A dolphin swims 15 feet below sea level, and then jumps 4 feet above sea level. How far did the dolphin rise?

Answers

Answer 1

Answer:

19 feet

Step-by-step explanation:

The dolphin goes from 15 feet below then he goes above the ocean by 4. So add 15 + 4 to get 19 feet.

Related Questions

QUESTION 1
1.1
The sequence 1 ; 5 ; 11 ; 19 ; .......is a quadratic sequence.
1.1.1 Determine an expression for the nth term of the sequence.
(4)
(4)
1.1.2 Which term of the sequence is 2 549?
1.2
The following sequence of numbers is given: -2;-3; -6;-11;
(4)
1.2.1 Determine an expression for the nth term of the sequence.
1.2.2 Explain why the sequence of numbers will never contain a positive term.
(1)
[13]
GESTION 2

Answers

The nth terms of sequence 1 ; 5 ; 11 ; 19 is n² + n + -1 and the nth terms of sequence -2;-3; -6;-11; is -n² + 2n -3 .

What is quadratic sequence?

The differences (referred to as first differences) between every two successive terms are the same, then it is called an arithmetic sequence (which is also known as a linear sequence). But if the first differences are NOT same, and instead, the second differences are the same, then the sequence is known as a quadratic sequence.

According to the question

The sequence 1 , 5 , 11 , 19

First difference : 4 6 8

Second difference: 2 2

1.1.1>

Now, expression for the nth term of the sequence.

Quadratic equation

ax² + bx + c

at n= 1

a + b + c = 1 -----------------(1)

At n = 2

4a + 2b + c = 5 ------------------(2)

At n = 3

9a + 3b + c = 11 -------------------(3)

solving equation

Subtracting equation (3) from (2)

9a + 3b + c = 11

-4a - 2b - c = -5

5a + b = 6 ----------------------(4)

Subtracting equation (2) from (1)

4a + 2b + c = 5

-a - b - c = -1

3a + b = 4 ---------------------------- (5)

Subtracting equation (5) from (4)

5a + b = 6

-3a - b = -4

2a = 2

a = 1

Putting value in equation (5)

3a + b = 4

3*1 + b = 4

b = 1

Substituting the value in equation (1)

a + b + c = 1

1 + 1 + c = 1

c = -1

Substituting the value in the quadratic equation

x² + x + -1

For nth term

n² + n + -1

1.1.2>

Term of the sequence is 2549

Now,

using the nth term

n² + n + -1 = 2549

n (n+1) = 2550

n (n+1) = 50 * 51

n = 50

1.2> sequence of numbers is given: -2 ,-3 ,-6 ,-11

First difference = -1 -3 -5

Second difference = -2 -2

1.2.1 >

Now , expression for the nth term of the sequence.

Quadratic equation

ax² + bx + c

at n= 1

a + b + c = -2 -----------------(1)

At n = 2

4a + 2b + c = -3 ------------------(2)

At n = 3

9a + 3b + c = -6 -------------------(3)

solving equations

Subtracting equation (3) and (2)

9a + 3b + c = -6

-4a - 2b - c = 3

5a +b = -3 ----------------(4)

Subtracting equation (2) and (1)

4a + 2b + c = -3

-a - b - c = 2

3a + b = -1 -------------------(5)

Now,

Subtracting equation (5) and (4)

5a +b = -3

-3a - b = 1

2a = -2

a = -1

Putting value of a in equation (5)

3*-1 + b = -1

b = 2

Substituting values in equation (1)

-1 + 2 + c = -2

c = -3

nth term

-n² + 2n -3

1.2.2>the sequence of numbers will never contain a positive term.

because its first term is -ve and difference between consecutive term is always -ve. or as per nth term n² is a -ve term .

Hence, the nth terms of sequence 1 ; 5 ; 11 ; 19 is n² + n + -1 and the nth terms of sequence -2;-3; -6;-11; is -n² + 2n -3 .

To know more about Quadratic equation here:

https://brainly.com/question/2263981

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Can someone please help with this problem ASAP!!!

Answers

Answer:

Step-by-step explanation:

(1,5 ) indicates that for every 1 book they make 5 dollars so the point means that for every book they sell they make 5 dollars.

WILL GIVE BRAINLEST!!!

