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iragen [17]
3 years ago
13

Given: Two distinct circles that are tangent to each other at a common point. How many tangent lines can be drawn that touch bot

h circles?

Mathematics
1 answer:
Zanzabum3 years ago
8 0
As shown in the model below, there are three lines.

You might be interested in
Please help me on this question. I forgot how to do it​
NeTakaya

Answer:

141

Step-by-step explanation:

Area of triangle = 24

Area of Trapezoid= 117

117+24

141

5 0
3 years ago
Select all statements below which are true for all invertible n×n matrices A and B
nirvana33 [79]
The statements that are rue for <span>all invertible n×n matrices A and B are:
</span><span>(A+B)(A−B)=A^2−B^2
</span>and 
<span>(ABA^−1)^4=AB^4A^−1 
</span>From the above results we can conclude that the correct options among all the options that are given in the question are option "B" and option "E". I hope the answer helps you.
7 0
3 years ago
A student has a 2% salt water solution and a 7% salt water solution. To best imitate salt water at a local beach, he needs 1 lit
FromTheMoon [43]

Let

x-------> the amount of 2\% solution

y--------> the amount of 7\% solution

we know that

2\%=0.02\\7\%=0.07\\3.5\%=0.035

so

x+y=1

y=1-x -------> equation A

0.02x+0.07y=0.035 -------> equation B

substitute equation A in equation B

0.02x+0.07(1-x)=0.035

0.02x+0.07-0.07x=0.035

0.05x=0.035

x=0.7\ liters

find the value of y

y=1-x

y=1-0.7=0.3\ liters

therefore

The student need 0.7\ liters of 2\% solution and 0.3\ liters of 7\% solution

<u>the answer is</u>

A) The percent values were written incorrectly in the equation

B) The amount of 7% solution should be written as 1 – x, not x – 1.

8 0
3 years ago
Read 2 more answers
4 + {−5 + [−3 + 4 + 2(−7 + 4) + 4] + 2}
scoray [572]

Answer

it is 5 : )

Step-by-step explanation:

8 0
2 years ago
What is 20/45 simplified ?
Kipish [7]
It's quite simple when you break it down

20/45 let's divide by 5 

4/9 

we can't divide anymore, no common denominator. The answer is 4/9
5 0
3 years ago
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