1/3a^2+a=0

It's rather urgent, please or else I will fail my semester...

The equation of the line is : y = -1x + 3

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. Y = mx + c represents the equation of a straight line with gradient m and intercept c on the y-axis.

Given,

3x + 3y = 2

3y = -3x + 2

y = -x + 2/3

Comparing it with

y = mx + c

we get,

m = -1

Now, let the equation of line be

y = mx + c

where, m = -1

Now we have to check for point (0,0) that it satisfies

0 = -1(0) + c

c = 0

So, the equation of line will be y = -1x

Now, let y = mx + c be the equation of line of point (-3, 6) should satisfy]

6 = -1(-3) + c

6 = 3 + c

c = 6 - 3

c = 3

So the equation of line is y = -1x + 3

Hence, The equation of the line is  y = -1x + 3

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The equation of the line representing the given situation is y = (3/4)x , the graph of the equation is shown below .

In the question ,

it is given that ,

a refreshment stand makes 3 large serving of frozen yogurt from 4 pints .

also given that number of pints is represented by x - axis .

the number of servings is represented by y - axis  .

the equation of the line is represented by y = mx + c .

we get c = 0, because at 0 pint there is no servings

hence , the  equation becomes y [tex]=[/tex] mx .

According to the question ,

3 = m*4

m = 3/4 .

Substituting the value of m in the equation , we get

y = (3/4)x

the graph of the equation is shown below .

Therefore , The equation of the line representing the given situation is y = (3/4)x .

The given question is incomplete , the complete question is

A refreshment stand makes 3 large servings of frozen yogurt from 4 pints. Graph the line and then write its equation. Let the x-axis represent the number of pints and the y-axis represent the number of servings. Use only fractional form, if necessary.

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Answer: Yes

Step-by-step explanation:,

The factors of 10 are 2 and 5 any number divisible by 10 will also be divisible by both 2 and 5.

Hope this helps! ^-^  Have a good day! :)

Answer:

Yes, Because factors of 10 are 1,2,5,10.

So all numbers divisible by 10 must be divisible by 2 and 5.

Step-by-step explanation:

The constant of proportionality between the total cost and the number of songs is 0.72.

The constant of proportionality is the ratio that supplies the variable cost per unit of each song.

Other names for the constant of proportionality include:

Determining the constant of proportionality can help us formulate the total cost equation as y = 0.72x.

Number of Songs    Total Cost    Unit Cost

          13                     $9.36         $0.72 ($9.36/13)

          17                     $12.24        $0.72 ($12.24/17)

         19                     $13.68         $0.72 ($13.68/19)

Check:

y = 0.72x

y = 0.72(13)

y = $9.36

Thus, the constant of proportionality is 0.72, showing that a downloaded song costs $0.72 each.

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The pitcher that has the lowest number of runs allowed per inning is Randy.

In order to determine the pitcher that has the lowest number of runs per innings, divide the number of runs of each player by the number of innings of that player.

Division is the mathematical operation that is used to calculate the quotient of two or more numbers. It entails grouping a number into equal parts using another number.

Number of runs per innings = number of runs / number of innings

Number of runs per innings for Randy : (2 / 3) = 0.667

Number of runs per innings for Felix : (4 / 5) = 0.80

Number of runs per innings for Johan: (5 / 7) = 0.714

Here is the complete question:

A baseball team has three different pitchers. Randy pitched 3 innings and allowed 2 runs, Felix pitched 5 innings and allowed 4 runs, and Johan pitched 7 innings and allowed 5 runs.

Which pitcher has the lowest number of runs allowed per inning?

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Answer:1/2

Step-by-step explanation:

The value of d in the expression, 4d/5+3 = -2-d/5, is -5.

According to the question,

We have the following expression:

4d/5+3 = -2-d/5

Now, moving the terms with the same variables on the left hand side will result in the change of the sign from minus to plus:

4d/5+d/5 -3 = -2

5d/5+3 = -2

d+3 = -2

Now, moving 3 from the left hand side to the right hand side will result in the change of the sign from plus to minus:

d = -2-3

We know that two negative integers are added but the sign before the result remains negative.

d = -5

Hence, the value of d is -5.

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The scale factor of the drawing that Desmond is illustrating is is 1/125.

A scale factor is the ratio between rte scale of a particular object and the new object.

In this case, Desmond made a scale drawing of a house, the garage is 4 centimeters wide in the drawing and the actual garage is 5 meters wide.

