Mathematics High School

From - 12 surface sea level, a submarine descends 20 feet per minute. Where is the submarine in relation to sea level 7 minutes after it starts descending?

Answers

Answer 1

Answer:

-152 feet in relation to sea level.

Step-by-step explanation:

If it descends 20 feet per minute, you just multiply the distance by the minutes. So 20x7 and you will get 140. You can't forget that it's already -12 below sea level, so it's 12 feet deeper. It's -152 feet in relation to sea level.

Related Questions

help help help help help help help help help help help help

Answers

Answer: 25

Step-by-step explanation:

Write the slope intercept equation for this table

Answers

Answer:

y = 2x -4

Step-by-step explanation:

y2 - y1 / x2 - x1

-4 - (-6)/ 0 - (-1)

= 2

y = mx + b

y = -2x + b

-4 = -2(0) + b

-4 = 0 + b

-4 = b

So the equation is y = 2x -4

The total surface area of a cube is 294cm^2.

Work out the volume of the cube.​

Answers

Answer:

343 cm ^3

Step-by-step explanation:

A cube has 6 squares of equal sizes. 294/6 = 49

The area of one square is 49

Since the area is the length squared, the square root of 49 is 7.

Volume of a cube is area times height. 49 x 7 = 343 cm^3

Which quadratic function in vertex form has a vertex at (−5 , −4) and passes through the point (−2 , −1)?

y=−13(x+5)^2−4

y=−13(x−5)^2+4

y=13(x−5)^2−4

y=13(x+5)^2−4

Answers

Answer:

y = 1/3(x + 5)^2 - 4

Step-by-step explanation:

The general vertex form is;

y = a(x-h)^2 + k

From the question, (h,k) are the coordinates of the vertex which is (-5,-4)

So we have

y = a(x + 5)^2 -4

So we need to get the leading coefficient

Simply substitute the point it passes through

x = -2 and y = -1

-1 = a(-2 + 5)^2 - 4

-1 = a(3)^2 -4

-1 = 9a -4

9a = 4-1

9a = 3

a = 3/9

a = 1/3

So the equation is;

y = 1/3(x + 5)^2 - 4

PLEASE HELP!! find the value of c

Answers

Step-by-step explanation:

step 1. so you want to convert a quadratic (ax^2 + bx + c) into a perfect square

step 2. therefore c is half of b then squared

step 3. (26/2)^2 = 169

step 4. (-22/2)^2 = 121

step 5. (-13/2)^2 = (-6.5)^2 = 169/4 = 42.25.

The ryan family pays 1,347 per month for rent. If their rent doesn't change, how much will they pay in dollars for rent over 30 years

Answers

Answer: 4,84,920

Step-by-step explanation:

Given

The rent per month is 1347

for a year it is 12 months

for 30 years it is [tex]30\times 12=360\ \text{months}[/tex]

Rent for 30 years it is

[tex]\Rightarrow \text{rent}=1347\times 360=484,920[/tex]

I’m posting too many


Solve each equation 51/2=d +1/4 what is d?

Answers

D = 101/4
if you need it in decimal form it is 25.25
if you need it in mixed number form it is 25 1/4

In Circle F, determine the value(s) of x.

Answers

Answer:

since inscribed angle is half of the central angle

x²+22=2(x²+3)

x²+22=2x²+6

22-6=2x²-x²

16=x²

x=√16=±4

determine the value(s) of x=±4

may i get someone who can answer this question. Ruth has 12 feet of ribbon.
She uses 7 feet of it for a craft project and gives 28 inches of it to her sister.
How many inches of ribbon does she have left?

Answers

Answer:

2ft 8in

Step-by-step explanation:

Text if you want explanation. Welcome❤

A plane can have more than one rudder?

True or False

Please help me!

Answers

True

And don’t click the link

What is the distance between the points (7, 8) and (-8, 0) on a coordinate grid?

Answers

Answer:

17 units

Step-by-step explanation:

Moving from (-8, 0) to (7, 8), we see x changing by 15 units from -8 to 7 and y changing by 8 units from 0 to 8.

Regard 15 units as the horizontal leg of a right triangle and 8 units as the vertical leg.  We use the Pythagorean Theorem to determine the length of the hypotenuse of this right triangle and interpret the result as the distance between the points:

d = √(15² + 8²) = √289 = 17

The distance between the given points is 17 units.

Andrew buys 4 books for the same price, and also a video for $18. His total bill was $110. What was the cost of a book

Answers

First you would subtract 18 from 110 and get a result of 92 then divide by 4 and get 23 so each book is 23 dollars hope this helps mark as brainlist

Please help Lia brought 21 shirts and plants. Her total was $357. Pants cost $25 each, and shirts cost $14.50 each. How many of each item did she buy? Show your work
Will give points!!!

Answers

Answer:

she brought 21 shirts and 2 pants

Step-by-step explanation:

shirts

21× 14.50 = $ 304.5

357- 304.5 = $ 52.5

pants

52.5÷ 25 = 2.1

hii please help i’ll give brainliest!!

Answers

Answer:

first answer

Step-by-step explanation:

yeaaaaaaaaaa

PLEASE HELP ME PLEASE PLEASE PLEASE

Answers

Answer:

Step-by-step explanation:

l/100 km   means   liters per 100 Kilometre. How many liters a car need for traveling 100 km.

Km/l  means  liter per km

what is the x-intercept of y=2x-1​

Answers

Answer::::::::::

(1/2,0)

The bids in an online auction are represented by the arithmetic sequence shown below. Write an explicit formula to represent the bids as an arithmetic sequence. What is the ​bid?
​207,216,225,234

Answers

Answer:

aₙ = 207+9*(n-1)

Step-by-step explanation:

a1 = 207+9*(1-1) = 207

a2 = 207+9*(2-1) = 216

a3 = 207+9*(3-1) = 225

....

aₙ = 207+9*(n-1)

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Which expression has a value of 13?


(20 ÷ 4) − 4 + 3 x 2

(18 ÷ 2) + 6 ÷ 6 + 3

(16 ÷ 4) + 3 x 4 − 1

(10 ÷ 2) − 3 + 4 x 2

Answers

(18/2)+6/6+3

Step-by-step explanation:

(18/2)=9

6/6=1

9+1=10

10+3=13

Use PEMDAS

Here’s a picture of it

Answers

Answer:

Scientific notation: 2.08×10∧2

Expanded form: 208

what % of $4 = $1
Please hurry​

Answers

Answer:

25%

Step-by-step explanation:

The answer is 25%

hope that is right..

What is the volume of the composite figure? Use 3.14 for π and round the answer to the nearest tenth of a cubic unit.


Answers

Answer:

V=1582.56 cubic cm

Step-by-step explanation:

Neck size, in inches, and number of teeth of 18 randomly selected puppies are compared. Which significance test should be used to see if neck size and number of teeth have a linear relationship? Assume all test conditions are met.

a
Two-sample z-test

b
Two-sample t-test

c
Two-proportion z-test

d
t-test for slope of regression line

e
One-proportion z-test

Answers

Answer:

D

Step-by-step explanation:

its just obvious

go bucs

WILL GIVE BRAINLIEST

Answers

It’s B Ps U gottttt thisssss

Of the tangent is 15/20 what’s the sine of the angle

Answers

Answer:

25

Step-by-step explanation:

Triangle ABC is similar to triangle DEF. What is the value of x in centimeters?

A. 17 cm

B. 16.5 cm

C. 15.4 cm

D. 18 cm

Answers

Answer:Triangle ABC is similar to triangle DEF. What is the value of x in centimeters?

Step-by-step explanation: it will be B

kdhdihfufngdjfhfhfjdjdyfifnfyf please help​

Answers

Answer:

mean: 6.9

median: 7

range: 2

Step-by-step explanation:

Calculate all of this please and you will get the brainlist

Answers

Answer:

4. 118 kg

w = 450 j ,  d = 3.8 m

w = mgh ⇒mg = w / h ⇒m = 450/3.8 = 118 kg

5. 9806.65 Joules

6. 25 J

Division sum:
20 ➗ 2 =

Answers

Answer:

10

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

20/2 = 10

When Beth buys 4 chocolates, she gets 8 free game tokens. Write the equation for the relationship between x and y. *

Answers

Answer:

y= 2x

y= x+4

Step-by-step explanation:

I am confused here.

since one data is given, the equation could be any of the two.

simplify " t+t-q+t-q-q"​

Answers

Answer:

-3q+3t

Step-by-step explanation:

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