Which of the following expressions could be used to represent "the difference between -12 and 10"?
Answers
Answer:
-2
Step-by-step explanation:
I took the test :)
Answer:
-12-10
Step-by-step explanation:
difference means subtraction so it is saying subtract -12 and 10
Related Questions
A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n independent trials of the experiment.
nequals=7
pequals=0.65 xequals=6
(Do not round until the final answer. Then round to four decimal places as needed.)
Answers
The probability of 6 successes in 7 independent trials with a probability of success 0.65 is 0.3052.
Using the binomial probability formula, the probability of x successes in n independent trials with a probability of success p can be calculated as:
P(x) = (n choose x) * p^x * (1-p)^(n-x)
where "n choose x" represents the number of ways to choose x items from a set of n items, and is calculated as:
(n choose x) = n! / (x! * (n-x)!)
So, for the given parameters nequals=7, pequals=0.65, xequals=6, we have:
P(6) = (7 choose 6) * 0.65^6 * (1-0.65)^(7-6)
= 7 * 0.65^6 * 0.35^1
= 0.3052
Therefore, the probability of 6 successes in 7 independent trials with a probability of success 0.65 is 0.3052.
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What is the probability that either event will occur?
Now, find the probability of event A and event B.
A
B
6
6
20
20
P(A and B) = [?]
Answers
The probability of event A and event B is 6.
Given that, P(A)=6, P(B)=20 and P(A∩B)=6.
P(A/B) Formula is given as, P(A/B) = P(A∩B) / P(B), where, P(A) is probability of event A happening, P(B) is the probability of event B.
P(A/B) = P(A∩B) / P(B) = 6/20 = 3/10
We know that, P(A and B)=P(A/B)×P(B)
= 3/10 × 20
= 3×2
= 6
Therefore, the probability of event A and event B is 6.
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select the appropriate reagents for the transformation at −78 °c.
Answers
For the transformation at -78 °C, appropriate reagents include lithium aluminum hydride (LiAlH4) and diethyl ether.
What reagents are suitable for -78 °C transformations?At -78 °C, certain chemical reactions require the use of specific reagents to achieve the desired transformation. One commonly used reagent is lithium aluminum hydride (LiAlH4), which acts as a strong reducing agent. It is capable of reducing various functional groups, such as carbonyl compounds, to their corresponding alcohols.
Diethyl ether is typically employed as a solvent to facilitate the reaction and ensure efficient mixing of the reactants. Researchers often utilize this low temperature for reactions involving sensitive or reactive intermediates, as it helps control the reaction and prevent unwanted side reactions.
The use of LiAlH4 and diethyl ether provides a reliable combination for achieving the desired transformation at this temperature, enabling chemists to manipulate and modify compounds in a controlled manner.
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TRUE / FALSE. 1:24,000 is an example of a verbal statement. group of answer choices
Answers
Answer:
False.
Step-by-step explanation:
The statement "1:24,000" is not an example of a verbal statement. It is a numerical ratio or scale commonly used in cartography and map scales. Verbal statements typically involve spoken or written language rather than numerical representations. :)
HELP ME ASAP A die is rolled 8 times and you get 4, three times. What is the experimental probability of rolling a four?
Answers
Answer:
1/2 or 50%--------------------
The experimental probability is the ratio of actual outcomes and total outcomes:
P(Ex) = 4/8 = 1/2 or 50%Which of the following congruency statements is correct? Yzx = bcd, yzx = dcb, zxy =dcb, yxz = cdb
Answers
Answer:c
Step-by-step explanation:
Answer: c : ZXY=DCB
Step-by-step explanation: i took the quiz
6 is added to the
product of 7 and a number.
Answers
The equation model of the given statement in question is 6 + 7× x.
What are equation models and arithmetic?The model of equation is defined as the model of the given situation in the form of an equation using constants and variables.
In math, it deals with numbers of operations given according to the statements. The four major arithmetic operators are, addition, subtraction, multiplication, and division.
Given that;
6 is added to product of a number and 7
Now,
Let, the number multiplied by 7 be x,
=7*x
6 is added to the product;
= 6 + 7 × x
Therefore, the equation of model will be given as 6 + 7 × x;
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Please help hurry!!!!! This is due in a couple of minutes!!!!
Answers
Answer:
200 in.
