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charle [14.2K]
3 years ago
10

A radar gun was used to record the speed of a runner (in meters per second) during selected times in the first 2 seconds of a ra

ce. Use a trapezoidal sum with 4 intervals to estimate the distance the runner covered during those 2 seconds. Give a 2 decimal place answer and include units. (10 points) t 0 0.5 1.2 1.5 2 v(t) 0 4.5 7.8 8.3 9.0

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
6 0

Answer:

Step-by-step explanation:

See image

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Select the correct graph of the equation.
tatyana61 [14]

Answer:

A

Step-by-step explanation:

The -2 indicates that y would be -2; because A is the only option with that being true, we can eliminate all other potential options rather quickly.

I believe this is 3/5x-2 but please take pictures with all information in view so we can provide better answers!

5 0
2 years ago
A website-hosting service charges businesses a
Vika [28.1K]

The value of the dollar in the website-hosting service is $55.

According to the statement

we have given that the some information and we have to find that the value of the dollars.

So, For this purpose, we know that the

From the given information:

We have been given that a website-hosting service charges businesses a onetime setup fee of $350 plus d dollars for each month. A business owner paid $1,010 for the first 12 months, including the setup fee.  

Here we can use the linear equation.

So, We can use our given information to form an equation as:      

12d+350 = 1010

Now let us solve for d.  

so, the equation become

12d = 1010-350

12d = 660

d = 55.

So, The value of the dollar in the website-hosting service is $55.

Learn more about linear equation here

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7 0
1 year ago
X-23 / x^2 -x- 20 - 2/5-x
alexira [117]

By simplifying \[x - \frac{{23}}{{{x^2}}} - x - 20 - \frac{2}{5} - x\] . This will result in a simplified version of  \[ - \frac{{5{x^3} + 102{x^2} + 115}}{{5{x^2}}}\].

The Simplifying Algorithm is a wonderful way to simplify complex mathematics problems. It can be used to solve equations, convert fractions to decimals, and perform many other math operations. In this problem, the Simplifying Algorithm will help you reduce \[x - \frac{{23}}{{{x^2}}} - x - 20 - \frac{2}{5} - x\]

Since two opposites add up to 0, remove them from the expression.

\[ - \frac{{23}}{{{x^2}}} - \frac{{102}}{5} - x\]

Write all numerators above the least common denominator 5x2

\[ - \frac{{115 + 102{x^2} + 5{x^3}}}{{5{x^2}}}\]

Use the commutative property to reorder the terms so that constants on the left

\[\frac{{ - 5{x^3} - 115 - 102{x^2}}}{{5{x^2}}}\]

Rearrange the terms

\[\frac{{ - 5{x^3} - 102{x^2} - 115}}{{5{x^2}}}\]

By reording the terms

\[ - \frac{{5{x^3} + 102{x^2} + 115}}{{5{x^2}}}\]

Hence, by simplifying this equation, divide both numerator and denominator. This will result in a simplified version of  \[ - \frac{{5{x^3} + 102{x^2} + 115}}{{5{x^2}}}\].

To learn more about simplifyication visit:

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7 0
1 year ago
When working with inequalities what do you do when its x squared > 16 and vice versa does the sign flip.
S_A_V [24]

Answer:

x4

\{x\in \mathbb{R}|  \:\left(-\infty \:,\:-4\right)\cup \left(4,\:\infty \:\right)    \}

Step-by-step explanation:

x^2>16

x\sqrt{16}

x4

The interval notation will be:

\{x\in \mathbb{R}|  \:\left(-\infty \:,\:-4\right)\cup \left(4,\:\infty \:\right)    \}

The contrary,

x^2

is -4

6 0
3 years ago
Read 2 more answers
What is 475% of 9.2?
coldgirl [10]
To find this, multiply 9.2 by the decimal form of the percent (4.75). The answer is 43.7
7 0
3 years ago
Read 2 more answers
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