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A scuba diver is 30 feet below the surface of the water 10 seconds after he entered the water and 120 feet below the surface after 40 seconds. What is the scuba diver's rate of change (include the units)?
Find slope(Rate of Change)

Answer:

22.5 miles per hour

Step-by-step explanation:

Given system of equations

5(s-w)=900

4(s+w)=900

Set equations equal to each other

5(s-w)=4(s+w)

5s-5w=4s+4w

s-5w=4w

s=9w

Solve for w using the substitution s=9w

4(s+w)=900

4(9w+w)=900

4(10w)=900

40w=900

w=22.5

Therefore, the speed of the wind is 22.5 miles per hour

Answer:

A. 4

Step-by-step explanation:

First, we can try the first option. 2/4 is equivalent to 6/12 when you multiply the fraction by 3 to get a common denominator. Since 6/12 is larger than 4/12, and the question has 1 answer, 4 is the only value that satisfices the statement and is the answer.

Answer:

48%

Step-by-step explanation:

I like to look at percentages as test grades. If you got a 130/250 on a test, you would simply need to view the dash line as a 'divided by'. So you would figure 130 divided by 250 is .52, or 52%... Then, you would need to subtract 52 from 100 to get 48% to get the percentage of people who do not walk to school.

48%

48% of 250 is 120

120+130=250

Answer:

132

Step-by-step explanation:

1 poster = $15

12 poster = $180

$4 discount * 12 posters = $48

180 - 48 = 132

so the answer is 132!

please mark brainliest i need 4 more!

Answer:

D

Step-by-step explanation:

40 is in the same place for B and C, 83 is in the same place for A and C, and 57 is in the same place for A and B.

Triangle D is not similar to the other  three triangle.

Similar triangle may have different sizes but the shape. In similar triangles, corresponding sides are always in the same ratio. The corresponding angles are congruent.

Therefore, triangle A, B and C are similar triangle because the corresponding angles are equal. The angles are 40°, 83° and 57°.

The  last triangle D has a different angles sizes which are 40°, 67° and 73°.

Therefore, triangle D is not similar to the other  three triangle.

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Answer: 585000mL

Step-by-step explanation:

We know that there are 1000 milliliters (mL) in a liter (L), hence the prefix milli meaning thousand (for future reference).

As a result, in order to find the amount of milliliters, we need to multiply the amount of liters by 1000.

585Lx1000 = 585000mL

Remember: 1L = 1000mL; mL = 1000L

Answer:

585 into milimiter is 585000000mm

Step-by-step explanation:

that is the answer thank you

Answer: answer 98 , 78

Step-by-step explanation:

the way you just flip then and your done

I'm almost absolutely positive the width is 40 and the length is 440

Answer:

o 1)

[tex]Y= 6x + 11 \\ \\ 6x = Y - 11 \\ \\ x = \frac{Y - 11}{6} \\ \\ x = \frac{Y}{6} - \frac{11}{6} [/tex]

___o__o__

o 2)

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

[tex]b = \frac{2A}{h} [/tex]

[tex]h = \frac{2A}{b} [/tex]

Answer:

1/15

Step-by-step explanation:

K-12 quiz

The probability of rolling a 6 and spinning a vowel is 1/15.

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.

The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.

The degree to which something is likely to happen is basically what probability means.

We have,

A six-sided number cube is rolled, and then a spinner with 5 equal sections labeled A through E is spun.

Outcome for cube rolled = {1, 2, 3, 4, 5, 6}

Outcome spinner spun = {A, B, C, D, E}

So, the probability of rolling a 6 and spinning a vowel

= 1/6 x 2/5

= 1/15

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Answer:

Step-by-step explanation:

Dilated by a factor of three means that the two dimensions needed for the are are multiplied by 3.

width = 6*3 = 18

Length = 10 * 3 = 30

Area of dilated rectangle = 18*30 = 540 inches ^2

Answer:

the process by which organic matter exposed to minerals over a long period is turned into a stony substance.

Step-by-step explanation:

Picture example:

Answer: 2

Step-by-step explanation:

took the quiz

The length of the sculpture is 2 feet.

