here’s another one broski

Answer:

-9.504

Step-by-step explanation:

First you do 1.76 times 1.5 which is 2.64. Then you do 2.64 times negative 3.6 which would be -9.504.

Answer:

Step-by-step explanation:

brooooooooo wtfffffffff

Answer:

C. 7.5m

Step-by-step explanation:

\(8m \: up= 3m \: above \\ 12m \: up = x \: above\)

Cross multiply

\(8x = 12 \times 3 \\ 8x = 36\)

Divide both sides of the equation by 8

\( \frac{8x}{8} = \frac{36}{8} \\ x = 4.5 \\ 3 + 4.5 = 7.5m\)

Answer:

m=36×20

Step-by-step explanation:

A hybrid SUV uses 36 miles per gallon in the city.

The equation that could be used to find how many miles a hybrid SUV can travel in the city on 20 gallons of gas is m=36×20.

The length of each piece of wood is 0.725 feet.

We are given that the Length= 3.5feet

Now,

This is a word problem that can be solved by using algebra and arithmetic.

Part A: Let x be the length of each of the four pieces of wood he cut. Then, according to the problem, we have:

4x + 0.6 = 3.5

This is the equation that could be used to determine the length of each piece of wood.

Part B: We know the equation from part A is correct because it represents the total length of the wood before and after cutting. The left side of the equation is the sum of the lengths of the four pieces of wood and the leftover piece of wood. The right side of the equation is the original length of the wood. Since cutting does not change the total length of the wood, these two sides must be equal.

Part C: To solve the equation from part A, we need to isolate x by using inverse operations. We get:

4x + 0.6 = 3.5 4x = 3.5 - 0.6 (subtract 0.6 from both sides) 4x = 2.9 x = 2.9/4 (divide both sides by 4) x = 0.725

Therefore, by the algebra the answer will be 0.725 feet.

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Answer:

Japan = $17.95

Switzerland = $13.41

Step-by-step explanation:

Let x be the cost of a Japanese ticket and y be the cost of a Switzerland ticket

We can set up a system of equations:

3x+2y=80.67

2x+3y=76.13

We can multiply the first equation by 2 and the second equation by 3

6x+4y=161.34

6x+9y=228.39

Subtract the first equation from the second equation to remove x

5y=67.05

Divide 5 from both sides

y=13.41

Plug this back into any of the equations

2x+3(13.41)=76.13

2x+40.23=76.13

2x=35.9

x=17.95

Japan = $17.95

Switzerland = $13.41

Answer: -11s & -14t

Step-by-step explanation:

Answer:

-11s - 14t

Step-by-step explanation:

-6s - 11t - 5s - 3t

= -11s - 14t

To determine the number of offspring with skin darker than their parents, we need more information about the specific genetic inheritance patterns and traits involved.

The answer depends on factors such as the dominance or recessiveness of genes controlling skin color, the genotype of the parents, and the specific combination of alleles passed on to the offspring.

Without additional information, it is not possible to provide an accurate count of the number of offspring with darker skin. Genetic inheritance is a complex process that involves multiple genes and interactions, making it necessary to consider specific genetic traits and their inheritance patterns to determine the outcome.

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As per the given Ratio difference between the amount of money spent and the amount of money saved in a week is $2.

A ratio is an ordered pair of numbers a and b, denoted by the symbol a / b, where b does not equal zero. A proportion is an equation that sets two ratios equal to each other.

The ratio formula can be used to represent a ratio as a fraction. For any two quantities, say a and b, the ratio formula is a:b = a/b. Because a and b are separate amounts for two portions, the total quantity is given as (a + b).

et 5x be the money he spends and 4x be the amount he saves

therefore, 5x+4x= 18

9x= 18

x= 18/9= 2

Tom spends, 5×2 = $10

and he saves, 4×2= $8

Difference, = $10-$8= $2

Therefore, as per the given ratio in the question difference between the amount of money spent and the amount of money saved in a week is $2.

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Tom receives $18 from his father in a week. The ratio of the amount of

the money he spends to the amount of money he saves in a week is 5:4

What is the difference between the amount of money spent and

amount of money saved in a week?

The equation for split times is 4x= 198.608  and the value of x is 49.652

What is the solution to an equation?

In order to make the equation's equality true, the unknown variables must be given values as a solution. In other words, the definition of a solution is a value or set of values (one for each unknown) that, when used as a replacement for the unknowns, transforms the equation into equality.

Let x be the split time

all 4 of the split times were the same.

4x= 198.608

=> x= 198.608/4 = 49.652

The equation for split times is 4x= 198.608  and the value of x is 49.652

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Answer:

b, c, d (please mark me brainliest)

Step-by-step explanation:

No, The resulting prediction would be more or less reliable than your original one.

