Answer:
undefined slope
Step-by-step explanation:
There us change in rise but no change in run or x value. This means is a vertical line and it's slope is undefined.
When 3 is added to a number, and the result is multiplied by 5, you obtain two times the number
Hi
to solve you must transcrive every word in math terms correctly.
so let's first give a name to our mysterious number. As you know, in math we generally call unknown by letter. " X"
so let's now play the detective.
what do we know on " X" ?
we add 3 to X so we have : X+3
then we multiply by 5. so. ( X+3) *5 .
if we do that we have twice X , so 2X
so ( X+3) * 5 = 2 X
now that we have translatted our data in math term, let's unmask. " X"
( X+3) *5 = 2X
5*X +3*5 = 2X
5X +15 = 2X
5X-2X = -15
3X = -15
X = -15/3
X = -5
So is " -5" is our guy.
let's check it out to be sure .
-5 +3 = -2
-2*5 = -10
-10 is twice -5. so -5 is the correct answer.
Ps : some operation are commonly implied. if you do not. know how I could write some line in the calculus, dont hesitate to ask in comments.
There is no mysteries in math everything is done according to rules and can be explained. So don't hesitate !
Which answers describe the shape below? Check all that apply.
31
A
A. Quadrilateral
B. Rhombus
C. Trapezoid
D. Parallelogram
E. Rectangle
F. Square
Answer:
A and D are correct. This is a parallelogram, which is a quadrilateral. B is not correct because not all the sides are congruent. C is not correct. E and F are not correct because this parallelogram does not have any right angles.
Darren worked 28 hours at $3.15 per hour. He made the following tips:$18, $16, $20, $30, and $18. What is his average hourly wage?a. $58b. $20.40c. $5.80d. $6.79
In order to get the average hourly wage we have to compute the total earnings and then divide it by the total hours:
\(\begin{gathered} E=(28\cdot3.15)+18+16+20+30+18=190.2 \\ Av=\frac{E}{t}=\frac{190.2}{28h}=6.79 \end{gathered}\)Therefore, the average hourly wage is 6.79 dollars per hour. Answer d.
A missile uses an internal computer clock to measure time in tenths of a second. The missile guidance system needs the time from launch, in seconds, in order to calculate its distance from the launch site. It obtains this by multiplying the computer clock time by 0.1. So, for example, a reading of 50 tenths of a second is 5 seconds. For one particular missile system, the conversion factor of 0.1 is stored in 8 bits as the binary number 0.000110012.
The missile’s internal computer clock shows 200 tenths of a second. Convert this to seconds using your result from Part (i) of this question. Do not round your answer. The missile guidance system now records that it has travelled for this number of seconds.
Using proportions, it is found that the missile's internal computer clock is of 20 seconds.
According to the information given, this question can be solved by proportions, using a rule of three.50 tenths of a second is equivalent to 5 seconds, and we want to find the equivalent to 200 tenths of a second, thus, the rule of three is:
50 tenths - 5 seconds
200 tenths - x seconds
Applying cross multiplication:
\(50x = 5(200)\)
\(50x = 1000\)
\(x = \frac{1000}{50}\)
\(x = 20\)
The missile's internal computer clock is of 20 seconds.
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a playpen for a large dog has 12 panels. Each panel is 2 feet long. There are 3 different ways to arrange the panels so that each playpen has a different set of dimensions. Draw the shape of each possible playpen. Label the length and width of each playpen.
The drawing of the 3 different ways (obtained by writing the equation related to the information in the question) to arrange the panels that gives the 3 playpens different dimensions created with MS Word is attached.
What is a mathematical equation?An equation is a mathematical (representation) of a statement that connects two expressions with an equals sign.
The number panels on the playpen = 12
Length of each panel = 2 feet long
The number of ways to arrange the panel = 3 ways
The number of panels on each side of the playpen can be found using the equation;
2·a + 2·b = 12
Where;
a and b are natural numbers (integers larger than zero)
a and b are the number of panels on a width and the adjacent length of the playpen
Therefore;
(2·a + 2·b)/2 = 12/2 = 6
2·(a + b)/2 = 6
a + b = 6
b = 6 - a
Fist configuration
When a = 1, b = 6 - 1 = 5
a = 1, b = 5
One configuration is therefore; the width of the playpen contains one panel and the length of the playpen contains 5 panelsSecond configuration
When a = 2, b = 6 - 2 = 4
a = 2, b = 4
The second configuration is; There are two panels along the width of the playpen and four panels along the playpen's length.Third configuration
When a = 3, b = 6 - 3 = 3
The third configuration is therefore; The width of the playpen has 3 panels and the length of the playpen has three panels.Please find attached the shape of the three playpens based on the three possible arrangements created with MS Word
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Convert 29/30 to a decimal
Answer:
0.97
Step-by-step explanation:
To convert a fraction to a decimal, divide the numerator by the denomiator.
