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2 years ago

I NEED THIS ASAP!!!!!!!!

Mathematics

2 answers:

drek231 [11]2 years ago

6 0

I know you need this bbc

BabaBlast [244]2 years ago

5 0

The answer is A. When you add 2 to -3 the result is -1 which is where the arrow on the number line ends

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Use the quadratic formula to solve the equation x^2-7x-6=0

olganol [36]

Answer:

$\frac{7\pm\sqrt{73}} {2}$

Explanation:

We have been given with the quadratic equation $x^2-7x-6=0$

We have general formula to find the roots of a quadratic equation first we find the discriminant with formula

$D=b^{2}-4ac$

and after that to find the variable suppose x we have the formula

$x=\frac{-b\pm\sqrt{D}} {2a}$

And general quadratic equation is

$ax^2+bx+c=0$

On comparing the given quadratic equation with genral quadratic equation we will have values

a=1, b=-7 and c=-6

After substituting these values in the formula we will get

$D=(-7)^2-4(1)(-6)={73}$

After substituting in the formula to find x we will get

$\frac{-(-7)\pm\sqrt{73}} {2}= \frac{7\pm\sqrt{73}} {2}$

4 0

3 years ago

Read 2 more answers

4.8 + 2.2w − 1.4w + 2.4 ?

vaieri [72.5K]

Answer:

7.2+0.8W

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

During a bike challenge,riders have to collect various colored ribbons. Each 1/2 mile they collect a red ribbon, each 1/8 mile t

andrew-mc [135]

At the 3/4 marker, the rider can collect a green ribbon and a blue ribbon.

Because 3/4 is the 3rd stop for a blue ribbon and 3/4 is the 6th stop for a green ribbon.

4 0

2 years ago

What is the value of the square of i?

BlackZzzverrR [31]

I^2 = (sqrt-1)^2 then the square cancels out so the answer is just

-1

3 0

2 years ago

STION 1

Lorico [155]

Answer:

1.1.1- Michael has 200 lovebirds in total

1.1.2- There are 40 birds in each cage

1.1.3- 120/80 = 3/2

Step-by-step explanation:

120+80=200

200÷5=40

120÷40=3, 80÷40=2

7 0

3 years ago