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Vitek1552 [10]
2 years ago
15

How do I find the acute measure between two horizontal lines?

Mathematics
1 answer:
cricket20 [7]2 years ago
4 0

Step-by-step explanation:

st line angle is 180

vertically opposite angles are equal

4y+69+2y+3 = 180

6y + 72 = 180

6y = 108

y = 18°

acute angle = 2*18 + 3 = 39°

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Find the product and simplify. (3c-5) ^2
RSB [31]

Answer:

9c² -30c + 25

Step-by-step explanation:

Perfect square trinomial: (a - b)² = a² - 2ab + b²

(3c - 5)²

(3c)² -2(3c * 5) + 5²

9c² -2(15c) + 5²

9c² -30c + 25

Final answer: 9c² -30c + 25

Hope this helps!

7 0
2 years ago
Read 2 more answers
The density of oxygen is 0.001429 grams per cubic centimeter. How is this number written in
Anika [276]

We have been given that the density of oxygen is 0.001429 grams per cubic centimeter. We are asked to write the given number in scientific notation.

To convert a number into scientific notation, we write the given number as product of two numbers. One factor is a number between 1 and 10, while the 2nd factor is power of 10.  

When a decimal is to the left of given number, then we need to move the decimal to right such that the number gets between 1 and 10. Then, we multiply the number by negative power of 10 that many times, we moved the decimal to right.    

We can see that decimal is to left of our number. To place decimal after 1, we have to multiply 10 to 3 times. To keep the value of number same we will multiply the same negative power (negative 3).

0.001429\times 10^3\times 10^{-3}

(0.001429\times 10^3)\times 10^{-3}

(1.429)\times 10^{-3}

1.429\times 10^{-3}

Therefore, the number 0.001429 will be 1.429\times 10^{-3} in scientific notation.

7 0
3 years ago
Casandra is calculating how much interest she will earn in investments that are eating simple interests. She knows that simple i
Zinaida [17]

Answer:

Principal = $500

Interest = $37.50

Rate = 0.025 = 2.5%

Time = 3 years

Step-by-step explanation:

The formula for simple interest is I = PRT ÷ 100

Casandra's equation = I= 500(0.025)(3)=$37.50

Principal = $500

Interest = $37.50

Rate = 0.025 = 2.5%

Time = 3 years

3 0
3 years ago
Help with this problem please
quester [9]

Answer:

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6 0
3 years ago
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8(6g- 5h+8) I need help.
motikmotik

Answer:

The answer is 48g-40h+64

5 0
3 years ago
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