Importance:

Prediction is a forecast or a prophecy. An example of a prediction is a psychic telling a couple they will have a child soon, before they know the woman is pregnant. A statement of what will happen in the future.

Predictions provide a reference point for the scientist. If predictions are confirmed, the scientist has supported the hypothesis. If the predictions are not supported, the hypothesis is falsified. Either way, the scientist has increased knowledge of the process being studied.

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Answer:

Maybe -10

Hope this helps :)

Trica's survey of students in her computer class about their computer usage may not support a valid inference regarding the time spent on computers by students in her entire school.

The survey results may lack validity due to several reasons. First, the sample size may be limited to only Trica's computer class, which could introduce selection bias and make it unrepresentative of the entire school population. Representativeness is crucial for generalizing the findings to the broader student body accurately.

Second, the self-reported nature of the survey introduces the potential for self-reporting bias, where students may provide inaccurate or exaggerated information about their computer usage.

This could lead to unreliable results and inaccurate inferences. Additionally, the survey design and measurement techniques might not be rigorous enough to capture a comprehensive understanding of computer usage, lacking standardization and reliable measurement tools.

To obtain valid inferences, it would be necessary to employ random sampling techniques to ensure representativeness, include students from various classes or grades, verify the accuracy of reported data through cross-referencing or observation, and utilize validated measurement instruments.

By addressing these limitations, Trica can enhance the validity of the survey results and make more robust inferences about the time spent on computers by students in her school.

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Any element y in (XuY) U Z is also in Xu(YuZ). The equality (An B)U C = An(BU C) does not hold in this case. Hence, the statement is false.

To prove the equality Xu(YuZ) = (XuY) U Z using an element argument, we need to show that any element x in the left-hand side set is also in the right-hand side set, and vice versa.

First, let's consider an arbitrary element x in Xu(YuZ). This means that x is an element of X and is also an element of either Y or Z (or both).

Case 1: If x is an element of Y, then x is also in (XuY), and hence it is in (XuY) U Z.

Case 2: If x is an element of Z, then x is in (XuY) U Z since Z is included in the union.

Case 3: If x is an element of both Y and Z, then it is in (XuY) U Z by the same logic as in cases 1 and 2.

Therefore, any element x in Xu(YuZ) is also in (XuY) U Z.

Next, let's consider an arbitrary element y in (XuY) U Z. This means that y is either in (XuY) or in Z.

Case 1: If y is an element of (XuY), then it must be in either X or Y (or both). In either case, it is also in Xu(YuZ).

Case 2: If y is an element of Z, then it is in Xu(YuZ) since Z is included in the union.

Therefore, any element y in (XuY) U Z is also in Xu(YuZ).

By proving that every element in Xu(YuZ) is in (XuY) U Z and vice versa, we have established the equality Xu(YuZ) = (XuY) U Z.

11. The statement (An B)U C = An(BU C) is false. A counterexample can be provided to show its invalidity.

To disprove the statement, we need to find sets A, B, and C for which the equality does not hold.

Let's consider the following counterexample:

A = {1, 2}

B = {2, 3}

C = {3, 4}

Using the left-hand side of the equation, we have:

(An B)U C = ({1, 2}n{2, 3})U{3, 4}  

= {2}U{3, 4}

= {2, 3, 4}

Using the right-hand side of the equation, we have:  

An(BU C) = {1, 2}n({2, 3}U{3, 4})

= {1, 2}n{2, 3, 4}  

= {2}

As we can see, {2, 3, 4} is not equal to {2}, so the equality (An B)U C = An(BU C) does not hold in this case. Hence, the statement is false.  

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The equation x² y² = 4 corresponds to a hyperbola when only considering x and y as variables. When considering x, y, and z as variables, the equation corresponds to a two-sheeted hyperboloid.

a) When only x and y are the variables being considered, the equation x² y² = 4 corresponds to a circle in the xy-plane. The circle has a center at the origin (0,0) and a radius of 2.

b) If x, y, and z are the only variables being considered, the equation x² y² = 4 still represents a circle in the xy-plane, but it becomes a cylinder along the z-axis. This cylinder has a center on the z-axis and a radius of 2, extending infinitely along the z-axis.

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The possible amounts of time for which the chemistry club could rent the meeting room are any values of t that are less than 8

To find the possible amounts of time for which the chemistry club can rent the meeting room, we need to set up an inequality. Let t be the number of hours the meeting room is rented. Then, the total cost C (in dollars) can be expressed as:

C = 44 + 9.30t

The chemistry club wants to spend less than $118.40, so we can write:

44 + 9.30t < 118.40

Subtracting 44 from both sides, we get:

9.30t < 74.40

Dividing both sides by 9.30, we get:

t < 8

Therefore, the possible amounts of time for which the chemistry club could rent the meeting room are any values of t that are less than 8. We can write this as an inequality:

t < 8

So, for example, the chemistry club could rent the meeting room for 2 hours (which would cost 44 + 9.30(2) = $62.60), or they could rent it for 6 hours (which would cost 44 + 9.30(6) = $92.40). As long as they rent it for less than 8 hours, they will spend less than $118.40.

