I’M MARKING BRAINLIEST!!!!

Plz help I really need help

Answer:

5.6 x \(10^{4}\)

Step-by-step explanation:

7 x 8 = 56

\(10^{-2}\) x \(10^{5}\) = \(10^{3}\)

56 x \(10^{3}\)

5.6 x \(10^{4}\)

Answer:

The answer is

\(5.6 x 10^{4}\)

Answer:

2.3a + 0.8a =

2.3

+ 0.8

________

3.1

________

So therefore, 2.3a + 0.8a = 3.1a

Answer:pretty sure answer is 7- -2 =7+2

Step-by-step explanation:

7- -2=9

7+2=9

Answer:

Results are below.

Step-by-step explanation:

Giving the following information:

Savings account:

PV= $1,000

n= 1

i= 0.045

Fixed Deposit:

PV= $1,000

n= 1

i= 0.06

To calculate the future value, we need to use the following formula:

FV= PV*(1+i)^n

Savings account:

FV= 1,000*1.045^1

FV= $1,045

Fixed deposit:

FV= 1,000*1.06^1

FV= $1,060

Solution:

Let the two integers be x and y;

Thus;

CORRECT OPTION: B

Answer:

B i think I'm kinda sure tho

b

SOLUTION

We want to solve

To do this, change the mixed fraction into improper fraction.

We say, 2 multiplied by 12, then plus 1. We write the result as the numerator over the denominator which is 2. That is

We then multiply by 4, we have

Hence the answer is 50

Answer:

\(equation \: of \: a \: line \\ y - y1 = m(x - x1) \\ y - ( - 1) = \frac{5}{2}(x - ( - 2)) \\ 2(y + 1 )= 5(x + 2) \\ 2y + 2 = 5x + 10 \\ 2y - 5x - 8 = 0\)

When x does not have full rank, it means that the columns of x are not linearly independent. This means that there exists a non-zero vector b such that xb = 0. Let's see why px = x when this is the case.

First, let's recall what the projection matrix p is. The projection matrix p is defined as p = x(xTx)-1xT. This matrix projects any vector onto the column space of x.

Now, let's see what happens when we multiply px:
px = x(xTx)-1xTx
Since xTx is a scalar, we can write this as:
px = x(xTx)-1(xTx)
px = x

So we can see that px = x when x does not have full rank. This is because the projection matrix p projects any vector onto the column space of x, and when x does not have full rank, the column space of x is the same as the column space of px.

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Answer:

B

Step-by-step explanation:

ita only b .............

The equations that are equivalent to (5x + 6)2 = 3-(4x +12) is (5x+6)2=−4x−9.

Option B is correct.

The very first thing to do is to solve the expression in the given question.

SO,

(5x + 6)2 = 3-(4x +12)

Open brackets

Collect like terms

x = -21/14

Now, we will solve each of the given options to determine which one corresponds to the solution to the expression above.

Starting with Option (a)

5x + 6 = 3 - (4x + 12)

Open brackets

Option (a) is incorrect

b.

(5x + 6 )2  = -4x - 9

Open brackets

Option (b) is correct

(c.)

52x + 3 = 3 - (4x + 12)

Open brackets

Option (c) is incorrect

(d)

(5x + 6)2 = -4x + 15

Open brackets

Option (d) is incorrect

(e)

5x + 6 = -8x - 18

Collect like terms

Option (e) is incorrect

Therefore, we can conclude that the correct equation equivalent to the given expression in the question can be seen in Option b.

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Answer: The midpoint is (5,5.5)

Step-by-step explanation:

Adding X1 And X2 equals 10. Then the x variables have to be divided which is 10 divided 2 equals 5, the 5 represents the x value of the x part of midpoint. (5,?)

Adding Y1 and Y2 equals 11. Then the y variables have to be divided by 2 which is 11 divided by 2 equals 5.5, the 5.5 represents the y value of the midpoint. (?,5.5)

The final answer is Midpoint = (5,5.5)

To solve this problem, we need to use the formula:

Number of revolutions = Distance traveled / Circumference of wheel

First, we need to find the circumference of the wheel using the formula: Circumference = diameter x pi

To calculate the number of wheel revolutions for Jackson's dirtbike, we'll need to use the diameter of the wheel and the distance he rides. Here's a step-by-step explanation:

1. Convert the diameter of the wheel (19 inches) to feet: 19 inches × (1 foot / 12 inches) = 1.583 feet

2. Calculate the circumference of the wheel using the diameter and the value of pi (3.14): Circumference = Diameter × pi = 1.583 feet × 3.14 = 4.97062 feet

3. Now, divide the total distance ridden (500 feet) by the circumference of the wheel to find the number of revolutions: Revolutions = Distance / Circumference = 500 feet / 4.97062 feet ≈ 100.59 revolutions

The wheel on Jackson's dirtbike will make approximately 100.59 revolutions when he rides for 500 feet.

