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stich3 [128]
3 years ago
8

Someone plz help answering this (mastery test)15points if u don’t know don’t answer

Mathematics
1 answer:
mezya [45]3 years ago
7 0

Answer:

6^5

Step-by-step explanation:

when multiplying exponents you add them and 3 times 6 is 18

I think this is how you do it but I don't remember

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3 years ago
Where do the graphs Of linear equations 2x+3y=4 and 5x+6y=7 intersect
UNO [17]
5x + 6y = 7                         SUBSTITUTION METHOD
2x + 2y = 4 


         5x + 6y = 7                      Solve for either x or y in 1 of the 2 equations.
               - 6y - 6y
     -----------------------
         5x = -6y + 7 
        -----  ------  ----
          5       5      5

          x = -6/5y + 7/5



2(-6/5y + 7/5) + 2y = 4             Substitute the expression you got for x or y into 
-12/5y + 14/5 + 2y = 4              the other equation.
-2/5y + 14/5 = 4 
          - 14/5  - 14/5 
------------------------------
-2/5y = 6/5 
--------  --------
- 2/5y  - 2/5y

y = -3 



5x + 6(-3) = 7                             Plug in the value you got for y in step 2 into the 
5x - 18 = 7                                  equation that you didn't use.
    + 18 + 18
------------------
5x = 25 
---    -----
5       5

x = 5 


(x,y) ⇒ coordinate
(5,-3) ⇒ final answer

4 0
3 years ago
Given the figures are similar, calculate the perimeter of the ABCDE.
Zepler [3.9K]

Answer:

The perimeter of ABCDE is 38 inch.

Step-by-step explanation:

From the given figure it is notices that

AE=BC=12\text{ in}

ED=CD=4\text{ in}

It is given that both figure are similar. The corresponding sides of similar figures are proportional.

Since the figures ABCDE and HIJFG are similar,therefore the corresponding sides of both figures are proportional.

In figures ABCDE and HIJFG,

\frac{AB}{HI}=\frac{AE}{JI}

\frac{AB}{2}=\frac{12}{4}

AB=3\times 2

AB=6

The perimeter of ABCDE is

AB+BC+CD+DE+AE=6+12+4+4+12=38

Therefore the perimeter of ABCDE is 38 inch.

6 0
3 years ago
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