a rectangular guitar case has a unique rhombus design on the top that has a height of 13 inches and a base of 2 feet. what is the area of the design in square inches?
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Answer:
312
Step-by-step explanation:
Answer:
312
Step-by-step explanation:
Related Questions
16x - 2 + 2 = 18 + 2
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Answer:
5/4 or 1 1/4 or 1.25
Step-by-step explanation:
Mrs. Jameson's math test scores are represented by the following data.
A number line depicts math test scores. The data points plotted are from 55 through 65, 65 through 78, 78 through 92, and 92 through 100.
Which of the following lists the lower quartile, median, and upper quartile (in that order)?
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Answer: A quartile is a type of quantile that splits a data set into four equal parts. The first quartile (Q1) is also known as the lower quartile and is the value that separates the lowest 25% of the data from the rest. The second quartile (Q2) is also known as the median and is the value that separates the lowest 50% of the data from the highest 50%. The third quartile (Q3) is also known as the upper quartile and is the value that separates the lowest 75% of the data from the highest 25%.
In this case, the lower quartile (Q1) is 65, the median is 78, and the upper quartile (Q3) is 92.
Step-by-step explanation:
The area of the parallelogram below is square meters. (4 points) 6 m 7 m 2 m
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42 if the base is 6 and the 7 is height, while if the base is 7 and the 2 is height the answer is 12 , then , if the 2 is base and then the 6 is height the answer is 12 again
Step-by-step explanation:
thats all
An object is moving at a speed of 2 centimeters ever 7 seconds. express this speed in meters per week.
Answers
The speed of the object is 12121 m per week.
What does it mean to do speed?
“Speed” is a street name for various stimulant drugs that teens, young adults and others use to feel more alert and focused, and in some cases, to feel high. Some people also use various forms of speed to reduce their appetite. Types of speed include: Amphetamines (used to treat ADHD, narcolepsy, and depression)The object is moving at a speed of 2 centimeters every 7 seconds.
We need to find the speed in m per week.
2 cm = 0.02 m
1 week = 604800 s
7 s = \(1.65 * 10^{-6} week\)
Speed = distance/time
So,
\(v = \frac{0.02 m}{1.65 * 10^{-6 } week}\)
\(v = 12121.21 m/ week\)
or v = 12121 m/ week
So, the speed of the object is 12121 m per week.
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New York City is 14.5 inches from Los Angeles on a map. The scale on the map shows 2 inches = 350 miles. How many miles apart are New York City and Los Angeles?
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By applying the correspondent change of units, we will see that the distance between New York and Los Angeles is 2,537.5 mi
How to do a change of scale.
So we do know that in the map, every 2 inches represents 350 miles. This is the scale of the map and can be written as:
2 in = 350 mi
Dividing both sides by 2 we get:
1 in = 175mi
We know that, in the map, the distance from New York to Los Angeles is 14.5 in, using the above relation we have:
14.5 in = (14.5)*175 mi = 2,537.5 mi
So the distance from New York to Los Angeles is 2,537.5 miles.
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The miles between New York City and Los Angeles is 2,537.50 miles.
What is a scale drawing?A scale drawing is a smaller representation of a larger image. The map is a scale drawing of the United States. A scale drawing is reduced by constant dimensions.
How to determine the actual distance from New York City and Los AngelesActual distance = (14.5 x 350) / 2 = 2,537.50 miles
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4.
Simplify.
x over 4x+x^2
30 points; plus if you answer each one in the photo I’ll give you brainliest
Answers
\(x + x^3\) is the simplified expression of \(x/4x + x^2\)
How do you simplify the expression?To simplify , we will find common denominator. A common denominator means the number which can be divided by all the denominators in a group of fractions.
The denominator of first fraction is 4x, so we will rewrite the expression as:
From \(x/4x + x^2\)
To: \((x/4x) + (x^2(4x)/4x).\)
Simplifying second fraction gives us:
(4x^3)/4x.
We will cancel out common factor of 4x, so, we are left with \(x + x^3\)as the simplified expression.
