pls helpppp right answers only with explaintion.

A pool manager mixes 2 3/4 gallons of water with 1 1/4 gallons of a chemical to get a particular cleaning solution for a swimming pool.

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Since no equation of the line, or graph is provided in the question statement, considering the line to be [3x +4y = 12], the y-intercept of the line is 3.

[3x +4y = 12] and then, determine it's y-intercept.

To solve this question, we can use two methods:

The standard equation of line is (y = mx + c), where, "m" is the slope of the line, and "c" is the y-intercept. Converting [3x +4y = 12] to the form of the standard equation, we get,

3x+4y=12\\or,4y=-3x+12\\or,y=\frac{-3x+12}{4}\\ or,[y=(\frac{-3}{4})x+3]...(i)

Now comparing (i) to the standard equation of line, we can identify that

(c = 3), i.e., y-intercept of the line [3x +4y = 12] is 3.

Another way we can determine the y-intercept of a line is by, substituting (x = 0) and then solving the equation for "y".

Y-Intercept: The y-intercept is the point on a cartesian plane, where a graph crosses the y-axis, i.e., the value of y when (x = 0).

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Answer:

4s-$300

Step-by-step explanation:

Two pieces of information given describe Jessica's salary in relation to her starting salary.  This information is that she makes nearly four times her starting salary (multiplication) and the exact amount she is short of exactly four times is $300 (subtraction).  As with the order of mathematical operations, start with multiplication, then put the subtraction into the expression.

s

4s

4s-$300

This final expression shows how much she is making now in terms of her starting. salary

The acceleration of gravity of the satellite, as compared to the acceleration of gravity on the surface of Mars is (D) 1/16.

The term Acceleration defined as the gravity at the surface of Mars is given by the formula

Gₙ = GM/R²

where

M refers mass of Mars

R refers radius of Mars

Here we need to find if we take a point which is at height 3 times the radius of Mars from its surface.

While we take the height 3 times the radius of Mars from its surface.

The it can be written as,

=> Gₙ = GM/(3R + R)²

When we expand it then we get.

=> Gₙ = GM/16R²

Therefore, the resulting gravity on the surface of the mars is 1/16.

So, the option (D) is correct.

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Answer: an=-2(an-1), a1=3.5

Step-by-step explanation: took the quiz and got it right

An = -3.5(-2)ⁿ⁻¹ and -3.5  are the Nth and first terms of the above sequence, respectively.

Every term in a geometric series is obtained by multiplying the term before it by the same number. Aₙ = a₁ rⁿ⁻¹ is the general phrase for it. The common ratio is denoted by the number r.

Given a₂ = 7 and a₅ = −56 for a geometric sequence.

From the general formula of geometric sequence's nth term

Aₙ = a₁ rⁿ⁻¹

Thus

A₂ = 7 = a₁ r²⁻¹ = a₁ r

A₅ = -56  =  a₁ r⁵⁻¹ = a₁ r⁴

comparing both equations

A₂/ A₅ = a₁ r /  a₁ r⁴

=>  -7/56 = 1/r³

=> r³ = -8

=> r = -2

putting this value of r in equation 1

a₁ = -7/2

Hence, for the nth term of the sequence

Aₙ = -7/2(-2)ⁿ⁻¹

Therefore, the Nth term and the first term of the given sequence are Aₙ = -3.5(-2)ⁿ⁻¹ and -3.5 respectively.

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The graph of the linear inequality  y > 5 / (-2x + 2) shows a solution of (0, 2.5)

The graph of an inequality in two variables is the set of points that represents all solutions to the inequality. A linear inequality divides the coordinate plane into two halves by a boundary line where one half represents the solutions of the inequality. The boundary line is dashed for > and < and solid for ≤ and ≥.

In the given inequality, y > 5 / (-2x + 2) can be represented on a graph using a graphing calculator.

Kindly find the attached graph below

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Answer i just need points

Step-by-step explanation: maybe 90

The probability of those that favors building the health center is 0.196

The probability is the measure of the likelihood of an event to happen. It measures the certainty of the event. The formula for probability is given by; P(E) = Number of Favorable Outcomes/Number of total outcomes.

In a recent survey, 70% of the community favored building a health center in their neighborhood. If 14 citizens are chosen, find the probability that exactly 8 of them favor the building of the health center.

According to the scenario, 70% of the community favoured in building a health centre.

Hence , p=0.7.

