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inysia [295]
2 years ago
15

Help PLEASE!!! I really need it I really do please anyone

Mathematics
1 answer:
Tanya [424]2 years ago
4 0

Answer:

5. alternate interior angles

7. angle addition postulate

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bearhunter [10]

Answer:

b

Step-by-step explanation:

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3 years ago
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D

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Which expressions are equivalent to the one below? Check all that apply. 21^x/3^x
satela [25.4K]

Answer:

<em>options:  A,C,E </em>are correct.

Step-by-step explanation:

We have to find the expression equivalent to the expression:

\dfrac{21^x}{3^x}

we know that: 21^x=(3\times7)^x\\\\21^x=3^x\times7^x

Hence,

\dfrac{21^x}{3^x}=\dfrac{3^x\times7^x}{3^x}=7^x-----(1)

A)   (\dfrac{21}{3})^x= 7^x  (same as(1))

Hence, option A is correct.

B)  7 ; which is a different expression from (1)

Option B is incorrect.

C) 7^x   (Same as (1))

Option C is correct.

D) (21-3)^x=18^x   which is a different expression from (1)

Hence, option D is incorrect.

E) \dfrac{7^x\times3^x}{3^x}=7^x   ; which is same as (1)

Hence, Option E is correct.

F) 3^x  ; which is not same as expression (1)

Hence, option F is incorrect.

5 0
3 years ago
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Coronavirus cases rose from 23 cases on October 3rd to 103 cases on November 3rd .What was the percent increase based on the ori
nika2105 [10]
23/103 = 0.22

0.22*100 = 22%

The percentage increase is 22%


Hope that helps!
7 0
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What is the value of x? 0.9(x+1.4)−2.3+0.1x=1.6 Help quick
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3 years ago
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