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Answer:

Step-by-step explanation:

Multiplying by 0.21 is the same as decreasing by 21%?​

Answer:

21%

Step-by-step explanation:

the decimal for a percents is moved two places anytime it is multiplied.

Answer:

300

Step-by-step explanation:

\(5\% \: of \: x = 15 \\ x = 1500 \div 5 = 300\)

Answer:

Solution,

\( {x}^{2} + 5x - 36 \\ = {x}^{2} + (9 - 4)x - 36 \\ = {x}^{2} + 9x - 4x - 36 \\ = x(x + 9) - 4(x + 9) \\ = (x + 9)(x - 4)\)

hope this helps...

Good luck on your assignment..

The given equation 6x+2y=13 is a linear equation in two variables. In this equation, x and y are variables while 6 and 2 are their respective coefficients, and 13 is a constant term. The equation can be represented as a straight line on a graph. The slope of this line is -3, and it intersects the y-axis at the point (0, 13/2).

In this equation, if we substitute x=0, then y=13/2, and if we substitute y=0, then x=13/6. These are the two points that the line passes through the x and y-axis.

A linear equation is a polynomial equation that is of the first degree, meaning the variables in the equation are not raised to any powers other than one. This equation is in the standard form where the variables are in the first degree. 6x + 2y = 13 is the form of the given linear equation. x and y are the two variables, and 6 and 2 are their respective coefficients. The equation can be represented as a straight line on a graph. The slope-intercept form of this equation is y = -3x + 13/2. The equation is also in standard form.

When x = 0, the equation becomes 2y = 13. This means that the point of intersection is (0, 13/2) when y = 0, the equation becomes 6x = 13, and the point of intersection is (13/6, 0). The slope of the line is -3. When x increases by 1, y decreases by 3.

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Answer:

\(x=-1/2\)

Step-by-step explanation:

\(4 x - 6 = 10 x - 3\)

\(4 x -10x= - 3+6\)

\(-6x=3\)

\(-6x/6=-3/6\)

\(x=-1/2\)

Answer:

\(x = - \frac{1}{2} \)

Step-by-step explanation:

\(4x - 6 = 10x - 3 \\ - 6 + 3 = 10x - 4x \\ - 3 = 6x \\ \frac{ - 3}{6} = \frac{6x}{6} \\ x = - \frac{1}{2} \)

To calculate the probabilities, we need to use the concept of binomial probability.

For a fair coin being tossed 5 times:

(a) Probability of getting five heads:

The probability of getting a head in a single toss is 1/2.

Since each toss is independent, we multiply the probabilities together.

P(Head) = 1/2

P(Tails) = 1/2

P(Five Heads) = P(Head) * P(Head) * P(Head) * P(Head) * P(Head) = \((1/2)^5\) = 1/32 ≈ 0.03125

So, the probability of obtaining five heads is approximately 0.03125 or 3.125%.

(b) Probability of getting four heads:

There are five possible positions for the four heads.

P(Four Heads) = (5C4) * P(Head) * P(Head) * P(Head) * P(Head) * P(Tails) = 5 * \((1/2)^4\) * (1/2) = 5/32 ≈ 0.15625

So, the probability of obtaining four heads is approximately 0.15625 or 15.625%.

(c) Probability of getting one head:

There are five possible positions for the one head.

P(One Head) = (5C1) * P(Head) * P(Tails) * P(Tails) * P(Tails) * P(Tails) = 5 * (1/2) * \((1/2)^4\) = 5/32 ≈ 0.15625

So, the probability of obtaining one head is approximately 0.15625 or 15.625%.

For a fair die being thrown eight times:

(a) Probability of a 6 occurring six times:

The probability of rolling a 6 on a fair die is 1/6.

Since each roll is independent, we multiply the probabilities together.

P(6) = 1/6

P(Not 6) = 1 - P(6) = 5/6

P(Six 6s) = P(6) * P(6) * P(6) * P(6) * P(6) * P(6) * P(Not 6) * P(Not 6) = \((1/6)^6 * (5/6)^2\) ≈ 0.000021433

So, the probability of rolling a 6 six times is approximately 0.000021433 or 0.0021433%.