In order to find the probability, binomial theorem will be used as follows :

= 0.196

Hence, The probability is 0.196

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Answer:

linear

Step-by-step explanation:

To tell if a function is linear, simply look at the exponents of the variables "x" and "y". Both of these exponents will have to be one and only one (1), any other exponent will turn the function into non-linear. Radicals also count as exponents different than one, because they are fractional exponents. Since there are no radicals or exponents written in this equation, we can conclude that all variable exponents are one (1), hence it's a linear equation.

Answer:

1,2,-5,-1,3

Step-by-step explanation:

the coefficients are the numbers before the variables (x and y)

if there is nothing infront of the variable then the coefficient is 1

if there is only a negative sign infront of the variable then the coefficient is -1

Answer: y=6x-16

Step-by-step explanation:

Slope-intercept form is y=mx+b, where m is slope and b is y-intercept.

Since we are given a point and the slope, all we have to do is solve for b.

y=mx+b             [plug in point and slope]

2=6(3)+b            [multiply]

2=18+b               [subtract both sides by 18]

b=-16

With b, we can plug into our equation y=6x-16.

The slope of the given line is 13 and the y - intercept of the line is 9.

What is equation of line?

A straight line's general equation is y = mx + c, where m denotes the gradient and y = c denotes the point at which the line crosses the y-axis. On the y-axis, this value c is referred to as the intercept.

Consider, the given equation of line,

C(m) = 13m + 9

We have to find the slope and y - intercept of the given equation.

From the given equation the slope of the equation is 13 and the y - intercept is 9.

Consider, the general equation of line

y = mx + c

where,

m is the slope of line and

c is the y - intercept of the line.

Compare the given equation C(m) = 13m + 9 with, y = mx + c

⇒  m = 13 and c = 9

Hence, the slope of the given line is 13 and the y - intercept of the line is 9.

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The mean of the given data is 12.4

The mean can be calculated only for numeric variables, no matter if they are discrete or continuous. It's obtained by simply dividing the sum of all values in a data set by the number of values.

Given that, a data, 10, 12, 11, 13, 14, 12, 13, 14, 13, and 12

Arranging the data in ascending order, 10, 11, 12, 12, 12, 13, 13, 13 14, 14

The sum is = 10+12+11+13+14+12+13+14+13+12 = 124

Total number of data = 10

Mean = sum of the numbers/ total numbers of data

Mean = 124/10

Mean = 12.4

Hence, the required mean is 12.4

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The equation of the parabola is f(x)= 7x²+5x-2 when values of the x are -3,0,2 and the f(x) are -8,-2,-28.

Given that,

The values of the x are -3,0,2 and the f(x) are -8,-2,-28

We have to find the equation of the parabola with the x and f(x) values.

We know that,

The equation of the parabola of the form f(x) = ax²+bx+c

So,

-3a-3b+c=-8 ----->equation(1)

c=-2

2a+2b+c=-28 ------>equation(2)

Substituting c=-2 in equation(1) and equation(2)

-3a-3b-1+8=0

-3a-3b+7=0 ------>equation(3)

2a+2b-2+28=0

2a+2b+26=0 ------>equation(4)

Subtracting 2×equation(3) and 3×equation(4)

                               b=5

Substituting in equation(1)

a=7

Therefore, The equation of the parabola is f(x)= 7x²+5x-2 when values of the x are -3,0,2 and the f(x) are -8,-2,-28.

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Answer:

  y +2 = -2/7(x -2)

Step-by-step explanation:

You want the point-slope equation of the line through (9, -4) and (2, -2).

The slope is given by ...

  m = (y2 -y1)/(x2 -x1)

  m = (-2 -(-4))/(2 -9) = 2/-7 = -2/7

The point-slope equation of a line with slope m through point (h, k) is ...

  y -k = m(x -h)

Using the second point with the found slope, the equation is ...

  y +2 = -2/7(x -2)

If an advertisement is placed in 4 different places in vogue magazine and then runs for 5 issues, the number of opportunities to see would be 20

Opportunity to See reveals the typical frequency with which a person has encountered a specific advertising channel.

The OTS is used to assess the success of advertising campaigns along with the Gross Rating Point (GRP) and other information.

The OPS can be calculated using the formula below: The total number of individuals contacted is known as the net reach. The amount of people reached, regardless of the number, is known as the gross reach.

According to the question,

Number of places advertisement is placed = 4

Number of issues = 5

Therefore , Opportunities to see would be = 4 × 5

=> 20

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Answer:

C

Step-by-step explanation:

Anything multiplied by one is itself...its identity

Answer:

148 degrees

Step-by-step explanation:

b/c a line is 180 degrees and the angle given is 32 so 180- 32= 148

and the line is bisected at point p so it is 148 because of alternate interior angles.

By analyzing the given line mathematically, we get the required slope of the line as 3.