Given information about the sculpture:

Width of the sculpture = x feet

Depth of the sculpture = x + 6 feet

Length of the sculpture = 2x - 12 feet

The volume of a rectangular prism is given by the formula:

Volume = length × width × depth

According to the given information, the volume of the sculpture is 26 times its width in linear feet. Therefore, write the equation as:

Volume = 26 × Width

Volume = 26x

Write the expression for the volume of the sculpture using the dimensions:

Volume = (2x - 12) × x × (x + 6)

Set up the equation:

26x = (2x - 12) × x × (x + 6)

26x = (2x² - 12x) × (x + 6)

26x = 2x³ + 12x² - 12x² - 72x

26x = 2x³ - 72x

Now, rearrange the equation to set it equal to zero:

2x³ - 72x - 26x = 0

2x³ - 98x = 0

2x(x² - 49) = 0

2x = 0

x = 0

And, the value of x is calculated as:

x² - 49 = 0

x² = 49

x = ±√49

x = ±7

Since dealing with dimensions, have a negative value for x.

Therefore, x = 7.

The value of x is 7, find the length of the sculpture:

Length = 2x - 12

Length = 2 × 7 - 12

Length = 14 - 12

Length = 2 feet

So, the length of the sculpture is 2 feet.

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Answer:

Bill's bar has 57.3 grams of cocoa.

Step-by-step explanation:

The math part that your question is asking is: What is 69% of 83?

In order to use the percent 69% in a calculation, you need to change it to a decimal.

69% is 0.69

You move the decimal to the left, two places.

69% is 69.% If you don't see a decimal to start with and it is a whole number, then the decimal is starting on the right.

Move it two places to the left, you get

.69

Now MULTIPLY.

.69 × 83

= 57.27

ROUND your answer to the nearest tenth. That means only one digit to the right of the decimal.

57.27 rounds to 57.3

Bill's bar has 57.3 grams of cocoa.

It can be deduced that a non linear function is a function where the graph isn't a line.

Your information is incomplete as the circle isn't given. Therefore, an overview of the non linear function will be given.

A non linear function simply means a function where the graph is not a line. In this case, they do not have a constant slope.

A non linear function is a function shows graph isn't a line or part of a line. In such a case, the graph isn't a straight line.

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There are factors that makes a statement to be true. The false statement is that the projected unit sales volumes of branded footwear per company in Europe-Africa in Years 11-13 are higher than in North America.

The factors to consider in knowing a company's unit sales and market share of products such as branded footwear in a specific geographic region includes;

From the study, the market for branded athletic footwear is projected to grow approximately 9-11% annually in Latin America and the Asia-Pacific and 5-7% annually in North America an Europe-Africa during the Year 11-15.

Therefore the above is false since their projected growth is the same percentage.

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Answer:

6.25

Step-by-step explanation:

Using the rules of exponents

[tex](\frac{a}{b}) ^{-\frac{m}{n} }[/tex] = [tex](\frac{b}{a}) ^{\frac{m}{n} }[/tex]

[tex]a^{\frac{m}{n} }[/tex] = [tex](\sqrt[n]{a} )^m[/tex]

Given

[tex](\frac{8}{125}) ^{-\frac{2}{3} }[/tex]

= [tex](\frac{125}{8}) ^{\frac{2}{3} }[/tex]

= [tex](\sqrt[3]{125} )^2[/tex] × [tex]\frac{1}{(\sqrt[3]{8})^2 }[/tex]

= 5² × [tex]\frac{1}{2^2}[/tex]

= 25 × [tex]\frac{1}{4}[/tex]

= [tex]\frac{25}{4}[/tex]

= 6.25

Answer:

y=-4, x=8

Step-by-step explanation:

1)3x+5y=4

2)2x+3y=4

Make 1 and 2 have the same co-efficient of x or y (i chose x as it is easier to get to 6 then 15)

Label the 2 new equations as 3 and 4

3)6x+10y=8

4)6x+9y=12

Now we can take away to give

y=-4

Now we substitute this into 1 or 2

I chose 2:

2x+3(-4)=4

2x=4+12

2x=16

x=8

Answer:

x = 8

y = -4

Step-by-step explanation:

