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Sholpan [36]
3 years ago
12

Martina begins a five at sea level. She dives down 20 feet, and then rises 7 feet. She dives again, going down 9 more feet. How

far below sea level is Martina?
Mathematics
1 answer:
mojhsa [17]3 years ago
4 0

Answer:

<h2>22<em> </em><em>feet</em><em> </em><em>below</em></h2>

Step-by-step explanation:

<h2>Total down 20+9=29</h2><h2>Total up =7</h2><h2>Net = 29-7=22feet</h2>
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Which pair of numbers is relatively prime? A. 102 and 321 B. 10 and 45 C. 3 and 51 D. 35 and 72
Natali [406]
Okay. I will list all the relatively prime numbers up to 331.
2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101, 103,107,109,113,127,131,137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331.
Okay, so look at this list and see which match up. 
For A. 102 and 312. Neither of these numbers are relatively prime.
For B. 10 and 45. Neither of these are relatively prime. 
For C. 3 and 51. 3 is a relatively prime number, 51 is not. 
For D. 35 and 72. Neither of these are relatively prime numbers.
But the answer would be D. because to get a relatively prime pair of numbers you have to have both of them not be divisible by the same number. 102 and 312 can be divided 2, so that's not the answer. 10 and 45 can be divided by 5, so that is incorrect. 3 and 51 can be divided by 3, so that is also incorrect. 35 and 72 cannot be divided by the same numbers. 
So, the answer is D. 35 and 72.
3 0
3 years ago
Read 2 more answers
Graph the function <br><br> x+y=0
Dimas [21]

Answer:

Step-by-step explanation:

0

6 0
3 years ago
the bases of a trapezoid have lengths of 8 feet and 14 feet. Find the length of the midsegment of the trapezoid .
LiRa [457]

Answer:

11 ft

Step-by-step explanation:

The midsegment is 1/2 of the top and bottom segments

1/2(8+14)

1/2(22) = 11

5 0
3 years ago
Tell whether the sequence is arithmetic. If it is, identify the common difference.
kiruha [24]

Answer:

Option A is correct not arithmetic

Explanation:

We have given terms \frac{1}{2},{1}{3},{1}{4}  these terms are not an arithmetic progression because

Arithmetic progression is the sequence of terms in which difference between successive and proceeding terms is same.

d=a_2-a_1

we can see the difference between \frac{1}{3} and \frac{1}{2} is \frac{-1}{6}

Whereas, the difference between \frac{1}{4}  and \frac{1}{3} is \frac{-1}{12}.

5 0
3 years ago
Read 2 more answers
HELPPP PLEASEEEEEEEEE
Mashutka [201]
For synthetic division:
1) Write the coefficients of the polynomial under the division symbol, in order. Make sure you include coefficients that are 0, so they may not be written out in the polynomial! 
The coefficients are 7, 1, 0 (the coefficient of x), and -4 in that order

2) The divisor is in the form of x - a. The number "a" goes outside the bracket.
a = 5

Since 7, 1, 0, -4 are under the bracket and 5 is outside the bracket, the answer is C.

------

Answer: C
7 0
3 years ago
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