The original price for the desk is $980.
What is percentage?A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred.
Given:
Sale price = 343
price was 35% of the original price.
let the original price be x
35% of x = 343
35 / 100 * x = 343
x= 343 * 100/ 35
x=980
Hence, the original price of the desk was $980.
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2a + 3b = 8 and 4x + 10y = 50
(i) What is the value of 6a + 9b?
(ii) What is the value of 2x + 5y?
a. It should be noted that the equation illustrates that the value of 6a + 9b is 24.
b. The value of 2x + 5y is 25.
How to illustrate the information?a. From the information, 2a + 3b = 8. The value of 6a + 9b will be:
6a + 9b = 3(2a + 3b)
This implies that the value will be multiplied by 3. Therefore, 8 × 3 = 24
(ii) What is the value of 2x + 5y?
4x + 10y = 50
It should be noted that this can be divided through by 2. This will be;
(4x + 10y = 50) / 2
2x + 5y = 25
The value is 25.
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The city of St. Louis is creating a welcome sign on a billboard for visitors to see as they enter the city. The following picture needs to be enlarged so that 1/2 inch represents 7 feet on the actual billboard. Will it fit on a billboard that measures 14 feet in height if the height of the figure is 1 in?
The scale is 1/2 to 7 feet. That means that for each half of an inch of the original picture, the scaled figure will have 7 feet.
Now,
[tex]1\text{ in = }\frac{1}{2}in\text{ +}\frac{1}{2}in.[/tex]That means that 1 inch corresponds to 7ft +7ft= 14ft.
Therefore, if my original figure is 1 inch in height the scaled picture will be 14 ft in height.
Answer: The scaled figure will fit in the billboard.
I’m confused on this and don’t know what to do please help
Answer:
83
Step-by-step explanation:
3x³+2y-6
x= 3 and y = 4, we will plug in what x equals to for the x value, then we will plug in what y equals to for the y value
3(3³) + 2(4) - 6
now let's use order of operations (PEMDAS: parenthesis exponent multiplication division addition subtraction)
parenthesis first
3³ = 3·3·3= 27
3(27) + 2(4) - 6
there are no exponents so we will use multiplication
3·27 = 81
2·4=8
81 + 8 - 6
83
Which relation is a function?
Find the perimeter of hexagon ABCDEF plotted below.
What is the probability of flipping a coin 7 times and getting heads 4 times?Round your answer to the nearest tenth of a percent.A. 27.3%B. 0.8%C. 5.5%D. 16.4%
We know that
• The probability of a head is 1/2.
,• The probability of a tail is 1/2.
Notice that the number of times they flip a coin is 7. Since both probabilities are the same, we just have to multiply 1/2 seven times by itself.
[tex]P=(\frac{1}{2})^7[/tex]Now, we multiply the probability with 7 since there are 7 possibilities.
[tex]P=7\cdot(\frac{1}{2})^7=7(0.0078125)=0.0546\approx0.055[/tex]Then, we multiply by 100 to express it as a percentage.
[tex]0.055\cdot100=5.5[/tex]Therefore, the answer is C. 5.5%.If m angle ABD=100^ , what is the relationship between AD and CD? OAD AD + DC < AC; CD = AD; CD > AD; CD < AD
Answer: CD<AD
Step-by-step explanation:
Just got it right on the test.
Answer: CD<AD
Step-by-step explanation:
Took the test!
im stuck on this question
a) g(3) = -182
b) g(0) = 7
c) g(-1) = 70
Explanation:[tex]\begin{gathered} \text{Given:} \\ g(x)\text{ = }7\text{ - 63x} \end{gathered}[/tex]a) g(3): To get this, we will substitute 3 for x in the function g(x)
[tex]\begin{gathered} \text{x = 3} \\ g(3)=\text{ 7 - 63(3) = 7 - 189} \\ g(3)\text{ = }-182 \end{gathered}[/tex]b) g(0): To get this, we will substitute 0 for x in function g(x)
[tex]\begin{gathered} x\text{ = 0} \\ g(0)\text{ = 7 - 63(0) = 7 - 0} \\ g(0)\text{ = 7} \end{gathered}[/tex]c) g(-1): To get this, we will substitute -1 for x in function g(x)
[tex]\begin{gathered} x\text{ = -1} \\ g(-1)\text{ = 7 - 63(-1)} \\ mu\text{ltiplication of same signs give positive sign} \\ g(-1)\text{ = 7 + 63} \\ g(-1)\text{ = 70} \end{gathered}[/tex]find the surface area of the figure in square yards.
