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german
3 years ago
13

What would be the answer for this one?

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
7 0

Hi,

Using Thalès, x/14=9/12

==>x=9*14/12

==>x=21/2

==>x=10.5

Answer D

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Linear equations 3(x+1)=3x+3
vaieri [72.5K]
4x + 2 - 3x + 5 - 2(x + 5) = (2x - 5) + (3x + 4) 
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        - x             - 3           =       5x       - 1   
-x - 3 = 5x - 1 is the line above recopied 
+x     = +x       
    -3   = 6x - 1 
<span>    +1   =    + 1 </span>
    - 2   = 6x 
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3 0
3 years ago
What does n equal to in 12n + 9 = 6 - 3n
sveticcg [70]
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6 0
3 years ago
Juanita says that 3.5[4d - (2) (1.5)] and 2[7d - (5)(1.05)] are equivalent. Is Juanita correct? Explain your reasoning.
valkas [14]

Answer:

Yes

Step-by-step explanation:

3.5 [4d - 2*1.5] = 3.5*4d - 3.5*2*1.5

                        = 14d - 10.5

2*[7d - 5*1.05] = 2*7d - 2*5*1.05

                       = 14d -  10.5

When we are simplifying both the expression using distributive property, we get the same expression at the end.

8 0
3 years ago
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elixir [45]

Answer:

0.8686    or  86.86 %

0.2148     or 21.48  %

Step-by-step explanation:

In z table the value of z > - 1,12  is   0.1314 (value from the z point to the left of the curve ) then 1 - 01314 will be value from z point to the right

Again from z table we get for z = - 0.79 the value  0.2148 s the vale from the point up to the left tail

6 0
3 years ago
Which expression is equivalent to -8 - (-12)<br> 8 - 12 <br> -8 + 12<br> -8 - 12<br> -8 (8+12)
aleksley [76]

I need help with this too it’s confusing and I don’t understand it.

8 0
3 years ago
Read 2 more answers
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