need help now lol!!!

The answer is 2(x+3)

hope it helps!

Answer:

2x + 6

Step-by-step explanation:

2(x +3)

2x +6

multiply x by 2=2x

multiply 3×2=6

2x +6

True. the interpretation of the slope is different in a multiple linear regression model as compared to a simple linear regression model.

The slope and intercept of a line reveal the steepness of the line and the location in which it intersects an axis. The slope and intercept of the logistic relationship of the two variables can be utilized to get the average change rate. The ratio of a change in the variable y to the rise in the x component is known as the the line's slope.

Y = a + bX, where X seems to be the mediating variable and Y is the response variable, is the equation of a linear regression line. A is the intersection (the result of y for x = 0), and b is the line's slope.

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Answer:

a relation that is a function

Step-by-step explanation:

Answer:

Step-by-step explanation:

Sum: 6 * 10^-4 + 1.5*10^-4 = 7.5 * 10^-4

Difference: 6 * 10^-4 - 1.5 * 10^-4 = 4.5 * 10^-4

Product: 6*10^-4 * 1.5 * 10^-4 = 9 * 10^-8

Quotient: 6*10^-4/1.5 * 10^-4 = 4

Notice the answers, because they give you the rules.

When adding exponents and rationales, if the powers are the same then the rationales merely add.

Same rule applies to subtraction. Retain the powers and subtract the rationales.

When multiplying the rationales multiply, but the rationales add. they don't stay the same.

When dividing, the rationales divide and the powers subtract -- numerator minus denominator

Answer:

0.0287

Step-by-step explanation:

we first of all need to find the z-score.

z = (X - υ) / σ

where X is the test statistic, υ is the mean and is the standard deviation.

z = (150 - 190) / 21

= -1.9047....

in z-table, the value of the area for z = -1.9047 is 0.02872.

this is the area to the left (finishing race in less than 150 minutes).

so the probability is 0.02872 = 0.0287 to 4 decimal places

Answer:

None of the above.........

Answer:

To convert a decimal to a fraction, place the decimal number over its place value.

Step-by-step explanation:

For example, in 0.6, the six is in the tenths place, so we place 6 over 10 to create the equivalent fraction, 6/10. If needed, simplify the fraction.

40 square units  is the area of this rectangle figure .

What is a rectangle ?

A rectangle is a sort of quadrilateral with parallel sides that are equal to one another and four vertices that are all 90 degrees apart. Because of this, it is also known as an equiangular quadrilateral.

                     The term "parallelogram" can also be used to describe a rectangle because the opposing sides are equal and parallel.

the figure, the rectangle has the vertexes (2,1), (3,-3), (-5,-5) and (-6,-1). The parallelogram has the vertexes (2,7), (3,3), (3,-3), and (2,1).

The area of a parallelogram is base times height. We have 2 vertical lines at x=2 and x=3, so the height is 1. And the length of the line from (3,3) to (3,-3) is 6, so the base is 6. Therefore the area of the parallelogram is 1*6 = 6.

  The rectangle is a tad trickier since it's not aligned with either the x or y axis. But we can use the Pythagorean theorem to get the lengths.

L = sqrt((2 - -6)^2 + (1 - -1)^2)

L = sqrt(8^2 + 2^2)

L = sqrt(64 + 4)

 L = sqrt(68) = 2*sqrt(17)

  W = sqrt((2-3)^2 + (1- -3)^2)

W = sqrt((-1)^2 + 4^2)

W = sqrt(1 + 16)

W = sqrt(17)

  And the area is length * width, so:

2*sqrt(17)*sqrt(17) = 2 * 17 = 34

  And the total area is the sum of the areas, so

34 + 6 = 40

  So the area of the figure is 40 square units.

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Answer: It is point B

Step-by-step explanation:

Answer: point b

Step-by-step explanation:

The quadratic equation that has the same solution as x² + 12x - 10 = -4 is:

y = a(x + 0.34)(x + 11.66).

A quadratic function is given according to the following rule:

y = ax² + bx + c

\(\Delta = b^2 - 4ac\)

The solutions are:

\(x_1 = \frac{-b + \sqrt{\Delta}}{2a}\)

\(x_2 = \frac{-b - \sqrt{\Delta}}{2a}\)

In which:

\(\Delta = b^2 - 4ac\)

For this problem, the equation is:

x² + 12x - 10 = -4.

In standard format:

x² + 12x - 6 = 0.

Hence the coefficients are a = 1, b = 12, c = -6, and then the solutions are found as follows:

Applying the Factor Theorem, the equation is written as:

y = a(x + 0.34)(x + 11.66).

In which a is the leading coefficient.

There are infinite possible values for the leading coefficient, hence infinite equations with the same solution as the one given.

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It takes a machine at a seafood company 20 seconds to clean 3 pounds of shrimp. The rate of the machine is 0.15 pound per second

An equation is an expression that shows the relationship between two numbers and variables.