100 centimeters = 1 meters

5 meters = 500 centimeters

Therefore, the scale will be:

= 4 / 500

= 1 / 125

= 1:125

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The maximum number of whole pounds of grapes bought by Jonathan is 3 pounds.

For the given question;

The rate of grapes =  $1.99 per pound

The rate of strawberries =  $2.50 per pound

The rate of pineapples =  $2.99 per pound

Let x be the number of pounds of grapes.

strawberries = x + 2

Total price paid by Jonathan = $25

Thus, the inequality becomes.

2(2.99) + 1.99x + 2.50(x + 2) ≤ 25

Solve the inequality to find the pounds of grapes.

5.98 + 1.99x + 2.5(x + 2) ≤ 25

x ≤ 3.11

x = 3

Thus, the maximum number of whole pounds of grapes bought by Jonathan is 3 pounds.

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The complete question is-

A store sells grapes for $1.99 per pound, strawberries for $2.50 per pound, and pineapples for

$2.99 each. Jonathan has $25 to buy fruit.

He plans to buy 2 more pounds of strawberries than grapes. He also plans to buy 2 pineapples.

If x represents the number of pounds of grapes, write an inequality in one variable that models this

scenario.

Determine algebraically the maximum number of whole pounds of grapes he can buy.

Answer:

the answer of this question is:

1q+17r+10

The completion of the inventory table is as follows:

Some of the inventory methods that are used in completing the inventory table are:

                                    Units    Unit Cost    Total Cost

Jan. 1      Beg. Inventory  10       $7.00            $70

Apri. 11    Purchases        30     $12.00          $360

May 17    Purchases        40     $13.00          $520

Dec. 5    Purchases        20    $15.00           $300

Total                              100                        $1,250

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The slope of the side connecting (0,−2) and (-2, 3) is: -5/2.

The slope of the side connecting (6, 0) and (4, 5) is: -5/2.

The slope (m) of a side connecting two points with given coordinates can be calculated using the slope formula shown below:

Slope (m) = change in y / change in x = [tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex].

Slope of the side connecting (0,−2) and (-2, 3):

Slope (m) = change in y / change in x = (3 - (-2)) / (-2 - 0)

m = 5/-2

Slope (m) = -5/2.

Slope of the side connecting (6, 0) and (4, 5):

Slope (m) = change in y / change in x = (5 - 0) / (4 - 6)

m = 5/-2

Slope (m) = -5/2.

Therefore, the slope of both sides are the same, which is: -5/2.

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[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\dotfill & \$50000\\ P=\textit{original amount deposited}\\ r=rate\to 5.9\%\to \frac{5.9}{100}\dotfill &0.059\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{quarterly, thus four} \end{array}\dotfill &4\\ t=years\dotfill &7 \end{cases}[/tex]

[tex]50000=P\left(1+\frac{0.059}{4}\right)^{4\cdot 7} \implies 50000=P(1.01475)^{28} \\\\\\ \cfrac{50000}{(1.01475)^{28}}=P\implies 33183.05\approx P[/tex]

By using subtraction, it can be calculated that there were 496 round beads more than heart shaped beads

What is subtraction?

Suppose, there are two numbers and it is required to find out how much one number is bigger than  the other. The operation used for this is subtraction.

The larger number is called minuend and the smaller number is called subtrehend.

Here, subtraction will be used

Number of round glass beads = 675

Number of beads in the shape of heart = 179

Number of more round beads there were = 675 - 179

                                                                      = 496

There were 496 round beads more than glass beads

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The x value we get is 10 when the sides are 8x-13 and 5x+17 in a congruent triangle.

Given that,

The sides as 8x-13 and 5x+17

We have to find the x value.

If two or more triangles are congruent, it depends on how big their sides and angles are. The three sides and three angles of a triangle determine its size and shape, accordingly. Two triangles are said to be congruent if the pairings of respective sides and corresponding angles are equal.

We say now,

8x-13 = 5x+17

8x-5x=17+13

3x=30

x=30/3

x=10

Therefore, The x value we get is 10 when the sides are 8x-13 and 5x+17 in a congruent triangle.

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Answer:

False

Step-by-step explanation:

The denominators have to be the same for you to be able to add or subtract a fraction.

Answer:

1/3

Explanation:

Imagine you repeat the experiment 100 times.

It is expected that half of the times (50) you take the fair coin and half of the times (50) the trick coin.

