8x+9-6x-7 * pls help

Answer:

8

Step-by-step explanation:

Answer:

At 4:58.

Step-by-step explanation:

The time for the 700th hiccup is 5 * 7000

= 3500 seconds.

= 3500/60

= 58.33 minutes,

Answer:

For this case we have the following functions transformation:

Vertical expansions:

To graph y = a * f (x)

If a> 1, the graph of y = f (x) is expanded vertically by a factor a.

f1 (x) = (3x) ^ 2

Horizontal translations

Suppose that h> 0

To graph y = f (x-h), move the graph of h units to the right.

f2 (x) = (3x-6) ^ 2

Vertical translations

Suppose that k> 0

To graph y = f (x) + k, move the graph of k units up.

g (x) = (3x-6) ^ 2 + 3

Answer:

expanded horizontally by a factor of 3, horizontal shift rith 6, vertical shift up 3

Step-by-step explanation:

Answer:

For this case we have the following functions transformation:

Vertical expansions:

To graph y = a * f (x)

If a> 1, the graph of y = f (x) is expanded vertically by a factor a.

f1 (x) = (3x) ^ 2

Horizontal translations

Suppose that h> 0

To graph y = f (x-h), move the graph of h units to the right.

f2 (x) = (3x-6) ^ 2

Vertical translations

Suppose that k> 0

To graph y = f (x) + k, move the graph of k units up.

g (x) = (3x-6) ^ 2 + 3

Answer:

expanded horizontally by a factor of 3, horizontal shift rith 6, vertical shift up 3

Answer:

y=-2x+7

Step-by-step explanation:

Please gimme brainliest!!

Answer:

y-3=-2(x-2)

Step-by-step explanation:

y-y1=m(x-x1)

y-3=-2(x-2)

The given statement "The estimated simple linear regression equation minimizes the sum of the squared deviations between each value of y and the line" is true because it provides the best fit line.

The simple linear regression equation estimates the relationship between two variables - a dependent variable (y) and an independent variable (x) - by fitting a straight line through the data points.

The line is chosen so that the sum of the squared deviations (also known as the sum of squared errors or SSE) between the observed values of y and the predicted values of y on the line is minimized.

In other words, the simple linear regression equation finds the line that is closest to all the data points in terms of the vertical distance between the points and the line.

This line is chosen to minimize the sum of squared deviations because it provides the best estimate of the relationship between x and y, and it allows for the prediction of y values for a given x value.

Thus, minimizing the sum of squared deviations is a crucial aspect of the simple linear regression equation because it ensures that the line of best fit provides the most accurate estimate of the relationship between the variables.

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The parent function of the quadratic family is f(x) = x2. A transformation of the graph of the parent function is represented by the function g(x) = a(x − h)2 + k, where a ≠ 0.

A quadratic function is one of the form f(x) = ax2 + bx + c, where a, b, and c are numbers with a not equal to zero.

A parabola is the shape of a quadratic function's graph. Although the "width" or "steepness" of a parabola can vary as well as its direction of opening, they all share the same fundamental "U" form. The three graphs in the image below are all parabolas.

A quadratic function's graph takes the form of a parabola. The parabola will open upward if the value of the "a" term is positive, and downward if the value is negative

A function can be raised by adding outside of it: f (x) + b raises f (x) by b units. The same principles apply for moving a function down, except instead of subtracting a positive integer, f (x) b represents f (x) moved down b units.

You can represent a vertical (up, down) shift of the graph of f(x)=x2 by adding or subtracting a constant, k.

f(x)=x2+k

By increasing or decreasing the output or the input, you can change the direction of the function's graph to the right, left, up, or down. A function's output can be increased to move the graph up. The graph is shifted downward when a function's output is subtracted from.

The output has a constant added to it, which causes the vertical shift. For a positive constant, move the graph upward; for a negative constant, move it below. A constant supplied to the input causes a horizontal shift. For a positive constant, move the graph to the left; for a negative one, move it to the right.

You can represent a horizontal (left, right) shift of the graph of f(x)=x2  by adding or subtracting a constant, h, to the variable x, before squaring.

f(x)=(x−h)2

If h>0, the graph shifts toward the right and if  h<0 , the graph shifts to the left.

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Answer: (-1,2)

Step-by-step explanation:

Your solution is the intersecting point.

The value of set of side lengths can be used to construct a triangle are,

⇒ 3, 5, 7

We have to given that;

To find the set of side lengths can be used to construct a triangle.

Now, We know that;

The sum of two side of a triangle is always greater than third side.

Hence, We can check all options as;

⇒ 3, 4, 9

Since, 3 + 4 = 7 < 9

Hence, It does not form a triangle.

⇒ 3, 5, 7

Since, 3 + 5 = 8 > 7

Hence, It form a triangle.

⇒ 3,5, 8

Since, 3 + 5 = 8 = 8

Hence, It does not form a triangle.

⇒ 2, 6, 8

Since, 2 + 6 = 8 = 8

Hence, It does not form a triangle.

