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Aneli [31]
2 years ago
12

Which of the following coordinate points have a y-value of 1? Select all that apply.

Mathematics
2 answers:
Nimfa-mama [501]2 years ago
8 0

Answer:

B is the right answer,...B) (6, 1)

Step-by-step explanation:

no steps just a pencil,paper,caculator,white board, and dry erase marker to help u solve this

kirill [66]2 years ago
8 0

Answer:

6,1 and 1,4

Step-by-step explanation:

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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}.

5 0
3 years ago
Variable y varies directly with variable x, and y = 45 when x = 9.
Alenkasestr [34]
Direct variation means their ratio is a constant
x/y is 9/45=1/5
so when x=2, y=5*2=10
4 0
3 years ago
I need help with the problem below Pls dont spam random letters :)<br><br> 2 1/7 :(1.5a)= 5/14 :0.8
snow_lady [41]

Answer:

Step-by-step explanation:

56 1/2 because i did the math

7 0
2 years ago
Not sure how to do these. i need help with 13! needing it to be reduced just like y should be 8
Delicious77 [7]

Answer:

I'm not sure 710

Step-by-step explanation:

I'm not sure

8 0
2 years ago
Read 2 more answers
The quotient of a number and 5 increased by 8 is equal to 14
jolli1 [7]
30 because
30/5=6
6+8=14
5 0
3 years ago
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