Answer:
578.0 yd^2
Explanation:
The formula for finding the surface area of a cylinder is given as;
[tex]A=2\pi r(h+r)[/tex]where A = surface area
pi = 3.14
r = radius of the base of the circle = diameter/2 = 8/2 = 4 yd
h = height = 19yd
Let's go ahead and substitute these values into our formula and solve for A;
[tex]\begin{gathered} A=2\ast3.14\ast4(19+4) \\ =25.12(23) \\ =577.76 \\ \therefore A=578.0yd^2 \end{gathered}[/tex]Use the Polygon tool to draw an image of the given polygon under a dilation with a scale factor of and center of dilation (0,0)
The dilated polygon image is attached below under a dilation with a scale factor of 3 and center of dilation (0,0)
What exactly is a polygon?In geometry, a polygon is a two-dimensional closed shape with straight sides that is flat or plane. It doesn't have any curved edges. A polygon's sides are also known as its edges. The vertices (or corners) of a polygon are the points where two sides meet.
What is transformation and dilation?Transformation is the movement of a point from one location to another. Transformations include rotation, reflection, translation, and dilation.
Dilation is the process of increasing or decreasing the size of a figure by a factor k. If a point A(x, y) is dilated about the origin by a factor k, the new point is A' (kx, ky).
Assume the polygon has vertices at A(0, 0), B(3, 3) and C. (-3, 3). If the polygon is dilated by a factor of three with the center of dilation at (0, 0), the new vertices are as follows:
A'(0,0), B'(1, 1) and C'(-1, 1)
Therefore, the polygon graph is attached in which the polygon is dilated by a factor of three with the center of dilation at (0, 0),
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I need help with this question
Probability that first three price winners are omar, kira and elsa is [tex]\frac{1}{84}[/tex]
Probability that omar is first prize winner and kira is second prize winner and elsa is third price winner is [tex]\frac{1}{504}[/tex]
What is permutation and combination ?When things are of diverse kinds, the term "permutation" is used to describe the various arrangements that could be made. Combination, meanwhile, is the quantity of smaller groups or sets that can be created from the components of a bigger set.
(i)First 3 prizes must be given to 3 persons regardless of order
Hence they can also be arranged in 3! ways.
est 6 can be arranged in 6! ways.
positions ___ ___ ___ ___ ___ ___ ___ ___ ___
number of ways 3 2 1 6 5 4 3 2 1
total number of ways to arrange 9 people = 9!
[tex]P(A)= \frac{(3)(2)(1)(6)(5)(4)(3)(2)}{(9).(8).(7).(6).(5).(4).(3).(2))}[/tex][tex]P(A)=\frac{6}{9.8.7}[/tex][tex]P(A)= \frac{1}{84}[/tex]
(ii)Event A
In event A three positions are fixed .
Omar -1 Kira -2 Elsa -3
Therefore there is only 1 way to fill the 1st,2nd and 3rd position
Permutations can only be made among the other positions.
Positions - ___ ___ ___ ___ ___ ___ ___ ___ ___
Number of ways- 1 1 1 6 5 4 3 2 1
Total number of ways of arranging 9 people =9×8×7×6×5×4×3×2×1
Number of ways to satisfy event A =1×1×1×6×5×4×3×2×1
P(A)= [tex]\frac{(6)(5)(4)(3)(2)(1)}{(9)(8)(7)(6)(5)(4)(3)(2)(1)}[/tex]
P(A)= [tex]\frac{1}{504}[/tex]
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A $300 fax machine is on sale for 45% off. Find the amount of the discount and the sale price.
The amount of discount is $
The sale price is $
Need help with the bottom ones.. which is part b please.
EXPLANATION:
Solution first(a) exercise part b:
All the internal angles of a right triangle must add up to 180, so to order the internal angles from least to greatest we must find the missing angle;
The exercise is as follows:
[tex]\begin{gathered} D=61\text{ degr}ees \\ E=48\text{ degre}es \\ F=X \\ D+E+F=180 \\ 61+48+F=180 \\ 61+48-180=F \\ 71=F \\ The\text{ thre}e\text{ angles }added\text{ }must\text{ give 180;} \\ (D+E+F)=180 \\ (61+48+71)=180 \\ \\ \end{gathered}[/tex]Now we must order them from lowest to highest, the order is as follows:
[tex]ANSWER\colon E=48;\text{ D=61, F=71}[/tex]The mass, m kilograms, of a horse is 429 kg, correct to the nearest kilogram.