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the following expression i.e. (1.8x10⁹) (6.7 x 10¹²) in Scientific Notation is 120.6×\(10^{20}\) and a=120.6 and b=20

Scientific notation:

Scientific notation is a method of presenting very large or very small numbers in a more simplified format. We know that whole numbers can be extended indefinitely, but such large numbers cannot be written on a piece of paper. Furthermore, the numbers found after the decimal point needed to be represented in a more straightforward manner.

(1.8x10⁹) (6.7 x 10¹²) = 120.6×\(10^{20}\)

Given (1.8x10⁹) (6.7 x 10¹²) =a x \(10^{b}\)

a x \(10^{b}\)= 120.6×\(10^{20}\)

a=120.6 and b=20

Therefore,the following expression i.e. (1.8x10⁹) (6.7 x 10¹²) in Scientific Notation is 120.6×\(10^{20}\) and a=120.6 and b=20

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By solving the system of equations, the number of large bags of popcorn sold is 57, and the number of small bags of popcorn sold is 209.

Let's denote the number of large bags of popcorn sold as L and the number of small bags of popcorn sold as S.

Variable statement:

L = number of large bags of popcorn sold

S = number of small bags of popcorn sold

Equations:

1. L + S = 266 (Total number of bags sold is 266)

2. 4L + 1S = 437 (Total revenue from popcorn sales is $437)

We can use the method of substitution or elimination to find the values of L and S.

Using the substitution method, we can solve Equation 1 for L and substitute it into Equation 2:

L = 266 - S

Substituting L into Equation 2:

4(266 - S) + S = 437

1064 - 4S + S = 437

-3S = 437 - 1064

-3S = -627

S = -627 / -3

S = 209

Now, substitute the value of S back into Equation 1 to find L:

L + 209 = 266

L = 266 - 209

L = 57

Therefore, the number of large bags of popcorn sold is 57, and the number of small bags of popcorn sold is 209.

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Answer:

sorry

Step-by-step explanation:

i dont know

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Answer:

30000 : 20000

Step-by-step explanation:

Given the ratio

\(\frac{1}{10}\) : \(\frac{1}{15}\) ( multiply both parts by 30 the LCM of 10 and 15, to clear the fractions )

= 3 : 2

sum the parts of the ratio, 3 + 2 = 5 parts

Divide the amount by 5 to find the value of 1 part of the ratio

50000 ÷ 5 = 10000 ← value of 1 part of the ratio, then

3 parts = 3 × 10000 = 30000

2 parts = 2 × 10000 = 20000

Then

50000 = 30000 : 20000 in the ratio 3 : 2

The statement given "regression equations are usually used to predict values of unavailable data. if the data do not closely model a particular type of function, then that type of function is not appropriate to use in statistical regression. the more closely data fit a model, the more predicted values will be." is true because regression equations are indeed employed for predicting values of unavailable data.

Regression equations are commonly utilized to make predictions for unavailable data. When the data does not closely conform to a specific type of function, that function is deemed inappropriate for statistical regression. The accuracy of predicted values is contingent on the degree of resemblance between the data and the chosen model. Hence, a strong fit between the data and the model enhances the reliability of predicted values, ensuring that regression analysis is effectively applied for making accurate predictions.

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Step-by-step explanation:

Let the number be \(\overline{abc}=100a+10b+c\).

\(100a+10b+c=34a+34b+34c \\ \\ 66a-24b-33c=0 \\ \\ 22a-8b-11c=0\)

Taking the equation mod \(11\) yields \(-8b \equiv \pmod{11}\), meaning \(b=0\).

So, \(22a-11c=0 \implies c=2a\).

So, the only possibilites are \((a,c)=(1,2), (2,4),(3,6), (4,8)\).

Therefore, there are \(4\) such numbers.

The number that corresponds to the null hypothesis and the alternative hypothesis will be 3 and 6 respectively.

Specify the correct number from the list below that corresponds to the appropriate null and alternative hypotheses for this problem.

It should be noted that the null hypothesis suggests that there's no statistical relationship between the variables.

The alternative hypothesis is different from the null hypothesis as it's the statement that the researcher is testing.

In this case, the number that corresponds to the null hypothesis and the alternative hypothesis will be 3 and 6 respectively.

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Answer:25/5 or 25/1.

Step-by-step explanation: 125 feet in 5 seconds as a unit rate would be 125/5 or 25/1.

Answer:

50y^4x/49

Step-by-step explanation:

y^3/98

((100* y^3/98 * x) * y

2.1 y^3 * y^1=y^(3+1)=y^4

Answer:

I think it may be H. but let me know if i am wrong. if i am right plz mark brainliest

Step-by-step explanation:

27 divided by 3 is 9, 27/3=9 because 27/3 is the same exact thing as 27 divided by 3. So the answer has to be 9

It will take 12 seconds until Hudson and Knox have run the same number of feet.

Let's denote the time it takes until Hudson and Knox have run the same number of feet as "t" (in seconds).

