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earnstyle [38]
3 years ago
7

Can someone explain this to me? ​

Mathematics
1 answer:
Luda [366]3 years ago
5 0

Answer:

Its the first answer choice, basically just plug 3a +1 for a and solve

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What si the meaning of 3:4
garik1379 [7]

Answer:

3:4 is a ratio

Step-by-step explanation:

so every 3 cats their are 4 dogs ect

3 0
4 years ago
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A function is a mathematical rule that.....
Elodia [21]

Answer:

B

Step-by-step explanation:

A function can be graphed as a straight line, as long as it isn't vertical.

5 0
3 years ago
Evaluate u + xy , for u = 2, x = 9, and y = 6.
Makovka662 [10]

Answer:

56

Step-by-step explanation:

After inserting the given values, u + xy becomes (2) + (9)(6), or 2 + 54, or 56.

3 0
3 years ago
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In August 200920092009, Usain Bolt ran 100100100 meters in 9.589.589, point, 58 seconds (\text{sec})(sec)left parenthesis, start
Sveta_85 [38]

Answer:

<u>Usain Bolt's average speed in yards per second was 11.4</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

World record of Usain Bolt = 9.589 seconds

Distance of the world record = 100 meters

1 yard = 0.9144 meters ⇒ 100 meters = 109.36 yards

2. What was Usain Bolt's average speed in yards per second?

Let's recall that the formula of speed is:

Speed = Distance/Time

Replacing with the values we know:

Usain Bolt's Speed = 109.36/9.589

<u>Usain Bolt's Speed = 11.4 yards per second (Rounding to one decimal place)</u>

6 0
3 years ago
Write a slope intercept equation for a line that passes through (-2,5) and (2,-7)
wlad13 [49]

Slope-intercept form: y = mx + b, where m is the slope and b is the y-intercept.

First, find slope using the given coordinates. Formula for slope: y₁ - y₂ / x₁ - x₂.

Our coordinates are (-2, 5) and (2, -7). Plug them in and simplify.

5 - (-7) / -2 - 2

5 + 7 / -4

12/-4

-3

The slope is -3. The equation becomes y = -3x + b.

To find b, plug an (x, y) coordinate on the line in for x and y in the equation and solve. I'll use (-2, 5)

y = -3x + b

5 = -3(-2) + b

5 = 6 + b

-1 = b

The y-intercept is (0, -1). The equation can now be completed!

<h3>Answer:</h3>

y = -3x - 1

7 0
3 years ago
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