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lisabon 2012 [21]
2 years ago
8

How do I do this I'm so confused​

Mathematics
1 answer:
suter [353]2 years ago
3 0

Answer:

Pretty sure that x would be positive 37.

Step-by-step explanation:

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If b is the midpoint of ac, ac=cd, ab=3x+4, ac=11x-17, and ce=49, find de
IrinaK [193]

First, we draw our line.

 

|------------------------------------------------------------------------------------|

a                                                                                                            e

 

 

Next, break up this line into segments using the information.

 

|----------------------|----------------------|--------------------|------------------|

a                            b                            c                         d                      e

 

 

The entire line is 29.

 

ab + bc + cd + de = ae

ab + bc + cd + de = 29

 

You also know that

 

bd = bc + cd

 

 

Due to midpoint theorem,

 

ab = bc

cd = de

 

 

Then,

 

2ab + 2cd = 29

 

 

The equations we will use are

 

bd = bc + cd                       eq1

2bc + 2cd = 29                   eq2

 

 

Dividing both sides of the equation in eq2 yields

 

bc + cd = 14.5

 

bd = bc + cd

bd = 14.5

5 0
4 years ago
Read 2 more answers
Which function represents a horizontal shift of f(x)=5^x by 4 units to the right?
Thepotemich [5.8K]
If you have a function y = f(x), the transformation along the x-axis is given by:

y = f(x+a) ⇒ This is the translation to the LEFT by 'a' units
y = f(x-a) ⇒ This is the translation to the RIGHT by 'a' units

So you have, f(x) = 5ˣ, translated 4 unit right will give g(x) = 5⁽ˣ⁻⁴⁾

8 0
4 years ago
Read 2 more answers
Jane's basic insurance cost is $559.90 per year. Her insurance company offers a typical "safe-driver discount." What would be he
Travka [436]

559.90 - (559.9 \times 0.10) = 503.91

7 0
4 years ago
If the mean of 6 10 12 x 16 18 is 15 find the value of x​
Mumz [18]

Answer:

x=28

Step-by-step explanation:

I am assuming the mean is arithmetic mean. So we first add up the numbers:

6+10+12+18+16+x

=22+10+30+x

=22+40+x

=62+x

Then since there's 6 numbers in total, we have an equation:

\frac{62+x}{6}=15\\62+x=90\\x=28

The answer is 28!

Have a nice day! :)

7 0
3 years ago
A dslr camera increased in price from 900<br> to 1,200 what was the percent of increase
stiv31 [10]

Answer:

33.33%

Step-by-step explanation:

% increase : new value - old value/old value * 100%

                   1200 - 900/900 * 100% (to make it easier, cut the zeros the best                  

                   you can)

                   300/ 9

                   = 33.33 or 33 1/3%

5 0
3 years ago
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