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3 years ago

I need help with 16 and 17

Mathematics

2 answers:

vredina [299]3 years ago

4 0

16 is 40 because you just need to add 16 to 14 and to 10 which is equal 40

vlabodo [156]3 years ago

3 0

Number 16 is 24. Perimeter is asking to add so you have to add 10 and 14. You add 10 and 14 because it is asking for AB and BC. It would be 40 if it was asking for AB, BC, and AC. Hope it was helpful.

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3 years ago

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Musya8 [376]

Answer:

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Step-by-step explanation:

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3 years ago

Using your knowledge of exponential and logarithmic functions and properties, what is the intensity of a fire alarm that has a s

Ierofanga [76]

Option B:

$I=1.0\times\ 10^{0} \ \text {watts}/ \text m^2}$

Solution:

Given sound level = 120 decibel

To find the intensity of a fire alarm:

$$\beta=10\log\left(\frac{I}{I_0} \right)$

where $I_0=1\times10^{-12}\ \text {watts}/ \text m^2}$

Step 1: First divide the decibel level by 10.

120 ÷ 10 = 12

Step 2: Use that value in the exponent of the ratio with base 10.

$10^{12}$

Step 3: Use that power of twelve to find the intensity in Watts per square meter.

$$10^{12}=\left(\frac{I}{I_0} \right)$

$$10^{12}=\left(\frac{I}{1\times10^{-12}\ \text {watts}/ \text m^2} \right)$

Now, do the cross multiplication,

$I=10^{12}\times1\times\ 10^{-12} \ \text {watts}/ \text m^2}$

$I=1\times\ 10^{12-12} \ \text {watts}/ \text m^2}$

$I=1\times\ 10^{0} \ \text {watts}/ \text m^2}$

$I=1.0\times\ 10^{0} \ \text {watts}/ \text m^2}$

Option B is the correct answer.

Hence $I=1.0\times\ 10^{0} \ \text {watts}/ \text m^2}$ .

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3 years ago

A paper sheet is cut 28 inches to the nearest inches. Find the maximum and minimum length of the patient possible.

aliina [53]

Answer:

max: 28.5 inches
min: 27.5 inches

Step-by-step explanation:

If the actual dimension were different from 28 inches by more than 1/2 inch, it would be reported as a different dimension. So, the minimum that will be reported as 28 is 27.5. The maximum that will be reported as 28 will be 28.4999999.... ≈ 28.5

The maximum and minimum length of the sheet are 28.5 inches and 27.5 inches, respectively.

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3 years ago

Which type of integers are Natural numbers?

Tema [17]

Answer:

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8 0

2 years ago

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