Step-by-step explanation:
1250/75=5000/300=50/3 simplification
50*12=600 conversion to inches
600/3=200 simplification
The inductive step of an inductive proof shows that for. k≥0, if Στo 2 = 24+1 – 1, then Σ+§ 2 = 2+2 – 1. k+1 In which step of the proof is the inductive hypothesis used? Σ+ 2 = Σ 2 + 2+1 - (Step 1) j=0 = (2k+11) +2k+1 (Step 2) = 2.2k+1 -1 (Step 3) = 2k+2 -1 (Step 4) Step 4 Step 3 Step 2 Step 1
Answers
The inductive hypothesis is used in Step 2 of the proof.
In Step 1, we have the equation Στo² = 2k + 1 - 1, which is the assumption made for the base case of the induction.
In Step 2, we use the inductive hypothesis by substituting the equation from Step 1 into the expression Στ² + 2j + 1. This gives us (2k + 1 - 1) + 2k + 1.
In Step 3, we simplify the expression from Step 2 to obtain 2(2k + 1) - 1.
In Step 4, we further simplify the expression from Step 3 to get 2k + 2 - 1, which is the desired result Σ(τ + 1)² = 2(k + 1) - 1.
Therefore, the inductive hypothesis is used in Step 2 of the proof.
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Thomas bought 120 whistles, 168 yo-yos and 192 tops. He packed an equal amount of items in each bag. A) What is the maximum number of bag that he can get?
Answers
Thomas can pack the items into a maximum of 20 bags, with each bag containing 24 items after calculated with greatest common divisor.
To find the maximum number of bags Thomas can pack, we need to find the greatest common divisor (GCD) of 120, 168, and 192. The GCD will represent the maximum number of items that can be packed into each bag.
To find the GCD, we can use the Euclidean algorithm. First, we find the GCD of 120 and 168:
168 = 1 * 120 + 48
120 = 2 * 48 + 24
48 = 2 * 24 + 0
Therefore, the GCD of 120 and 168 is 24.
Next, we find the GCD of 24 and 192:192 = 8 * 24 + 0
Therefore, the GCD of 120, 168, and 192 is 24.
So, Thomas can pack 24 items into each bag. To find the maximum number of bags he can get, we divide the total number of items by 24:
Total number of items = 120 + 168 + 192 = 480
Number of bags = 480 / 24 = 20
Therefore, Thomas can get a maximum of 20 bags.
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Which statement is correct?
Answers
Answer:
The domain of the graph is all real numbers less than or equal to 0.
Hope this helps! :D
The declining-balance method of depreciation is an accounting method businesses use to deduct most of the cost of new equipment during the first few years of purchase. Unlike other methods, the declining-balance formula does not consider salvage value. For the value of a crane, the function
V(t)=400000(1−0.25)^t
where V is value and t is time in years, can be used to find the value of the crane for the first 9 years of use.
a. What is the value if the crane after 5 years and 6 months?
The value of the crane will be $ _____
b. State the domain of the function_____ ≤t≤ ______
c. State the range of this function_______ ≤V(t)≤ ______
d. After how many years will the crane be worth only $85000?
After______ years, the crane will only be worth $85000.
Answers
a. The value of the crane will be $118,252.50.
b. The domain of the function is 0 ≤ t ≤ 9.
c. The range of the function is 44,697.42 ≤ V(t) ≤ 400,000.
d. After 6.92 years, the crane will only be worth $85,000.
a. To find the value of the crane after 5 years and 6 months, plug in t = 5.5 into the function: V(5.5) = 400000(1 - 0.25)^(5.5).
The value of the crane will be $118,252.50.
b. The domain of the function is 0 ≤ t ≤ 9 since it represents the first 9 years of use.
c. The range of this function can be determined by finding the minimum and maximum values of V(t). The minimum value occurs at t = 9, and the maximum value occurs at t = 0.
V(0) = 400000(1 - 0.25)^0 = 400000
V(9) = 400000(1 - 0.25)^9 ≈ 44,697.42
So, the range of the function is 44,697.42 ≤ V(t) ≤ 400,000.
d. To find the number of years it takes for the crane to be worth $85,000, set V(t) = 85,000 and solve for t:
85,000 = 400000(1 - 0.25)^t
Divide both sides by 400,000:
0.2125 = (1 - 0.25)^t
Take the natural logarithm of both sides and solve for t:
t = ln(0.2125)/ln(1 - 0.25) ≈ 6.92
After approximately 6.92 years, the crane will only be worth $85,000.
