Show work please . I’m stuck need help

Answer:

Step-by-step explanation:

Given a parallelogram with points

X(4, 0)

W(0, -1)

Y(3, -2)

Z(-1, -3)

We want to find the perimeter, perimeter is the total sum of the lengths

So, we need to find the length of the sides using distance between two points

D = √(x2-x1)² + (y2-y1)²

So, applying this

WX = √(0-4)²+(-1-0)² = √(16 + 1) = √17

XY = √(4-3)² + (0--2)² = √(1+4) = √5

Since the opposite sides of a parallelogram are equal, we don't need to find the other length

Then,

Perimeter = 2(WX + XY)

Perimeter = 2(√17 + √5)

Perimeter = 2√17 + 2√5

The correct answer is B.

Answer:

Step-by-step explanation:

You are given    GALLONS     and   MILES

   you want to find MILES / GALLON

     so just put those numebrs in

         MILES / GALLON =  126 miles / 6 gallons = 21 m/g  (or 21 MPG)

Answer

Step-by-step explanation

what are the choices TwT

Answer:

5, 7, 9.

Step-by-step explanation:

they are all greater than 4 and odd

List the numbers that meet the condition: greater than four and odd

5,7,9

Given :

the set of whole numbers from 1 to 10, inclusive.

Lets write all the numbers from 1 to 10 inclusive

The numbers are 1,2,3,4,5,6,7,8,9,10

Now we write all the odd numbers between 1  and 10

1,3,5,7,9

Now we look at the numbers greater than 4 and odd

The numbers greater than 4  and odd are 5,7,9

List the numbers that meet the condition: greater than four and odd

5,7,9

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Answer:

Sample 1: 1.5

Sample 2: -2.5

Sample 3: 5.5

Step-by-step explanation: I just did it

Answer:

(3, 4.6)

Step-by-step explanation:

Took the test on edge.

Given:

Given that the height of the pyramid is 12 units.

The base of the triangle is 8 units.

The height of the triangle is 6 units.

We need to determine the volume of the pyramid.

Area of the triangle:

The area of the triangle can be determined using the formula,

[tex]A=\frac{1}{2} bh[/tex]

where b is the base of the triangle and h is the height of the triangle.

Substituting the values, we get;

[tex]A=\frac{1}{2}(8)(6)[/tex]

[tex]A=\frac{1}{2}(48)[/tex]

[tex]A=24[/tex]

Thus, the area of the triangle is 24 square units.

Volume of the pyramid:

The volume of the pyramid can be determined using the formula,

[tex]V=\frac{1}{3}AH[/tex]

where A is the area of the triangle and H is the height of the pyramid.

Substituting the values, we get;

[tex]V=\frac{1}{3}(24)(12)[/tex]

[tex]V=\frac{1}{3}(288)[/tex]

[tex]V=96[/tex]

Thus, the volume of the pyramid is 96 cubic units.

Answer:

VERTICLE AXIS IS THE ANSWER

Step-by-step explanation:

BRAINLIEST PLEASE????

Answer:

Dependent Variable

Step-by-step explanation:

Answer:

Step-by-step explanation:

We would apply the formula,

y = ab^t

Where

a represents the initial amount of substance.

t represents the decay time.

From the information given

a = 100

t = 12 hours

Since after 12 hours, the amount of substance reduces by 0.1, then

y = 0.1 × 100 = 10

Therefore

10 = 100 × b^12

Dividing through by 100, it becomes

0.1 = b^12

Raising both sides of the equation by 1/12, it becomes

0.1^(1/12) = b^12/12

b = 0.8

The equation becomes

y = 100(0.8)^t

Where t = n, the expression becomes

y = 100(0.8)^n

Final answer:

The correct expression representing the amount of a radioactive substance left after n days, with a 10% decrease every 12 hours, is 100(0.81)^n. The decay process is exponential, and we square the 12-hour decay factor to get the daily decay factor of 0.81.

Explanation:

To determine which expression represents the grams of a radioactive substance left n days from now, given that the substance decreases by 10% every 12 hours, we'll have to work with the concept of exponential decay in our calculations. Since the decay happens every 12 hours (which is half a day), we'll count the number of half-days there are in n days, which is 2n 12-hour periods.

