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lora16 [44]
3 years ago
15

Marcus dives from the surface of the ocean to a reef 18 meters below sea level. What integer represents Marcus's location relati

ve to the surface? How far does Marcus have to go to return to the surface?
Mathematics
1 answer:
WINSTONCH [101]3 years ago
8 0
He would have to go up 18 meters and the integer would be -18 since he is going below sea level.
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Which expressions are equivalent to (2^5)^-2
Aleonysh [2.5K]
Answer: Choice B) 2^(-10) and 1/1024

------------------------------------------------------

Explanation:

We'll use these two rules
Rule 1: (a^b)^c = a^(b*c)
Rule 2: a^(-b) = 1/(a^b)

Using rule 1 above, we can say
(2^5)^(-2) = 2^(5*(-2)) = 2^(-10)
So 2^(-10) is one of the answers

Now use rule 2 to convert 2^(-10) into...
2^(-10) = 1/(2^10) = 1/1024
so 1/1024 is the other answer
6 0
3 years ago
What is the solution set of { x I x < -5} n { x I x> 5
Shtirlitz [24]

For this case we have to:

x Represents the solution of all strict minor numbers to -5.

x> 5: Represents the solution of all strict major numbers to 5.

The global solution is given by the intersection of both sets. The symbol of intersection is denoted as: ∩

If we represent the solution in a numerical line, it gives us empty. do not intersect.

Answeer:

Empty set

5 0
3 years ago
To solve a system of inequalities ayana isolated y in the first equation and then substituted for y in the second equation. what
vitfil [10]

Answer:

(- 3, - 6 ) , (1, 2 )

Step-by-step explanation:

2y = 4x ( divide both sides by 2 )

y = 2x → (1)

x² + y = 3 → (2)

Substitute y = 2x into (2)

x² + 2x = 3 ( subtract 3 from both sides )

x² + 2x - 3 = 0 ← in standard form

(x + 3)(x - 1) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 3 = 0 ⇒ x = - 3

x - 1 = 0 ⇒ x = 1

Substitute theses values into (2) for corresponding values of y

x = - 3 : y = 2(- 3) = - 6 ⇒ (- 3, - 6 )

x = 1 : y = 2(1) = 2 ⇒ (1, 2 )

8 0
2 years ago
PLZ ANSWER RIGHT AWAY!!!!!!!!!!!!!
Bingel [31]
1/8 = 3 3/4 minutes

1/8 × 8 = 1 project

1/8 x 8 = 3 3/4 × 8

1 project = 3 3/4 × 8 minutes

3 \frac{3}{4} *8

\frac{15}{4} * \frac{8}{1}

\frac{120}{4}

30 minutes


1 project = 30 mintues
The answer is D

3 0
3 years ago
Read 2 more answers
Twice the difference of a number and seven is equal to three times the sum of the number and seven
Nana76 [90]
2(n-7) = 3(n+7)
2n-14 = 3n + 21
   -35  = n  (answer)
5 0
3 years ago
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