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alexandr1967 [171]
3 years ago
5

A submarine is descending to examine the seafloor 2,100 feet below the surface. It takes the submarine 2 hours to make this desc

ent. Write an equation to represent the relationship between the submarine's elevation and time.
Another submarine’s descent can be represented as y=-240x, where y is the elevation and x is time in hours. How long will it take this submarine to make the descent?
Mathematics
2 answers:
igomit [66]3 years ago
8 0

Answer:

-1050

Step-by-step explanation:

I know the answer because descending means going down so 2100 is the big number and its negative to if you do -2100 divided by 2 then you will get -1050.

balu736 [363]3 years ago
6 0
It took me a lil bit to do this but I got -1050
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Calcula para la razón trigonométrica considerando la razón correspondiente del ángulo opuesto:Sen (-45º)
Lostsunrise [7]

Answer:

sen(-45^{o})-\frac{\sqrt{2}}{2}

Step-by-step explanation:

Para resolver este problea podemos comenzar con las identidades pares e impares, las cuales nos dicen que:

sen(-u)=-sen(u)

por lo que podemos reescribir nuestro problema como:

sen(-45°)=-sen(45°)

Luego podemos tomar los triángulos comunes (ver imagen adjunta).

y calcular la razón de seno en donde:

sen \theta = \frac{opuesto}{hipotenusa}

para obtener:

sen(-45^{o})=-\frac{1}{\sqrt{2}}

ahora podemos racionalizar la fracción para obtener:

sen(-45^{o})=-\frac{1}{\sqrt{2}}*\frac{\sqrt{2}}{\sqrt{2}}

sen(-45^{o})=-\frac{\sqrt{2}}{2}

7 0
3 years ago
Find the sum of the arithmetic sequence.<br><br> -10, -7, -4, -1, 2, 5, 8
Vadim26 [7]
The arithmetic sequence is +3 for every number you move to the right.
4 0
3 years ago
. How can you know if 2 shapes are congruent? Draw an example of 2 congruent triangles and label how you know.
ValentinkaMS [17]

Triangle ABC and triangle DEF are congruent by the SAS Congruence Postulate

<h3>What are congruent triangles?</h3>

Two triangles are said to be congruent if they have the same shape and their corresponding sides are also congruent.

We can say that two triangles are congruent using these 5 rules:

1: SSS or the side, side, side rule, that means that we have two triangles with all three sides equal.

2. SAS or side, angle, side states that in the two triangles, two sides and the included angle are equal.

3. ASA or angle, side, angle states that in two triangles, the two angles and the included side are equal.

4. AAS or angle, angle, side states that we have two triangles where two angles and the non-included side are equal.

5. HL or the Hypotenuse Leg rule states that, if the hypotenuse and one leg of one right-angled triangle are equal to the corresponding hypotenuse and leg of another right-angled triangle, then the two triangles are congruent.

Two triangles are said to be congruent if they have the same shape and their corresponding sides are also congruent.

Example:-From the diagram, given that:

AB = DE, BC = EF and ∠B = ∠E

Triangle ABC and triangle DEF are congruent by the SAS Congruence Postulate

Find out more on congruent triangles at:

brainly.com/question/2644832

#SPJ1

6 0
2 years ago
17 years into minutes
vitfil [10]

Answer:

8,935,200 minutes

Step-by-step explanation:

24x60 is 1440 (minutes in one day)

1440x365 is 525,600 (minutes in one whole year)

525,600x17 is 8,935,200 (minutes in 17 years)

3 0
3 years ago
Read 2 more answers
camille invested $3000 into an account that earned annual simple interest. she made no deposits or withdrawals, and after 9 yrs,
KonstantinChe [14]

Answer:

6.5 %  

Step-by-step explanation:

The simple interest formula is

I = Prt

Data:

I = $1755

P = $3000

t = 9 yr

Calculation:

1755 = 3000 × r × 9

1755 = 27 000 r

Divide each side by 27 000

r = 1755/27 000 = 0.065 = 6.5 % APR

The annual percentage rate was 6.5 %.

8 0
4 years ago
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