Thus, The value of set of side lengths can be used to construct a triangle are,

⇒ 3, 5, 7

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Answer:

4

Step-by-step explanation:

Yep

ANSWER

0.3228

EXPLANATION

We want to find,

But since X is normally distributed, we have to find the z-score for a standard normal distribution,

So the probability we can find in the standard normal distribution table is,

In the z-score table, we have to find z = 0.46,

The table shows the probability that z is less than that value. We want to find the probability that z is greater than that value. This is,

The probability that a teacher's salary is greater than $37,800 is 0.3228.

Answer:

The fourth person is 34 years old.

Step-by-step explanation:

Step 1: Find ages of the 3 people running for election

42*3=126  Their ages combined is 126.

Step 2: Find the ages of the 4 people running for election.

40*4=160

Step 3: Subtract the two ages.

160-126=34.  

The 4th person is 34.

Answer:

3/9 + 5/9 and 4/9 + 4/9 are both equal to 8/9.

Answer:

Second option and fifth option

Step-by-step explanation:

Since they are all with a denominator of 9 we do not need to do anything else except add them up.

The first one is equal to 7/9

Second is 8/9

Third is 6/9

Fourth is 9/9

Fifth is 8/9

Answer:

Step-by-step explanation:

8(1 + 2i) -  (7 - 3i) = 8*1 + 8*2i + 7*(-1) - 3i*(-1)

                          = 8 + 16i -7 + 3i

                          = 8 - 7 + 16i + 3i

                          = 1 + 19i

Daniel forgot to multiply 2i by 8

Answer:

A , He did not apply the distributive property correctly for 8(1 + 2i).

on edge

Step-by-step explanation:

Answer:

(-3, -4)

Step-by-step explanation:

Rotating a point that has the coordinates (x,y) 180° about the origin in a clockwise or counterclockwise direction, produces a point that has the coordinates (−x,−y). Ari's error was that she rotated "N" by 90 degrees instead of 180 degrees, as the rule for a 90 degree rotation is (-y, x). Therefore, the correct coordinated for N' can only be (-3,-4)

Answer:

It’s an expression.

Step-by-step explanation:

An expression is technically an equation but without the answer.

Answer:

yes

Step-by-step explanation:

The difference between an equation and an expression is that an equation as an equals sign. An equation shows that 2 expressions are equal to each other.

Expression:

\(3x-7\)

Equation:

\(3x-7=5y\)

For this combination can be used , the answer would be  639450 ways

What is combination?

In arithmetic, a combination may be a choice of things from a group that has distinct members, such the order of choice doesn't matter.

Main body:

Given, the total number of members in the chorus are 30.

Also, it is given that 6 members from the chorus have to be

chosen for a special performance.

The number of ways of choosing r people out of given n people

is given by the expression

nCr

= n!/r!(n-r)!

So the number of ways of choosing 6 members out of 30 are

³⁰C₆

=  30!/24!6!

= 639450 ways

But since only the expression to represent the number of ways

was asked not the exact number of ways we can leave the

answer as ³⁰C₆ .

Hence total number of ways is 639450 ways.

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Answer:

The value of X is:

X= -3

The value of Y is:

Y= -5

Step-by-step explanation:

So the solution for

2x-3y=9

-5x-3y=30 is

(-3,-5)

Therefore, the compound interest of the annuity due of BD 400 paid each 4 months for 6.2 years at a nominal rate of 3% per annum is BD 40,652.17.

Compound interest of an annuity due can be calculated using the formula:A = R * [(1 + i)ⁿ - 1] / i * (1 + i)

whereA = future value of the annuity dueR = regular paymenti = interest raten = number of payments First, we need to calculate the effective rate of interest per period since the nominal rate is given per annum. The effective rate of interest per period is calculated as

:(1 + i/n)^n - 1 = 3/1003/100 = (1 + i/4)^4 - 1

(1 + i/4)^4 = 1.0075i/4 = (1.0075)^(1/4) - 1i = 0.0303So,

the effective rate of interest per 4 months is 3.03%.Next, we can substitute the given values in the formula:

A = BD 400 * [(1 + 0.0303)^(6.2 * 3) - 1] / 0.0303 * (1 + 0.0303)A = BD 400 * [4.227 - 1] / 0.0303 * 1.0303A = BD 400 * 101.63A = BD 40,652.17

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The errors in the equations are given as follows:

a. We should multiply the constants 4 and 3, not add them, hence the result would be 12a^7.

b. The exponent one was forgotten, hence the correct result is of x^(6 + 1 + 3) = x^10.

c. The terms have different bases, hence the exponents cannot be added.

When two terms with the same base and different exponents are multiplied, we must keep the bases and then add the exponents.

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The number in the question that gives 28 after the operations is; 3

We are told that the product of seven and the sum of a number and 1 is 28.

Let the number be x. Thus;

7(x + 1) = 28

Use division property of equality to divide both sides by 7.

