2 years ago

3k^2+12k-7kn-28n square meters and a length of 3k-7n meters.

Mathematics

1 answer:

melomori [17]2 years ago

4 0

Step-by-step explanation:

here ! I used the formula area = length × width

and just some algrbric expressions solving

You might be interested in

If 30% = $1050, how much does 100% equal

Alik [6]

1050 × 100 ÷ 30 would be what you plug into a calculator (if you have one) to get the answer.
100% = 3500.

4 0

3 years ago

Read 2 more answers

A 75.0 W bulb is connected to a

FromTheMoon [43]

Answer:

161

Step-by-step explanation: 110^2/75

8 0

3 years ago

If x^2=20 what is the value of x will give brainliest for answer

Schach [20]

Answer:

x² - 20 = 0

Using the quadratic formula

$x = \frac{ - b± \sqrt{( {b})^{2} - 4ac } }{2a}$

a = 1 b = 0 c = -20

So we have

$x = \frac{ - 0 ± \sqrt{ {0}^{2} - 4(1)( -20)} }{2(1)} \\ \\ x = \frac{± \sqrt{80} }{2} \\ \\ x = \frac{±4 \sqrt{5} }{2} \\ \\ \\ x = ±2 \sqrt{5} \\ \\ \\ x = 2 \sqrt{5} \: \: \: or \: \: \: x = - 2 \sqrt{5}$

Hope this helps you.

8 0

2 years ago

A juggler is performing her act using several balls. She throws the balls up at an initial height of 4 feet, with a speed of 15

Vikki [24]

I think the answer is 1.15 seconds. Thats just a guess..... So yeah sorry if wrong!! BYYYYYYYYEEEE :Letter b I think IDKKK

6 0

3 years ago

Read 2 more answers

If the coefficient of determination for a data set containing 24 points is 0.5,

aleksandrvk [35]

Answer:

False

Step-by-step explanation:

False - one has nothing to do with the other. None of the data points can lie on the regression line,

and you can have the coeff. of determination be 0.5.

7 0

3 years ago