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a. To find the value of the crane after 5 years and 6 months, we need to plug t = 5.5 (since 6 months is half a year) into the function V(t) = 400000(1 - 0.25)^t.
V(5.5) = 400000(1 - 0.25)^5.5 ≈ $103,602.56
The value of the crane after 5 years and 6 months will be approximately $103,602.56.
b. The domain of the function represents the time in years, t. Since the function is valid for the first 9 years, the domain is:
0 ≤ t ≤ 9
c. To find the range of the function, we need to evaluate the minimum and maximum values of V(t). The minimum value occurs at t = 9, while the maximum value occurs at t = 0.
V(0) = 400000(1 - 0.25)^0 = 400000
V(9) = 400000(1 - 0.25)^9 ≈ $18,366.21
Therefore, the range of the function is:
18,366.21 ≤ V(t) ≤ 400,000
d. To find after how many years the crane will be worth only $85,000, we need to solve the equation V(t) = 85,000 for t.
85,000 = 400000(1 - 0.25)^t
To solve for t, we can use logarithms:
t = log(1 - 0.25)[(85,000 / 400,000)] ≈ 5.077
After approximately 5.077 years, the crane will only be worth $85,000.What is Deprication expense: Depreciation expense is added to net income in a statement of cash flowsprepared using the indirect method. Depreciation expense is allocated portion of cost shown on the income statement that reduces the company's net income. It is considered as a non cash expense, hence it is added to the net income in a statement of cash flows.
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7. The graph of a polynomial function is shown.
a. Is the degree of the polynomial odd or even? Explain how you know.
b. What is the constant term of the polynomial?
Answers
9514 1404 393
Answer:
even-4Step-by-step explanation:
When the end behavior is the same sign on the left and the right, the degree is even. This polynomial is of even degree.
The y-intercept is the constant term: -4. (All the other terms are zero when x=0.)
Find the center vertices and foci of the ellipse with equation 2x^3+8y^2=16
Answers
Answer:
Step-by-step explanation:
First of all, you have a typo. But that's ok, we can work around it. The equation NOT yet in standard form for an ellipse should be:
\(2x^2+8y^2=16\)
Putting it into standard form requires that the right side of the equation equals 1. That means that we need to divide everything by 16 to accomplish that. When we do that, we will get the standard form:
\(\frac{x^2}{8}+\frac{y^2}{2}=1\)
The general form is either
\(\frac{(x-h)^2}{a^2}+\frac{(y-k)^2}{b^2}=1\) or
\(\frac{(x-h)^2}{b^2}+\frac{(y-k)^2}{a^2}=1\)
where a is ALWAYS bigger than b. So if the bigger denominator is under the x numerator, this is an ellipse that is elongated horizontally. If the larger denominator is under the y numerator, then this is an ellipse that is elongated vertically. As you can see from our standard ellipse equation, the 8 is under the x numerator, so this is a horizontally elongated ellipse.
If \(a^2=8,\) then \(a=\sqrt{8}\) which is approximately 2.83 units.
If \(b^2=2,\) then \(b=\sqrt{2}\) which is approximately 1.41 units.
Since the ellipse is elongated horizontally, the a value starts at the center of the ellipse and goes 2.83 units to the right and left of the center; the b value starts at the center of the ellipse and goes 1.41 units both up and down from the center. But what's the center?
In the standard form above involving the h and the k in the numerators, the h and k indicate the coordinates of the center. h is like the x coordinate and k is like the y coordinate. Since our ellipse does not have \(c^2=8-2\)a constant in a set of parenthesis for either the x or the y term, the center is at (0, 0). From the center then, we go go both right and left to (2.83, 0) and (-2.83, 0) for the vertices of the ellipse. The co-vertices would be (0, 1.41) and (0, -1.41).
The foci have the formula (h + c, k) for the focal point to the right of the center and (h - c, k) for the focal point to the left of the center. But how do we find c?
\(c^2=a^2-b^2\)
We already know that \(a^2=8\) and \(b^2=2,\) so
\(c^2=8-2\) and
\(c=\sqrt{6}\)
That means that the foci have the coordinates \((\sqrt{6},0)\) and \((-\sqrt{6},0)\)
and you're done!!