Complete this statement about the value of m.
Answer:
400 < m< 430 kg
Step-by-step explanation:
the mass of horse is 429 kg
estimated to the nearest hundred is 400 kg
estimated to the nearest tens is 430 kg
thus the value of m mass lies between 400 to 430
therefore
400 < m< 430 kg
The answer is 400 < m< 430 kg
Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(aza)0.4314, find a. Round to two decimal places.
The z-score of the given expression P(-a < z < a) = 0.4314 is; 0.55
How to Interpret Normal Distribution?We are told that P(-a < z < a) = 0.4314. Thus;
P(-a < z < a) = 0.4314 is represented by the area about mean. This means that; 0.4314/2 = 0.2157 is the area each on the left side and right side of mean.
Now, from online z-score calculator, we see that the z value corresponding to 0.2157 is 0.55.
Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1, if P(-a < z < a) = 0.4314, then it means that the z score is 0.55.
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Complete question is;
Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(−a < z < a) = 0.4314, find d a. Round to two decimal places
Consider the system of equations x+2y=8 -3x-2y=12 How do you solve the system of equations with Cramer's rule? Drag a value or determinant expression into each box to correctly solve the system using Cramer'
The solution to the system of equations are, x + 2y = 8 and -3x-2y = 12 is: X = -10 , Y = 9
The given system of equations:
x + 2y = 8 (Equation - 1)
-3x - 2y = 12 (Equation - 2)
This can be written in matrix form as shown:
[tex]\left[\begin{array}{ccc}1&2&\\-3&-2&\end{array}\right][/tex] [tex]\left[\begin{array}{ccc}x\\y\\\end{array}\right][/tex] [tex]= \left[\begin{array}{ccc}8\\12\\\end{array}\right][/tex]
Let us assume, D = [tex]\left[\begin{array}{ccc}1&2\\-3&-2\\\end{array}\right][/tex]
We can use cross multiplication,
= (-2)(1) - (-3)(2)
= -2 + 6
= 4 ≠ 0
So the system has a unique solution,
Then,
[tex]D_{1} = \left[\begin{array}{ccc}8&2\\12&-2\\\end{array}\right][/tex]
We can use cross multiplication,
[tex]D_{1} = (8)(-2)-(12)(2)\\D_{1} = -16-24\\D_{1} = -40[/tex]
[tex]D_{2} =\left[\begin{array}{ccc}1&8\\-3&12\\\end{array}\right][/tex]
We can use cross multiplication,
[tex]D_{2} = (12)(1)-(-3)(8)\\D_{2} = 12+24\\D_{2} = 36[/tex]
So, they can solve the X and Y values,
X = D1 / D
X = -40/4
X = -10
Y = D2 / D
Y = 36/4
Y = 9
Therefore,
The solution to the system of equations are, x + 2y = 8 and -3x-2y = 12 is: X = -10 , Y = 9
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87 billion 295 million written out
Answer: 87, 295,000,000 or eighty-seven two hundred ninety-five Billion
Im pretty sure
8. There were a total of 117 football games in
the season, and 33 were played at night. The
season was nine months long. How many
games were played each month, if each month.
had the same number of games?
So, 13 games were played each month, if each month had the same number of games.
What is division?Compared to multiplication, division is the opposite. If three groups of four add up to 12, then division of 12 into three groups of equal size yields four in each group. Creating equal groups or determining how many people are in each group after a fair distribution is the basic objective of division. It is referred to as a method of division to divide anything. According to the degree of difficulty, there are three different sorts of division procedures. These include the bus stop approach, the chunking method, and the long division method. The chunking method is also known as division by repeated subtraction.
Given Data
A total of 117 football games in the season, and 33 were played at night.
The season was nine months long.
Each month same numbers of game were played.
So,
117 ÷ 9
13
So, 13 games were played each month, if each month had the same number of games.
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Suppose there are 17 jelly beans in a box-2 red, 6 blue, 4 white, and 5 green.
What part of the jelly beans is blue? Express your answer in each of the forms requested.
The right angled triangle has an area of 22.5 cm² X+1 X-3 help quick with no calcalator way or quadratic formula
Answer:
x = 8
Step-by-step explanation:
You want the value of x for a right triangle with side lengths (x+1) and (x-3) and an area of 22.5 cm².