29 ÷ 30 = 0.966666667
= 0.97 (rounded)
hope this helps!
Given the following table of values for the function f(x), determine f^-1(4)
Using the inverse of the function from the table, the value of f⁻¹(4) is 107/3
What is the inverse of a function?The inverse of a function is a new function that "undoes" the original function. It reverses the mapping of inputs and outputs, allowing you to find the original input value when you know the output value.
In this problem, we have to use the table to find the original function which is f(x) and use it to find the inverse of the function;
Taking two points from the table;
m = y₂ - y₁ / x₂ - x₁
m = 0 - (-3) / -9 - (-11)
m = 3 / 20
Using the slope and one point on the table;
y = mx + x
-3 = 3/20(-11) + c
-3 = -1.65 + c
c = -3 + 1.65
c = -1.35
Putting the slope and y - intercept together;
y = 3/20x - 1.35
y = 3/20x - 27/20
f(x) = 3/20x - 27/20
Taking the inverse of the function;
f⁻¹(x) = (20x + 27)/3
To find the value of f⁻¹(4), we just need to substituting the value of x in the function;
f⁻¹(4) = (20(4) + 27)/3
f⁻¹(4) = 107/3
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Howard needs to buy pens and pencils for work. Pens cost $0.40 each and pencils cost 50.25 each. He needs to buy at least 340
pens and pencils combined, while spending no more than $100. If x represents the number of pens and y represents the number
pencils, which TWO statements are correct?
A)
x = 40 and y - 320 is a viable solution
B)
X = 100 and y = 260 is a viable solution
C)
x + y = 340 and 0.40x +0.25y 2 100 models the situation
D
-* + y 2 340 and 0.40x + 0.25y = 100 models the situation
E
x + y2 340 and 0.40% +0.25y 2 100 models the situation
Answer: what is the answer
Step-by-step explanation:
Find Tan a and 10 B. Right each answer as a fraction and as I get decimal rounded to the nearest 10th.
Answer:
\(tanA=\frac{12}{20}\\\\tanB=\frac{20}{12}\)
Step-by-step explanation:
\(tan(theta)=\frac{Opp}{Adj}\)
Unless you want to solve for A and B plug that into inverse calculator.
A = tan^-1 ( 12/20 ) = 31°
A = 31.0°
B = tan^-1 ( 20/12 ) = 59.0°
B = 59.0°
(1)/(5)x +3=2x-24
Anwser please kitten
Answer:
x = 15
Step-by-step explanation:
Hope this helps! :D
Answer: the answer for x is 15.
Step-by-step explanation:
Step 1) Combined multiple terms into a single fraction.
\(\frac{1}{5}\) x + 3 = 2x - 24
\(\frac{1x}{5}\) x + 3 = 2x - 24
Step 2) Multiply by 1
\(\frac{1x}{5}\) + 3 = 2x - 24
\(\frac{x}{5}\) + 3 = 2x - 24
Lastly just do all the steps that narrows down to the answer which is 15. I hope I helped in some way or form.
For z = –3 – 5i, which graph shows z and the product of z · i?
Answer:
A
Step-by-step explanation:
z = -3 - 5i
z (i) = i (-3 - 5 i)
z (i) = -3i - 5i^2
z (i) = -3i - 5 (-1)
z (i) = -3i + 5
z (i) = 5 - 3i
Therefore, letter A is the correct answer.
Ian suffered a loss of 10% when his watch was sold at $90. How much should he have sold his watch if he wanted to make a gain of 20%?
Explanation:
This problem is a simple percent chage problem. The absoluge change in price was $12−$8=$4. Relative to the original price, it was 412, which is 0.3333 or 33.33%.
BRAINLIEST ASAP! LENGTH OF AC?
Answer:
2.33 units
Step-by-step explanation:
\(\tan 25\degree =\frac{AC}{5}\\\\0.46630 = \frac{AC}{5}\\\\AC = 0.46630 \times 5\\AC =2.3315\\AC = 2.33 \: units\)
A total of 50 randomized samples were assigned into 5 different treatment groups in a pharmaceutical science experiment. Each group includes 10 persons (subjects). In order to test if any difference is discernible among these 5 treatments, one-way ANOVA was conducted for the study. Here are data we calculated: Sum of square between group = 232. Sum of square within group = 400.Subject Treatment 1 Treatment 2 Treatment 3 Treatment 4 Treatment 51 2
---
10ANOVA Summary Table
Source Sum of Square Degree of freedom Mean Square F
Between 232
Within 400
Totala. State null hypothesis and alternative hypothesis. b. Calculate the degree of freedom between group, and the degree of freedom within group. c. Mean squares between groups. d. Mean squares within groups.e. F ratiof. If critical value of F is 2.61, should we reject or accept the null hypothesis?g. State your conclusion for this research.