The distance Hudson runs can be calculated by multiplying his speed (8.8 feet/second) by the time "t". Thus, the distance Hudson covers is 8.8t feet.

Knox, on the other hand, had a head start of 30 feet. So the distance Knox covers can be calculated by multiplying his speed (6.3 feet/second) by the time "t" and adding the head start of 30 feet. Thus, the distance Knox covers is 6.3t + 30 feet.

To find the time when both runners have covered the same distance, we set their distances equal to each other:

8.8t = 6.3t + 30

Simplifying the equation:

2.5t = 30

Dividing both sides by 2.5:

t = 30 / 2.5

t = 12

Therefore, it will take 12 seconds until Hudson and Knox have run the same number of feet.

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the sample variance is 57 and the sample standard deviation is approximately 7.55.

To compute the sample variance and standard deviation of the data sample {-6, 7, 7, 7, 15}, we'll follow these steps:

1. Calculate the mean (average) of the data:

  Mean = (-6 + 7 + 7 + 7 + 15) / 5 = 6

2. Calculate the deviation of each data point from the mean:

  Deviation = Data point - Mean

  Deviations: {-12, 1, 1, 1, 9}

3. Square each deviation:

  Squared Deviations: {144, 1, 1, 1, 81}

4. Calculate the sum of squared deviations:

  Sum of Squared Deviations = 144 + 1 + 1 + 1 + 81 = 228

5. Compute the sample variance:

  Variance = Sum of Squared Deviations / (n - 1)

           = 228 / (5 - 1)

           = 57

6. Compute the sample standard deviation:

  Standard Deviation = √Variance

                    = √57

                    ≈ 7.55

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Answer:

figure is missing mate

Answer:

4.5

Step-by-step explanation:

Use sin64=x/5 and simplify to

5sin64 and plug it into a calculator to get 4.49 which is 4.5

Answer:

4x -12

Step-by-step explanation:

8 - 4(-x + 5)

Distribute

8 -4(-x) -4(5)

8 +4x -20

4x -12

answer 4( - 3 + x)

answer

\(4( - 3 + x)\)

\(8 - 4( - x + 5)\)

answer

\( - 12 + 4x\)

Answer:

1 + ( -1) = 0

Step-by-step explanation:

Answer:

A zero pair is a pair of numbers that, when added together, equal zero. In other words, they cancel each other out.

Step-by-step explanation: Here's why: Imagine your place on the rope is to the right of the zero, at the '1' position. Your friend is standing to the left of the zero, at the '-1' position. Where is the ribbon? It's at the 0! So, this means that '1' and '-1' are a zero pair - when added together, they equal zero and the positive cancels out the negative.

the exponential function is n(t) =n° (1+r)∧t, where t is the power refers the time in months after opening and n denotes average customer.

when the rate of increases is occurred very rapidly. In this question, the trendy restaurant has earned reputation.

Given, average number of customers after 11 months of opening = n(11) =310

average number of customers after 15 months of opening= n(15) =456

during this 4 month increases of customer =456 -310 =146

increasing rate of customer per month = 146/4 = 36.5

now increasing rate in percentages = 36.5 %

exponential growth rate, r= 0.365

let, n° is the initial number of customer while opening at t=0 month

now, the exponential function n(t) that model's average number of customers, n after t months of being open will be

  n(t) = n° ( 1+r)∧t

we are given that after 11 months of opening average customer n(11) = 310

now, 310 = n° (1+ 0.365)∧11

n°  = 10

hence, the exponential function = n(t) = 10(1+r)∧t

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The general solution of the given differential equation is y = y_h + y_p = ce^(4t) + (1/7)te^(3t).

The given differential equation is y' - 4y = e^(3t). This is a linear first-order homogeneous differential equation with constant coefficients. To solve this equation, we first find the general solution of the corresponding homogeneous equation y' - 4y = 0. The characteristic equation is r - 4 = 0, which has a single root r = 4. Therefore, the general solution of the homogeneous equation is y_h = c*e^(4t), where c is a constant.

Next, we find a particular solution of the non-homogeneous equation y_p by using the method of undetermined coefficients. Since e^(3t) is a solution of the homogeneous equation, we try a particular solution of the form y_p = Ate^(3t), where A is a constant. We take the first derivative of y_p, which is y'_p = Ae^(3t) + 3At*e^(3t).

Simplifying this equation, we get:

Ae^(3t) - 4At*e^(3t) = e^(3t)

Factoring out e^(3t), we get:

e^(3t)(A - 4tA) = e^(3t)

Since e^(3t) is never zero, we can divide both sides by e^(3t) to get:

A - 4tA = 1

Solving for A, we get:

A = 1/(1-4t)

Therefore, the particular solution of the non-homogeneous equation is y_p = Ate^(3t) = (1/7)te^(3t).

Finally, the general solution of the given differential equation is y = y_h + y_p = c*e^(4t) + (1/7)te^(3t), where c is a constant.

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