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3 years ago

Solve 3n^2+17n+10=0

1 answer:

5 0

To solve this, use the commonly known quadratic formula.

-b +/- sqrt ( b^2 - 4ac )
-------------------------------
2a

So plug in the numbers, and you should get

(a=3 b=17 c=10)

a.) -2/3 or -5

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Write the equation of the circle. A with a center A(-4,-3) and radius 5

tiny-mole [99]

Answer:

(x+4)^2 + (y+3)^2 = 5^2

Step-by-step explanation:

The equation of a circle is

(x-h)^2 + (y-k)^2 = r^2

now substitute the known values

(x+4)^2 + (y+3)^2 = 5^2

and theres your equation

4 0

4 years ago

The coefficient of determination resulting from a particular regression analysis was 0.85. what was the correlation coefficient,

Yanka [14]

solution:

coefficient of determination = R^2 = .85 correlation coefficient, R = 0.92

8 0

3 years ago

Convert each angle measure to Radion measure 45°

vesna_86 [32]

Answer:

$\frac{\pi }{4}$

Step-by-step explanation:

To convert from degrees to radians

radian measure = degree measure × $\frac{\pi }{180}$

given degree measure = 45°, then

radian = 45 × $\frac{\pi }{180}$ ( divide 45 and 180 by 45 )

= $\frac{\pi }{4}$

8 0

3 years ago

Read 2 more answers

Indiana is 435 kilometers long. Assume an average person's steps measure 2.5 feet per step.

andrew11 [14]

Total steps will be: 570866

Step-by-step explanation:

Given

Length of Indiana = 435 km

Length of one step = 2.5 feet

We have to convert both the quantities in same unit to do the calculations

As the steps are measured in feet, so we have to convert kilometers into feet

So,

There are approximately 3280.84 feet in one kilometer.

So,

The length of Indiana in feet will be= $435*3280.84\\=1,427,165.4\ feet$

To find the number of steps, we have to divide the total length by length of one step

So,

$Total\ steps = \frac{1427165.4}{2.5}\\=570866.16\ steps$

Rounding off to nearest whole number

Total steps will be: 570866

Keywords: Conversion, measurement

Learn more about conversion at:

LearnwithBrainly

8 0

3 years ago

Is the relation a function, and what is the range?<br> Please help.

nadya68 [22]

Answer:

the last option or D

Step-by-step explanation:

Not a function because x-values repeat and to find the range you grab all the y-values. If y-value repeats the same number then you would take one of the numbers. Don't add it or anything, just count it as one number.

6 0

3 years ago