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3 years ago

10

A submarine started at sea level and was 400 meters below sea level in 10 minutes.

1 answer:

ladessa [460]3 years ago

3 0

Because it is BELOW sea level after 10 minutes, it straight away cannot be A) or B), because ascended means going up, so it has to be either C) or D).

I believe the answer is C), as the answer for D) would be -40 meters per minute, but it's still 40. I'm not sure though, so it's either C) or D).

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Ans this question any one

Alenkasestr [34]

Answer:

None of them

Step-by-step explanation:

A polynomial must have a pronumeral that is to the power of an integer, and you can't divide by a variable such as 2/x so for

a) there is a $\sqrt{x}$ which means it's not a polynomial as $\sqrt{x}$ is the same as $x^{1/2}$

b) The second term is being divided with a variable so that can't be a polynomial

c) There is a $\sqrt{3x}$ so it can't be a polynomial

d) There is a $\sqrt{y}$ so it can't be a polynomial

7 0

3 years ago

Astrid wants to buy pumpkins and watermelons. She wants to buy more than 10 fruits, and she has a

Stolb23 [73]

Answer:

Buying 7 pumpkins and 3 watermelons, Astrid doesn't meet her two expectations.

Step-by-step explanation:

Let

P ----> the number of pumpkins and watermelons she can buy

W ----> the number of watermelons she can buy

we know that

$P+W > 10$ ----> inequality A

$5.5P+3.5W < 117$ ---> inequality B

<em>Note</em> Both inequalities are given in the problem

If Astrid buy 7 pumpkins and 3 watermelons

then

we have the ordered pair (7,3)

Remember that

If a ordered pair is a solution of the system of inequalities, then the ordered pair must satisfy both inequalities

For P=7, W=3

<u><em>Verify Inequality A</em></u>

$P+W > 10$

substitute the value of P and the value of W

$7+3 > 10$

$10 > 10$ ----> is not true

so

The ordered pair not satisfy the inequality A

<u><em>Verify Inequality B</em></u>

$5.5P+3.5W < 117$

substitute the value of P and the value of W

$5.5(7)+3.5(3) < 117$

$49 < 117$ ----> is true

so

The ordered satisfy the inequality B

therefore

Buying 7 pumpkins and 3 watermelons, Astrid doesn't meet her two expectations.

8 0

3 years ago

Please answer this, I’m late on my assignment and I don’t know what to do. Please answer this correctly and not just for points.

tino4ka555 [31]

Answer:

ok im gonna do only one but let others do it to, 2 i believe is 5.3333333

Step-by-step explanation:

4 0

4 years ago

Solve for X in circle with center O

andreev551 [17]

D I think so do not get mad if I am wrong

5 0

3 years ago

A window washer uses the proportional relationship y = kx to determine how long (y) it will take him to wash any number of windo

Kobotan [32]

C.

By plugging in the numbers into the equation, 8 = 250(k), we can determine that 8 ÷ 250 = 0.032.

4 0

3 years ago