An independent variable is a variable that does not depend on any other variable for its value whereas a dependent variable is a variable that depend on any other variable for its value.

It takes a machine at a seafood company 20 seconds to clean 3 pounds of shrimp. Hence:

Rate of the machine = 3 pounds / 20 seconds = 0.15 pound per second

It takes a machine at a seafood company 20 seconds to clean 3 pounds of shrimp. The rate of the machine is 0.15 pound per second

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The factory overhead efficiency variance for May is $480 unfavorable.

What is overhead efficiency variance ?

The overhead efficiency variance measures the difference between the actual hours worked and the standard hours allowed, multiplied by the standard overhead rate.

Step 1: Budgeted overhead at 90% capacity:

Budgeted overhead = 6,120 DLHs * $3.00 per DLH = $18,360

Step 2: Budgeted overhead at 70% capacity:

Budgeted overhead = $15,640

Step 3: Standard hours at 70% capacity:

Standard hours = 6,120 DLHs / 90% * 70% = 4,760 DLHs

Step 4: Variable overhead rate:

Variable overhead rate = ($18,360 - $15,640) / (6,120 DLHs - 4,760 DLHs) = $2.00 per DLH

Step 5: Variable overhead efficiency variance:

Variable overhead efficiency variance = (4,760 DLHs - 5,000 DLHs) * $2.00 = $480 unfavorable

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Given:

Radius of circle is 13 cm

Height of triangle is 5 cm

To find:

Value of 'a' and 'b'

Steps:

To find value of 'a', we will use Pythagoras theorem as the triangle is a right angle triangle,

A² + B² = C²

\(a^{2} + 5^{2} = 13^{2}\)

\(a^{2} + 25 = 169\)

\(a^{2} = 169 - 25\)

\(a^{2} = 144\)

\(\sqrt{a^{2}}=\sqrt{144}\)

\(a = 12\)

Now to find the value of 'b', i will use law of cosine,

\(c=\sqrt{a^{2}+b^{2}-2ab(cos\beta ) }\)

\(12 = \sqrt{13^{2}+5^{2}-2(5)(13)(cos\beta )}\\12=\sqrt{169 + 25-130(cos\beta )}\\12=\sqrt{194-130(cos\beta )}\\144 = 194 - 130(cos\beta )\\50 = 130(cos\beta )\\cos\beta = 0.3846\\\beta = cos^{-1}(0.3846)\\\beta = 67.38\)

Therefore, the values of 'a' and 'b' is 12 and 67.38 respectively

Happy to help :)

If u need any help feel free to ask

The sum of expression \(1.723 \times 10^{2}\) and \(7.38 \times 10^{3}\) is \(7.5523 \times 10^{3}\). The numbers in scientific notation are added by summing the coefficients while keeping the exponent unchanged.

In scientific notation, numbers are expressed as a coefficient multiplied by a power of 10. To add numbers in scientific notation, we need to ensure that the powers of 10 are the same.

In this case, both numbers are already in scientific notation with powers of 10. We can directly add the coefficients while keeping the exponent the same.

Adding \(1.723 \times 10^2\) and \(7.38 \times 10^3\) gives us a sum of \(7.5523 \times 10^3\). The coefficient represents the numerical value, and the power of 10 indicates the magnitude.

Thus, the expression \(1.723 \times 10^2 + 7.38 \times 10^3\) evaluates to \(7.5523 \times 10^3\), indicating a significant increase in magnitude compared to the individual numbers.

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Step-by-step explanation:

5 - 2x >= -3

-2x >= -8 (subtract 5 on both sides)

x <= 4 (divide -2 on both sides, flip the sign)

Hence x = 5 is not a solution. (4)

5 is not a solution of the inequality

The inequality is given as:

\(5 -2x \ge -3\)

Subtract 5 from both sides of the inequality

\(5 - 5 -2x \ge -3 - 5\)

Evaluate the like terms

\( -2x \ge -8\)

Divide both sides by -2

\(x \le 4\)

The above inequality means that:

The possible solution of x are numbers that do not exceed 4.

Hence, 5 is not a solution of the inequality

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Answer:

An equation of the line with the given information with

m = 4 and point A(-1, -5) is:

Step-by-step explanation:

As the equation of a line in point-slope form is given by:

\(y-y_1=m\left(y-x_1\right)\)

where m is the slope.