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If the residual sum of squares (SSR) in a regression analysis is 66 and the explained sum of squares (SSE) is equal to 34, what is the value of the R2
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In regression analysis, the total sum of squares (SST) is calculated as the sum of squares for regression (SSR) and sum of squares for error (SSE). The value of R² is 0.66.
The total sum of squares (SST) is the variation that can be accounted for in a model. R-squared (R²) is used to indicate how much variation in the response variable is explained by the regression model.
A formula for R² is provided below.\(R² = SSR/SST\)
On the other hand, if the residual sum of squares (SSR) in a regression analysis is 66 and the explained sum of squares (SSE) is equal to 34, the total sum of squares (SST) can be calculated as:
SST = SSR + SSE
= 66 + 34
= 100R² can be calculated by using the equation provided below.
R² = SSR/SST
= 66/100
= 0.66
Therefore, the value of R² is 0.66.
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Pls help with n.b : 10,11,12 U GET 13 COINS BC ITS ALL I HAVE PLS HELP!!
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Please mark as brainliest
What is 3/6 = 15/x could you please tell me the answer I need it bad Ummm here is another one what is 35 x 189 and 123 x 1245 1287 819001010+ 135678 234567890+ 1234567890 thanks, people bye
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2. 23,339
The others one just copy and paste onto the Google calculator
What is the approximate probability that a student will be in three or more clubs given they are a boy
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The approximate probability that a student will be in three or more clubs given they are a boy is 80.6%
How can the approximate probability be calculated?Probability is the likelihood that something will occur. When we don't know how an event will turn out, we can discuss the likelihood or likelihood of several outcomes. Statistics is the study of events that follow a probability distribution.
P( 3 or more club n boy)/ P( 3 or more club )
= 50/62
=25/31
The % = 25/31 *100
= 80.6%
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−5.8c+4.2−3.1+1.4c helppppppp
Answers
Answer:
its 4
Step-by-step explanation:
A population has a mean of 53 and a standard deviation of 21. A sample of 49 observations will be taken. The probability that the sample mean will be greater than 57.95 is ___. a. 0.450 b. 0.9505 c. 0.0495 d. 0
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The probability that the sample mean will be greater than 57.95 is 0.0495.
What is probability?Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one. This is the basic probability theory, which is also used in the probability distribution.
To solve this question, we need to know the concepts of the normal probability distribution and of the central limit theorem.
Normal probability distributionProblems of normally distributed samples can be solved using the z-score formula.
In a set with mean \(\mu\) and standard deviation \(\sigma\), the z-score of a measure X is given by:
\(Z=\dfrac{X-\mu}{\sigma}\)
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Central Limit TheoremThe Central Limit Theorem establishes that, for a random variable X, with mean \(\mu\) and standard deviation \(\sigma\), a large sample size can be approximated to a normal distribution with mean \(\mu\) and standard deviation \(\frac{\sigma}{\sqrt{\text{n}} }\).
In this problem, we have that:
\(\mu=53,\sigma=21,\text{n}=49,\text{s}=\frac{21}{\sqrt{49} }=3\)The probability that the sample mean will be greater than 57.95
This is 1 subtracted by the p-value of Z when X = 57.95. So
\(Z=\dfrac{X-\mu}{\sigma}\)
By the Central Limit Theorem
\(Z=\dfrac{X-\mu}{\text{s}}\)
\(Z=\dfrac{57.95-53}{3}\)
\(Z=1.65\)
\(Z=1.65\) has a p-value of 0.9505.
Therefore, the probability that the sample mean will be greater than 57.95 is 1-0.9505 = 0.0495
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Find the equation of a line with each of the following characteristics. a) parallel to the line y = 3x + 5 and has a y-intercept of -1 b) perpendicular to the line y = 5x - 1 and passes through the point (10, 8) c) perpendicular to the line y = 1⁄3x + 4 and has an x-intercept of 2.
