is y= -6x proportional?

Answer:78.75

Step-by-step explanation:21 percent of 4500 945 divided my 12 which is 78.75

Answer:

C. 3x + 2(2x + 3) = 9

Step-by-step explanation:

We are given the following relation:

y = 2x + 3

And we want to substitute into:

3x + 2y = 9.

So

[tex]3x + 2(2x + 3) = 9[/tex]

Which is given by option C.

Answer:

$2,475

Step-by-step explanation:

Given that :

Worth of IRA retirement = $9900

Alonzo's tax bracket = 25%

Amount to be paid as tax upon withdrawal :

25% * $9900

0.25 * $9900

= $2,475

Answer:

the answer is 45.9

Step-by-step explanation:

Answer:

45.9

Step-by-step explanation:

Answer:

Linear

Step-by-step explanation:

The equation y = 3x - 7 is a linear.

A linear equation represents a straight line on a graph, where the variables (in this case, x and y) have a linear relationship.

The equation has a constant coefficient (3) multiplying the variable (x), and a constant term (-7) added or subtracted.

An exponential equation involves variables in the exponent, such as

y = abˣ, where a and b are constants.

The variable x is in the exponent, indicating exponential growth or decay.

Since the equation y = 3x - 7 has a linear relationship and represents a straight line, it is classified as a linear equation.

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Answer:

2

Step-by-step explanation:

2x + 1 =5

2x=4

x=2

First isolate the term containing x which is 2x.

Subtract 1 from both sides to get 2x = 4.

Since x is being multiplied by 2, divide both sides by 2 and we have x = 2.

Answer:

The sign of all will be positive because 48  lie in 1st quadrant

Step-by-step explanation:

sin(48)= 0.743

cos(48)=0.669

tan(48)=1.11

cosec(48)=1.345

sec(48)=1.495

cot(48)=0.90

The sign of all will be positive because 48  lie in 1st quadrant.

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.

here, we have,

sin(48)= 0.743

cos(48)=0.669

tan(48)=1.11

cosec(48)=1.345

sec(48)=1.495

cot(48)=0.90

Hence, The sign of all will be positive because 48  lie in 1st quadrant.

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Work Shown:

(6x-2)-(-x+5)

6x-2+x-5

(6x+x)+(-2-5)

7x-7

When distributing the negative, don't forget to apply the negative to every term inside the parenthesis. So that means -x flips to x, while +5 flips to -5.

Answer:

[tex]t = -7\ \ \ or\ \ t = 10[/tex]

Step-by-step explanation:

Given

[tex]f(t) = 2t^2 - 6t[/tex]

Required

Find t, when [tex]f(t) = 140[/tex]

Substitute 140 for f(t) in [tex]f(t) = 2t^2 - 6t[/tex]

[tex]140 = 2t^2 - 6t[/tex]

Divide through by 2

[tex]\frac{140}{2} = \frac{2t^2 - 6t}{2}[/tex]

[tex]70 = t^2 - 3t[/tex]

[tex]t^2 - 3t = 70[/tex]

Subtract 70 from both sides

[tex]t^2 - 3t - 70= 70 - 70[/tex]

[tex]t^2 - 3t - 70= 0[/tex]

Expand

[tex]t^2 -10t + 7t - 70 = 0[/tex]

Factorize:

[tex]t(t - 10) + 7(t - 10) = 0[/tex]

[tex](t + 7)(t - 10) = 0[/tex]

Split:

[tex]t + 7 = 0\ \ \ or\ \ t - 10 = 0[/tex]

[tex]t = -7\ \ \ or\ \ t = 10[/tex]

Hence, the values of t are -7 and 10

Answer:

C) 10

Step-by-step explanation:

Answer:

the point C(x,0) = C(3,0) is the point where AC + BC is minimum.

Step-by-step explanation:

Solution:

This question is very simple to solve.

We need to find the x and y elements of point C, which is on the x-axis such that AC + BC = minimum.

So,

As, we have said that, point C is on the x-axis then, it means its y co ordinate will be equals to zero.

Now, we just need to find x co ordinate of the point C.