The null hypothesis is that there is no discernible difference among the 5 treatments. The alternative hypothesis is that there is a discernible difference among the 5 treatments
How to calculate the valuesDegree of freedom between groups is nothing but the number of treatments-1 i.e. 5-1=4 and degree of freedom within groups is nothing but total number of subjects- number of treatments i.e. 5*10-5=50-5=45
Mean squares between groups is calculated as follows:
Mean squares between groups= Sum of squares between groups/degrees of freedom between groups= 232/4=58
Mean squares within groups is calculated as follows:
Mean squares within groups= Sum of squares within groups/degrees of freedom within groups= 400/45= 8.89 rounded off to two decimal places
F ratio is calculated as follows:
F= Mean squares between groups/Mean squares within groups
= 58/8.89
= 6.524184477
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The number of flaws per square yard in a type of carpet material varies with mean flaws per square yard and standard deviation flaws per square yard.
a. Without doing any calculations, explain which event is more likely:
randomly selecting a
square yard of material and finding 2 or more flaws
randomly selecting square yards of material and finding an average of or more flaws
b. Explain why you cannot use a Normal distribution to calculate the probability of the first event in part (a).
c. Calculate the probability of the second event in part (a)
a. It is more likely to randomly select square yards of material and finding an average of or more flaws.
b. Normal distribution assumes that the data is continuous and symmetric, but in this case, the number of flaws per square yard is a count data, and it is not symmetric. Therefore, a normal distribution cannot be used to calculate the probability of the first event in part (a).
c. To calculate the probability of the second event in part (a), we would need the mean and standard deviation of the number of flaws per square yard, as well as the specific threshold of "or more flaws" to calculate the area under the curve that is greater than or equal to that threshold. Without that information, I cannot provide an accurate probability calculation.
Carpet Flaw Probability CalculationI determined that it was not possible to calculate the probability of the second event in part (a) without the specific mean and standard deviation of the number of flaws per square yard and the specific threshold of "or more flaws." This is because in order to calculate the probability of an event, you need to know the underlying distribution of the data and the specific cut-off point for the event in question.
In the other part of the question, I stated that it is more likely to randomly select square yards of material and finding an average of or more flaws than it is to randomly select a square yard of material and finding 2 or more flaws.
I came to this conclusion without any calculations because in general, when you are looking for a specific number of flaws (in this case, 2 or more flaws) in a single square yard, it is typically less likely than finding an average of that number of flaws when you look at multiple square yards. This is because the number of flaws per square yard can vary, so even if the average is 2 or more flaws per square yard, it is still possible to find square yards with fewer than 2 flaws.
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Choose the best answer for the question below
*
5 points
Captionless Image
A
B
C
D
Answer:
The answer would be D.
Step-by-step explanation:
Hope this Helps! Have a good day!
Answer:
D is the answer
Step-by-step explanation:
is the answer to the question.
To understand these questions, first look at the way the answers are written out.
Alia questions three students from her class, that might be an answer, but she didn't randomly pick them.
Miles randomly surveys a group of customers at a coffee shop, that might be one, but he might have surveyed a 25 year old instead of a 24 year old, so thats not one.
Carson interviews students working part-time to gather data, he didn't select random students, he interviewed all of them, so that is not a valid option.
Lea speaks with the managers at half of the town's 10 supermarkets, which stock similar items, to find out which breakfast cereal is most popular among the town's residents, that one is not stating that she interviewed, but she interviewed half of the 10, which is five, which can be selected randomly.
So the correct answer is D.
Five friends bake ginger bread and subsequently meet up for a tasting session. Each one gives one of his ginger
breads to each other person. Then each person eats all of the ginger bread they were given. After that the
number of ginger breads halves. How many ginger breads did the five friends have to start with?
Answer:
The five friends had 10 fingers to start with; one had two each
Step-by-step explanation:
The statement says each gave one of not all of his ginger in the toasting session.
The probability a person is infected by a certain flu is 0. 2. If a random sample of 12 people is selected, what is the probability that at least one person will be infected by the flu?.
As a result, there is a 0.887 or 88.7% chance that at least one of a random group of 12 persons will have the flu.
The probability formula is what?Typically, the probability is defined as the ratio of favorable events to all other outcomes in the sample space. Probability of an event P(E) = (Number of favorable outcomes) ÷ (Sample space).
