help me pls ASAP I need it in 5min helpppp

Answer:

hey mate

surface area of cuboid is 2(lh+bh+hl)

doing for first cuboid

h = 20

l = 6

b = 5

surface area for this cuboid on calculating u get 500 sq.cm

now

second cuboid

h = 12

l = 6

b = 4

calculaye it by formula and u get 288 sq.cm

so total surface area is 500 + 288 = 788 but in this one side is getting counted 2 times which is rectangle with length 6 and 12 so it's area is 12×6 = 72

final ans = 788-72 = 716 cm2

as per me that's ans

brinliest pls

Answer:

Step-by-step explanation:

3280 feet are in a mile.

By applying the inverse function f^(-1) appropriately, we can establish the equality f(f^(-1)(f(A))) = f(A) and f^(-1)(f(f^(-1)(B))) = f^(-1)(B) for the given functions f and sets A, B.To prove the given statements, we need to show that f(f^(-1)(f(A))) = f(A) and f^(-1)(f(f^(-1)(B))) = f^(-1)(B).

For the first statement, we start by applying f^(-1) on both sides of f(f^(-1)(f(A))). This gives us f^(-1)(f(f^(-1)(f(A)))) = f^(-1)(f(A)). Now, since f^(-1) undoes the effect of f, we can simplify the left side of the equation to f^(-1)(f(f^(-1)(f(A)))) = f^(-1)(A). This implies that f(f^(-1)(f(A))) = A. However, we want to prove that f(f^(-1)(f(A))) = f(A). To establish this, we can substitute A with f(A) in the equation we just derived, which gives us f(f^(-1)(f(A))) = f(A). Hence, the first statement is proved.

For the second statement, we start with f^(-1)(f(f^(-1)(B))). Similar to the previous proof, we can apply f on both sides of the equation to get f(f^(-1)(f(f^(-1)(B)))) = f(f^(-1)(B)). Now, by the definition of f^(-1), we know that f(f^(-1)(y)) = y for any y in the range of f. Applying this to the right side of the equation, we can simplify it to f(f^(-1)(B)) = B. This gives us f(f^(-1)(f(f^(-1)(B)))) = B. However, we want to prove that f^(-1)(f(f^(-1)(B))) = f^(-1)(B). To establish this, we can substitute B with f(f^(-1)(B)) in the equation we just derived, which gives us f^(-1)(f(f^(-1)(B))) = f^(-1)(B). Therefore, the second statement is proved.

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Answer:

4

Step-by-step explanation:

4 (4) + 2 = 18

16 + 2 = 18

18 = 18

Answer:

Step-by-step explanation:

1:

Solve 4(1) + 2 = 18:

1 is false.

2:

Solve 4(2) + 2 = 18

2 is false.

3:

Solve 4(3) + 2 = 18

3 is false.

4:

Solve 4(4) + 2 = 18

4 is true.

Correct answer is 4.

Answer:

16^6

Step-by-step explanation:

Answer: 27 masks

Step-by-step explanation:   2/3 = 1 mask

1 yard = 3/2

18 yards=3/2 * 18 = 27 masks

A symbol that creates a true sentence for x = 6 is '>' i.e.,

12 ÷ x + 2x > 1 2 ÷ (x + 2x)

In this question, we have been given a statement 12 ÷ x + 2x ____ 12 ÷ (x + 2x)

We need to select a correct symbol that would create a true sentence when x = 6.

Consider an expression 12 ÷ x + 2x for x = 6.

= 12 ÷ 6 + 2(6)

= 2 + 12

= 14                              ...................(1)

Consider an expression 12 ÷ (x + 2x) for x = 6

= 12 ÷ (6 + 2(6))

= 12 ÷ (6 + 12)

= 12 ÷ 18

= 0.67                               ...................(2)

From (1) and (2),

14 > 0.67

Therefore, a symbol that creates a true sentence for x = 6 is '>'

i.e., 12 ÷ x + 2x > 1 2 ÷ (x + 2x)

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Answer:

m = 6

Step-by-step explanation:

The definition of a derivative is the slope of the tangent line.

Step 1: Define

f(x) = x² + 4x - 3

Point (1, 2)

Step 2: Find slope of tangent line

The correct statement is Option B , as it can be seen from the graph that ,the data on both the side of seventh grade is similar as compared to that of the fifth grade.

The missing data from the question is attached in the image.

The collection , interpretation ,organization and presentation of data in mathematics falls under Statistics.

According to the data given and the statements given in the option it  can be seen that , neither the data's are peaking at 5 and 6 hours for both , nor there is a gap in 7th grade data , and the data is not clustered at 3 hours for both ,

So the correct statement is Option B

as it can be seen from the graph that ,the data on both the side of seventh grade is similar as compared to that of the fifth grade.

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Answer: B

Step-by-step explanation:

The cost of each subscription will be $300.

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

An equestrian club orders magazine subscriptions for new members.

Last year they had 2 new members and spent $600 on subscriptions.

Then the equation is given below.

