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Luden [163]
2 years ago
10

Jada and Tonya ran 400-meter race. Jada ran the race in 75.2 seconds. Tonga ran the race 69.07 seconds. How much faster did Tony

a run the race
Mathematics
1 answer:
Ksenya-84 [330]2 years ago
8 0
Tonya beat Jada by 5.13 seconds
Jada is going 11.9 MPH
Tonya is going 13 MPH
Tonya is going 1.1 MPH faster than Jada

Please thank and follow me
:) :) :)
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The position of an open-water swimmer is shown in the graph. The shortest route to the shoreline is one that is perpendicular to
Elenna [48]

Answer:

y = -\frac{4}{3}x + 9

Step-by-sep explanation:

To create an equation that represents the shortest oath of the swimmer that is perpendicular to the shoreline, we need to find the slope, m, and the y-intercept, b.

The slope of the path would be the negative reciprocal of the slope of the shoreline, since they are perpendicular.

Let's find the slope of the shoreline.

Using two points on the shoreline, (0, 1) and (4, 4),

Slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{4 - 1}{4 - 0} = \frac{3}{4}

Therefore the slope, m, of the swimmer's path that is perpendicular to the shoreline would be -⁴/3.

Use the point of the swimmer and the slope of the path to find b.

Substitute m = -⁴/3, (x, y) = (6, 1) in y = mx + b

1 = (-\frac{4}{3})(6) + b

1 = -8 + b

Add 8 to both sides

1 + 8 = b

9 = b

b = 9

Now that we know the slope, m = -⁴/3, and the y-intercept, b = 9, plug in their values into y = mx + b.

The equation of the path would be:

y = -\frac{4}{3}x + 9

5 0
2 years ago
These tables of values represent continuous functions. For which function will the y-values be the greatest for very large value
dezoksy [38]

It's C.

The value is increasing threefold relative to the previous step.

all other function values increase by a fixed amount and are therefore linear

7 0
1 year ago
Translate to an algebraic expression n−1 increased by 110%
Anon25 [30]

Answer:

Part 1) The algebraic expression is equal to 1.10(n-1)  or 1.10n-1.10

Part 2) The algebraic expression is equal to \frac{1.10}{n}

Step-by-step explanation:

Part 1) Algebraic expression of (n-1) increased by 110%

we know that

110%=110/100=1.10

so

The algebraic expression of (n-1) increased by 110% is equal to multiply 1.10 by (n-1)

1.10(n-1)

Distributed

1.10n-1.10

Part 2) Algebraic expression of n^(-1) increased by 110%

we know that

110%=110/100=1.10

so

The algebraic expression of n^(-1) increased by 110% is equal to multiply 1.10 by n^(-1)

Remember that

n^{-1}=\frac{1}{n}

so

1.10(n^{-1})=1.10\frac{1}{n}=\frac{1.10}{n}

6 0
2 years ago
Write a power that has a value greater than 340 and less 345
valina [46]

For this case we must write a power between (340,345)

We chose 343.

We divide the number until we get an exact division:

\frac {343} {2} = 171.5\\\frac {343} {3} = 114.3\\\frac {343} {4} = 85.75\\\frac {343} {5} = 68.6\\\frac {343} {6} = 57.17\\\frac {343} {7} = 49\\

So we have:

7 ^ n = 343\\n = 3

So, the power is:

7 ^ 3 = 7 * 7 * 7 = 49 * 3 = 343

ANswer:

7 ^ 3 = 7 * 7 * 7 = 49 * 3 = 343

6 0
2 years ago
Read 2 more answers
If staff salaries were $32,000/month last year and $47,000/month this year, what is the percentage labor cost increase? (Round t
NeX [460]
100(47000-32000)/32000=47%  (to nearest percent)
6 0
2 years ago
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