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3 years ago

If I had 15 acres and I got $237,000 for it, how much is each acre?

Mathematics

2 answers:

SVETLANKA909090 [29]3 years ago

6 0

Divide 237,000 by the number of acres, 15
To get x the price per Acre :)

serg [7]3 years ago

4 0

For the price per acre do 237,000 / 15 = $15800 per acre

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Jack shells 315 peanuts in 15 minutes

katen-ka-za [31]

315 peanuts/ 15 min= 21 peanuts/min.

Jack sells 21 peanuts in 1 minute.

Hope this helps~

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3 years ago

What are the exact solutions of x2 − 5x − 1 = 0 using x equals negative b plus or minus the square root of the quantity b square

geniusboy [140]

Answer:

$x=2.5+\frac{\sqrt{29}}{2}\\\\x=2.5-\frac{\sqrt{29}}{2}$

Step-by-step explanation:

So the question here is asking you to use the quadratic formula which is expressed as: $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\$

A quadratic can generally be expressed as: $y=ax^2+bx+c$

So using the equation you gave: $0=x^2-5x-1$

We can identify the following values: a=1, b=-5, c=-1

Btw the equation explicitly write "1" as the coefficient of x, but since it's not provided it's implied that it's 1.

So plugging in the known values, we get the following equation:

$x=\frac{5\pm\sqrt{(-5)^2-4(1)(-1)}}{2(1)}\\\\x=\frac{5\pm\sqrt{25+4}}{2}\\\\x=\frac{5\pm\sqrt{29}}{2}\\\\x=2.5+\frac{\sqrt{29}}{2}\\\\x=2.5-\frac{\sqrt{29}}{2}$

The last step just consists of taking the + and - solution, and since it asks for exact solutions you leave the 29 under the radical, and you don't approximate. There is no further simplification that can be done here.

5 0

1 year ago

Round to the nearest thousandth 0.416

Liula [17]

Here is the value of each decimal digit value

.4⇒ tenths place

.01⇒hundredths place

.006,thousandths place

So .416 is .416 rounded since there is nothing to round to

In other words, its already rounded to the nearest thousandths
Its kinda a trick question to make sure you know your place values

3 0

3 years ago

What is the surface area of this rectangular prism?

stira [4]

i think the answer is A.

8 0

2 years ago

Read 2 more answers

A, b and c are the sides of a right triangle, where side a is across from angle a, side b is across from angle b, and side c is

Vera_Pavlovna [14]

<span>Find missing length :
</span>
a² + b² = c²
c² = 19² + 34²
c² = 1517
c = √1517
c = 38.95 units.

Find missing angle A:

$\dfrac{a}{\sin(a)} = \dfrac{c}{\sin(c)}$

$\dfrac{19}{\sin(a)} = \dfrac{38.95}{\sin(90)}$

$\sin(a) = 0.488$

$a = sin^{-1} (0.488)$

$a = 29.2 \textdegree$

Find Missing B:

$\dfrac{b}{\sin(b)} = \dfrac{c}{\sin(c)}$

$\dfrac{34}{\sin(b)} = \dfrac{38.95}{\sin(90)}$

$\sin(b) = 0.873$

$b = sin^{-1}(0.873)$

$b = 60.8 \textdegree$

Answer: Missing length = 38.95 units ; Missing angles = 29.2° and 60.8°

8 0

3 years ago

If I had 15 acres and I got $237,000 for it, how much is each acre? ​

If I had 15 acres and I got $237,000 for it, how much is each acre?