2m = 600

Then the cost of each subscription will be

2m = 600

m = $300

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Answer:

57472

Step-by-step explanation:

The best big-o bound that any algorithm that multiplies two n-bit numbers can achieve is O(n²). This is because each of the n bits of a number x must be multiplied by each of the n bits of a number y, resulting in a total of n² multiplications.

Even with the most efficient algorithms, there is no way to avoid performing each of these multiplications, leading to a complexity of O(n²). While some algorithms may have lower constant factors or improved optimizations, they cannot fundamentally change the nature of the problem at hand. Therefore, any algorithm that performs the multiplication of two n-bit numbers must have a complexity of at least O(n²).

However, there are certain techniques and optimizations that can be used to improve the efficiency of the algorithm and reduce the constant factors involved. These include techniques like Karatsuba multiplication and Fast Fourier Transform, which can reduce the number of multiplications needed to perform the operation, thereby improving the overall performance of the algorithm.

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Answer:

AAA

Step-by-step explanation:

There's no angle angle angle (AAA) because all triangle's angles add up to 180

Answer:

Choice G

Step-by-step explanation:

Choice F would imply Circle II to I (But we are looking for I to II). Choices H and J implies translation not dilation.

Answer:

Richard can buy 20 bananas for $5

Step-by-step explanation:

∵ Richard bought 3 pounds of bananas for $1.50

∵ 1 pound = 16 ounces

∴ 3 pounds = 3 × 16 = 48 ounces

→ That means Richard bought 48 ounces for $1.50

∴ The cost 48 ounces = $1.50

∵ A banana weighs about 8 ounces

→ Let us find 48 ounces equal to how many bananas

∵ 48 ÷ 8 = 6

∴ The 48 ounces are the weighs of 6 bananas

∴ The cost of 6 bananas = $1.50

→ To find how many bananas can he buy by $5, use the ratio method

→  Cost  :  Banana

→  1.50   :  6

→  5        :   x

→ By using cross multiplication

∵ 1.50 × x = 5 × 6

∴ 1.50x = 30

→ Divide both sides by 1.50

∴ x = 20

∵ x is the number of bananas

∴ Richard can buy 20 bananas for $5

Answer:

graph D

Step-by-step explanation:

if x = 0

y = 2 |-1| - 3

y = 2 (1) - 3

y = 2 - 3

y = -1

A (0, -1)

if x = 1

y = 2 |1-1|  - 3

y = 2 (0) - 3

y = -3

B (1,-3)

The value of x from given figure is 7.5

What is Triangle ?

A triangle is a two-dimensional geometric shape that has three straight sides and three angles. It is one of the most fundamental shapes in geometry and is used extensively in mathematics, science, and everyday life. Triangles can be classified based on their sides and angles.

Based on their sides, triangles can be classified as equilateral, isosceles, or scalene. In an equilateral triangle, all three sides are equal in length. In an isosceles triangle, two sides are equal in length, and the third side is different. In a scalene triangle, all three sides are different in length.

From the given figure ,

we can say that

10 : 4 = x : 3

30 = 4 x

x = 7.5

Therefore, The value of x from given figure is 7.5

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Answer:2/3

Step-by-step explanation:

\(\textbf{Answer: }\)

\(\text{c=5}\)

\(\underline{\textbf{Skills needed: Modular arithmetic}}\)

\(\textbf{Step-by-step explanation below: }\)

1) \(\text{c is the remainder of: } -23 \div 7 \text{, but c has to be positive}\)

2) \(\text{We immediately know that 7 * -3 = -21, and that c can equal -2} \\ \text{but c has to be positive}\)

3) \(\text{Our best bet, is to add another negative 7 to 7*-3} \\ \text{This means that we are multiplying 7 by -4}\)

4) \(\text{7*-4 is -28, which means that c is 5 in this new case} \\ \text{Therefore, c is 5 }\)

5) \(\text{Hope you understand, and have a nice day!}\)

A. The sequence {Xn, n > 1} is a Markov chain because the probability of selecting the next ball depends only on the color of the current ball, not on any previous selections. The transition probability matrix is:

 |   0.7   0.3 |

P = | 0.5 0.5 |

where the first row represents the probabilities of transitioning from a red ball to either a red or blue ball, and the second row represents the probabilities of transitioning from a blue ball to either a red or blue ball.

B. The sequence {Yn, n > 1} is also a Markov chain because the number of red balls in the urn before the nth selection only depends on the color of the (n-1)th ball selected. The transition probability matrix is:

 |   0.7   0.3 |

P = | 0.5 0.5 |

where the first row represents the probabilities of going from one red ball to two red balls or one red and one blue ball, and the second row represents the probabilities of going from one blue ball to either one red and one blue ball or two blue balls.

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To determine the number of ways you can achieve a 5-card hand without repeats from a deck of 52 cards, we can use the formula for combinations:

C(52, 5) = 52! / (5! * (52-5)!) = 2,598,960

This means that there are 2,598,960 ways to draw a 5-card hand without repeats from a standard deck of 52 cards.

In order to find the number of ways you can achieve a specific 5-card hand from a standard deck of 52 cards, you'll need to use combinations in discrete math. Combinations are used to calculate the number of ways to choose a certain number of items from a larger set, without considering the order of the items.