In ΔLMN, LN‾LN is extended through point N to point O, m∠NLM=(x−4) m∠NLM=(x−4), m∠MNO=(4x−17) m∠MNO=(4x−17),and m∠LMN=(x+9) m∠LMN=(x+9) What is the value ofx?
Answers
Answer:
x = 11
Step-by-step explanation:
Here we want to calculate the value of x
From the information we are given, we have two interior angles which add up to give an exterior angle
In this case;
4x - 17 = x - 4 + x + 9
4x - 17 = 2x + 5
4x-2x = 5 + 17
2x = 22
x = 22/2
x = 11
Carrie had $60. as an allowance for the week. She spent 2/5 of it on snacks, and 1/4 on stickets and saved the remainder. How much money did she save?
Answers
Answer:
$ 21
Step-by-step explanation:
Money spent = (2/5) * 60 + (1/4) * 60
= 2*12 + 1*15
= 24 + 15
= $ 39
Money save = 60 - 39 = $ 21
What are not changed after a rotation
Answers
Answer: b
Step-by-step explanation:
5) Find the coordinates of the point that is of the way from A to B.
Given: A(-6, -7) and B(4, 9).
(Show all work)
LEAVE ANSWERS AS SIMPLIFIED FRACTIONS-NO DECIMAL
Answers
The coordinate of the point that is 2/5 of the way from A to B for the given points is (3/2, -3/5).
The coordinate of the point can be obtained thus :
Calculate the distance between A and B.√((-6 - 4)² + (-7 - 9)²) = 18.867962264113206
Multiply the distance by 2/5.2/5 * 18.867962264113206 = 7.547174916044816
Add this value to the x-coordinate of A.
-6 + 7.54 = 1.54 = 1.5 = 3/2
Add this value to the y-coordinate of A.
-7 + 7.54 = -0.5 = -3/5
Therefore, the required coordinates are (3/2, -3/5)
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I sell 1 piece of wood for £1000, however the price is now increased by 5000% how much will I make from 64 pieces of wood?
Answers
Answer: £3200000
Step-by-step explanation:
£1000 is 100%, so 5000% is x50 (5000/100) of £1000 which is £50000. Then 64x50000 is 3 200 000. Therefore you will make £3200000 from 64 piece of wood
How would you write 0.1 bar as a fraction
Answers
Answer:
1/10
Step-by-step explanation:
Divide 1 by 0.1, which equals 10
10 becomes your denominator, and 1 is the numerator
Since 1/10 = 0.1*10 = 1
Build Perseverance Find the value of x in the figure at the right. Round to the nearest tenth.
Answers
7.2 is the unknown value of x from the triangle.
Solving a missing side of a triangleThe given diagram is a triangle. We need to determine the measure of the value 'x'.
Using the trigonometry identity'
tan theta = opposite/adjacent
tan 50 = x/6
Cross multiply to have:
x = 6tan50
x = 6(1.1918)
x = 7.1505
Hence the value of x to the nearest tenth is 7.2
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Help me plzzz I don’t understand this
Answers
I need help asap I will give 30 points!!!
Answers
Answer: A. 2x+2y
Step-by-step explanation:
Answer:
its d
Step-by-step explanation:
Which measure of center is the sum of a data set divided by the number of values it contains?
Select the correct response:
O sample mean
O standard mean
O mode
O median
Answers
The measure of center that is the sum of a data set divided by the number of values it contains is called sample mean.
Sample mean is calculated by adding up all the values in the sample and then dividing the sum by the number of values in the sample. It is a measure of central tendency, which describes a typical value of the dataset. It is also known as the arithmetic mean or simply the mean.
The mean can be used to summarize data sets for comparison. It is useful in inferential statistics to estimate the population mean from the sample data. It is an important measure that is frequently used in many areas such as research, business, and finance.
In summary, the measure of center that is the sum of a data set divided by the number of values it contains is sample mean, and it is calculated by adding up all the values in the sample and then dividing the sum by the number of values in the sample.
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3y=4y 3 squared please my math homework is due next class
Answers
Answer:
y=0
Step-by-step explanation:
By subtracting 4y from both side you end up with:
-1y = 3^2
By simplifying things out you get:
-y = 9
Flip the signs to get:
y = -9
A pole that is 3.5 tall casts a shadow that is 1.77 long. At the same time, a nearby building casts a shadow that is 43.5 long. How tall is the building? Round your answer to the nearest meter.
