can someone please explain this, brainliest will be given. Thx

Answer:

2^4/4^2 will be 1, I will explain after answering,

2 x 3^1 = 6

(4 - 2) ^2 = 4

First. Evaluate the exponents in the fraction above

2 x 2 x 2 x 2 = 16

4 x 4 = 16

and 16 over 16 would equal 1 whole

3 to the power of 1 means just 3 so 2 x 3 = 6 (easy multiplication)

Evaluate in the parenthesis first: 4 - 2 = 2 then 2 to the power of 2 would be   2 x 2 = 4

Answer: B. 4/7

Step-by-step explanation:

(3/7)(3/4) = (3/7)*(4/3) = (3*4)/(3*7) = 4/7

Answer:

you average the scores by adding scores from exam 1 and exam 2 then divide it by 2 to average the exam scores

Step-by-step explanation:

Answer:

1.25w

Step-by-step explanation:

w+0.25 is really 1w+0.25, therefore adding the two would equal 1.25w, here  is how to solve it:

\(w+0.25w\\1*w+0.25w\\1w+0.25w\\1.25w\)

P.S: I anwsered it here:

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Answer:

1.25

Step-by-step explanation:

There is an invisible 1 whenever you add x, y, w, whatever. So when you add w + .25w you are really adding 1w + .25w. Because these are like terms, they go together and combined 1+.25 is 1.25. I hope this helps.

Answer:

I can even see anything can you reupload your answer, please?

Step-by-step explanation:

Using the margin of error, it is found that the effect of this increase is to reduce the variability.

\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)

The margin of error of the interval is given by:

\(M = z\sqrt{\frac{\pi(1-\pi)}{n}}\)

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Answer: 606000 pls mark as brainliest

Step-by-step explanation:

multiply 10x 2020x 30which=606000

Answer:

It would take 5 months long to receive an amount of 61,350.

Step-by-step explanation:

P = Rs 60,000

R = 4.5%

T = ?

A = Rs 61,350

so

I = A-P

or, I = Rs 61,350 - Rs 60,000

so, I = Rs 1,350

so

T = (I×100)/P×R

T = (1350×100)/(60,000×4.5)

or, T = 135000/270000

so, T = 0.5 years = 5 months

Answer:

5 or above round up 4 or below round down

15.5

The numbers after the rounded digit becomes zeroes

Hope this helps

Step-by-step explanation:

Answer:

15.5 hope this helps

:)

Step-by-step explanation:

Answer:

33

Step-by-step explanation:

Answer:

uh I don't even know what this is

Answer: x = 500

Step-by-step explanation:

Use the Pythagorean Theorem

a²+b²=c²

300² + 400² = x²

90000 + 160000 = x²

250000 = x²

√250000 = √x²

500 = x

hope i explained it :)

Step-by-step explanation:

As instructed

Use Elimination Method....

2x - y = 2

2x - 2 = y

y = 2x - 2 ----------- equation 1

5x + y = -9

Substitute for y

5x + 2x - 2 = -9

7x = -9 + 2

7x = -7

x = -7/7

x = -1

Substitute for x in equation 1

y = 2x - 2

y = 2(-1) - 2

y = -2 - 2

y = -4

Answer:

(- 1, - 4 )

Step-by-step explanation:

Given the 2 equations

2x - y = 2 → (1)

5x + y = - 9 → (2)

Adding the 2 equations term by term will eliminate the y- term, that is

7x + 0 = - 7

7x = - 7 ( divide both sides by 7 )

x = - 1

Substitute x = - 1 into either of the 2 equations and solve for y

Substituting into (2)

5(- 1) + y = - 9

- 5 + y = - 9 ( add 5 to both sides )

y = - 4

solution is (- 1, - 4 )

Answer:B

Step-by-step explanation:

From calculating the equations below, we find that all sections have m equal to negative three.

According to the second option, it is most likely because six is added.

The total area of the flag is the sum of the areas of the three stripes and the percentage of the flag that is gold is approximately 0.459%

Let's call this height "h".

We also know that the side lengths of the flag are in the ratio 2:3. This means that if the shortest side is 2x, then the longest side is 3x. Since the three stripes are of equal height, each one must be h/3 in height.