Triangle areaThe area of a triangle is given by the formula ...
A = 1/2bh
Then the area of this triangle is ...
22.5 = 1/2(x -3)(x +1)
45 = x² -2x -3
48 = x(x -2) . . . . . . . add 3 and factor out x
We know that 48 can be factored as (8)(6). Comparing this to x(x-2), we see that x=8.
__
Additional comment
x could also be -6, but that would make the side lengths be negative. The only applicable solution for this geometry is x=8.
You cook a turkey in an oven for 3 hours and 45 minutes. Let f(t) be the temperature (in degrees Fahrenheit) of the turkey t hours after being placed in the oven. Explain the meaning of each statement.
a. f(0)=67
b. f(3.75)=165
c. f(3)=f(4)
d. f(3.75)>f(4)
You cook a turkey in an oven for 3 hours and 45 minutes. Let f(t) be the temperature (in degrees Fahrenheit) of the turkey t hours after being placed in the oven.
a) At t = 0
temperature of turkey is 67 degree Fahrenheit
b) At t = 3.75
temperature of turkey is 165 degree Fahrenheit
c) t = 3
temperature of turkey is 4 degree Fahrenheit
d) at t = 3.75
temperature of turkey is 169 degree Fahrenheit
What is basic algebra ?Algebra is a branch of mathematics that facilitates the description of problems or situations into mathematical statements. It involves variables like x, y, and z as well as mathematical operations like addition, subtraction, multiplication, and division to generate a valid mathematical statement. All branches of mathematics, such as coordinate geometry, calculus, and trigonometry, employ algebra. An elementary algebraic formula is 2x + 4 = 8. Algebraic expressions serve as the mathematical statement when operations on variables and constants, such as addition, subtraction, multiplication, division, etc., are done.
Given that : You cook a turkey in an oven for 3 hours and 45 minutes. Let f(t) be the temperature (in degrees Fahrenheit) of the turkey t hours after being placed in the oven.
a) At t = 0
temperature of turkey is 67 degree Fahrenheit
b) At t = 3.75
temperature of turkey is 165 degree Fahrenheit
c) t = 3
temperature of turkey is 4 degree Fahrenheit
d) at t = 3.75
temperature of turkey is 169 degree Fahrenheit
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Similarities and differences between AAS and ASA Congruence Postulates
Answer:
Similarity: Both are geometry terms, used in proofs.
Difference: When to use, in the ASA we have two angles and one included side, while the AAS we have two angles, but we want to find a relation involving the non-involved size.
Step-by-step explanation:
ASA: Angle, Side, Angle
AAS: Angle, Angle, Side
Similarity: Both are geometry terms, used in proofs.
Difference: When to use, in the ASA we have two angles and one included side, while the AAS we have two angles, but we want to find a relation involving the non-involved size.
I am going to use the drawer to show the differences:
Which of the ten basic functions in
our toolkit have graphs that look the
same when reflected of the y-axis
and then reflected over the x-axis?
Answer:
a) x³, 1/x, x, sin(x)
Step-by-step explanation:
You want to know which list of functions has the same graph when reflected across both the y- and x-axes.
Odd functionReflection across the y-axis transforms the function to ...
f(x) ⇒ f(-x)
Reflection across the x-axis transforms the function to ...
f(x) ⇒ -f(x)
Hence, reflection across both axes transforms the function to ...
f(x) ⇒ -f(-x)
A function that has the characteristic that f(x) = -f(-x) is an odd function. Its graph is symmetrical about the origin. We can check to see if the functions of interest match this definition of an odd function:
x³ = -(-x)³ . . . . true
1/x = -(1/-x) . . . . true
x = -(-x) . . . . true
sin(x) = -sin(-x) . . . . true
cos(x) = -cos(-x) . . . . false
e^x = -e^-x . . . . false
|x| = -|-x| . . . . false
The basic functions that are odd are ...
x³, 1/x, x, sin(x)
Can you help me solve this question?