When you take the fair coin, half of the times you get heads, that is 25 times from 100 you “get the fair coin AND you get heads with the fair coin”.

When you take the trick coin, all the times you get heads, that is 50 times from the original 100 you “get the trick coin AND you get heads with the trick coin”.

In total, it is expected you get heads 75 times. And from those, 50 times will be with the trick coin and 25 times with the fair coin.

Now, if you get one of those at random, what’s the likelihood it was the fair coin?

Well, you have 25 cases it was the first coin and 50 cases it wasn’t, so it is 25 from a total of 75 and that is 25/75 = 1/3. That is, about 33.33%

Also, with probability theory:

Bayes’ Theorem:

P(B|A) = P(A ∩ B) / P(A)

P(A|B) = P(A ∩ B) / P(B)

So: with just the definitions I prove Bayes:

P(B|A) = P(A|B) * P(B) / P(A)

In our case:

P(Fair| Heads) = P(Heads|Fair) * P(Fair) / P(Heads)

p = P(Fair | Heads) = 0.5 * 0.5 / P(Heads)

What is P(Heads) ??

We can apply this:

Heads = (Heads ∩ Fair) U (Heads ∩ Trick)

And those in the union are disjoint (mutually exclusive), so:

P(Heads) = P(Heads ∩ Fair) + P(Heads ∩ Trick) =

= P(Heads|Fair) * P(Fair) + P(Heads|Trick) * P(Trick) =

= 0.5 * 0.5 + 1.0 * 0.5 = 1/4 + 1/2 = 3/4

Then:

p = P(Fair | Heads) = 0.5 * 0.5 / P(Heads) = 1/4 / (3/4) = 1/3

The equation of a line perpendicular to the line 2x - 5y = 5 is 10x + 4y = 3.

The equation of a line can be represented in slope intercept form as follows:

y = mx + b

where

The product of the slope of perpendicular lines is equals to negative 1.

Therefore, the slope of the equation 2x - 5y = 5.

Hence,

2x - 5y = 5.

2x - 5 = 5y

y = 2 / 5 x  - 1

Therefore, the slope is 2 / 5. Therefore, the slope of the equation will be - 5 / 2.

using

y = - 5 / 2 x + b

Hence, the equation is 10x + 4y = 3.

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On differentiating the given function with respect to x , we get f'(x) = 10x⁴ - 8x⁻⁵  .

In the question ,

it is given that

the function is f(x) = 2x⁵ + 3 + 2x⁻⁴

the derivative of x⁵ is [tex]=[/tex] 5x⁴ ,

the derivative of 3 is = 0

the derivative of x⁻⁴ = -4x⁻⁵ .

on differentiating the function  f(x) = 2x⁵ + 3 + 2x⁻⁴ with respect to x is

f'(x) = 2*d/dx(x⁵) + d/dx(3) + d/dx(x⁻⁴)

Substituting the values of derivative ,

we get

f'(x) = 2*(5x⁴) + 0 + 2(-4x⁻⁵)

f'(x) = 10x⁴ - 8x⁻⁵

Therefore , On differentiating the given function with respect to x , we get f'(x) = 10x⁴ - 8x⁻⁵  .

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Answer:

x = 62

Step-by-step explanation:

40 + (x + 16) + x = 180 (sum of angles in a triangle=180)

2x + 56 = 180

2x = 124

x = 62

The solution for (18x45) divided by 8 = 101.25

Simplify (18x45) divided by 8

Step 1: Rewrite the equation in mathematical terms

we have:

[tex]\frac{18 x 45}{8}[/tex]= [tex]\frac{810}{8}[/tex]

= 101.25

Therefore, the solution for (18x45) divided by 8 = 101.25

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The percent of loads of clothes are washed in an extra large washer is 75%.

It was stated that out of the 600 loads of clothes washed at a cleaners in one week.450 of those loads are washed in an extra large- washer

Therefore, the percentage that are washed in extra large washer will be:

= Number washed in extra large washer / Total number of clothes × 100

= 450/600 × 100

= 3/4 × 100

= 75%

The percentage is 75%.

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The integer in the set S:{−24, 2, 20, 35} that will make the inequality five-sixths m minus five is less than one-half m plus 3 false is 35

Inequalities are created through the connection of two expressions. It should be noted that the expressions in inequality aren't always equal. Inequalities imply that the expressions are not equal. They are denoted by the symbols ≥  <  >   ≤.

In this case, based on the information we will replace m with 35. This will be illustrated thus:

= 5/6(35 - 5) < 1/2(35 + 3)

= 5/6(30) < 1/2(38)

= 25 < 19

In this case, 25 isn't less than 19. Therefore, 35 is the correct integer.

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The system of equations has no solutions, meaning that the two lines never intersect, as shown by the image at the end of the answer.

A system of equations is a set of equations in the context of a problem, and these equations are solved to find the numeric value of each variable of the problem.

When the system involves linear equations, such as is the case in this problem, the solution is given by the intersection point between these two lines.

In this problem, the equations are given as follows:

From the second equation, it is found that:

x = 8 + 2y.

Replacing on the first equation, the solution for y can be obtained as follows:

2(8 + 2y) - 4y = 4

16 + 4y - 4y = 4

0y = -12

Which is a contradiction, hence the system has no solutions and the two lines do not intersect.

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The value of the exponent given as 24 - (5 + 3)^2 + 4 × 2^3 is -8.

An exponent is the number of times that a number is multiplied by itself. It should be noted that the power is an expression which shows the multiplication for the same number. For example, in 6⁴ , 4 is the exponent and 6⁴ is called 6 raise to the power of 4.

In this case, the value given will be expressed thus:

= 24 - (5 + 3)^2 + 4 × 2^3

= 24 - (8)² + 4 × 8

= 24 - 64 + 32

= -8

The value is -8.

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The linear equation that passes through the point (2,-9) and has a slope of -5 in slope-intercept form is y = -5x = 1

Linear equation can be represented in different form such as slope intercept form, point slope form, general form and standard form.

Hence, the linear equation in slope intercept form is as follows;

y = mx + b

where

Therefore, the line passes through (2,-9) and has a slope of -5 .

Hence,

y = -5x + b

let's find the y-intercept using (2, -9)

-9 = -5(2) + b

-9 = -10 + b

b = -9 + 10

b = 1

Therefore, the linear equation is  y = -5x + 1

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Answer:

1.342

Step-by-step explanation:

4^x+64^x=272

4^x+(4^3)^x=272

4^3x+4^x=272

(4^x)^3+4^x=272

(4^x)^3+4^x-272=0

u^3+u-272=0 ==> substitute 4^x with u

Now, use synthetic division to find roots:

[tex]\sqrt[3]{272}[/tex]31   |    1    0              1             -272

                       [tex]\sqrt[3]{272}[/tex]1     [tex]\sqrt[3]{272^2}[/tex]      272

                 1    [tex]\sqrt[3]{272}[/tex]1      [tex]\sqrt[3]{272^2}[/tex]       0

4^x=[tex]\sqrt[3]{272}[/tex]

log 4 (4^x)=log 4 ([tex]\sqrt[3]{272}[/tex])=1.342

The diameter of a semicircle is 4 yards. The perimeter for a semicircle having a diameter of 4 yards is 10.28 yards.

The perimeter of a shape is the distance of the path or boundary that surrounds the shape.

The formula for the perimeter of a semicircle is πr + 2r

π(pie)=3.14

r(radius)=2 yards (∴ radius=1/2diameter)

∴ the perimeter of a semicircle = πr + 2r

                                                    = 3.14×2+2×2

                                                    =10.28 yards.

∴ The perimeter of a semicircle with a diameter of 4 yards is 10.28 yards.

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At the 1% level of significance, the heat shield for the Komodo spacecraft have average temperature of 191.811° C < x-bar < 196.73° C which is less 200◦C

Type I error is explained below

1% level of significance means that the p value or the probability of the temperature of the new heat shield for Komodo spacecraft being less than 200° C is less than 1%

The range of average temperatures of the shield is given by the formula

= x-bar ± t(s/√n)

Definition of variables

mean, x-bar = 194.37° C

standard deviation, s = 4.29° C

sample size, n = 24

significance level = 1%

confidence level = 1 - significance level = 1 -  0.01 = 0.99 = 99%

z score, z

For sample size less than 30, n < 30. t scores are used

degree of freedom, df = n - 1 = 24 - 1 =23

t score for 99% confidence level and df of 23 = 2.808

substituting into the formula

= x-bar ± t(s/√n)

= 194.37 ± 2.808 (4.29/ √24)

= 194.27 ± 2.4589

= 191.811 ° C < x-bar < 196.73° C

Type I error in the context

Type I error is when the engineer's test shows that the interior of the Konodo spacecraft is below 200° C when the interior is actually above 200° C

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