What is perpendicular to x=0

Answer:

Oops, didn't mean to answer because I already answered this one.

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

solve for y in one equation

2x + y = -4

y = -4 - 2x

plug y into the other equation

5x + 3y = -6

5x + 3(-4 - 2x) = -6

5x -12 -6x = -6

-x - 12 = -6

-x = 6

x = -6

plug x into the equation to find y

y = -4 - 2x

y = -4 - 2(-6)

y = 8

ordered pair: (-6,8)

Answer:

0 hundreds

0 tens

7 ones

.

4 tenths

0 hundredths

8 thousandths

Standard form=7.408

Step-by-step explanation:

Lets first solve (7x1)+(4x1/10)+(8x1/1000)

7+0.4+0.008

Simplify:

7.408

Answer:

Indication of Actual Quantity and Estimated Quantity

Actual Quantity:

Registered students in the university = 25,000

Sample of students = 400

Students living at home = 317

Estimated Quantity:

317 out of 400 students

79%

Step-by-step explanation:

An actual quantity does not require to be estimated.  It is usually given in the question or scenario.  For example, the number of registered students in the university is an actual quantity.  The percentage of students who live at home from the simple random sample of 400 is an estimated quantity.

Answer: 1/6

Step-by-step explanation:

There are 6 faces in a dice

The faces are labeled as =

1

2

3

4

5

6

This means, there are 6 different outcomes in a dice

So we have to find out the probability of the dice showing 3

Now, out of 6 different possible outcomes, there is only 1 face labeled as 3.

So there is only 1 possible outcome as "3".

We can simply make it a fraction = 1/6 . 

So the answer is 1/6

Probability is expressed as a fraction, percentage and decimal.

The dimensions of the garden that create the maximum area are 5 meters by 15 meters, and the maximum possible area is 75 square meters

What is measurement?

Measurement is the process of assigning numerical values to physical quantities, such as length, mass, time, temperature, and volume, in order to describe and quantify the properties of objects and phenomena.

Let's assume that the rock wall is the width of the garden and the wire fencing is used for the length and the other two sides. Let's denote the length of the garden as L and the width as W.

Since we have 30 meters of fencing available, the total length of wire fencing used is:

L + 2W = 30 - W

Simplifying this equation, we get:

L = 30 - 3W

The area of the garden is:

A = LW

Substituting the expression for L from the previous equation, we get:

A = W(30 - 3W)

Expanding the expression, we get:

A = 30W - 3W²

To find the maximum area, we need to take the derivative of A with respect to W and set it equal to zero:

dA/dW = 30 - 6W = 0

Solving for W, we get:

W = 5

Substituting this value back into the expression for L, we get:

L = 15

Therefore, the dimensions of the garden that create the maximum area are 5 meters by 15 meters, and the maximum possible area is:

A = 5(15) = 75 square meters

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Answer:

B

Step-by-step explanation:

You want the person with the most experience working for you.

Answer:

12 -20

30 - 5

Step-by-step explanation:

12 × 20 = 240

30 × 5 = 150

240 + 150 = 390

then 5 has 8 more than 20

5 × 8 = 40

30 +8 = 38

38 × 5 = 190

240 + 190 = 430

please mark as brainlist answer

The margin of error for the 90% confidence interval is 3.

To find the margin of error for a 90% confidence interval, we can use the formula:

Margin of Error = (Upper Limit - Lower Limit) / 2

Given the confidence interval (72, 78), where 72 is the lower limit and 78 is the upper limit, we can substitute these values into the formula to calculate the margin of error.

Margin of Error = (78 - 72) / 2

Margin of Error = 6 / 2

Margin of Error = 3

Consequently, the 90% confidence interval's margin of error is 3.

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Answer:

the anser is the middle one

Step-by-step explanation:

Answer:

\((\frac{1}{2}+\frac{\sqrt{3}}{2}i)^5=\frac{1}{2}-\frac{\sqrt{3}}{2}i\)

Step-by-step explanation:

Convert 1/2 + i√3/2 to rectangular form

\(\displaystyle z=a+bi=\frac{1}{2}+\frac{\sqrt{3}}{2}i\\\\r=\sqrt{a^2+b^2}=\sqrt{\biggr(\frac{1}{2}\biggr)^2+\biggr(\frac{\sqrt{3}}{2}\biggr)^2}=\sqrt{\frac{1}{4}+\frac{3}{4}}=\sqrt{1}=1\\\\\theta=\tan^{-1}\biggr(\frac{b}{a}\biggr)=\tan^{-1}\biggr(\frac{\frac{\sqrt{3}}{2}}{\frac{1}{2}}\biggr)=\tan^{-1}(\sqrt{3})=\frac{\pi}{3}\\\\z=\cos\frac{\pi}{3}+i\sin\frac{\pi}{3}\)

Use DeMoivre's Theorem

\(\displaystyle z^n=r^n(\cos(n\theta)+i\sin(n\theta))\\\\z^5=1^5\biggr(\cos\biggr(\frac{5\pi}{3}\biggr)+i\sin\biggr(\frac{5\pi}{3}\biggr)\biggr)\\\\z^5=\frac{1}{2}-\frac{\sqrt{3}}{2}i\)

Answer: 3,285 Liters

Step-by-step explanation:

In the actual case, all your flushes consume 6 L of water.

You flush 4 times per day, then you consume 4 times 6 L per day, this is:

4*6L = 24 L per day.

And in one year there are 365 days, then in one year you consume:

365*24 L = 8,760 L

Now, if you upgrade the toilet, now per day you use:

one time 6 L and 3 times 3 L

Then in day, you use:

1*6 L + 3*3 L = 6L + 9L = 15L

And in the complete year, you will use 365 times that, which is:

365*15 L = 5,475 L

The amount of water that you would save is equal to the difference between the amount that you use in one year with no upgrade (8,760 L) and the amount that you would use in a year if you upgraded your toilet ( 5,475 L)

The difference is:

D = 8,760 L - 5,475 L = 3,285 L

This means that, in this situation, you would save 3,285 liters of water per year if you upgrade your toilet.

Answer:

$30.00

Step-by-step explanation:

Find 20% of 25.

Well, we know that 20% is 1/5 so technically we are calculating 1/5 of 25. That is 5.

Now, we know that the tip is $5.00

$25 + $5 = $30

$30.00 in total

\(\huge{ \mathfrak{  \underline{ Answer} \:  \:  ✓ }}\)

\( \boxed{ \mathrm{length \: \: of \: \: arc = \dfrac{ \theta}{360 \degree} \times 2\pi r}}\)

_____________________________

\(\mathrm{ ☠ \: TeeNForeveR \:☠ }\)

Length of arc AB on circle is 30.72 m.

A circular arc is an arc between two different points. If the two points are not diametrically opposed, one of these arcs, the minor arc, forms an angle of less than π radians (180 degrees) with the center of the circle. The other circular arc, the main arc, makes an angle greater than π radians. An arc is defined as a portion or segment of the circumference. A straight line connecting the two ends of an arc is called a chord. If the arc length is exactly half the circle, it is called a half arc.  

Given,

Circle with center O

Radius of circle OA = OB = 8m

Angle made by minor arc AB on center of circle α = 140°

then angle made by main arc AB = 360° - 140° = 220°

π = 180°

1° = π/180°

220° = 220°π/180°

220° = 11π/9

220° = 3.84 Rad

Length of arc on circle

= Radius of circle × angle made by the arc on center of circle in radians
= 8 × 3.84

= 30.72 m

Hence, 30.72 m is length of the arc AB.

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Answer:

The 95% confidence interval for the difference between the mean yields for the two types of fertilizer is approximately 92.5536 pounds < \(\bar{x}_{1}- \bar{x}_{2}\) < 35.39 pounds

Step-by-step explanation:

The harvest from each plot treated with fertilizer A and fertilizer B are presented as follows;

Fertilizer A

445, 510, 464, 472, 441, 480, 403, 460, 448, 457, 437, 505, 417

Fertilizer B

398, 380, 368 393, 424, 387, 378, 415

The number of trials of fertilizer A, n₁ = 13

The number of trials of fertilizer B, n₂ = 8

The confidence level = 95%

α = 1 - 0.95 = 0.05

∴ α/2 = 0.025

The degrees of freedom, df = 8 - 1 = 7

\(t_{\alpha /2}\) = 2.365

From Microsoft Excel, we get;

The standard deviation of the pounds of harvested fruits for the plots treated with fertilizer A s₁ = 30.71603

The mean of the pounds of harvested fruits for the plots treated with fertilizer A, \(\overline x_1\) = 456.8462

The standard deviation of the pounds of harvested fruits for the plots treated with fertilizer B s = 18.99201

The mean of the pounds of harvested fruits for the plots treated with fertilizer B,  \(\overline x_2\) = 392.875

The 95% confidence interval, C.I. for the difference between the mean yields for the two types of fertilizer can be constructed with the following formula

\(C.I. = \left (\bar{x}_{1}- \bar{x}_{2} \right )\pm t_{\alpha /2} \cdot \sqrt{\dfrac{s_{1}^{2}}{n_{1}}+\dfrac{s_{2}^{2}}{n_{2}}}\)

By variable substitution, we get;

\(C.I. = \left (456.8462- 392.875 \right )\pm 2.635 \times \sqrt{\dfrac{30.71603^{2}}{13}+\dfrac{18.99201^{2}}{8}}\)

The 95% confidence interval for the difference between the mean yields for the two types of fertilizer \(C.I. \approx 63.9712 \pm28.5824\), which can be expressed as 92.5536 lbs. < \(\bar{x}_{1}- \bar{x}_{2}\) < 35.39 lbs.

Answer:

24

Step-by-step explanation:

For ABCD the three longest are:

60,40,30

60 to 40 is 20

40 to 30 is 10

so each time it's decreasing by 1/2

For EFGH the two shortest are:

6 and 12

12 to 6 is 1/2

Assuming there is a pattern

it logically would be 24

as 12(2)=24

Answer:

elevation

Step-by-step explanation:

Okay, here we have this:

We are going to solve the provided equation, so we obtain the following:

Answer:

The occurrences of common prime factors of 18 and 27 are 3 and 3. So the greatest common factor of 18 and 27 is 3 x 3 = 9.

Step-by-step explanation:

If im correct, Brainliest?

Answer:

9

Step-by-step explanation:

u can search it up lol

Answer:

7606.62

Step-by-step explanation:

Start by finding how much you will have through the annuity. The question isn't that clear, so i will just assume it's an annuity due.

\(p(\frac{(1+i)^n-1}{i})*(1+i)\\i=.035/12= .0029166667\\n=10*12=120\\p=75 (given)\\75\frac{(1+.0029166667)^{120}-1}{.0029166667}*(1+.0029166667)= 10788.814149\\\)

Now just equate this to a time 0 payment at the same rate

\(10788.814149=(1+.0029166667)^{120}*x\\x= 7606.6228603=7606.62\)

As a quick note, if you were supposed to assume that your annuity was an annuity immediate the answer would be 7584.50.

Andre borrowed 350,000 from the bank and the bank will charge him 6% interest per month. To calculate the amount he has to pay for one month of interest, we can use the following formula:

Interest = Capital * Interest rate

In this case, the capital is 350,000 and the interest rate is 6%. So, we can plug in the values:

Interest = 350,000 * 0.06

Interest = 21,000

Therefore, Andre has to pay 21,000 for one month of interest.

The value of the principal investment is approximately $6,752.18 rounded to the nearest hundredths place.

Simple interest is a technique used to calculate the proportion of interest paid on a sum over a set time period at a set rate. The principal amount remains constant in simple interest. Simple interest is a straightforward and easy technique for calculating interest in money.

The given equation is:

A = \(P(1 + 0.06/4)^4t\)

where A is the amount in the account after t years, P is the principal investment, and 0.06 is the annual interest rate.

We are given that after 15 years, the amount in the account is $16,497.06. So we can substitute A = $16,497.06 and t = 15 into the equation above and solve for P:

$16,497.06 = \(P(1 + 0.06/4)^{4 *15}\)

$16,497.06 = \(P(1.015)^{60}\)

P = \($16,497.06 / (1.015)^{60}\)

Using a calculator, we get:

P ≈ $6,752.18

Therefore, the value of the principal investment is approximately $6,752.18 rounded to the nearest hundredths place.

Hence, the answer is $6,752.18.

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Answer:

it's u^2+7u-8=0 where u=3x=2

AKA the second one down

Answer:

d + 2g

Step-by-step explanation:

Sum of: +

d: d

Twice g: 2 × g = 2g

Sum of d and twice g: d + 2g

Answer:

y=2x^2+16x+11

Step-by-step explanation:

Standard form is y=ax^2+bx+c.

In order to write this polynomial in standard form, we need to simplify and then arrange the terms in decreasing order.

Rewrite (x+4)^2 as (x+4)(x+4) and then expand using FOIL.

y=2(x⋅x+x⋅4+4x+4⋅4)−21

Simplify.

y=2(x^2+8x+16)−21

Apply the distributive property and simplify.

y=2x^2+2(8x)+2⋅16−21

y=2x^2+16x+32−21

y=2x^2+16x+11

Therefore,

y=2x^2+16x+11

Answer:

90 =4v + 10

-10. -10

___________

80 = 4v

/4. /4

v = 20

hope it helps