statement is given as
15.7 is less than 15.245 because 15.27 has fewer digits after the decimal point than 15.245
When comparing greater and lesser values, we do not make use of the number of digits in them
Instead, we compare the values
Though, 15.7 is less than 15.245 but the reason is that 15.27 has lesser value than 15.245
Hence, the statement "15.7 is less than 15.245 because 15.27 has fewer digits after the decimal point than 15.245" is false
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PLEASE HELP AND ANSWER!!!!
Describe how solving |w-9|<=2 is different than solving |w-9|=2
The equation has just two solutions, which are 11 and 7.
While the inequality will have a range of solutions, which is:
7 ≤ w ≤11
That is the difference.
How is different solving the inequality than the equation?
Here we have an inequality:
|w - 9| ≤ 2
And an equation:
|w - 9| = 2
To solve these we can start by solving the equation, it gives two equations:
w - 9 = 2
w - 9 = -2
With these we can get two solutions for w,:
w = 2 + 9 = 11
2 = -2 + 9 = 7
Then the equation has just two solutions, which are 11 and 7.
While the inequality will have a range of solutions, which is:
7 ≤ w ≤11
That is the difference between the two.
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5 5/6 divided by 3 1/6
let's firstly convert the mixed fractions to improper fractions and then divide.
[tex]\stackrel{mixed}{5\frac{5}{6}}\implies \cfrac{5\cdot 6+5}{6}\implies \stackrel{improper}{\cfrac{35}{6}} ~\hfill \stackrel{mixed}{3\frac{1}{6}}\implies \cfrac{3\cdot 6+1}{6}\implies \stackrel{improper}{\cfrac{19}{6}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{35}{6}\div \cfrac{19}{6}\implies \cfrac{35}{6}\cdot \cfrac{6}{19}\implies \cfrac{35}{19}\cdot \cfrac{6}{6}\implies \cfrac{35}{19}\cdot 1\implies 1\frac{16}{19}[/tex]
Calculate the possible values for missing value (2, 19) (32, y) given the distance of 34
[tex]~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{2}~,~\stackrel{y_1}{19})\qquad (\stackrel{x_2}{32}~,~\stackrel{y_2}{y})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ \stackrel{d}{34}=\sqrt{(32-2)^2 + (y-19)^2}\implies 34^2=(32-2)^2 + (y-19)^2 \\\\\\ 1156=30^2 +(y-19)^2\implies 1156=900 + (y-19)^2\implies 256=(y-19)^2 \\\\\\ \pm\sqrt{256}=\pm\sqrt{(y-19)^2}\implies \pm 16=\pm (y-19)\implies \mp 16 =y - 19 \\\\\\ \mp 16 + 19 = y\implies y= \begin{cases} 3\\ 35 \end{cases}[/tex]
hat is the recursive formula for the sequence defined by the explicit equation an=15-3n
Answer:
a₁ = 12aₙ = aₙ₋₁ - 3Step-by-step explanation:
Recursive formula is used to represent the terms using the previous term of the sequence.
Using the explicit equation find the first two terms and their difference:
a₁ = 15 - 3*1 = 15 - 3 = 12a₂ = 15 - 3*2 = 15 - 6 = 9d = a₂ - a₁ = 9 - 12 = - 3The recursive formula for this sequence is:
a₁ = 12aₙ = aₙ₋₁ - 3