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3 years ago

Do you think a honda is a good car?

Mathematics

2 answers:

vaieri [72.5K]3 years ago

6 0

I doo!! but bmw is fire too

larisa86 [58]3 years ago

3 0

I think ots a fair car tbh

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Which of the following measures could be used to make triangle? 2,9, 12 4,4,7 3,5,8

Naya [18.7K]

3,5,8. I think.

have a great day :)

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3 years ago

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Help with this math

Zepler [3.9K]

Answer:

4,3

Step-by-step explanation:

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3 years ago

Please answer hurry!

34kurt

By trigonometric functions we find that the measure of angle A is approximately 0.12π radians.

<h3>How to determine the missing angle in a right triangle</h3>

In this question we have a right triangle, of which the length of two sides are known (AB, BC). We can know the measure of angle A by trigonometric functions:

$\tan A = \frac{BC}{AC}$

$\tan A = \frac{2}{5}$

A ≈ 0.12π radians

To learn more on trigonometric functions: brainly.com/question/6904750

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2 years ago

There are 9,485 elementary school students in the surrounding cities. If there are 5 elementary schools and each school has the

kenny6666 [7]

1,897
9485/5=1897
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4 years ago

Read 2 more answers

Taking a test i don’t know anything about please help

PilotLPTM [1.2K]

Answer:

See below for answers and explanations

Step-by-step explanation:

Problem 4:

The line of regression is $\hat y = a+bx$ where:

$a=\overline y-b \overline x$

$b=\frac{r*s_y}{s_x}$

We are given that $\overline y=75$ , $s_y=8$ , $\overline x=280$ , $s_x=30$ , and $r=0.60$ , therefore our slope, $b$ , is:

$b=\frac{r*s_y}{s_x}$

$b=\frac{(0.60)(8)}{30}$

$b=0.16$

Therefore, the slope of the regression line is 0.16, which can be used along with the values of $\overline y$ and $\overline x$ to find the constant $a$ :

$a=\overline y-b \overline x$

$a=75-(0.16)(280)$

$a=30.2$

This means our final regression line is $\hat y = 30.2 + 0.16x$

Problem 5:

The slope, $b=0.16$ , means that for every 1 point earned for a student's pre-exam total, their final exam score will increase by 0.16 points for each point they earned on the pre-exam.

Problem 6:

The y-intercept (or constant), $a=30.2$ , means that if a student's pre-exam total were 0, then they would expect to get a 30.2 on the final exam.

Problem 7:

$R^{2}=(0.60)^{2}=0.36=36\%$

Problem 8:

The fraction of variability (aka. coefficient of determination), $R^2$ , means that a certain proportion (or percentage) of the variance in the response variable can be explained by the explanatory variable. In context, this means that 36% of the variance in final exam scores can be explained by the pre-exam scores.

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3 years ago