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ladessa [460]
3 years ago
6

Will mark brainliest.Please help and explain your answer!

Mathematics
1 answer:
Setler [38]3 years ago
5 0

Answer:

4D -4 is 1 ( d-minus 1 )

Step-by-step explanation:

the distance in feet that Karina swims in a race is represented by 4D - 4 where D is the distance for each lap.

to get equivalent expression we Factor the expression 4 d - 4

factor out for from the expression 4 d - 4 when we Factor at 4 we divide each term by 4.

4d -4

4(d-1)

the equivalent expression for for the -4 is 4 ( d - 1)

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The graph of f(x) = 2x + 1 is shown below. Explain how to find the average rate of change between x = 0 and x = 3.
Irina-Kira [14]
<span><span>The average rate of change formula is basically the slope formula, where you plug in: f(b)-f(a)/b-a. Then plug in the numbers. [f(0)=1,f(3)=7)]. So, 7-1/3-0. 6/3 is 2 so the average rate of change is 2. And that makes sense because the average rate of change is always the slope, and the slope is 2.</span></span>
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3 years ago
Use rounding to estimate 2.57 +0.14
marin [14]
2.57=3
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———
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4 years ago
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How to solve the following quadratic equations; 2L, m, o, 3a and g
s2008m [1.1K]

Answer:

Please see the attached pictures for full solution.

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3 years ago
A taxi charges 2.50 plus .50 fee for each mile. If the ride costs 7.50 how many miles did he travel
NeX [460]

Answer:<em> 10 miles</em>

Step-by-step explanation:

<em>Mile 1: 3.00</em>

<em>Mile 2: 3.50</em>

<em>Mile 3: 4.00</em>

<em>Mile 4: 4.50</em>

<em>Mile 5: 5.00</em>

<em>Mile 6: 5.50</em>

<em>Mile 7: 6.00</em>

<em>Mile 8: 6.50</em>

<em>Mile 9: 7.00</em>

<em>Mile 10: 7.50</em>

7 0
3 years ago
What are the x and y-intercepts of the line described by the equation?<br> -6x + 3y = 18.9
-BARSIC- [3]

Answer:

x-intercept - x = 1/2y - 3.15

y-intercept - y = 2x + 6.3

Step-by-step explanation:

For x,

-6x + 3y = 18.9

-6x = -3y + 18.9

x = -3y/-6 + 18.9/-6

x = 1/2y - 3.15

For y,

-6x + 3y = 18.9

3y = 6x + 18.9

y = 6x/3 + 18.9/3

y = 2x + 6.3

8 0
3 years ago
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