Answers
The height of the building is approximately 79.22 meters, rounded to the nearest meter.
To calculate the angle of elevation, we use the tangent function, which is defined as the ratio of the opposite side to the adjacent side of a right triangle.
We know that the pole is 3.5 meters tall, and its shadow is 1.77 meters long. We can use this information to calculate the angle of elevation of the sun's rays, which is the angle formed between the horizontal line and the line of sight from the top of the pole to the sun.
In this case, the opposite side is the height of the pole (3.5 meters), and the adjacent side is the length of the shadow (1.77 meters). Therefore, we have:
tan(angle of elevation) = opposite/adjacent = 3.5/1.77
Using a calculator, we can find that the angle of elevation is approximately 63.24 degrees.
Now, we can use this angle to find out the height of the building. We know that the shadow of the building is 43.5 meters long, and we want to find its height, which is the opposite side of the right triangle formed by the angle of elevation and the length of the shadow. Therefore, we have:
tan(63.24 degrees) = opposite/43.5
Solving for the opposite, we get:
opposite = 43.5 * tan(63.24 degrees) = 79.22 meters
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At LaGuardia Airport for a certain nightly flight, the probability that it will rain is 0.11 and the probability that the flight will be delayed is 0.14. The probability that it will not rain and the flight will leave on time is 0.76. What is the probability that the flight would be delayed when it is raining? Round your answer to the nearest thousandth.
Answers
Since probabilities cannot be negative, we can conclude that the given probabilities are inconsistent or there might be an error in the information provided. Please verify the values and provide correct probabilities so that we can accurately calculate P(B|A), the probability of the flight being delayed when it is raining.
Let's denote the events as follows:
A: It will rain
B: The flight will be delayed
We are given the following probabilities:
P(A) = 0.11 (probability of rain)
P(B) = 0.14 (probability of flight delay)
P(A'∩B') = 0.76 (probability of no rain and on-time departure)
We can use the probability formula to calculate the probability of the flight being delayed when it is raining, P(B|A), which is the probability of B given A.
We know that:
P(B|A) = P(A∩B) / P(A)
To find P(A∩B), we can use the formula:
P(A∩B) = P(A) - P(A'∩B')
Substituting the given values:
P(A∩B) = P(A) - P(A'∩B')
P(A∩B) = 0.11 - 0.76
P(A∩B) = -0.65
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Which postulate proves the two
triangles are congruent?
A. HL
B. SSA
C. ASA
D. none
Answers
Answer:
the answer is b and i need atleast twenty words so it is asa because the middle and side and the right angle
Answer: The answer A: HL
Hope this helps
Jason ordered 239,021 pound of flour to be used in his 25 bakeries. The company showed up with 451,202 pounds. How many extra pounds of flur were delivered?
Answers
Answer:
It's simply just subtract the these two numbers
451,202
- 239,021
= 212,181
Hope u doubt is cleared
.Do the methods of agreement and difference show that factors are necessary or sufficient conditions?
No, neither method shows that factors are necessary or sufficient.
Both methods show that they are necessary.
Agreement shows that they are necessary, difference that they are sufficient.
Both methods show that they are sufficient.
Agreement shows that they are sufficient, difference that they are necessary.
Answers
The correct answer is: No, neither method shows that factors are necessary or sufficient.
The methods of agreement and difference are both used in causal inference to analyze the relationship between factors and outcomes. However, neither method alone can determine whether factors are necessary or sufficient conditions.
The method of agreement examines cases where the outcome occurs and compares the presence or absence of different factors. If a factor is consistently present in all cases where the outcome occurs, it suggests that the factor may be related to the outcome. However, this method does not provide information about whether the factor is necessary or sufficient.
On the other hand, the method of difference compares cases where the outcome occurs and cases where it does not, identifying factors that are present in the former but absent in the latter. This method helps identify factors that are associated with the outcome, but it also does not establish whether the factors are necessary or sufficient conditions.
To determine whether a factor is necessary or sufficient, additional evidence and reasoning are required. Additional experiments, data analysis, or theoretical considerations are needed to establish the causal relationship and determine the nature of the factor's influence on the outcome. Hence, "No, neither method shows that factors are necessary or sufficient" is the correct option.
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