Multiply the first equation by 2:

⇒ 3x + 5y = 4  ⇒  6x + 10y = 8

(we will call this equation 3)

Multiply the second equation by 3:

⇒ 2x + 3y = 4  ⇒  6x + 9y = 12

(we will call this equation 4)

Subtract equation 3 from equation 4 to eliminate the x variable:

     6x + 9y = 12

-    6x + 10y = 8

              -y = 4

Therefore, y = -4

Substitute y = -4 into one of the equations and solve for x:

3x + (5 x -4) = 4

⇒ 3x - 20 = 4

⇒ 3x = 24

⇒ x = 8

Answer:interest =p×r×t ÷100

Time = 21/2 -5/2

Interest = 7150×5×5/100×2

answer =1787.5

Amount = P-I

7150-17875/10

Answer = 5362.5

Step-by-step explanation:

Answer:

5/8

Step-by-step explanation:

Please make me the brainlest

Answer:

there could be 28 possible pairs because 57/2=28.5

Step-by-step explanation:

Answer:

He is correct!

Step-by-step explanation:

one quarter of 9 is 2.25 cause if u divide 9 by 2, you get 4.50 which is one half, so if you divide 4.50 by 2 you get 2.25 which is one quarter of 9

Answer:

5 inches

Step-by-step explanation:

Area of the cake:

Area circle: πr²

Solve for r:

-Chetan K

Answer:

The cakes radius is 5 inches.

Explanation:

Steps:

→ [tex]\frac{1}{6}[/tex]πr² = 13

→ πr² = 13(6)

→ πr² = 78

→ r² = [tex]\frac{78}{\pi }[/tex]

→ r = [tex]\sqrt{\frac{78}{\pi }}[/tex]

→ r = 4.982787485

→ r = 5

Therefore the cake has a radius of 5 inches. Do not misunderstand that we are taking slice radius, its the radius of the cake all along.

Answer:

x = 4√2

Step-by-step explanation:

x² - 33 = -1            [ change sides ]

x² = -1 + 33          

x² = 32

x = √3   [changing sides, changes power of square, (²) turns square root,√ ]

x = √4 * 4 * 2

x = 4√2   .......final answer.

Answer:

x = 4√2 or x = −4√2

Step-by-step explanation:

Step 1: Add 33 to both sides.

x2 − 33 + 33 = −1 + 33

x2 = 32

Step 2: Take square root.

x = ±√32

x = 4√2 or x = −4√2

There are 8 laser beams.

The relationship between the three sides of a right-angled triangle is explained by the Pythagoras theorem, commonly known as the Pythagorean theorem. The Pythagorean theorem states that the square of a triangle's hypotenuse is equal to the sum of its other two sides' squares.

The length of the laser beams is the addition of the segments AD to segment CB (which are equal).

Using Pythagoras theorem in ECD

ED² = EC² + CD²

ED= √(12² + 35²)

ED = √144 + 1225

ED = 37 unit

Again In Triangle AED

AD² = EA² + ED²

AD=√15² + 37²

AD = 40 unit

Then, there are total of 80 ft of laser beams.

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Answer:

A) 2/3, -3/4, 1/2, -1/3

Start by making all of them have the same denominator. They all multiply to 12 easily, so I will use that. Remember that whatever you do to the top you have to do to the bottom, and vice versa.

Multiply 2/3 by 4/4 to get 8/12

Multiply -3/4 by 3/3 to get -9/12

Multiply 1/2 by 6/6 to get 6/12

Multiply -1/3 by 4/4 to get -4/12

Least to greatest (new): -9/12, -4/12, 6/12, 8/12

Least to greatest (old): -3/4, -1/3, 1/2, 2/3 <-------- this is your answer

C) -9/10, -8/9, -4/5, -41/45

Make them have the same denominator. They all multiply to 90, so I'll use that.

