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2 years ago

David goes to college by bus.

Mathematics

1 answer:

oee [108]2 years ago

8 0

Answer:

The answer is 30 times a year

Step-by-step explanation:

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Please help, this will just take a minute of your time ❤︎ (literally)<br>(Discriminant Worksheet)

igomit [66]

Answer:

$\large\boxed{x=-\dfrac{7-\sqrt{97}}{4}\ \vee\ x=-\dfrac{7+\sqrt{97}}{4}}$

Step-by-step explanation:

$ax^2+bx+c=0\\\\\Delta=b^2-4ac\\\\\text{if}\ \Delta0,\ \text{then an equation has two solutions:}\ x=\dfrac{-b\pm\sqrt\Delta}{2a}\\\\\text{We have:}\\\\-2x^2-7x+10=4\qquad\text{subtract 4 from both sides}\\\\-2x^2-7x+6=0$

$a=-2,\ b=-7,\ c=6\\\\\Delta=(-7)^2-4(-2)(6)=49+48=97>0\\\\\sqrt\Delta=\sqrt{97}\\\\x=\dfrac{-(-7)\pm\sqrt{97}}{2(-2)}=\dfrac{7\pm\sqrt{97}}{-4}=-\dfrac{7\pm\sqrt{97}}{4}$

6 0

3 years ago

What is 2+2 im losing my mind today

irina1246 [14]

4 the answer is four 1234

5 0

2 years ago

Read 2 more answers

Plz Help I would appreciate it!!!

andrew-mc [135]

Answer:

a) Similar triangles are triangles with the same shape but not necessarily the same size

b) 15/45 = 8/x

1/3 = 8/x (simplify the 15/45)

x = 8 * 3 (cross multiplication)

x = 24

c) y^2 = 15^2 + 8^2 (Pythagoras theorem)

y = *square root of* 15^2 + 8^2

y = 17

1/3 = 17/z

z = 17 * 3 (cross multiplication)

z = 51

6 0

3 years ago

What is 35.125 as a mixed number??

Sever21 [200]

The number can be separated into 35+0.125
0.125 can be rewritten as,
$\frac{125}{1000}$
So, the number can be rewritten;
35+ $\frac{125}{1000}$
35 $\frac{125}{1000}$

5 0

2 years ago

A friend gives you 120 feet of fencing. You want to make a circular dog

I am Lyosha [343]

Answer:

120 feet of fence is enough for a circle 38 feet in diameter

4 0

3 years ago