4 years ago

Help! P = Perimeter Thanks

1 answer:

6 0

perimeter means to add up all the number around a surface so you are correct the answer is 12 because you are suppose to add up everything around the object so 7+5 which gives you 12

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Find the value of each expression

nikdorinn [45]

Answer: 1. -24

2. -10

3. 8

4. 8

5. -10

6. -75

Step-by-step explanation:

7 0

3 years ago

The answer to this question<br> Is beyond my knowledge can you explain

N76 [4]

Pythagorean Theorem!

$a^{2}$ + $b^{2}$ = $c^{2}$
$8.5^{2}*8.5^{2}= c^{2}$
72.25+72.25= $c^{2}$
144.5= $c^{2}$
$\sqrt{144.5}$
12.02 or just 12

3 0

4 years ago

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Element X decays radioactively with a half life of 13 minutes. If there are 530 grams of Element X, how long, to the nearest ten

Leona [35]

Answer:

$t \approx 50.4\,min$

Step-by-step explanation:

The time constant of the element X is:

$\tau = \frac{13\,min}{\ln 2}$

$\tau = 18.755\,min$

The decay function has the following form:

$\frac{m}{m_{o}} = e^{-\frac{t}{\tau} }$

$t = -\tau \cdot \ln \frac{m}{m_{o}}$

$t = -(13\,min)\cdot \ln \left(\frac{11\,g}{530\,g} \right)$

$t \approx 50.4\,min$

6 0

3 years ago

Factor 3x^3+6x^2+x+2 by grouping

bezimeni [28]

The answer for this question when grouping:

(x+2)(3x^2+1)

7 0

3 years ago

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The price of a television set on sale is $360. This is two thirds of the regular price.find the regular price.

mestny [16]

divide 360 by 2 with an outcome of 180 then multiply by 3
answer is 540

5 0

3 years ago

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