Now we can use this information to find the area of the gold-colored disk and the total area of the flag. The area of a circle is given by the formula A = πr^2, where r is the radius. Since the diameter is equal to the height of the center stripe (which is h/3), the radius of the disk is h/6. So the area of the disk is:

A_disk = π(h/6)^2 = πh^2/36

The total area of the flag is the sum of the areas of the three stripes. Since each stripe is h/3 in height and the shortest side is 2x, the area of each stripe is:

A_stripe = (2x)(h/3) = 2hx/3

So the total area of the flag is:

A_flag = 3(A_stripe) = 6hx

To find the percentage of the flag that is gold, we need to divide the area of the gold-colored disk by the total area of the flag and multiply by 100.

percentage = (A_disk / A_flag) x 100

Substituting our expressions for A_disk and A_flag, we get:

percentage = (πh^2/36) / (6hx) x 100

Simplifying, we can cancel out the factor of h and get:

percentage = (π/216)x100

So the percentage of the flag that is gold is approximately 0.459% (rounded to three decimal places).

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A sequence of transformation that would move ΔABC onto ΔDEF is: D. a dilation by a scale factor of 1/2, centered at the origin, followed by a 90° clockwise rotation about the origin.

In Geometry, a dilation is a type of transformation which typically changes the size of a geometric object, but not its shape.

In this scenario an exercise, we would dilate the coordinates of the pre-image by applying a scale factor of 1/2 that is centered at the origin as follows:

Ordered pair B (-4, 2) → Ordered pair B' (-4 × 1/2, 2 × 1/2) = Ordered pair B' (-2, 1).

In Mathematics and Geometry, a rotation can be defined as a type of transformation which moves every point of the object through a number of degrees around a given point, which can either be clockwise or counterclockwise (anticlockwise) direction;

(x, y)                               →            (y, -x)

Ordered pair B' (-2, 1)   →          E (1, 2)

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9p - 10 = 53

Add 10 to both sides

9p = 63

Divide both sides by 9

P = 7

Answer: p = 7

Answer:

= 7

Step-by-step explanation:

1. 9p-10=53       9p - 10 + 10 = 53+10

2. 9p = 63

3. 9p = 63         9p/9 = 63/9

4. Cancel the terms that are both in numerator and denominator

   Divided the Numbers

                                    p = 7

5. Solution)

               P = 7

Answer:

-37, -36, -35

Step-by-step explanation:

x+x+1+x+2=x-71

3x+3=x-71

2x=-74

x=-37

So x=-37, x+1=-36, x+2=-35

Add these three numbers and you get -108 which is 71 less than -37

A scatter plot would best display the relationship between the number of hours a student spent studying for several tests and the student's grade on each test.

A scatter plot is a graph that displays the relationship between two continuous variables. In this case, the number of hours a student spent studying is the independent variable, which would be plotted on the x-axis. The student's grade on each test is the dependent variable, which would be plotted on the y-axis. Each data point would represent a single test, with the x-coordinate indicating the number of hours studied for that test and the y-coordinate indicating the grade received.

By using a scatter plot, you can easily identify any patterns or relationships between the number of hours studied and the student's grades on each test. It can also help to identify any outliers or anomalies in the data.

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The probability of a success and a failure is as follows,

P(success) = one - fourth

P(failure) = three - fourth

Definition of Probability

The area of mathematics that deals with numerical representations of the likelihood that an event will occur or that a statement is true is known as Probability. An event's probability is a number between 0 and 1, where, 0  generally denotes the event's impossibility and 1 denotes certainty of that event.

Calculating the Probability

The formula for finding the probability of an event to occur is given by,

P = (favorable outcomes)÷(total number of outcomes)

Now, it is given that each multiple choice question consists of 4 choices.

And, out of these four choices, only one answer is true.

Then, if Laila guesses the answer, the probability of choosing the right answer is given by,

P(success) =1/4

Thus, the probability of choosing the wrong answer will be,

p(failure) = 1 - P(success)

⇒ P(failure) = 1 - (1/4)

⇒ P(failure) = 3/4

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The value of P(1.41 < Z < 2.85)  is 0.0771.

Hence, the correct answer is d.

A normally distributed random variable with mean μ= 0 and standard deviation σ= 1 is referred to as a standard normal random variable. The letter Z will always be used to represent it.

Because the Standard Normal Distribution is a probability distribution, the area under the curve between two points indicates the likelihood that variables will take on a range of values.

The whole area under the curve is one, or one hundred percent.

The mean and variance of a normal distribution are governed by two factors.

A standard normal distribution is a normal distribution with a mean of 0 and a standard deviation of 1.

The probability that a standard normal random variable Z is between 1.41 and 2.85 can be found using a standard normal table with a standard normal cumulative distribution function.

The answer is approximate:

P(1.41 < Z < 2.85)

= P(Z < 2.85) - P(Z < 1.41)

= 0.9927 - 0.9185

= 0.0742

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Given, at Smart Supply, a backpack costs 45$ and a folder costs 0.45$.