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Answer:
y = 1/2x - 1
Step-by-step explanation:
When you put all three equations from the question into a graph and then input the equation i just gave you it will be perpendicular to line B & C, also it will be parallel to line A. Finally you can check yourself that it also has a y-intercept of (0,-1) & an x-intercept of (2,0). Hopefully this helps out & gets brainliest. xD
The graph shows the distance Caleb runs over time. Whats the slope of the line and the equation?
Answers
Answer:
slope = 1/8
equation: y = 1/8 x
Step-by-step explanation:
Let distance = y.
Let time = x.
y = mx + b
Look at point (1, 8).
Also, the line passes through (0, 0).
slope = m = 1/8
Since it is a direct proportion, b = 0.
Equation: y = 1/8 x
Use Right Triangle Trigonometry to solve this problem. Round your answer to the nearest TENTH.
Answers
50 ft from the tower
angle=60°
since we know the angle and the Adj leg
we want to solve the Opp leg
then
\(tan(\theta)=\frac{Opp}{Adj}\)\(tan(60)=\frac{Opp}{60}\)\(60tan(60)=Opp\)\(60\sqrt{3}=Opp\)\(Opp=103.92304\)Rounded to the nearest tenth
the tower is 103.9 ft tall
A student inscribed a triangle within a semicircle. What is the measure of angle MNO
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What is the solution to the equation below? (Round your answer to two
decimal places.)
log₂ x = 4.3
A. x = 18.49
B. x=2.15
C. x = 8.60
D. x=19.70
Answers
Answer:
D
Step-by-step explanation:
using the rule of logarithms
\(log_{b}\) x = n ⇒ x = \(b^{n}\) , then
\(log_{2}\) x = 4.3 ⇒ x = \(2^{4.3}\) ≈ 19.70 ( to 2 dec. places )
Given P(A) = 0.56, P(B) = 0.45 and P(B|A) = 0.7, find the value of
P(A and B), rounding to the nearest thousandth, if necessary.
Answers
Answer:
P(A and B) = P(AnB)
Step-by-step explanation:
\(P( \frac{A}{B} ) = \frac{P(AnB)}{P(B)} \\from \: bayes \: theorem \\ P(AnB) = P(B) \times P( \frac{A}{B}) \\ = 0.45 \times 0.7 \\ = 0.315\)
Answer: 0.392
Step-by-step explanation:
So P(A)xP(B|A)= P(AnB)
Plug in
0.56x0.7=0.392
The length of a rectangle is 6x 2 and the width of the rectangle is x + 1. The perimeter of
the rectangle is 236. Which answer choice shows an equation that can be used to find x
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Answer:
12 + 1x = 236 maybe that
Step-by-step explanation:
Which table of values corresponds to the graph below?
On a coordinate plane, a line goes through points (0, negative 2) and (2, 0).
Answers
The table of values corresponding to the linear function that goes through (0, -2) and (2,0) is has points (x,y) in the following format:
(x, x - 2).
What is a linear function?A linear function is modeled by:
y = mx + b
In which:
m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.The line goes through (0,-2), hence the y-intercept is b = -2. The slope is given by:
m = (0 - (-2))/(2 - 0) = 2/2 = 1.
Hence the equation is:
y = x - 2.
Thus the points on the table are related as follows:
(x, x - 2).
For example
x f(x)
0 -2
1 -1
2 0
3 1
4 2
5 3
And so on...
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nine multiplied by four sixths
Answers
What is an example of an extraneous solution in math?
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An example of an extraneous solution in math is solving the equation 1/(x−2) + 1/(x+2) = 4/(x−2)(x+2) for x.
An extraneous solution is a root of a transformed equation that is not the root of the original equation because it was excluded from the domain of the original equation.
Solve the equation 1/(x−2) + 1/(x+2) = 4/(x−2)(x+2) for x
1/(x−2) + 1/(x+2) = 4/(x−2)(x+2)
(x−2)(x+2)/(x−2) + (x−2)(x+2)/(x+2) = 4(x−2)(x+2)/(x−2)(x+2)
(x−2) + (x+2) = 4
2x = 4
x = 2
But 2 is excluded from the domain of the original equation because it would make the denominator of one of the fractions zero--and division by zero is not allowed. Therefore, it cannot be the root of the original equation. So, 2 is an extraneous solution. So, the equation has no solutions.
