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2 years ago

IS THIS RIGHT???????????????????

Mathematics

2 answers:

soldier1979 [14.2K]2 years ago

6 0

Answer:

No, the correct answer is 20%

Step-by-step explanation:

2 from 10 total failures

2/10 = 0.2

(100)(0.2)=20%

Hope this helps.

Mnenie [13.5K]2 years ago

3 0

Answer:

yes it is correct 10% is the answer

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Please hepl with math

Ivenika [448]

Answer:

$\dfrac{5^{n+2}-6\times 5^{n+1}}{13 \times5^{n}-2\times5^{n+1}} = -\dfrac{5}{3}$

Step-by-step explanation:

We are given the expression to be simplified:

$\dfrac{5^{n+2}-6\times 5^{n+1}}{13 \times5^{n}-2\times5^{n+1}}$

Let us take common a term with a power of 5 from the numerator and the denominator of the given expression.

We know that:

$a^{p+q} = a^p \times a^q$

Let us use it to solve the powers of 5 in the given expression.

$\therefore$ we can write:

$5^{n+2} = 5^{n+1}\times 5= 5^n\times 5^{2}$

$5^{n+1} = 5^n\times 5$

The given expression becomes:

$\dfrac{5^{n+1} \times 5-6\times 5^{n+1}}{13 \times5^{n}-2\times5^{n}\times 5}$

Taking common $5^{n+1}$ from the numerator and

Taking common $5^{n}$ from the denominator

$\Rightarrow \dfrac{5^{n+1} (5-6)} {5^{n}(13-2\times5)}\\\Rightarrow \dfrac{5^{n+1} (-1)} {5^{n}(13-10)}\\\Rightarrow -\dfrac{5^{n+1}} {5^{n}\times3}\\\Rightarrow -\dfrac{5^{n}\times 5} {5^{n}\times3}\\\Rightarrow -\dfrac{5}{3}$

$\therefore$ The answer is:

$\dfrac{5^{n+2}-6\times 5^{n+1}}{13 \times5^{n}-2\times5^{n+1}} = -\dfrac{5}{3}$

6 0

3 years ago

Help me plz thanks u

Natali [406]

◆ Circles ◆

Hey !!

Check the attachment.
Hope it helps you :)

6 0

3 years ago

Please help me Estimate 258+565 I been needing help since yesterday

wariber [46]

It could be 820 thats rounded to the nearest tenth
if its supposedto be rounded to the nearest hundred its 800

3 0

3 years ago

SOMEONE PLEASE HELP I NEED THIS IN LIKE 10 MINUTES THANKS

tino4ka555 [31]

Answer:

what grade

Step-by-step explanation:

to know the rule

3 0

3 years ago

4.9-16=. A:25 B:7 C:-25 D:-7

shtirl [24]

Answer and Step-by-step explanation:

It says your question is : $9-16=?$ And the answer for that would be $-10$ . But that's not there in the options I think your question was supposed to be meant like this : $16-9=?$ cause then it would be $7$ tho it's there in the options, the sign is wrong it's not $-7$ it's $+7$ or just $7$ .

8 0

3 years ago