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Which type of mine involves digging tunnels and shafts deep underground? Question 19 options: 1) strip mine 2) openpit mine 3) subsurface mine 4) smelting
answered
Aug 17, 2019
Physics
high-school
1
vote
211k
views
sally is 1 year older than3 times the age of joe. chris is 5 years younger than 6 times the age of joe. if sally and chris are the same age, how old is joe?
answered
Jul 29, 2019
Mathematics
middle-school
2
votes
116k
views
Which technique is most appropriate to use to solve each equation? Drag the name of the technique into the box to match each equation. x² + 4x = 15 2x(x−3)=0 A. square root property B. zero product property
answered
May 20, 2019
Mathematics
high-school
1
vote
31.0k
views
In the lightning thief what does Grover look like
answered
May 14, 2019
Social Studies
middle-school
1
vote
174k
views
Consider the matrix a. a = 4 0 0 1 3 0 −4 5 −1 find the characteristic polynomial for the matrix a. (write your answer in terms of λ.)
answered
Mar 27, 2019
Mathematics
college
4
votes
105k
views
If a leaf appears toothed,what type of leaf edge is it
answered
Feb 26, 2019
Biology
middle-school
2
votes
79.6k
views
How does the amount of vegetation affect the way a sand dune forms
answered
Dec 6, 2018
Biology
high-school
4
votes
103k
views
a slab or ribs at the butcher costs $4.55 per pound how much will it cost if you buy 3.5 pounds of ribs round to the nearest penny
answered
Oct 17, 2018
Mathematics
middle-school
4
votes
124k
views
A recipe calls for 22/4 cups of raisins, but Julie only has a 1/4 cup measuring cup. How many 1/4 cups does Julie need to measure out 22/4 cups of raisins?
answered
Aug 1, 2018
Mathematics
middle-school
4
votes
152k
views
What is the purpose of the plasma membrane?
answered
Sep 20, 2017
Chemistry
middle-school
4
votes
228k
views
Suppose you need to write a sum of numbers as a product of their GCF and another sum.What is the GCF of the numbers in the other sum ? Explain
answered
Sep 17, 2017
Mathematics
middle-school
7
votes
33.9k
views
Mr. Alvarez wants to make a gate that is three feet wide and five feet high. He needs to cut a board to nail across the diagonal of the gate. How long a board does he need?
answered
Jun 14, 2017
Mathematics
high-school
3
votes
134k
views
Which phase of a writing strategy involves deciding on the topic and the purpose of the essay? prewriting drafting revising editing
answered
Apr 15, 2017
English
high-school
0
votes
25.1k
views
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