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8. Use the Cofunction Theorem to fill in the blank so that the expression becomes a true statement. Tan (90° − x°) = cot9. Simplify the expression by first substituting values from the table of exact values and then simplifying the resulting expression. 3 sin2 30° + 3 cos2 30°10. Simplify the expression by first substituting values from the table of exact values and then simplifying the resulting expression. 3(sin2 45° − 2 sin 45° cos 45° + cos2 45°)11. Simplify the expression by first substituting values from the table of exact values and then simplifying the resulting expression. (tan 45° + tan 60°)212. For the expression that follows, replace x with 30° and then simplify as much as possible. 2 cos(3x − 45°)13. For the expression that follows, replace z with 90° and then simplify as much as possible. 10 cos(z − 30°)
Answers
9. 3 sin2 30° + 3 cos2 30° = 3/2
10. 3(sin2 45° − 2 sin 45° cos 45° + cos2 45°) = 0
11. (tan 45° + tan 60°) = √3 + 1
12. 2 cos(3(30) − 45°) = -sqrt(3)/2
13. 10 cos(90° − 30°) = 5√3
if x represents quantity and y represents the quantity which of the tables below represnt a direct proportion
Answers
-9(-4r + 6s) + 3s – 7(6s – 2r)
Answers
Answer:
50r-93s
Step-by-step explanation:
-9(-4r + 6s) + 3s – 7(6s – 2r)
distribute
36r-54s+3s-42s+14r
add like terms
50r=93s
A store pays $70 for a bicycle. The store is selling the bicycle for $84. What is the percent of markup?
Answers
Given:
\(\begin{gathered} C_{\text{ost price}}=70 \\ S_{\text{elling price}}=84 \end{gathered}\)To Determine: The percentage markup
The percentage is calculated by the formula below
\(P_{\text{ercent mark up}}=\frac{S_{elling\text{ price}}-C_{ost\text{ price}}}{C_{ost\text{ price}}}\times100\%\)Substitute the given into the formula
\(\begin{gathered} P_{\text{ercent mark up}}=\frac{84-70}{70}\times100\% \\ P_{\text{ercent mark up}}=\frac{14}{70}\times100\% \\ P_{\text{ercent mark up}}=\frac{1}{5}\times100\% \\ P_{\text{ercent mark up}}=20\% \end{gathered}\)Hence, the percent of mark up is 20%
Alejandra viajó a Acapulco, su avión salió el segundo sábado de octubre y se quedó 29 días. ¿Qué día terminó su visita? Si se hubiera demorado 10 días más para retornar, ¿qué día viajaría?
Answers
Answer:
Primera pregunta: es el Jueves 21 de mayo
Segunda pregunta: Viajaría el 11 de abril
40 días en total si se cuenta desde el momento que tomo el vuelo.
Step-by-step explanation:
Four bags of dry dog food plus 9.5 pounds of dry cat food weigh 17.5 pounds in all. How many pounds does each bag of dog food weigh?
Answers
Answer:
2
Step-by-step explanation:
17.5-9.5=8
\(4\sqrt{8}\)=2
Each bag of dog food weight 2 pounds.
What is the product of 2 1/8and 4 1/3
Answers
Hey there :,)
The answer is D. 9 5/24
Answer:
D
Step-by-step explanation:
A cookie recipe calls for 2 cups of m&m's to make 12 cookies. How many cups of m&m's are needed to make 84 cookies
Answers
Answer:
14 cups of m&m's to make 84 cookies
Step-by-step explanation:
If it takes 2 cups of m&m's to make 12 cookies. then you need to see how many times the original recipe will go into 84. Seeing that 84/12=7 you would need to multiply the original recipe by 7.
For example:
84/12=7 This is how many times the recipe is multiplied if you make 84 cookies.
2x7 is the amount of m&m's you would need to make the larger batch of cookies.