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3 years ago

Help me guys please

Mathematics

1 answer:

Elan Coil [88]3 years ago

7 0

Answer: I think it's 12

Step-by-step explanation:

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I need help please and thank you

nignag [31]

Answer:

B. A square is a rectangle.

5 0

3 years ago

One of the main contaminants of a nuclear accident, such as that at Chernobyl, is strontium-90, which decays exponentially at a

igor_vitrenko [27]

Answer: $P=0.975^t$

Step-by-step explanation:

We know that the general form of the exponential decay formula is

$y=A(1-r)^t$ , where y is final amount remaining after t time, A is the original amount and r is the rate of decay

Now, the ratio of strontium-90 remaining, p , as a function of years, t , since the nuclear accident. $P=\frac{A(1-0.02)^t}{A}=\frac{(0.975)^t}{1}$

Hence, the ratio of remaining since the nuclear accident is $P=0.975^t$

3 0

3 years ago

Read 2 more answers

The U.S. Mint produces quarters that weigh about 5.67 grams each. After the

lesantik [10]

The U.S. Mint makes commercial circulation coins including commemorative collection's coins including investor bullion coins.
In the case of circular coins, the quantities were measured in terms of figures for "production" numismatic categories in order "sales" and bullion "mintage" statistics.

$\to \bold{|x-5.67|=0.02}\\\\$

heaviest $\bold{=5.69\ g\\\\}$

lighest $\bold{=5.65\ g\\\\}$

Evaluating the each expression:

$\to \bold{q = -8}\\\\ \to \bold{r = -6}\\\\ \to \bold{t=3}$

Learn more:

brainly.com/question/20845315

8 0

3 years ago

Give an example of this when adding two rationalnumbers with different signs and provide the product.

kolezko [41]

ANSWER:

$\begin{gathered} \frac{4}{5}+-\frac{8}{3}=-\frac{28}{15} \\ \frac{4}{5}\cdot-\frac{8}{3}=-\frac{32}{15} \end{gathered}$

STEP-BY-STEP EXPLANATION:

Rational numbers are all numbers that can be expressed as a fraction, that is, as the quotient of two whole numbers.

Therefore, an example would be:

$\begin{gathered} \frac{4}{5}\text{ and - }\frac{8}{3} \\ \text{adding} \\ \frac{4}{5}+-\frac{8}{3}=\frac{4}{5}-\frac{8}{3} \\ \frac{4}{5}-\frac{8}{3}=\frac{4\cdot3-5\cdot8}{5\cdot3}=\frac{12-40}{15}=-\frac{28}{15} \\ \text{ product} \\ \frac{4}{5}\cdot-\frac{8}{3}=-\frac{4\cdot8}{5\cdot3}=-\frac{32}{15} \end{gathered}$

5 0

1 year ago

A dump truck pours sand into a container in the shape of a rectangular prism with a square base of length 2 feet. The height, h,

aev [14]

Answer:

I think the answer is 24 minutes!

Step-by-step explanation:

I hope this helps!

5 0

3 years ago

Read 2 more answers

Help me guys please ​

Help me guys please