# Math 2--questions

7. Find the sum.
–14 + 7 + (–3)

–24
–18
–10 ***
–4

8. A scuba diver descends 350 feet and then another 120 feet. Express the diver’s final depth as an integer.

–420 ft
420 ft **
–470 ft
470 ft

1. 👍 0
2. 👎 0
3. 👁 87
1. 7 is right. 8 is wrong.

1. 👍 0
2. 👎 0
2. 6. 470

1. 👍 0
2. 👎 0
posted by Sally
3. No.

1. 👍 0
2. 👎 0
4. -470?

1. 👍 0
2. 👎 0
5. Wow! You got it on the third try!

1. 👍 0
2. 👎 0

1. 👍 0
2. 👎 0

## Similar Questions

This is a reply to the question posted here http://www.jiskha.com/display.cgi?id=1178989522 As I explained there, you can find the parameters by defining: x1 = Sin(0.49 t) x2 = Cos(0.49 t) and treat this as an ordinary linear

asked by Count Iblis on May 13, 2007
2. ### probability

two fair six-sided dice are rolled and the sum of the dots on the top faces is recorded. a) complete the table, showing the number of ways each sum can occur sum: 1 2 3 4 5 6 7 8 9 10 11 12 ways:1 2 3 b)use the table to find the

asked by mary on November 27, 2012
3. ### Algebra

I have a few problems I need some help with. The first is Evaluate the sum. 1. There is an E like symbol on the top is 10 on the bottom n=1 and to the right (7-2n) 2. The next question is find a10 for an arithmetic sequence with

asked by Jess on April 3, 2013
4. ### Precalculus

Find the sum of the first 50 terms of the sequence 2,4,6,8........ That is twice the sum of 1+2+3+...+50 For 1+2+...+N, the sum is N(N+1)/2 The sum is therefore 2*[50*51)/2) = 2550

asked by Laura on June 16, 2007
5. ### calculus

find the sum of the series: 1. the sum from n=1 to infinity of ((-1)^n*(.2)^n)/n I simplified this to: (-.2)^n/n I know this is alternating, but how do I know what the sum is? 2. the sum from n=0 to infinity of 1/2^n Is this

asked by sarah on March 21, 2008
6. ### math

Find the two numbers that multiply to the product number and add to the sum number of the following: a)Product 563033256; Sum 51895 b)Product -43481220; Sum 28429 c)Product 2545124358; Sum -105619 I tried xy = product and x+y =

asked by Lily on December 3, 2007
7. ### math

A pair of dice is rolled. Find the probability of rolling ​a) a sum not more than 1010​, ​b) a sum not less than 77​, ​c) a sum between 33 and 77 ​(exclusive).

asked by Anonymous on February 28, 2017
8. ### Math

Minimizing Sum: Find two positive numbers whose sum is 100 and the sum of whose squares is a minimum.

asked by David on October 9, 2009
9. ### Calculus

The problem I have is a summation from 1 to infinity for (-1)^n/n. I have to find a partial sum that is in 0.001 of the infinite sum, my teacher says the fourth partial sum approximates the infinite sum, which is -7/12. I think to

asked by Sophie on May 5, 2009
10. ### Math

The sum of the first and fourth terms of an arithimetic sequences is 2 and the sum of their squares is 20 1. Find the common difference 2.find the sum of the first eight terms of the squence

asked by Ishimwe on March 12, 2016
11. ### maths

Find the sum of all 3-digit positive numbers N that satisfy the condition that the digit sum of N is 3 times the digit sum of N+3. Details and assumptions The digit sum of a number is the sum of all its digits. For example, 1123

asked by rohit on March 21, 2013

More Similar Questions