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3 years ago

PLEASE HELP QUICKLY 20 POINTS!!!

Mathematics

2 answers:

Luden [163]3 years ago

8 0

2 - 6 ( -5t + 1 )

Distribute the 6 to the numbers inside the parenthesis (PEMDAS)

2 - 6*- 5t - 6*1

= 2 + 30t - 6

= 30t - 4

Option C is correct.

sergeinik [125]3 years ago

6 0

2 - 6 ( -5t + 1 )

Apply distributive property first:

2 - 6*-5t -6*1

Simplify:

2+30t -6

Combine like terms:

30t - 4

The answer is C.

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I need help with this geometry question

UNO [17]

Answer:

radius ≈ 15.5

Step-by-step explanation:

the radius is RS

the angle between a tangent and the radius at the point of contact is 90°

then Δ RST is a right triangle

using Pythagoras' identity in the right triangle.

the square on the hypotenuse is equal to the sum of the squares on the other 2 sides , then

RS² + ST² = RT² ( substitute values )

RS² + 7² = 17²

RS² + 49 = 289 ( subtract 49 from both sides )

RS² = 240 ( take square root of both sides )

RS = $\sqrt{240}$ ≈ 15.5 ( to 1 dec. place )

6 0

1 year ago

According to the histogram of travel times to work from the US 2000 census (Page 6 of "Journey to Work: 2000"), roughly what per

erastovalidia [21]

Histograms are used to represent data, where the length of each bar represents the frequency of the data element

The histogram is not given; So, I will give a general explanation.

Assume that the number of commuters that travel more than 45 minutes is 450, while the total number of commuters surveyed is 500.

The percentage of commuters that travel more than 45 minutes is the quotient of the commuters that travel more than 45 minutes and the total number of surveyed commuters.

So, we have:

$\%Percentage = \frac{450}{500}$

Divide 450 by 500

$\%Percentage = 0.9$

Express as percentage

$\%Percentage = 90\%$

Hence, the percentage of commuters that travel more than 45 minutes is 90%