A line's steepness and direction can be expressed as a value called slope. It is frequently represented in variable format by the letter m. Its gradient or rate of change are other names for a line's slope.

The rise over run or slope formula, often known as the vertical change in y divided by the horizontal change in x, To determine the change in y over the change in x, the slope formula requires two points, (x1, y1) and (x2, y2).

As from the Line,

Two points = (1,2), (2,5)

(x1, y1) = (1,2)

(x2,y2) = (2,5)

Using two point we can calculate slope as

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

Putting the points in the formula, we get:

[tex]\frac{5-2}{2-1}[/tex]

= 3

Hence, we get the required slope as 3.

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Answer:

-2

Step-by-step explanation:

y=-9x+b

7=-9+b    b=16

w=-9*2+16

w=-2

By using unitary method, it can be calculated that

Michael runs 4.23 miles in 23.5 minutes

What is unitary method?

Unitary method is the process in which the value of single unit can be calculated from the value of multiple unit and the value of multiple unit can be calculated from the value of single unit. Sometimes Value of single unit can be less than the value of multiple unit. For example - The relation between the cost of a commodity and the quantity of the commodity

Sometimes Value of single unit can be more than the value of multiple unit. For example - The relation between the number of men and the number of days taken by those men to do a certain job.

This problem is based on unitary method

Michael runs 0.18 miles a minute.

Michael runs 1 mile in [tex]\frac{1}{0.18}[/tex] minutes

Michael runs 4.23 miles in [tex]\frac{1}{0.18} \times 4.23[/tex] minutes

Michael runs 4.23 miles in 23.5 minutes

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3/4 is 9/12 in simplest form.

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a) Using a linear regression analysis, the parameters a and b can be found by transforming the data as follows:

log(M) = log(a) - b/T

log(M) log(2.5 x 10-4) log(5.1 x 10-4) log(0.95 x 10-4) log(4.98 x 10-5) log(2.12 x 10-5) log(1.05 x 10-5) log(5.87 x 10-6)

T 10 20 40 60 80 100 120

1.3979 0.6989 -0.0041 -1.2998 -2.1245 -2.9594 -3.7697

Using the transformed data, a linear regression analysis can be used to find the parameters a and b.

b) Plotting the transformed data and the linear regression curve on the same graph:

c) Using the same graph to plot the data and the best fit exponential curve:

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The statement which is correct about the speed of the two objects is both travel at steadily increasing speed.

A direct relation exists when the two variables rise or fall together. In a straight link, as X rises, Y rises as well. A straight relationship will always have a positive slope on a graph.

Speed is the pace at which an object's position changes in any direction. The distance travelled in relation to the time it took to travel that distance is how speed is defined. Since speed simply has a direction and no magnitude, it is a scalar quantity.

The graph shows the direct relation that means with increasing time and distance speed will increase. Moreover, the table also shows direct and increasing relation about the speed of two objects so the statement both travel at steadily increasing speed is correct.

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By using the least-squares regression line the equation will be y = 1.518x + 0.305.

Let us find the value of slope and y-intercept that suits the data y = mx + b

And then , we have to find the value of x² ,∑x,∑y,∑x²,∑xy also N

Then, we have to calculate the slope m

m = n∑(xy) - ∑x ∑y / n ∑(x²) - (∑x)²

= 5 X 236 -26 X 41 / 40 - 676

= 249 / 164

= 1.5183

Then , we hace to calculate the intercept b

b = ∑y - m∑x / n

= 41 - 1.5183 X 26 / 5

= 0.3049

After this we have to assemble it in the equation of line

y =mx + b

Therefore ,

y = 1.518x + 0.305

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The proportion of households that own mutual funds but not individual stocks or individual stocks but not mutual funds is in option (b) 60%.

Proportion: Two ratios are said to be proportional if they express the same relationship.

Given that:

P (households owning mutual funds) = 60% = 0.6

P (households owning individual stocks) = 40% = 0.4

P (households owning both mutual funds and individual stocks) = 20% = 0.2

P (households that own mutual funds but not individual stocks or individual stocks but not mutual funds)

= P(A) only + P(B) only = [P(A) - P(A∩B)] + [P(B) - P(A∩B)]

= 0.4 + 0.2 = 0.6 = 60%.

Please refer to this complete question:

In a certain town, 60% of the households own mutual funds, 40% own individual stocks, and 20% own both mutual funds and individual stocks. The proportion of households that own mutual funds but not individual stocks or individual stocks but not mutual funds is

a. 40%.

b. 60%.

c. 80%.

d. 100%

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Answer:

Do u like m&m because I do