Write a quadratic function that only has one root

Mathematics

1 answer:

AlekseyPX4 years ago

3 0

Answer:

y= x squared.

Step-by-step explanation:

When graphed, the parabola only has an x-intercept at (0,0). Since a root is another word for an x-intercept, it only has one root.

I hope this helps, and I hope you have a good day.

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A car traveling at a certain speed will travel 76 feet per second. How many miles will the car travel in 3.1 hours if it maintai

liubo4ka [24]

Keeping in mind that, there are 5280 feet in 1 mile, and 60 minutes in an hour and 60 seconds in each minute, thus 60*60 seconds in an hour, or 3600 seconds.

$\bf \cfrac{76~\underline{feet}}{\underline{sec}}\cdot \cfrac{mile}{5280~\underline{feet}}\cdot \cfrac{3600~\underline{sec}}{hr}\implies \cfrac{76\cdot 3600~mile}{5280~hr}
\\\\\\
\cfrac{570~mile}{11~hr}\approx 51.\overline{81}\frac{mile}{hr}\\\\
-------------------------------\\\\
\textit{how many miles does it do in 3.1hrs?}\quad \cfrac{570}{11}\cdot 3.1$

6 0

3 years ago

Suppose the time it takes for a purchasing agent to complete an online ordering process is normally distributed with a mean of 8

Luba_88 [7]

Answer: 0.4

Step-by-step explanation:

We know that the standard deviation of the sampling distribution of mean is given by:-

$\sigma_x=\dfrac{\sigma}{\sqrt{n}}$

Given : Standard deviation : $\sigma= 2\text{ minutes}$

Sample size : n= 25

Then, the standard deviation of the sampling distribution of mean times will be :-

$\sigma_x=\dfrac{2}{\sqrt{25}}\\\\\Rightarrow\ \sigma_x=\dfrac{2}{5}=0.4$

Hence, the standard deviation of the sampling distribution of mean times=0.4

7 0

3 years ago

Round to the nearest hundredth

Charra [1.4K]

Hey there,
1st hat = x
2nd hat = 2x
3x = $75.12
x= $75.12 / 3
= $25.04
2x = $25.04 x 2
=$50.08
= $50.10 (round off)

Hope this helps ^_^

~Top

7 0

3 years ago

Use the graph to answer the questions.

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1. The domain of the sequence shown is {1, 2, 3, 4, 5}. This is best matched by the description Natural numbers.

2. The common ratio is 3/1 = 9/3 = 3.

3. The first term of this geometric sequence is 1. The common ratio is 3. So, the explicit formula is f(x) = 1(3)^(x-1)

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4 years ago

Read 2 more answers

A glass top of an office table is in the form of rectangle. The diagonal of the table have length 5x-11 and 2x+25

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Answer:

1) The value of $x$ is 12.