In this case, you want to choose 5 cards from a deck of 52 cards. Using the combination formula, you can determine the number of ways to do this:

C(n, k) = n! / (k!(n-k)!)

Where n is the total number of items (52 cards), k is the number of items you want to choose (5 cards), and ! represents the factorial function (e.g., 5! = 5 x 4 x 3 x 2 x 1).

Using the formula for your situation:

C(52, 5) = 52! / (5!(52-5)!)
C(52, 5) = 52! / (5!47!)

Calculating the factorials and dividing, you get:

C(52, 5) = 2,598,960

So, there are 2,598,960 ways to draw a 5-card hand from a standard deck of 52 cards without repeats.

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Answer:

Step-by-step explanation:

If it is not possible to draw a vertical line to touch the graph of a function in more than one place, then y is a function of x. For Example: Use the vertical line test to determine if the graph depicts y is a function of x.

One factor that could make a source unreliable is the presence of an inaccurate fact on a page of an article.

When evaluating the reliability of a source, accuracy is a crucial factor. If an article contains an inaccurate fact, it raises doubts about the credibility and trustworthiness of the information presented. Inaccurate facts can lead to misinformation and can potentially mislead readers or misrepresent the subject matter.

On the other hand, the presence of a group of non-experts disagreeing with the data published in an article does not necessarily make the source unreliable. Disagreements among individuals, whether they are experts or non-experts, are common in various fields. It is important to consider the reasons and evidence behind the disagreement before assessing the reliability of the source.

Similarly, the fact that only non-experts corroborate the data in an article does not automatically render the source unreliable. While expert opinions and consensus are valued, non-experts can still provide valuable insights and contribute to the understanding of a topic. Their perspectives and experiences can bring diversity to the discussion. However, it is essential to critically evaluate the credibility and expertise of the sources supporting the data.

Lastly, the presence of typos in an article, while not ideal, does not necessarily impact the reliability of the source unless it significantly affects the clarity or understanding of the information being presented. Typos are typically considered as minor errors that can be corrected without undermining the overall integrity or accuracy of the content.

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The complete question is:

Which could make a source unreliable? (1 point)

There is an inaccurate fact on a page of an article.

A group of non-experts disagrees with the data published in an article.

Only non-experts corroborate the data in an article.

There are some typos in an article.

Answer:

13

Step-by-step explanation:

the reason why I think it's 13 is because 10 15 15 - 10 = 5 so maybe if you do 13 - 8 = 5 maybe they have a relationship I really hope you get it right if you don't I understand.

Answer:

B. 12 Units

Step-by-step explanation:

Create a ratio :

10/8 = 15/x

10/8 = 1.25

15/1.25 = x

x = 12

Based on the Venn diagram, we can see that there are 4 students who like pepperoni, 2 students who like olives, and 1 student who likes both toppings. To find P(A or B), we need to add the probabilities of event A and event B and then subtract the probability of their intersection (the student who likes both toppings):

P(A or B) = P(A) + P(B) - P(A and B)
P(A) = 4/9
P(B) = 2/9
P(A and B) = 1/9

Therefore, P(A or B) = 4/9 + 2/9 - 1/9 = 5/9

So, the probability that a student likes either pepperoni or olives (or both) is 5/9.
To find the probability of P(A or B), we will use the information provided in the Venn diagram. Here's a step-by-step explanation:

1. Identify the number of students who like pepperoni (event A).
2. Identify the number of students who like olives (event B).
3. Identify the number of students who like both pepperoni and olives (the intersection of events A and B).
4. Use the formula P(A or B) = P(A) + P(B) - P(A and B) to find the probability.

Unfortunately, you did not provide the actual numbers from the Venn diagram. However, using the steps above, you can find the probability of P(A or B) once you have those numbers.

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Answer:

so x = 20 , y = -21 , which is in quad IV

r^2= 400+441 = 841

r = √841 = 29

then cos Ø = 20/29

sec Ø = 29/20 = 1.45

Step-by-step explanation:

please give brainliest

Answer:

84 square cm

Step-by-step explanation:

Step-by-step explanation:

You should not photograph where unless you have permission?

A public park

Your backyard

A parade

Into someone's window

The interest estimated by compounding methods are-

(a) Annual: n = 1; CI = $860

(b) Semiannual: n = 2; CI = $862.

(c) Monthly: n = 12; CI = $865

(d) Daily: n = 365; CI = $855

The formula for computing the compound interest is -

CI = A - P

A = P(1 + r/100nt)∧rt

In which,

(a) Annual: n = 1

A = 10,400(1 + 8/500)∧5

A = 10,400 x 1.08

A = 11,260

CI = 11,260 - 10,400

CI = $860

(b) Semiannual: n = 2

A = 10,400(1 + 8/1000)∧10

A = 10,400 x 1.089

A = 11,262

CI = $862.

(c) Monthly: n = 12

A = 10,400(1 + 8/6000)∧60

A = 10,400 x 1.083

A = 11,265

CI = $865

(d) Daily: n = 365

A = 10,400(1 + 8/182500)∧1825

A = 10,400 x 1.0832

A = 11,255

CI = $855

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