(b) Probability of a 6 never happening:

P(No 6) = P(Not 6) * P(Not 6) * P(Not 6) * P(Not 6) * P(Not 6) * P(Not 6) * P(Not 6) * P(Not 6) = \((5/6)^8\) ≈ 0.23256

So, the probability of not rolling a 6 at all is approximately 0.23256 or 23.256%.

(c) Probability of an odd number of 6s:

To have an odd number of 6s, we can either have 1, 3, 5, or 7 6s.

P(Odd 6s) = P(One 6) + P(Three 6s) + P(Five 6s) + P(Seven 6s)

\(P(One 6) = (8C1) * P(6) * P(Not 6)^7 = 8 * (1/6) * (5/6)^7P(Three 6s) = (8C3) * P(6)^3 * P(Not 6)^5 = 56 * (1/6)^3 * (5/6)^5P(Five 6s) = (8C5) * P(6)^5 * P(Not 6)^3 = 56 * (1/6)^5 * (5/6)^3P(Seven 6s) = (8C7) * P(6)^7 * P(Not 6) = 8 * (1/6)^7 * (5/6)\)

P(Odd 6s) = P(One 6) + P(Three 6s) + P(Five 6s) + P(Seven 6s)

Calculate each term and sum them up to find the final probability.

After performing the calculations, we find that P(Odd 6s) is approximately 0.28806 or 28.806%.

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The seesaw does not meet safety regulations because using trigonometry, the minimum seat height is 22.2cm and the maximum seat height is 288.2cm from the ground.

To determine if the seesaw has been safely installed, we need to check if the seats meet the safety regulations when the seesaw is at its maximum angle of 20°.

Let's start by finding the height of the seesaw at its maximum angle. We can use trigonometry to do this:

sin(20°) = height of seesaw / length of seesaw

height of seesaw = sin(20°) x length of seesaw

height of seesaw = sin(20°) x 3.6m

height of seesaw = 1.227m

So the height of the seesaw at its maximum angle is 1.227m.

Next, we need to find the height of each seat when the seesaw is at its maximum angle. To do this, we can use similar triangles. Let x be the distance from the centre of the seesaw to the end of each seat:

x / 0.84m = (x + seat height) / 1.227m

Solving for seat height:

seat height = 1.227m(x/0.84m) - x

Now we can plug in the values for x and solve for the minimum and maximum seat heights:

Minimum seat height:

x = 0.23m (end of seat is no less than 23 cm from the ground)

seat height = 1.227m(0.23m/0.84m) - 0.23m

minimum seat height = 0.222m or 22.2cm

Maximum seat height:

x = 1.5m (end of seat is no more than 150 cm from the ground)

seat height = 1.227m(1.5m/0.84m) - 1.5m

maximum seat height = 2.882m or 288.2cm

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The given expression ((y-b)²/(y-b+1)+(y-b)/(y-b+1) after being reduced to a polynomial, can be represented as y-b.

In order to reduce the given equation to a polynomial, we are required to simplify and combine like terms. First, we can simplify the expression in the numerator by expanding the square:

((y-b)²/(y-b+1) = (y-b)(y-b)/(y-b+1) = (y-b)²/(y-b+1)

Now, we can combine the two terms in the equation by finding a common denominator:

(y-b)²/(y-b+1) + (y-b)/(y-b+1) = [(y-b)² + (y-b)]/(y-b+1)

Next, we can combine the terms in the numerator by factoring out (y-b):

[(y-b)² + (y-b)]/(y-b+1) = (y-b)(y-b+1)/(y-b+1)

Finally, we can cancel out the common factor of (y-b+1) in the numerator and denominator to get the polynomial:

(y-b)(y-b+1)/(y-b+1) = y-b

Therefore, the equation ((y-b)²)/(y-b+1)+(y-b)/(y-b+1)  after being simplified, is equivalent to the polynomial y-b.

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The probability of getting a 5 on the die roll is not affected by whether or not we get heads on the coin toss, so we can say that the events are independent.

The probability of an event is  described as a number that indicates how likely the event is to occur.

The sample space for tossing a coin and rolling a die can be  expressed as:

S = {H1, H2, H3, H4, H5, H6, T1, T2, T3, T4, T5, T6}

where H = heads

T = tails,

we can say that the numbers 1-6 are the possible outcomes of rolling the die.

A = {(H5)} which is event of getting heads on the coin toss and then getting a 5

P(H) = 1/2 (probability of getting heads on the coin toss)

P(5) = 1/6 (probability of rolling a 5 on the die)

P(H and 5) = P(H) × P(5)

P(H and 5) = 1/2 × 1/6

P(H and 5) = 1/12

So we can see that the probability of getting a 5 on the die roll is not affected by whether or not we get heads on the coin toss, so we can say that the events are independent.

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