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Doss [256]
3 years ago
6

Which number line correctly shows -3-1.5?​

Mathematics
2 answers:
Papessa [141]3 years ago
7 0
Pretty sure it’s the 3rd
OverLord2011 [107]3 years ago
4 0

Answer:

wrong it's A

Step-by-step explanation:

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What effect does blocking by gender have on the standard deviation of recumbent length for each​ gender?
jek_recluse [69]
The standard deviation is lower for each group than it is for the groups combined.
3 0
2 years ago
Using principle of mathematical induction prove that 6^-1 divisble by 5 .​
salantis [7]

I suppose the claim is 5 \mid 6^n - 1 for n\in\Bbb N.

When n=1, we have 6^1 - 1 = 6 - 1 = 5, and of course 5 divides 5.

Assume the claim holds for n=k, that 5 \mid 6^k - 1. We want to use this to show it holds for n=k+1, that 5 \mid 6^{k+1} - 1.

We have

6^{k+1} - 1 = \left(6^{k+1} - 6\right) + \left(6 - 1) = 6\left(6^k - 1\right) + 5

Since 5 \mid 6^k - 1, we can write 6^k - 1 = 5\ell for some integer \ell. Then

6^{k+1} - 1 = 6\cdot5\ell + 5 = 5(6\ell + 1)

which is clearly divisible by 5. QED

5 0
1 year ago
Anyone know this geometry question?
mr Goodwill [35]
Given:
  ∠JEK + ∠DFH = 90°

Find:
  relationship, if any, of ∠JEK to angles CFL, HFG, LFE

Solution:
  We note that ∠DFG = 90° = ∠DFH + ∠HFG, so ∠JEK ≅∠HFG.
  We also note that ∠HFG and ∠CFL are vertical angles, so ∠JEK ≅∠CFL.
  And ∠LFE and ∠DFH are vertical angles, so ∠JEK + ∠LFE = 90°.

Evaluating the choices, we find
  A) false. The angles are not complementary, they are equal.
  B) false. The angles are not equal, they are complementary.
  C) false. The angles are not supplementary, they are equal.
  D) TRUE. The angles are equal.

The appropriate choice is ...
  D) 
 ∠JEK ≅∠CFL
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3 years ago
What quadrilateral has at least one pair of parallel sides,but cannot be called a parallelogram
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I believe it's a trapezoid
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3 years ago
Read 2 more answers
I need help with this​
Schach [20]
8- 1/3 quarts
4- 2/3 quarts
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2 years ago
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