Straight

Hi Melody,

\( \sqrt{160}=\sqrt{16*10}=\sqrt{16}*\sqrt{10}=4\sqrt{10}\)

\(\sqrt{245}=\sqrt{49*5}=\sqrt{49}*\sqrt{5}=7\sqrt{5}\)

\(\sqrt{252}=\sqrt{36*7}=\sqrt{36}*\sqrt{7}=6\sqrt{7}\)

\(\sqrt{360}=\sqrt{36*10}=\sqrt{36}*\sqrt{10}=6\sqrt{10}\)

Now Guest can do it from here.

Hope that was helpful.^^

Straight

Hello Babbeln,

Insert correct characters to make the P-Q formula.

\(x = -\frac{p}{} \pm \sqrt{\Big(\frac{}{2}\Big)^2-} \)

The right P-Q formula is like that:

\(x = -\frac{p}{2} \pm \sqrt{\Big(\frac{p}{2}\Big)^2-q}\)

What has been missed: 2, p, q.

Hope that was helpful.^^

Straight

Hello Guest,

Write 37/20 as a percent

The fraction 37/20 is equal to 185%.

Hope that was helpful.^^

Straight

Hello Guest,

10001²-9999²

You can solve this by our homepage - click on HOME  - {https://web2.0calc.com/}

This answer shouldn't be answered, but the solution is 40,000.

Hope that was helpful. ^^

Straight

Hello Guest,

Collins Middle School has 248 sixth grade students. If the sixth grade is 40% of the total school, how many students are in the middle school?

248 students in sixth grade - 40%

60% students not in sixth grade - 372 students

60% + 40% = 100 %

248 students + 372 students = 620 students.

So in Collins Middle School there are 620 students in total.

Hope that was helpful. ^^

Straight

Hello Guest,

Determine if the graph of the equation below is a parabola, circle, ellipse, hyperbola, point, line, two lines, or empty. Enter the most specific answer.
x^2 + 2y^2 + 6x + 8y - 121 = 0

It is an elipse. 

Hope that was hepful. ^^

Straight

Hello Melody,

12 1/2 divided by 3 3/4   plez help god bless you 

or I am doing it  :

12 1/2 = 25/2 and 3 3/4 = 15/4,

so we got 25/2 and 15/4.

Now expand 25/2 to 50/4 - it is still the same value like 25/2.

Now divide 50/4 by 15/4 and that is equal to \(3.\overline3\) .

So the answer is \(3.\overline3\) .

Hope that was helpful. ^^

Straight

Hello Guest,

Sovle 16^x - 25*4^x + 24 = 0.

There is only one solution for whole numbers, namely x = 0.

So the solution is x = 0.

Hope that was helpful. ^^

Straight

Hello Guest,

Simplify the expression: ab^2 + 3a^3b - 8ab^2 + 4a^3b^2 + 2a^3b

The answer here : \((ab(4a^2b-7b+5a^2))\) .

Hope that was helpful. ^^

Straight