Since the substance decreases by 10%, it retains 90% of its previous amount every 12 hours. In decimal form, this is a 0.9 multiplier. Thus, after each 12-hour period, we multiply the current amount by 0.9. To get the amount after n days, we raise 0.9 to the power of 2n, because there are 2n 12-hour periods in n days.

In mathematical terms, the amount left after n days can be represented as 100(0.9)^(2n). However, this option is not present in the given choices, so we have to look for an equivalent expression by simplifying or altering the base if needed. We can square 0.9 to get 0.81, which corresponds to the amount of substance left after a full day (24 hours). The correct expression representing the amount after n days is 100(0.81)^n, which is choice A.

Answer:

1200 cm^3

Step-by-step explanation:

i believe you multiply highxlengthxwidth

Answer:

1200 cm3

Step-by-step explanation:

The label it wants you to use on the answer kind of hints at how you need to find the volume of this cube. since it is cm3 it means you are going to multiply each of the numbers together to get the answer.

12x10x10=1200

cm x cm x cm = cm3

Put the two together and you get 1200 cm3

Let w represent width of the pathway.

We have been given that a rectangular garden measuring 13 meters by 15 meters is to have a gravel pathway of constant width built all around it.

Since pathway will be on all sides, so new length and width of garden with pathway would be [tex]13+2w[/tex] by [tex]15+2w[/tex].

We are also told that there is enough gravel to cover 80 square meters. This means that area f pathway should be equal to 80 square meters.

The area of the pathway will be equal to area of garden with new dimensions minus area of garden with original dimensions.

We know that area of rectangle is width times length.

[tex]\text{Area of pathway}=(15+2w)(13+2w)-15(13)[/tex]

Since we are asked to write an inequality that represents all possible widths(w), in meters, of the pathway, so area of pathway should be less than or equal to 80 square meters.

[tex](15+2w)(13+2w)-15(13)\leq 80[/tex]

Therefore, our required inequality would be [tex](15+2w)(13+2w)-15(13)\leq 80[/tex].

The solution to the equation 3y + 6 + 4y - 7 = -8 is y = -1.

We have,

To solve the equation 3y + 6 + 4y - 7 = -8 for y, we can combine like terms and isolate the variable.

Combining like terms on the left side of the equation, we have:

3y + 4y + 6 - 7 = -8

Simplifying further:

7y - 1 = -8

Next, let's isolate the y-term by moving the constant term to the other side of the equation:

7y = -8 + 1

Simplifying:

7y = -7

Finally, divide both sides of the equation by 7 to solve for y:

y = -7/7

Simplifying the fraction:

y = -1

Therefore,

The solution to the equation 3y + 6 + 4y - 7 = -8 is y = -1.

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Answer:

D) 7.5 mi/h. hcbhcvu yc yv. y yv yh

Answer:

D

Step-by-step explanation:

7.5

Let

L--------> the length of the rectangle

y------> the width of the rectangle

x------> the perimeter of the rectangle

we know that

The perimeter of the rectangle is equal to

In this problem we have

For a width  

Find the value of the perimeter

so

therefore

the answer is the option A

No, the rectangle cannot have x = 60 and y = 11 because x = 48 + 2y. .

Answer:

the answer is 75.36cm but it can rounded off to 75.4cm

Step-by-step explanation:

so...circumference is equal to "2 pie radius"

since the diameter is 24 then the radius is 24 divided by 2 which is 12cm .

Answer:

1:2:3

Step-by-step explanation:

The ratio 20:40:60 is simplified by dividing each number by the greatest common divisor (GCD), which is 20, giving us the simplest form of the ratio as 1:2:3.

To write a ratio in simplest form, you have to find the greatest common divisor (GCD) of the numbers and then divide all numbers by the GCD. In the ratio 20:40:60, the GCD is 20. Therefore, when you divide each number of the ratio by the GCD you get 1:2:3. So, the ratio 20:40:60 in its simplest form is 1:2:3.

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Answer:

-6

Step-by-step explanation:

Answer:

188.23 ft

Step-by-step explanation:

8.33ft x 6.75ft

56.23ft

now add the other room

56.23ft+132ft

The total area of the two rooms is..