7(x + 1)/7 = 28/7

(x + 1) = 4

Use subtraction property of equality to subtract 1 from both sides to get;

x + 1 - 1 = 4 - 1

x = 3

Therefore, in conclusion the number is 3.

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Answer:

3

Step-by-step explanation:

k12

When we solve 864.36 divided by 5.25 (i.e. 864.36/5.25), it will give us an answer of 164.64.

First write out the problem: 864.36 ÷ 5.25. We will write the dividend (the number being divided) and the divisor (the number dividing the dividend). In this case, the dividend is 864.36 and the divisor is 5.25.

Now, we will move the decimal point in the dividend to the right as many places as necessary to make the divisor a whole number. After that, we perform the division: divide the adjusted dividend by the adjusted divisor. 8643.6 divided by 52.5 is equal to 164.49524.

Finally, we round the quotient (the answer) to the desired number of decimal places, if necessary. In this case, rounding to two decimal places, we get 164.50.

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For the given inequality 14 - 3f > 2 the option that comes out be correct is

f < 4 i.e option 2.

An inequality in mathematics is a relation that compares two numbers or other mathematical expressions in an unequal way.The majority of the time, size comparisons between two numbers on the number line are made.

Here, "Less than" and "Greater than" have new meanings.

Less-than sign is the symbol for such phrase.

14 - 3f > 2

adding 3f on both sides:

14 - 3f + 3f > 2 + 3f

14 > 2 + 3f

subtracting 2 on both sides:

14 - 2 > 2 + 3f - 2

12 > 3f

dividing 3 on both sides:

(12)/3 > (3f)/3

4 > f

which means f < 4

Therefore, option 2 is correct.

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Factoring quadratics is a technique used to simplify and solve quadratic equations. When the leading coefficient (a) of the quadratic equation is not equal to 1, it becomes slightly more complicated to factor. To factor quadratics when a does not equal 1, one must use a method called grouping.

The first step is to multiply the coefficient of the leading term (a) by the constant term (c) of the quadratic equation. This gives you two numbers that add up to the coefficient of the middle term (b). These two numbers will be used to group the terms in the quadratic equation.

Next, the quadratic equation is split into two parts, where each part includes two terms that are grouped based on the two numbers obtained in the first step. From here, factoring can be done using the distributive property.

Once the equation is factored, it can be solved by setting each factor equal to zero and solving for the variables. It's important to remember to check solutions by plugging them back into the original equation.

In conclusion, factoring quadratics when a does not equal 1 involves using a method called grouping to factor the equation. This technique is slightly more complicated than when a equals 1, but it can still be easily mastered with practice.

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Answer:

150.266 L

Step-by-step explanation:

To add the following quantities, we need to convert them to the same unit. We can convert all of them to milliliters and then add them together.

14L = 14,000 ml

123L = 123,000 ml

12L = 12,000 ml

Now we can add them together:

14,000 ml + 875 ml + 123,000 ml + 321 ml + 12,000 ml + 70 ml = 150,266 ml

Therefore, the sum of the given quantities is 150,266 ml.

Answer:

ED = 4 units

Step-by-step explanation:

Observing the figure given to us, we can deduce the following:

=>CE = EA (because point E is the midpoint of CA)

Therefore, if CE = EA = x unit, CA = 2x

=>Also, CD = DB (because point D is the midpoint of CB)

Therefore, if CD = DB = y, CB = 2y

Thus, CA/CE = CB/CD = 2 (2x/x = 2y/y)

Going by the above ration we got comparing the ratio of the corresponding sides of ∆CAB and ∆CED (2:1), we can conclude that ∆CAB ~ ∆CED

Using the ratio of the corresponding sides of ∆CAB to ∆CED = (2:1), measure of segment ED is calculated below:

AB/ED = 2/1

8/ED = 2/1

Cross multiply

8 × 1 = 2 × ED

Divide both sides by 2

8/2 = ED

ED = 4 units

Answer:

x = 6

∠PQR = 29

Step-by-step explanation:

Sum of interior angles in a triangle is 180,

15x - 4 + 4x + 5 + 65 = 180

15x + 4x + 5 - 4 + 65 = 180

19x + 1 + 65 = 180

19x + 66 = 180

19x = 180 - 66

19x = 114

x = 114 / 19

x = 6

∠PQR = 4x + 5

Substitute x = 6,

∠PQR = 4 ( 6 ) + 5

          = 24 + 5

∠PQR = 29

Step-by-step explanation:

- - 4 turns into + 4

then   3/4 + 7/12 + 4   find common denominator to add or subtract fractions

    9/12  + 7/12  + 48/12   = ( 9+7+48 ) / 12 = 64/12 = 5  1/3

Answer:\

\(10^{7}\)

Step-by-step explanation:

keep the number, add the exponents

Answer:

B

Step-by-step explanation:

Answer:

B. \(\frac{x^2}{3^2} +\frac{y^3}{2^2} =1\)

Step-by-step explanation: