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vladimir2022 [97]
3 years ago
7

Help me plssssssssssssssssssssssss

Mathematics
1 answer:
natka813 [3]3 years ago
5 0

Answer:

C

Step-by-step explanation:

Minus two equations , we got:

9x-9y= 132-(-12)

9x-9y=144

x-y=16

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Question 8(Multiple Choice Worth 1 points)
Marianna [84]

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4 0
4 years ago
A ladder is leaning against a building and makes 28 degree angle with the ground.
Dominik [7]

To solve this problem you must apply the proccedure shown below:

1- You have that the laddder makes an angle of 28 degrees with the ground and the top of the ladder reaches 35ft.

2- Therefore, you have:

Sin\alpha =\frac{opposite}{hypotenuse}

Where:

opposite=35\\ hypotenuse=length\\ \alpha =28degrees

3-You must substitute values and solve for the lenght, as following:

Sin(28)=\frac{35}{lenght}  \\lenght=\frac{35}{Sin(28)}  \\ lenght=75ft

Therefore, the answer is: 75ft

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4 years ago
Nick spent 2.5 hours to travel a distance of 90 km by car. What is the rate of the car?
Nostrana [21]

Answer:

36km/h

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= 90/2.5

=36km/h

5 0
3 years ago
Which equation is the slope intercept form of this equation?
AnnZ [28]

Answer:

C

Step-by-step explanation:

Y - 4 = -2x + 10 Multiply -2 to the inside the brackets

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7 0
3 years ago
Jessica has a credit line of $8,250 on her credit card. she had a previous balance of $780.54 and made a $455.00 payment. the to
nikitadnepr [17]

Answer:

780.54-455=425.54

Step-by-step explanation:

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7 0
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