188.23 ft

Answer:

B. 4

Step-by-step explanation:

The sign [tex]\geq[/tex] means greater than or equal to

The sign > just means greater than

4 is a solution for x [tex]\geq[/tex]4, because 4 is equal to 4, but not a solution for x>4, because 4 is not greater than 4

Hope this helps! :)

Answer:

28 inches

Step-by-step explanation:

2 x 4=8

8-4=4

4 x 5 = 20

20+8=28

area of the x and w rectangle is 8

area of the y and z rectangle is 20

Answer:

4 participants

Step-by-step explanation:

The name of the chart is "Participants PER race"

That means they tall you how many people did the race now all you gotta do is, Count up the numbers more than 61- So look at the 6 in the "stem" portion

it has 67, 67 they are both more than 61

Then look at the next "stem" number- 7

that has 74 which is more than 61 but less than 85

Then we look at the 8 in the "stem" it has three numbers- 84, 86, 89

but 86 and 89 are more than 85 so 84 is the only one which will go through

So the numbers are: 67, 67, 74, and 84

Thus 4 participants

I hope this explained it!

Answer:

no more than 53

Step-by-step explanation:

Answer:

no more than 53

Step-by-step explanation:

I can confirm this because I did it myself not because of the guy above me  

Answer:

13 units

Step-by-step explanation:

Use the pythagorean theorem and find the hypotenuse.

a^2 + b^2 =c^2  

Draw the triangle by connecting the dots so you can see the legs.

one leg is 8 units and one leg is 10 units

8^2 + 10^2 = c^2

64 +100= c^2

164 = c^2

Find the square root of 164 which is 12.8. Round to 13

Answer:last one

Step-by-step explanation:

an integer is a whole #...it cant be a fraction...it can be a negative # though

Answer:

–23, –7, 5, 9, 190

Step-by-step explanation:

Answer:

84

Step-by-step explanation:

Make a proportion

We know that 63 divide by a number has to equal 75%

63/x=75/100

Cross multiply

75x=6300

Divide by 75 on both sides

x=84

So , his deck has 84 wooden boards

Hope this helps! :)

Answer:

he had 84 wooden boards

Step-by-step explanation:

[tex]\frac{63}{75}[/tex] [tex]\frac{x}{100}[/tex]   =  6300÷ 75=84

Answer:

76545

Step-by-step explanation:

Work Shown:

a = x, b = 3, c = 4

a^2 + b^2 = c^2  ... pythagorean theorem

x^2 + (3)^2 = (4)^2

x^2 + 9 = 16

x^2 = 16 - 9

x^2 = 7

x = sqrt(7)

x = 2.64575131106459

x = 2.6

In a right triangle with one leg of length 3, the other leg of length 4, and the hypotenuse of length x, the Pythagorean theorem formula (3² + 4² = x²) gives the length of x as √25, or 5 units.

In Mathematics, a right triangle has one angle that is a right angle (90 degrees). In these triangles, the Pythagorean theorem applies, which says that the square of the length of the longest side (hypotenuse) is equal to the sum of squares of the other two sides (legs).

If x is a leg of the triangle, then its length can be found by rearranging the Pythagorean theorem formula. If the length of one leg is 3, the other is 4, and the length of the hypotenuse is x, then the equation is: 3² + 4² = x².

That simplifies to 9 + 16 = x², and further to x² = 25. Taking the square root of both sides gives us the length of x as 5 units.

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Answer:the answer is D

Step-by-step explanation:

The correct solution of the expression is,

⇒ log (125u³v⁶ / w⁹)

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The expression is,

⇒ 3 log (5uv²/w³)

Now, We can simplify by the definition of logarithmic function as;

⇒ 3 log (5uv²/w³)

⇒ log (5uv²/w³)³

⇒ log (125u³v⁶ / w⁹)

Thus, The correct solution of the expression is,

⇒ log (125u³v⁶ / w⁹)

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Answer:

x=-2

Step-by-step explanation:

|x+5|=3

-2+5=3

Answer:

16

Step-by-step explanation:

simplify

2(9) - 2

18 - 2

16