Also, at Supply Guy, a backpack costs 50.40$ and a folder costs 0.15$.

Therefore, if we observe, At Smart Supply, A backpack and a folder, in total, costs 45.45$, and At Supply Guy, A backpack and a folder, in total, costs 50.55$.

Now, We have to find the number of folders to be bought at Smart Supply so that Supply Guy becomes a cheaper option.

The number of folders required is 13 folders because

=> 1 * 45$ + 13 * 0.45$ > 50.55$

=>  50.85$ > 50.55$

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The right question is, "John needs to buy a backpack and several folders for school. If he shops at Smart Supply, the backpack will cost 45$ and the folder costs 0.45$ each. If he shops at Supply Guy, the backpack will cost 50.40$, and the folder costs 0.15$ each. Write and solve an inequality to find the number of folders John would need to buy for the Supply Guy to be the cheaper option."

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Given:

Solve for x,

Answer: x = 35.

Answer: 5:6 = 35:42

Step-by-step explanation:

\(\displaystyle\\5:6=\\\\\frac{5}{6} =\\\\\frac{5(7)}{6(7)}=\\\\\frac{35}{42} =\\\\35:42\)

When a pair of dice rolled, the probability that the sum is either a multiple of 3 or a multiple of 4 is 5/9.

If an event A and an event B is independent to each other, then the probability A or B is:

P(A or B) = P(A∪B) = P(A) + P(B)

In the given problem:

The possible outcomes or the sample space of rolling a pair of dice = 6 x 6 = 36.

The maximum sum is 6 + 6 = 12

Multiple 3 or multiple 4 that ≤ 12 is {3, 4, 6, 8, 9, 12}

Possible outcomes for Sum = 3 are 1 + 2 and 2 + 1

Hence,

P(3) = 2/36

Possible outcomes for Sum = 4 are 1 + 3, 3 + 1, 2 + 2

Hence,

P(4) = 3/36

For Sum = 8,  2 + 6, 6 + 2, 3 + 5, 5 + 3, 4 + 4

Hence,

P(8) = 5/36

Similarly,

P(6) = 5/36

P(9) = 4/36

P(12) = 1/36

Therefore,

P(Multiple 3 or multiple 4) = P(3, 4, 6, 8, 9, 12)

                                          = 2/36+3/36+5/36+5/36+4/36+1/36

                                          = 20/36

                                          = 5/9

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Answer: C. 2-3i

Step-by-step explanation:

edge2020

The subtraction is (-2 + 3i). The correct option is D.

The method of decreasing one quantity from the other quantity is called subtraction. For subtraction, we use ( - ) as a mathematical symbol.

Given that the substract w₂ = –2 from  w₁ = –3i.

The subtraction will be calculated as:-

S =  w₂-w₁

S = -2 - (-3i)

S = -2 + (-3i)

Therefore, the subtraction is (-2 + 3i). The correct option is D.

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Marlene will have to pay a Total of $131.89 if there is a 9% government tax on bills.

Marlene had a meal at KFC which cost her $110, and there was an additional 10% service charge. We have to determine the total cost of her meal, including the 9% government tax on bills. To find out the total cost of the meal, we'll use the following steps:

Step 1: Calculate the service charge service Charge = 10% of $110Service Charge = (10/100) × $110Service Charge = $11

Step 2: Calculate the subtotal Subtotal = Cost of meal + Service charge Subtotal = $110 + $11Subtotal = $121

Step 3: Calculate the government tax Government Tax = 9% of Subtotal Government Tax = (9/100) × $121Government Tax = $10.89

Step 4: Calculate the total cost Total Cost = Subtotal + Government Tax Total Cost = $121 + $10.89Total Cost = $131.89

Therefore, Marlene will have to pay a total of $131.89 if there is a 9% government tax on bills.

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We are told that Jason has $325 and that he earns $105 per week. That means that if "w" is the number of weeks then the amount of money he has in total is what he has saved by the product of $105 by the number of weeks. That is, if A is the amount he has, then:

Now, we are asked how many weeks it takes to get to $900. This means that we set A = 900 and solve for "w".

To solve for "w" we first subtract 325 on both sides:

Now we divide both sides by 105

Solving the operations:

Therefore, it takes Jason 5.5 weeks to get to $900

Answer:

A) 15

Step-by-step explanation:

a = 3   b = 5  c = 7

a + b + c

3 + 5 + 7 = 15

Answer:

I believe it is A 15

Step-by-step explanation: