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Stels [109]
3 years ago
8

When a conditional and its converse are true, you can combine as a true.....

Mathematics
1 answer:
WARRIOR [948]3 years ago
6 0
What is the question?

Conditional is a sentence that has "If..., then..."

Converse is the opposite of the coditional

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Please help me with question 5
Fantom [35]
Use the left and right triangles. (the two smaller ones -- ACD and BCD)
By similar triangles ACD is similar to BCD
on the left AD/CD is one ratio
On the right CD/DB is the other. These two ratios are equal because they are corresponding parts.

AD / CD = CD / DB
AD = 3
DB = 12
CD = ??
Substitute.
3/CD = CD/12 Cross multiply
36 = CD^2
sqrt(36) = sqrt(CD^2)
CD = 6 <<<<==== Answer.
A <<<<====Answer.
 
7 0
3 years ago
Find all complex solutions of 11x^2-5x+2=0. If there is more than one solution separate them with commas.
sergejj [24]

Answer:

No real solutions.

Step-by-step explanation:

Let's solve your equation step-by-step.

11x2−5x+2=0

For this equation: a=11, b=-5, c=2

11x2+−5x+2=0

Step 1: Use quadratic formula with a=11, b=-5, c=2.

x=

−b±√b2−4ac

2a

x=

−(−5)±√(−5)2−4(11)(2)

2(11)

x=

5±√−63

22

6 0
2 years ago
Read 2 more answers
15×2×4<br>helppppppppppppppppp<br>plzzzzzzzzzzzzzzzzzzzz​
olasank [31]

Answer:

120

Step-by-step explanation:

We can break it up and then solve. 15*2 is 30. 30*4 is 120.

3 0
3 years ago
Read 2 more answers
Jeff Bezos, the owner of Amazon, hires you to do research for his company for 3
Alex787 [66]

Answer:

:(

Step-by-step explanation:

figure it out

7 0
3 years ago
The manufacturer of a smart watch claims that individuals who pay attention to how many steps they take per day will inadvertent
drek231 [11]

Answer:

Hello your question is incomplete attached below is the complete question

answer :  1596 ± 2.861 \sqrt{\frac{1580^2 }{20 } +\frac{2350^2 }{20 } } ------  ( A )

Step-by-step explanation:

I will use excel function to resolve this question

<u>Determine the 99% confidence of interval for the difference in mean  number of steps by all people</u>

∝ = 0.01

critical value ( t ) = 2.861  ( = TINV ( 0.01, 19 )

Given that :

S1 = 1580

S2 = 2350

n1 = 20

n2 = 20

Difference in mean = x1 - x2 = 1596

Margin of Error = t * \sqrt{\frac{S^2_{1} }{n_{1} } +\frac{s^2_{2} }{n_{2} } }

∴  99% confidence of interval

= 1596 ± 2.861 \sqrt{\frac{1580^2 }{20 } +\frac{2350^2 }{20 } } ------

8 0
3 years ago
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