The complement rule can be used to calculate the likelihood that for at least one individual in a representative selection of 12 persons has the flu.
"No one is infected" is the opposite of the statement "at least one individual is infected." The following formulas provide the likelihood that no one has the flu:
P(no one is infected) = (0.8)¹²
This is due to the fact that we multiply the likelihood that each individual in the sample is not infected—which is 0.8 by the number of people in the sample.
The likelihood that for at least one individual is afflicted is equal to the likelihood that nobody is affected:
P(at least one person is infected) = 1 - P(no one is infected)
Substituting the value of P(no one is infected), we get:
P(at least one person is infected) = 1 - (0.8)¹²
Calculating the answer, we obtain:
P(at least one person is infected) = 0.887
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f(x)=x2–5x+7, find f(3)
Answer:
\(f(3) = 1\)Step-by-step explanation:
f(x) = x² - 5x + 7
To find f(3) substitute the value of x that's 3 into f(x) that's replace every x in f (x) by 3
We have
\(f(3) = {3}^{2} - 5(3) + 7 \\ = 9 - 15 + 7 \\ = - 6 + 7\)We have the final answer as
\(f(3) = 1\)Hope this helps you
PLS SOLVE THIS !!<3
Answer:
\(x=7.5\)
Step-by-step explanation:
\(\frac{4x-1}{2}=x+7\\4x-1=2(x+7)\\4x-1=2x+14\\2x-1=14\\2x=15\\x=\frac{15}{2} =7.5\)
Hope this helps!
what the answer please
Using the law of detachment and the law of syllogism,
We can conclude that Sally is too heavy for the bridge, but we cannot conclude that she can cross the bridge.
We have,
Using the law of detachment, we can conclude from statements 1 and statement 3:
If something weighs more than 2,000 pounds, then it weighs more than Jill's car. (Statement 1)
Sally the elephant weighs 2,325 pounds. (Statement 3)
Therefore, Sally weighs more than Jill's car.
Using the law of syllogism, we can then use the conclusion above and statement 2 to conclude:
Sally weighs more than Jill's car.
If something weighs more than Jill's car, then it is too heavy for the bridge. (Statement 2)
Therefore, Sally is too heavy for the bridge.
Therefore,
We can conclude that Sally is too heavy for the bridge, but we cannot conclude that she can cross the bridge.
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Help picture below problem 8
Answer:
Together they equal 180 l so you need to do 180-128 which equals 52. The answer is <D measures 52
Step-by-step explanation:
12.39- (2.5• 3.9) what is the value of the expression? how do I solve this? what's the answer ?
We have the expression:
\(\begin{gathered} 12.39-(2.5\cdot3.9) \\ 12.39-9.75 \\ \text{2}.64 \end{gathered}\)We start by solving the product first and then the substraction.
Answer: 2.64
What are the factors of 36xyz?
Answer:
1
Step-by-step explanation:
6863 in expanded form
Answer:
Expanded Notation Form:
6,863 =
6,000
+ 800
+ 60
+ 3
Expanded Factors Form:
6,863 =
6 × 1,000
+ 8 × 100
+ 6 × 10
+ 3 × 1
Expanded Exponential Form:
6,863 =
6 × 10^3
+ 8 × 10^2
+ 6 × 10^1
+ 3 × 10^0
Answer:
Six thousand eight hundred sixty three
Step-by-step explanation:
A survey asked students to name their favorite school uniform color. The results are shown in the circle graph. Twelve students chose black. How many students were surveyed?
The number of students surveyed is obtained with the following equation:
nP/100 = 12.
In which:
n is the number of students.P is the percentage that choose black.How to obtain the number of students surveyed?The number of students surveyed is obtained applying the proportions in the context of the problem.
The circle graph gives the percentage P of students that choose black, which is equivalent to 12 students.
Hence the number n of students is obtained solving the following equation:
nP/100 = 12.
For example, if the percentage is of 20%, we have that:
0.2P = 12
P = 12/0.2
P = 60 students.
Missing InformationThe problem is incomplete, hence the general procedure to obtain the number of students was presented.
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Which of the following systems of inequalities has point D as a solution?
Answer:
f(x) \(\leq\) 3x + 4
g(x) ≥ -1/2x - 5
Step-by-step explanation:
Point D is below f(x) and above g(x)
Helping in the name of Jesus.
Can some one help with this problem
Step-by-step explanation:
Area of the trapezoid = height x average of bases
area = 4 x (8+13)/2) = 42 in^2
Area of triangle = 1/2 base * height = 1/2 (13-8) * 4 = 10 in^2
Which expression is equivalent to the expression 6(-2n + 7) - 3(5n + 9)?
Never mind i got it!
Answer:
OOk
Step-by-step explanation: