I don’t know It probably something called calculator and google searching because even tho it look easy I’m just to lazy to even help sorry.

More on Linear Equations & Linear Systems: Question 1

How many solutions does the system of equations below

have?

y - 2x + 2

y-r-1

Select one:

none

infinitely many

O o o o

one

two

Answer:

21

Step-by-step explanation:

An airplane maintaining a constant airspeed takes as long to travel 925 mi with wind as it does to travel 775 mi against the wind. If the wind is blowing at 15 mph, what is the rate of the plane in still air

9514 1404 393

**Answer:**

170 mph

**Step-by-step explanation:**

The speed of the airplane can be represented by s. The travel time will be ...

time = distance/speed

925/(s +15) = 775/(s -15)

925(s -15) = 775(s +15)

150s = 25500 . . . . . . . . . add 13875-775s

s = 170

**The rate of the plane in still air is 170 mph**.

Does anyone know this answer !!!!!!

**Answer****:**

13

**Step-by-step explanation:**

5x + 25 = 7x - 1

-7x. -7x

-2x + 25 = -1

-25. -25

-2x = -26

-2. -2

x = 13

you want new jeans and there is a sale this week where they are marked down 30%. what is your final cost if the original price is $50?

Answer: 15 dollars

Step-by-step explanation:

0.3 * 50

There are (26)3⋅ 20 bacteria in a sample. What is the total number of bacteria in the sample? (1 point)

**Answer: If we multiply then I guess it’s 26*3=78 and 78*20=1,560**

**Step-by-step explanation:**

PLEASE HELP!!!

There are 800 students who attend Park Middle School. There are 1.5 times as many boys as there are girls. Assign variables to the unknowns.

800= 1.5x +y

X is boys

And y are girls

X is boys

And y are girls

What are the domain and range of f (x)= -27

**Answer:**

Domain: (-∞,∞)

Range: {−27}

Find the standard deviation of the following data. Round your answer to one decimal place. x 00 11 22 33 44 55 P(X

Complete question :

Find the standard deviation of the following data. Round your answer to one decimal place.

X: 0 1 2 3 4 5

P(X) : 0.2, 0.3, 0.1, 0.1, 0.1, 0.2

Answer:

1.833

Step-by-step explanation:

Given the data :

X: 0 1 2 3 4 5

P(X) : 0.2, 0.3, 0.1, 0.1, 0.1, 0.2

Standard deviation (s) = Sqrt[Σx²*f(x) - E(x)²]

E(x) = (0*0.2) + (1*0.3)+(2*0.1)+(3*0.1) + (4*0.1) + (5 * 0.2) = 2.2

Sqrt[Σx²*f(x) - E(x)²]: [(0^2 * 0.2)+(1^2 * 0.3)+(2^2 * 0.1)+(3^2 * 0.1) + (4^2 * 0.1) + (5^2 * 0.2)] - 2.2²

Sqrt(8.2 - 4.84) = 1.833

what is 37737332732.83838-388733883.6 equal?

**Answer:**

4838388.34?

**Step-by-step explanation:**

Anya purchased $124.35 worth of home improvement items at the hardware store. If the sales tax rate in her city is 6.75%, what is the total cost of her purchase!

**Answer:**

124.35 X 6.75

**Step-by-step explanation:**

The **total cost **of Anya's purchase of home improvement hardware is 132.74 dollars.

**What is percentage?**

The percentage is the value per hundredth.

It is given that, the sales tax is 6.75% which is not there in the home improvement hardware which cost 124.35 dollars to Anya.

The total cost of purchase including the sales tax is ( 100 + 6.75)% = 106.75% of 124.35 dollars which is,

= (106.75/100)×124.35 dollars.

= 1.0675×124.35 dollars.

= 132.74 dollars.

learn more about **percentage **here :

brainly.com/question/24159063

#SPJ5

please help!!!!!!!!!!!!!!

**Answer:**

A

**Step-by-step explanation:**

By solving (x+6)(x-9), we get x^2 - 3x - 54. By looking at our y-intercept, we can see that only option A has the correct intercept.

**Answer:**

A

**Step-by-step explanation:**

(6-x3)5=45 Please help

the answer is x equals -1

helpp meeee will award brainliest

What’s the question?

A vaccine is 95 percent effective. What is the probability that it is not effective for more than 1 out of 20 individuals?

**Answer:**

The probability that the vaccine is not effective in more than 1 of the 20 individuals is equal to:

P = 1 - P(1) - P(0)

Where:

P(1) = probability that the vaccine is not effective in one individual

P(0) = probability that the vaccine is not effective in 0 individuals.

The probability that the vaccine is effective is 0.95

Then the probability that the vaccine is not effective is 0.05.

Then to calculate P(1), suppose that the vaccine is not effective in the first case and then is effective 19 times, this is:

p(1) = (0.05^1)*(0.95^19)

But this only for one case, we have 20 possible permutations (the vaccine is not effective in the first case, the second case, third case, etc)

Then the actual probability is:

P(1) = 20*((0.05^1)*(0.95^19)) = 0.377

And P(0) is easy to compute:

P(0) = (0.05^0)*(0.95^20) = 0.358

And here we have only one possible permutation, so we do not worry about that.

Then P = 1 - P(1) - P(0) = 1 - 0.377 - 0.358 = 0.265

This means that the probability that the vaccine is not effective in more than one individual is of 0.265 (or 26.5% in percentage form)

b. If this branch of the military changes the height requirements so that all women are eligible except the shortest 1% and the tallest 2%, what are the new height requirements?

**Answer:**

c

**Step-by-step explanation:**

**Step-by-step explanation:**

znznzmzspmzlsldfpcf

2. I mark as brainliest

**Answer:**

3.55 miles

**Step-by-step explanation:**

You add the mileage of the two trails which is 1.75+1.8=3.55 miles

Define the following terms:

Mass - Something that measures the amount of matter in a substance or an object.

Volume - The quantity of three-dimensional space enclosed by a closed surface.

Melting point - The temperature at which a given solid will melt. (32°F)

Boiling point - The temperature at which a liquid boils and turns to vapor. (212°F)

Density - The degree of compactness of a substance.

Conductivity - The degree to which a specified material conducts electricity.

Solubility - The ability of a solid, liquid, or gaseous chemical substance to dissolve in a solvent (a solvent is a liquid.)

Magnetism - A physical phenomenon produced by the motion of electric charge.

Volume - The quantity of three-dimensional space enclosed by a closed surface.

Melting point - The temperature at which a given solid will melt. (32°F)

Boiling point - The temperature at which a liquid boils and turns to vapor. (212°F)

Density - The degree of compactness of a substance.

Conductivity - The degree to which a specified material conducts electricity.

Solubility - The ability of a solid, liquid, or gaseous chemical substance to dissolve in a solvent (a solvent is a liquid.)

Magnetism - A physical phenomenon produced by the motion of electric charge.

Please help thank you

**Answer:**

1/144

**Step-by-step explanation:**

You multiply the top and bottom by itself because its to the second and you get rid of the negative because negative multiplied by a negative is positive

Which of the following in NOT an equation of a line parallel to the line with equation y=1/2x-6 *

y = 2/4x + 6

y = 0.5x - 3

y = 1/2x + 1

y = 2x - 4

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**Answer:**

y = 2x - 4

**Step-by-step explanation:**

You want an equation with an x-coefficient that is not 1/2.

2/4 = 0.5 = 1/2

so, the first three answer choices don't meet problem requirements.

The line with equation ...

** y = 2x -4**

is not parallel to y = 1/2x -6.

What Is It HomeWork*.

**Answer:**

sumthing that we hate doing

**Step-by-step explanation:ughhhhhhhhhh**

The inequalities is 6 is greater than or equal to 6

The Fashion Store has $6000 available each month for advertising. Newspaper ads cost $200 apiece and no more than 20 can be run per month. Radio ads cost $100 each and no more than 30 can run per month. TV ads cost $800 a piece, with a maximum of 7 available each month. Approximately 1000 women will see each newspaper ad, 800 will hear each radio ad, and 14,000 will see each TV ad. How much of each type of advertising should be used if the store wants to maximize exposure?

9514 1404 393

**Answer:**

**Step-by-step explanation:**

The audience per dollar is ...

Newspaper: 1000/$200 = 5/$

Radio: 800/$100 = 8/$

TV: 14000/$800 = 17.5/$

So, TV gives the greatest exposure. As much of the budget as possible should be spent on TV ads. That amount is the lesser of $6000 and ...

(7 ads)($800/ad) = $5600

With $5600 spent on TV ads, the remaining advertising budget is ...

$6000 -5600 = $400

The next most cost-effective medium is radio. The remaining $400 budget allows for ...

$400/($100/ad) = 4 ads

__

To maximize exposure, the advertising budget should be spent this way:

PLASE ANSWER THIS!! MARKING BRAINLEIST

1. 59049

2. a^12

3. 8a^6

4. 16a^ 10 b^6

5. 9a^4

6. s^6 t^12

7. s^5 / t^5

8. 6561

9. s^2 t^8 / r^2

10. 81a^2 b^6

Labor costs. Labor costs for a farmer are $55 per acre for corn and $45 per acre for soybeans. How many acres of each crop should the farmer plant if he wants to spend no more than $6,900 on labor?

**Answer:**

392984

**Step-by-step explanation:**

does the surface in contact with ground affect the going motion of the car ?why?

**Answer:**

Yes, it does. The ground is bumpy and it creates friction acting against the car's motion.

(you can include my example too depending on what your teacher is looking for)

**Step-by-step explanation:**

This is a fun one! Think about a ball rolling on a smooth surface, now on a bumpy sandpapery one. Which one do you think is faster? The smooth surface! This is because of this friction of the sandpaper which slows down the ball. On the other hand, the smooth one has very little friction. The same applies to cars.

4.321 × 12.34 AND IF YOU ANSWER YOU GET 10 POINTS JUST PLS HELP

**Answer:**

53.32114

**Step-by-step explanation:**

I WILL BRAINLIST ITS ONLY ONE PROBLEM !!!!!!!!!!!!!!!

**Answer:**

11/200

**Step-by-step explanation:**

This is the correct answer boo

11/200 is the answer lol

Find the values of x and y.

x=

x = 40°

y = 6

hope this helps!

y = 6

hope this helps!

A large hamburger (e.g., Whopper®) sandwich contains 628 kcal and 36 grams of fat. Approximately what percentage of the total energy is contributed by fat?

Answer:

Step-by-step explanation:

Total energy of the sandwich = 628kcal

Mass of fat contained = 36grams

Convert gram to kcal

1gram = 9kcal

36 grams = x

x = 36×9

x = 324kcal

Hence the fat contains 324kcal

%fat contained = fat(in kcal)/total calorie × 100%

%fat contained = 324/628 × 100%

%fat contained = 1/2 × 100%

%fat contained = 50%

Hence approximately 50% of the total energy is contributed by fat.

fplzz ans my question

factorize p^4+4

**Answer:**

**Step-by-step explanation:**

(p²)²+2²

(p²+2)²-2p²2

(p²+2)²-4p²

(p²+2)²-(2p)²

(p²+2-2p)(p²+2+2p)

Simplify the algebraic expression by combining like (or similar) terms.

5+9x+2

**Answer:**

7 + 9x

**Step-by-step explanation:**

add 5 and 2 and 9x doesn't have a like term so it stays the same

**Answer:**

9x + 7

**Step-by-step explanation:**

Like terms are terms that have the same variables and powers. Here, for 9x, there is no other term that is multiplied by x. So, the only terms we can combine is 2 and 5 which leaves us with 9x+7.

Which idea is found in both "Early Summer Morning" and "How to Release LadybugsInto the Garden"? O Pesticides are dangerous to ladybugs. O It is difficult to get ladybugs to eat aphids. O Ladybugs encounter a variety of dangers. O It is challenging to capture ladybugs in gardens.
Give me I will in a sentence plsss
If an object is moving with constant acceleration, its velocity must achange by varying amounts depending on its speed. balways decrease. cbe constant also. dchange by the same amount each second.
Which sentence best describes the effect of the Declaration of Rights?A. It gave Parliament the right to elect a successor when a monarch died.B. It ensured that no monarch could rule without Parliament.C. It guaranteed all people the rights to liberty and property.D. It defined the rights of the officials of the Church of England.
which one of the following is a derived Si unit a. Newton, b. Meter, c. Mole, d. Kiogram
Suppose a line segment whose endpoints are T(x1,y1) and U(x2,y2) is reflected over y=x to create TU . The coordinates of the image are T(4, 3) and U'(1, 7) . What are the values of x1 , x2 , y1 , and y2 ?
Why did people follow Christianity
which expression is equivalent to 0.17w + 0.77 + w? -0.77 + 1.17w -0.17w + 1.77 -1.94w -1.6w
The diagram of a living room is shown below. What fraction of the living room is covered by the rug? need done ASAP
Hong needs to memorize words on a vocabulary list for Spanish class. He has memorized 30 of the words, which is five-sixths of the list. How many words are on the list?
Write the slope-intercept form of the equation for the line containing (1,-6) and (4,4).
Rita planted hydrangeas in her and her grandmothers home. The same batch of seeds produced blue flowers in her home and pink flowers in her grandmothers home. This made her conclude that the soil in her grandmothers garden is alkaline while that in her garden is acidic. This is an example of which type of variation? Explain.
For this, Galileo was arrested and threatened with torture and death, but he refused to deny what he knew to be true. "I do not believe that the same God who has endowed us with senses, reason and intellect has intended us to forgo their use," he said
in quadrilateral abcd below,
Please answer--> The picture below is of a ceremonial rite installing the new Pharoah in Egypt. What type of government is represented in this picture?(Picture is attached below with answer options to choose from)
List 11 things you know about Islam please give good answers who ever gives the best answers gets over 30 points and brainliest no short lazy answers list!
when hydrogen shares electrons with oxygen the outermost shell of the hydrogen atoms are full with how many electrons? and oxygens valence shell is full with how many electrons? because the valence shells of these atoms are full,the atoms are stable.
answer with explanation pls
What is the slope of the following table?
Nutritional Foods reports merchandise inventory at the lower-of-cost-or-market. Prior to releasing its financial statements for the year ended August 31, 2019, Nutritional's preliminary income statement, before the year-end adjustments, appears as follows: NUTRITIONAL FOODSIncome Statement (Partial)Year Ended March 31, 2017Sales Revenue ........ $117,000Cost of Goods Sold ..... 45,000Gross Profit ........ $72,000Nutritional has determined that the current replacement cost of ending merchandise inventory is $17,000. Cost is $19,000. Required: a. Journalize the adjusting entry for merchandise inventory, if any is required. b. Prepare a revised partial income statement to show how Nutritional Foods should report sales, cost of goods sold, and gross profit.