Multiply -9/10 by 9/9 to get -81/90

Multiply -8/9 by 10/10 to get -80/90

Multiply -4/5 by 18/18 to get -72/90

Multiply -41/45 by 2/2 to get -82/90

Least to greatest (new): -82/90, -81/90, -80/90, -72/90

Least to greatest (old): -41/45, -9/10, -8/9, -4/5 <-------- this is your answer

E) -3, -2 2/3, -3 1/6, 2 3/4

Make the mixed numbers into improper fractions by multiplying the whole number with the denominator, and then adding the numerator:

-3 ---> -3/1 (this one's easy)

-2 2/3 ---> -8/3

-3 1/6 ---> -19/6

2 3/4 ---> 11/4 (this one is the only positive one, so it will be the greatest)

Same denominator. I'm using 12.

Multiply -3/1 by 12/12 to get -36/12

Multiply -8/3 by 4/4 to get -32/12

Multiply -19/6 by 2/2 to get -38/12

Multiply 11/4 by 3/3 to get 33/12

Least to greatest (new): -38/12, -36/12, -32/12, 33/12

Least to greatest (old): -3 1/6, -3, -2 2/3, 2 3/4 <-------- this is your answer

Answer:

f : 8

Step-by-step explanation:

hope that helps sorry if im wrong

Answer: 7 km per hour

Step-by-step explanation:

shi i may be wrong but im pretty sure thats his average speed

Answer:

The Area of the composite figure would be 76.26 in^2

Step-by-step explanation:

According to the Figure Given:

Total Horizontal Distance = 14 in

Length = 6 in

To Find :

The Area of the composite figure

Solution:

Firstly we need to find the area of Rectangular part.

So We know that,

[tex]\boxed{ \rm \: Area \: of \: Rectangle = Length×Breadth}[/tex]

Here, Length is 6 in but the breadth is unknown.

To Find out the breadth, we’ll use this formula:

[tex] \boxed{\rm \: Breadth = total \: distance - Radius}[/tex]

According to the Figure, we can see one side of a rectangle and radius of the circle are common, hence,

[tex] \longrightarrow\rm \: Length \: of \: the \: circle = Radius[/tex]

[tex]\longrightarrow \rm \: 6 \: in = radius[/tex]

Hence Radius is 6 in.

So Substitute the value of Total distance and Radius:

[tex] \longrightarrow\rm \: Breadth = 14-6[/tex]

[tex] \longrightarrow\rm \: Breadth = 8 \: in[/tex]

Hence, the Breadth is 8 in.

Then, Substitute the values of Length and Breadth in the formula of Rectangle :

[tex] \longrightarrow\rm \: Area \: of \: Rectangle = 6 \times 8[/tex]

[tex]\longrightarrow \rm \: Area \: of \: Rectangle = 48 \: in {}^{2} [/tex]

Then, We need to find the area of Quarter circle :

We know that,

[tex]\boxed{\rm Area_{(Quarter \; Circle) } = \cfrac{\pi{r} {}^{2} }{4}} [/tex]

Now Substitute their values:

[tex]\longrightarrow\rm Area_{(Quarter \; Circle) } = \cfrac{3.14 \times 6 {}^{2} }{4} [/tex]

Solve it.

[tex]\longrightarrow\rm Area_{(Quarter \; Circle) } = \cfrac{3.14 \times 36}{4} [/tex]

[tex]\longrightarrow\rm Area_{(Quarter \; Circle) } = \cfrac{3.14 \times \cancel{{36} } \: ^{9} }{ \cancel4} [/tex]

[tex]\longrightarrow\rm Area_{(Quarter \; Circle)} =3.14 \times 9[/tex]

[tex]\longrightarrow\rm Area_{(Quarter \; Circle) } = 28.26 \: {in}^{2} [/tex]

Now we can Find out the total Area of composite figure:

We know that,

[tex]\boxed{ \rm \: Area_{(Composite Figure)} =Area_{(rectangle)}+ Area_{ (Quarter Circle)}}[/tex]

So Substitute their values:

[tex]\longrightarrow \rm \: Area_{(Composite Figure)} =48 + 28 .26[/tex]

Solve it.

[tex]\longrightarrow \rm \: Area_{(Composite Figure)} =\boxed{\tt 76.26 \:\rm in {}^{2}} [/tex]

Hence, the area of the composite figure would be 76.26 in² or 76.26 sq. in.

[tex] \rule{225pt}{2pt}[/tex]

I hope this helps!