Answers

Answer:

18 12

6 22

Step-by-step explanation:

<1 is a secant-secant angle (it lies outside the circle, created by two lines that cut through the circle). The measure of a secant-secant angle is half the difference of the measures of the intercepted arcs:

<1=(0.5)(98-54)

<1=(0.5)(44)

<1=22°

Factorise the following expression:
[tex] {a}^{2} + 10a + 24[/tex]

Answers

Step-by-step explanation:

[tex]a^{2} + 10a + 24[/tex]

= [tex]a^{2}[/tex] + 6a + 4a + 24

= a(a + 6) + 4(a + 6)

= (a + 6)(a + 4)

Answer:

solution:

[tex] {a}^{2} + 10a + 24[/tex]

a²+6a+4a+24

a(a+6)+4(a+6)

(a+6)(a+4) is your answer

Can Someone Help Me. ? Please

Answers

Answer:

the first answer maybe?

Step-by-step explanation:

i think the third one. im not sure

PLS HELP: DETERMINE WHETHER THE PAIR OF RATIOS FORMS A PROPORTION

Answers

Answer:

Step-by-step explanation:

To form a proporion, both would need to be a multiple of the same thing, whcih they aren't

No the is no no no no no

What is the volume of the prism? Enter your answer in the box as a mixed number in simplest form: 41 cm 22cm 6 cm cm

Answers

Answer:

V = 5412 cm^3

Step-by-step explanation:

[tex]v \: = 41 \times 22 \times 6 \\ \\ v = 5412 \: {cm}^{3} [/tex]

I hope that is useful for you :)

help please i need it asap! thank tou

Answers

Answer:

X = 3

Step-by-step explanation:

x= 6 x 1/2

On the Federal Job site it states that at a 90% confidence level that the true population mean salary of High School Mathematics teachers in Bergen County New Jersey is between $52,000 and $108,000 per year. 9) I am offered a job as a High School Mathematics teacher in Dale county Florida. The salary they offer is $48,000 a year. Can I make any conclusions based on the confidence interval

Answers

Answer:

Option c (I cannot........Florida) is the appropriate response.

Step-by-step explanation:

The given statement of query seems to be incomplete. Please find the attachment of the complete problem below.

Throughout New Jersey, the Federative Recruitment agency informs you of the average wage of mathematics in high schools.Unless you're in Florida and therefore don't know concerning Dale County Florida wages, this same work you've been given is well beyond the area whereby you know the compensation of teachers or instructors, you can't make any view.

The other three given alternatives aren't related to the question. Thus option c is the correct one.

Roseanne drew a circle with a radius of 20.2 cm. What was the approximate circumference of the circle if you use 3.14 for ?

A. 63.428 cm
B. 126.856 cm
C. 126.956 cm
D. 253.712 cm

Answers

E: A= 6a^2

1. Which equation represents the line that passes through the points (1,1) and (-2,7)?

a. y=-2x + 9
b. y=-2x + 3
c. y=-1/2x + 8
d. y=-1/2x + 6

Answers

Answer:

Step-by-step explanation:

find slope which is -2 then plug into equation y=mx+b to find constant of 3

Which statement best describes the association?

A.
The data shows a negative association with a trend line of y = -2x + 3

B.
The data shows a negative association with a trend line of y = -2x – 3.

C.
The data shows a positive association with a trend line of y =
x
2
+ 3

D.
The data shows a positive association with a trend line of y = 2x – 3

Answers

Answer:

c the data shows positive associations with trend line

which expression is equivalent to 8^8x8^-5

Answers

Step-by-step explanation:

{(2)³}⁸×{(2)³}-⁵

2²⁴× 2-¹⁵

2²⁴-¹⁵. ( subtract 24 and 15)

2⁹= 512

So...

8×8×8= 512

hence

8³ Answer

please helppppppppppp...... 17 points

Answers

Answer:

x = 24.5

Step-by-step explanation:

the angles form a straight line, and a straight line equals to 180°

=> (5x + 8) + (3x - 24) = 180

=> 8x = 196

=> x = 24.5

Meiling needed $5.35 to buy a ticket to a show. In her wallet, she found 2 dollar bills, 11 dimes, and 5 pennies. How much more money does Meiling need to buy the ticket?

Answers

Answer:

no she needs $2.20 more

Step-by-step explanation:

2+ 1.10+.05= $3.15

$5.35 - $3.15 = the answer

What is the angle between any two windmills blades in the windmill

Answers

I think it’s 120. Hope this helps

Michael has a pail that holds 5 gallons of
water. How many quarts of water does the
pail hold?

Answers

Answer:

20 quarts.

Step-by-step explanation:

Because there are 20 quarts in 5 gallons.

Find the value of x. Round to the nearest tenth

Answers

The answer is 15.1
Hope that helps.

My answer is 15.3, I am pretty sure.

An entry code into a building is a 5-digit number.
The number of different codes can be counted using
a. permutations
b. combinations

Answers

Answer:B

Step-by-step explanation:

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