Given:

Substituting the values in the equation of a line in point-slope form

\(y-y_1=m\left(x-x_1\right)\)

\(y\:-\:\left(-5\right)\:=\:4\:\left(x\:-\:\left(-1\right)\right)\)

\(y+5=4\left(x+1\right)\)

subtract 5 from both the sides

\(y+5-5=4\left(x+1\right)-5\)

\(y=4x-1\)

Therefore, an equation of the line with the given information

with m = 4 and point A(-1, -5) is:

Answer:

A=368 miles

B= 356.3 miles

Step-by-step explanation:

Given data

Let the two trains be A and B

A+B=724.3----------1

A-B=11.7--------------2

From eqn 1

A= 724.3-B

put this in place of A in eqn 2

724.3-B-B= 11.7

724.3-2B= 11.7

724.3-11.7= 2B

712.6=2B

B= 712.6/2

B= 356.3 miles

Put B=356.3 in eqn 1

A+356.3=724.3----------1

A= 724.3-356.3

A=368 miles

Answer:

W) 1/18=10/180

N) 2/15=4/30

F) 7/12= 84/144

S) 9/25= 36/100

D) 7/20=35/100

T) 9/10=36/40

M) 19/20=95/100

Step-by-step explanation:

W) is 10/180 as you need to multiply the numerator as the denominator.

N) is 4/30 as you need to multiply the numerator as the denominator.

F) is 84/144 as you need to multiply the numerator as the denominator.

S) is 36/100 as you need to multiply the numerator as the denominator.

D) is 35/100 as you need to multiply the numerator as the denominator.

T) is 36/40  as you need to multiply the denominator as the numerator.

M) is 95/100 as you need to multiply the numerator as the denominator.

The speed of both printers operating together is 1.333 hours which was found using the given data.

The formula used to explain the connection between speed, distance, and time is speed = distance/time.

Given: Newspapers can be printed twice as quickly on a modern printing press as they can on an old one. The old one takes four hours to publish the afternoon edition.

Let,

a = Speed of New printing press

b = Speed of Old printing press

x = Speed of both printers operating together

We know that,

(1/a)+(1/b)=(1/x)

(1/2)+(1/4)=(1/x)

(4/8)+(2/8)=(1/x)

6/8=1/x

x=8/6

x=1.333

Therefore, the speed of both printers operating together is 1.333 hours which was found using the given data.

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For the normal approximation to be valid, the sample size should be at least 30, which means that n should be greater than or equal to 30.

Assuming that the probability that each spin points up or down is 0.5, and we have n spins, then the probability of exactly n of them pointing up is given by

P(n) = (n C n) * (0.5)^n = (0.5)^n, where (n C n) is the number of ways to choose n items out of n, which is simply 1.

If n is large, the probability can be approximated using the normal distribution with mean and variance given by

μ = np = n * 0.5σ² = np(1 - p) = n * 0.25T he probability can be approximated as:

P(n) ≈ N(μ, σ) = N(np, sqrt(np(1 - p))), where N is the normal distribution with mean np and variance np(1 - p). Additional conditions for the approximation to be valid:

Therefore, for the normal approximation to be valid, the sample size should be at least 30, which means that n should be greater than or equal to 30.

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a and c are directly proportional to each other when a and b are directly proportional and b and c are directly proportional.

If a and b are directly proportional and b and c are directly proportional, it means that their ratios are equal. Direct proportionality implies that as one variable increases, the other also increases in proportion and as one variable decreases, the other also decreases in proportion.

Mathematically, this can be written as

a = kb and b = mc, where k and m are constants of proportionality.

Multiplying these two equations gives: a = kbm

Substituting the value of b from the second equation in the first equation, we get: a = kmc

Therefore, a and c are also directly proportional to each other with a constant of proportionality km.

Thus, if a increases by a certain factor, c will also increase by the same factor.

If a and b are directly proportional and b and c are directly proportional, then it can be concluded that a and c are directly proportional as well.

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Answer:

image is blurry i cant see it

Step-by-step explanation:

send another one plz

Answer:48

Step-by-step explanation:

The distribution becomes a special case when the parameter k is set to equal 1, indicating that it simplifies to a unique form under that specific condition.

When a distribution becomes a special case with a certain parameter, it means that the distribution has a unique and simplified form under that specific condition.

In this case, when the parameter k is set to equal 1, the distribution you are discussing simplifies to a special case of the general distribution.

To better understand the relationship between the distributions and the effect of setting k to 1, you should examine the formula for the given distribution and observe how the formula changes when k is set to 1.
To summarize, the distribution becomes a special case when the parameter k is set to equal 1, indicating that it simplifies to a unique form under that specific condition.

To further explore this concept, you should analyze the distribution's formula and observe the changes that occur when k is set to 1.

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Answer:

X = 4

Step-by-step explanation:

First you subtract X from both sides of the equation and then simplify, then divide both sides of the equation by the same term then Simplify one more time.

Answer:

you can line up the corners of the piece of paper like an roller

Step-by-step explanation:

In the theater, that have 1,464 seats.

1426 seats are in "regular" sections

38 seats are  "premium" front-row section

The seat arrangement is solved by division. In this case the 62 equal spaced is the divisor while the number of seats is the in each row is the quotient

The division is as follows

1464 / 62

= 23 19/31

The number of seats in the regular section is 23 * 62 = 1426

The remainder will be arranged in premium front row

using equivalent fractions

19 / 31 = 38 / 62

the remainder is 38 and this is the seat for the premium front row section

OR 1464 - 1426 = 38 seats

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