2 years ago

Drag the tiles to complete the comparison sentence. Tiles can be used once, or not at all. If 6×p=78÷6

Mathematics

1 answer:

MariettaO [177]2 years ago

4 0

Answer:

almost got it give me one sec

Step-by-step explanation:

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F (n)=3+4 (n-1). find f(5) and f(6)

Rasek [7]

3+16=19,

3+20=23

So the correct answer would be 19 and 23

5 0

2 years ago

For question 25 please pick 1,2,3 or 4

Juli2301 [7.4K]

Answer:

$x=\frac{2}{3} \pm \frac{1}{6}i \sqrt{158}$

Step-by-step explanation:

$18x^2-24x+87=0$

Using Quadratic Formula

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$x=\frac{-\left(-24\right)\pm \sqrt{\left(-24\right)^2-4\cdot \:18\cdot \:87}}{2\cdot \:18}$

Solving the discriminant:

$\Delta = \left(-24\right)^2-4\cdot \:18\cdot \:87\\\Delta = 576-6264\\ \Delta=-5688$

$x= \frac{24 \pm \sqrt{-5688} }{36}$

$x= \frac{24 \pm \sqrt{5688i} }{36}$

Once $\sqrt{5688} =\sqrt{2^3\cdot \:3^2\cdot \:79}=6\sqrt{158}$

$x=\frac{24\pm6\sqrt{158}i}{36}$

Dividing the denominator and numerator by 6

$x=\frac{4\pm \sqrt{158}i}{6}$

Now rewrite it:

$x=\frac{4}{6} \pm i\frac{\sqrt{158}}{6}$

$x=\frac{2}{3} \pm i \frac{\sqrt{158}}{6}$

$x=\frac{2}{3} \pm \frac{1}{6}i \sqrt{158}$

5 0

2 years ago

Kevin is 3 years older than Daniel. Two years ago, Kevin was 4 times as old as Daniel. How old is Kevin now?

GuDViN [60]

Let k and d be the Kevin's age and the Daniel's age;
We have the equation:
k = 3 + d;
k - 2 = 4( d - 2 );
We have 3 + d - 2 = 4d - 8;
Then, d + 1 = 4d - 8;
9 = 3d;
d = 3.
Finally, k = 6 years.

6 0

2 years ago

Read 2 more answers

IS THIS CORRECT ?? HELP ASAP THANKS!

OLEGan [10]

Pretty sure it is.......

3 0

2 years ago

How do you find the answer to write 25/5 as a whole number

shusha [124]

You divide 25 by 5, which is 5

8 0

3 years ago