SOLUTION
Step1:
hence from the diagram above, the dimension of the rug is
[tex]\begin{gathered} 34-2x\text{ and } \\ 24-2x \end{gathered}[/tex]Since we have area of the rug,
then we have
[tex](34-2x)(24-2x)=704[/tex]We now solve the equation above quadratically
[tex]\begin{gathered} (34-2x)(24-2x)=704 \\ \text{expand the parenthesis } \\ 16-116x+4x^2=704 \\ \text{subtract 704 from both sides } \\ 816-116x+4x^2-704=704-704 \end{gathered}[/tex]Then we have
[tex]4x^2-116x+112=0[/tex]Solve using factor method we obtain
[tex]\begin{gathered} \text{Divide through by 4} \\ x^2-29x+28=0 \\ x^2-28x-x+28=0 \\ x(x-28)-1(x-28)=0 \\ (x-28)(x-1)=0 \end{gathered}[/tex]Equating each factor to zero we have
[tex]\begin{gathered} x-28=0,x-1=0 \\ x=28,1 \end{gathered}[/tex]Since x can not be 28, the value of x is 1
The Dimension of the rug becomes
[tex]\begin{gathered} 34-2x=34-2(1)=32 \\ \text{and } \\ 24-2x=24-2(1)=22 \end{gathered}[/tex]Hence the dimension of the rug is 32 ft by 22ft (22,32)
A function and its graph are given. Find the domain. (Enter your answer using interval notation.)
f(x) =
x − 3
x − 8
The domain for the rational function is the set of all real numbers except for 8, this is written as:
{x | x ∈ R, x≠8}
How to find the domain of the given function?
For any function f(x), the domain is the set of the possible inputs.
In this case, we have the rational function:
f(x) = (x - 3)/(x - 8)
Now, we start by assuming that the domain is the set of all real numbers, and then we remove all the problematic values.
Now, we can't divide by zero, so the value of x that makes the denominator zero needs to be removed, that is such:
x - 8 = 0
x = 8
So the domain is the set of all real numbers except for 8, this is written as:
{x | x ∈ R, x≠8}
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Two friends, Grayson and Santiago, had just bought their first cars. The equation y=31.9xy=31.9x represents the number of miles, yy, that Santiago can drive his car for every xx gallons of gas. Grayson uses 8 gallons of gas to drive 328.8 miles in his car.
How many miles less does Santiago's car travel on one gallon of gas than Grayson's car?
Step-by-step explanation:
Two friends, Grayson and Santiago, had just bought their first cars. The equation y=31.9xy=31.9x represents the number of miles, yy, that Santiago can drive his car for every xx gallons of gas. Grayson uses 8 gallons of gas to drive 328.8 miles in his car.
How many miles less does Santiago's car travel on one gallon of gas than Grayson's car?
..
please post full questions
please followIf f(x) = 4x + 12 is graphed on a coordinate plane, what is the y-intercept of the graph?
4
8
12
16
Answer: y-intercept is 12
Step-by-step explanation:
y = mx +b
m = slope
b = y-intercept
y | = | x | + | b
f(x) | = | 4x | + | 12
b = y-intercept
Find the value of each variable.
7
(4x + 8)
x=
Answer:
x=-1/4 or -.25
Step-by-step explanation:
I took the test and double checked it
When your spel of dice, there are several homes, showWhen rolling the dice, the outcome is expressed as a sum of the two dice. Forcrample, il after you rolled the dice, and one die was 33 and the other was 34 youwill have rolled aSelect all of the TRUE statements below There may be more than oneThe probabiliny troling the same digit with cach die is 1/4The odds in favour of roliga 10 is 1:13.The odds against rolling a nurther leathan 7 is 7:5.1$
The total possible outcome for the experiment is 36.
The ossible outcomes for same number on each dice is 6.
So probability for the same number on dice is,
[tex]\frac{6}{36}=\frac{1}{6}[/tex]So probability for the same number on dice is 1/6. So first statement "The probability of rolling the same digit with each die is 1/4" is false.
[tex]\rm \int_{-\infty}^0\sqrt{1+2^2}e^{2\theta}d\theta=\phi-\frac12\\[/tex]
Nothing tricky here:
[tex]\displaystyle \int_{-\infty}^0 \sqrt{1+2^2} \, e^{2\theta} \, d\theta = \sqrt5 \int_{-\infty}^0 e^{2\theta} \, d \theta \\\\ ~~~~~~~~ = \frac{\sqrt5}2 \left(e^0 - \lim_{\theta\to-\infty} e^{2\theta}\right) \\\\ ~~~~~~~~ = \frac{\sqrt5}2[/tex]
Recall that
[tex]\phi = \dfrac{1+\sqrt5}2[/tex]
and this is exactly 1/2 more than the value of the integral.