C (x, 0) as it is on the y -axis.

So, for that, we need to take the mirror image of point B. It means, its x co-ordinate will remain same but y co-ordinate will be negative.

So, our mirror image of B(6,9) = B'(6,-9)

Now, we have to join the points A and B'. Point C, which we are trying to find is the point where this line AB' intersects with x - axis.

So,

Slope of the line AB'

m = [tex]\frac{y1-y2}{x1-x2}[/tex]

m = [tex]\frac{3- - 9}{2 - 6}[/tex] =  [tex]\frac{3+9}{2-6}[/tex]

m = [tex]\frac{12}{-4}[/tex] = -3

m = slope = -3

We also know that the equation of line:

y = mx + b

where b = y-intercept.

Now, we need to find the y - intercept of this line.

y = (-3) x + b

where y = -9 and x = 6

so,

-9 = (-3) (6) + b

b = -9 + 18

b = 9 = y - intercept.

SO,

y = mx + b

and For point C(x, 0) y = 0

0 = -3x + 9

Solve for x:

3x = 9

x = 3

Hence, the point C(x,0) = C(3,0) is the point where AC + BC is minimum.

Answer:

x=(3-y)/2  

y=3-2x)

Step-by-step explanation:

2x+y = 3

x=(3-y)/2

y=3-2x)

Answer:  [tex]X =\frac{3-y}{2}[/tex]  OR  [tex]y = 3 - 2x[/tex]

Step-by-step explanation:

Answer:

-1

Step-by-step explanation:

Well, at g(0), x = 0, and -2 ≤ 0 < 1, so according to the function definition, we'll need to use [tex]g(x)=-x-1[/tex] to evaluate g(0).

Plugging in 0 for x in this expression gives us [tex]g(0)=-0-1=-1[/tex].

Step-by-step explanation:

True

When an equation has one solution,The variable terms on both sides are the same

Answer:

true

hope it helps

thank you.....

Answer:

The mean of the sampling distribution of p is of 0.7 and the standard deviation 0.029

Step-by-step explanation:

We use the Central Limit Theorem to solve this question. So

Central Limit Theorem

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

Percentage of 70%, sample of 250.

This means that [tex]p = 0.7, n = 250[/tex]

Mean:

[tex]\mu = p = 0.7[/tex]

Standard deviation:

[tex]s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.7*0.3}{250}} = 0.0290[/tex]

The mean of the sampling distribution of p is of 0.7 and the standard deviation 0.029

Answer:

μp^ ​​​​= 0.7

σp^ = √0.7(0.3)/250​​​

Step-by-step explanation:

I had this question on khans

Answer:

One group is completely made of cones whilst the other has cylinders

Step-by-step explanation:

Answer: In that equation, the -30 represents the rate of change.

Step-by-step explanation

Answer:

22

Step-by-step explanation:

Sum of two integers is 15. One integer is -7 and suppose other integer is x. Then  

x+(-7)=15

x=22

Answer:

Addison worked 5 hours

Step-by-step explanation:

Proportions

A direct proportion is a relation between variables where their ratio is a constant value. This means that if y and x are proportional, then:

y = kx

Where k is the constant of proportionality.

The relationship between the number of kilograms of dough Addison prepares (y) is proportional to the number of hours he works on it (x).

Knowing he prepared y=30 kilograms of dough after t=3 hours, we substitute in the function:

30 = 3k

Solving for k:

k = 30/3 = 10

The relationship is:

y = 10x

If he prepared y=50 kg of dough, then:

50 = 10x

Solving for x

x = 50/10 = 5

Addison worked 5 hours

Answer:

[tex]y= -\frac{7}{3}x -7[/tex]

Step-by-step explanation:

Answer:

y

=

−

7

3

x

−

7

Step-by-step explanation:

Brainliest?

Answer:

no solutions or infinite solutions

Step-by-step explanation:

Answer: 41-7=m

Mike is 34 yrs

Step-by-step explanation:

Answer:

$8775 is the value of the investment after seven years

Answer:

Step-by-step explanation:

o=-8

-56=7*(-8)=-56