In need everyone's help!!!! 6-y+3 Answers: A -1 B 0 C 3 D 6

Answer:

0, 2, 4

Step-by-step explanation:-2 + 2 = 0 + 2= 2 + 2 = 4

The function table is solved and the quadratic equation is f ( x ) = -3x²

A quadratic equation is a second-order polynomial equation in a single variable x , ax² + bx + c=0. with a ≠ 0. Because it is a second-order polynomial equation, the fundamental theorem of algebra guarantees that it has at least one solution. The solution may be real or complex.

The roots of the quadratic equations are

x = [ -b ± √ ( b² - 4ac ) ] / ( 2a )

where ( b² - 4ac ) is the discriminant

when ( b² - 4ac ) is positive, we get two real solutions

when discriminant is zero we get just one real solution (both answers are the same)

when discriminant is negative we get a pair of complex solutions

Given data ,

Let the quadratic equation be represented as A

Now , the value of A is

f ( x ) = -3x²

when x = -2

f ( -2 ) = -3 ( -2 )²

f ( -2 ) = -12

And , when x = 0

f ( 0 ) = 0

when x = 2

f ( 2 ) = -12

when x = 4

f ( 4 ) = -48

Hence , the function table is f ( x ) = { -12 , 0 , -12 , -48 }

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Answer:

C. 36

Step-by-step explanation:

It is going up by 8 units each time.

For example it goes 4,12,20,28

4+8=12

12+8=20

20+8=28

So, add 8 to 28

28+8=36

Answer:

  y = -4x - 11  

Step-by-step explanation:

  slope intercept form:

     y = mx + b

  Find y-intercept with slope of -4 and passes through point (-3, 1):

    y = mx + b

    1 = -4(-3) + b

    1 = 12 + b

    b = -11                         <======== y-intercept

  Equation using the given slope of -4 and y-intercept above:

     y = mx + b

     y = -4x - 11

Answer:

is this answer correct?

let me know in the comment section below!

Step-by-step explanation:

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If you have an annual interest rate of 7.5%, then semiannual interest rate is  1.05 %

percentage, a relative value indicating hundredth parts of any quantity.

The interest rate is compounded semiannually.

The annual interest rate of 7.5%

We need to find the semi annual rate.

Divide the rate by two in order to figure out the semi-annual payment.

Annual rate is 7.5%

Anually rate 1+7.5/100

semi Anually rate 1+7.5/200

semi Anually rate 1.05

Hence,  If you have an annual interest rate of 7.5%, then semiannual interest rate is  1.05 %

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Answer:

153

Step-by-step explanation:

Triange area = 1/2 b*h

= 1/2 (7)*(9)

=31.5 (for 1 triangle)

2(31.5) = 63 (for 2 triangles, left and right)

Rectangle area = b *h

= 10*9

=90

Total = 2 triangles + rectangle

63+90 = 153

Answer: 108

Step-by-step explanation: the formula, 10+7(2)/2 x 9 = 108

Step-by-step explanation:

radius = 17 m

diameter = 34 m

circumference= 1814.92

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Answer:

g(-2)= 5*(-2) + 1

= -10+1

= -9

Answer:

g(-2) = -9

Step-by-step explanation:

g(x)=5x+1,

Let x = -2

g(-2) = 5(-2) +1

        = -10 +1

         = -9

Answer:$2.97

Step-by-step explanation: 35 divided by 12 = 2.97

Answer:

B 2.5

Step-by-step explanation:

10 x 2.5 = 25

6 x 2.5 = 15

Answer:

D

Step-by-step explanation:

Answer:

the median best describes the data

the mean is less than 5 of the data points

the range only describes 2 of the data points

thus the median best describes the data

Step-by-step explanation:

Median is the number in the centre of a set of observations

0. 78, 84,85,90,91,92, the median is 85

range = highest - lowest = 92 - 0 = 92

mean = sum of observations / number of observations = 74.3

Answer:

I am assuming you want the percentage increase in the price.

Step-by-step explanation:

The percentage increase is ( 15/50) * 100

= 15 * 2

= 30%.

Answer:

V=37.68

Step-by-step explanation:

The formula for the volume of a cone is V=1/3πr^2h.  First, plug the values in to the varibles to get V=1/3π3^2(4), since 3 is the radius and 4 is the height.  Now simplify the equation.  

V=1/3π3^2(4)

V=1/3π9(4)

V=1/3π36

Multiply 36 by pi, which the equation wants you to use as 3.14.  

V=1/3(113.04)

Now simplify to get V=37.68.

I hope this helps!  Have a great day/night!  

Answer:

The room has a width of three metres, and a length of seven metres.

Step-by-step explanation:

This is solvable using a system of equations.  First, we're told that its length is four metres more than its width:

l = w + 4

We're also told that it has a perimeter of 20, and know that the perimeter of a rectangle is equal to two times its length plus two times its length.  We can plug the given perimeter into that relationship, giving us:

20 = 2l + 2w

With that, we can simply substitute our first equation into it, replacing l, and then solve for w:

20 = 2l + 2w

20 = 2(w + 4) + 2w

20 = 2w + 8 + 2w

12 = 4w

w = 3

So the width is three metres.  We also know that the length is four metres more than that, telling us that it's seven metres.

We can check that my calculating the perimeter with those numbers and making sure it still matches 20

2 * 3 + 2 * 7

= 6 + 14

= 20

so the answer is good.

A compound inequality is created by joining two or more inequalities together using or or and (also known as a combined inequality). For a value to be the answer to an or inequality, it simply needs to make one part of the inequality true. To be effective, a solution to an inequality must make both sides true. Examples are x3 or x>2.

A sentence having two inequality statements connected by the words "or" or "and" is referred to as a compound inequality. The conjunction "and" denotes the simultaneous truth of both statements in the compound sentence. It is when the solution sets for the various statements cross over or intersect.

Divide a compound inequality into two independent ones before attempting to solve it. Choose either a union of sets ("or") and an intersection of sets as the appropriate response ("and"). Then, resolve the graph and all inequalities.

The values that belong to both graphs—where the graphs overlap—are found by first examining the graphs of each individual inequality in order to obtain the answer to a "and" compound inequality. We graph each inequality for the compound inequality x>3 and x2. Next, we search for areas where the graphs "overlap."

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The exponential distribution is a probability distribution that models the time between events in a Poisson process, where events occur randomly and independently at a constant average rate.

It is commonly used in reliability theory, queuing theory, and other fields to model the failure or waiting times of systems.

(a) The mean time to decay for Cobalt-60 is 5.27 years.

(b) The standard deviation of the decay time is 2.6355 years.

(c) The 99th percentile is 13.6825 years.

(d) The mean time of the experiment is 15.8175 years and the standard deviation is 4.86788 years.

Note: The answers are calculated based on the exponential distribution of radioactive decay with a half-life of 5.27 years for Cobalt-60.

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Let \(n=0\). Then \(0^3 = 0\) but 0 > 0 is a false statement.

The value of the sum of squares due to regression (SSR) when the total sum of squares (SST) is 27.32 and the sum of squares due to error (SSE) is 5.89 is 21.43

For given question,

The total sum of squares (SST) is 27.32 and the sum of squares due to error (SSE) is 5.89

A common measure used in regression analysis is the sum of squares total (SST). The square of each difference is added to the sum of squares to obtain the squared disparities between individual data points and their mean. The variance is calculated using the sum of squares, which is also used to assess how well a regression curve fits the data.

We will use the total sum of squares (SST) is given as the summation of the sum of squares due to regression (SSR) and sum of squares error (SSE);

SST = SSR + SSE

Here, SST = 27.32 and SSE = 5.89

Substitute the values in the formula, we get

⇒ 27.32 = SSR + 5.89

⇒ SSR = 27.32 - 5.89

⇒ SSR = 21.43

Therefore, the value of the sum of squares due to regression (SSR) when the total sum of squares (SST) is 27.32 and the sum of squares due to error (SSE) is 5.89 is 21.43

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Answer:

33

Step-by-step explanation:

5(6) + 3

30 + 3

= 33

Answer:

Step-by-step explanation:g(-3) = 3(-3) = -9

f(g(-3)) = f(-9) = 2(-9) -1 = -18 -1 = -19

The initial value problem x^2y'' - 2xy' + 2y = ln(x), y(1) = 1, y'(1) = 0 is a second-order linear differential equation with variable coefficients. The equation involves the second derivative of the unknown function y, its first derivative, and the function itself. The initial conditions are specified at the point (1, 1) with a given value for y and its derivative.

The equation x^2y'' - 2xy' + 2y = ln(x) represents a second-order linear differential equation. It contains the unknown function y and its derivatives up to the second order. The variable coefficients in the equation, x^2, -2x, and 2, introduce dependence on the independent variable x.

The initial conditions y(1) = 1 and y'(1) = 0 specify the values of y and its derivative at x = 1. These initial conditions provide the starting point for solving the differential equation and finding a particular solution that satisfies both the equation and the given initial conditions.

Solving this initial value problem involves finding the general solution to the differential equation and applying the initial conditions to determine the specific solution that satisfies the given conditions. The solution to this problem will be a function y(x) that meets both the differential equation and the initial conditions y(1) = 1 and y'(1) = 0.

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Step-by-step explanation:

Area of the large trapezoid :

   height * average of bases

     area = 8 * (6+11)/2 = 68 cm^2

  MINUS the area of the parallelogram   4x3 =12 cm^2

68 - 12 = 56 cm^2 = shaded region

The amount of cardboard needed to make a cuboid box of dimensions 8 inch, 3 inches and 3 inches is 114 sq. inches.

Let the three dimensions(height, length, width) be x, y,z units respectively.

The surface area of the cuboid is given by

\(S = 2(a\times b + b\times c + c\times a)\)

For this case, tissue box is almost cuboid shaped.

Also, its dimensions are given being 8 inches, 3 inches and 3 inches.

Suppose we measure the amount of cardboard needed in terms of area, then, the amount of cardboard needed to make that box(without any whole, full cuboid) is equal to the area of its surface(either outer or inner if we assume 0 inches thickness of cardboard),

Thus, we get:

Amount of cardboard needed = surface area of cuboid box with dimensions 8 by 3 by 3 (in inches)

= \(2(8 \times 3 + 3 \times 3 + 3 \times 8) = 114 \: \rm in^2\)

Thus, the amount of cardboard needed to make a cuboid box of dimensions 8 inch, 3 inches and 3 inches is 114 sq. inches.

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Answer:

735x0.01

Step-by-step explanation:

it will take her 34 mins coz I said so innit

Answer: 68.3

Step-by-step explanation: 8.60x7+8.10=68.3

The probability that a randomly chosen part is defective is 0.16, or 16%.

The probability that a randomly chosen part is defective, we need to use the law of total probability.

Let \($D$\) be the event that a part is defective and let \($M_i$\) be the event that the part came from machine \($i$\), for \($i = A, B, C$\).

Then we have:

\($P(D) = P(D|M_A)P(M_A) + P(D|M_B)P(M_B) + P(D|M_C)P(M_C)$\)

60% of the products come from machine A, 30% from machine B, and 10% from machine C.

Therefore:

\($P(M_A) = 0.6$\)

\($P(M_B) = 0.3$\)

\($P(M_C) = 0.1$\)

The probability of a part being defective is 10% if it comes from machine A, 30% if it comes from machine B, and 40% if it comes from machine C.

Therefore:

\($P(D|M_A) = 0.1$\)

\($P(D|M_B) = 0.3$\)

\($P(D|M_C) = 0.4$\)

Substituting these values into the law of total probability, we get:

\($P(D) = 0.1 \cdot 0.6 + 0.3 \cdot 0.3 + 0.4 \cdot 0.1 = 0.16$\)

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Answer:

Step-by-step explanation:

4x + 2y = 6

isolate the y term

2y = -4x + 6

divide by the coefficient of y

y = -2x + 3