Find the roots of the equation below. 7x^2 + 1 = 0

1 answer:

7 0

I have no clue how to solve this myself but i would recommend using photomath for tricky equations because it gives you a step by step tutorial for the problem

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Find the GCF of 36, 42

Ipatiy [6.2K]

Answer:

Answer is 6

Step-by-step explanation:

So the greatest common factor 36 and 42 is 6.

I hope it's helpful!!

4 0

3 years ago

Sarah has 128 stickers. alex has 10 fewer stickers than sarah. how many stickers does Alex have.

nikitadnepr [17]

To get your answer you first subtract 10 from 128 which is 118.

4 0

3 years ago

Help please!! i don’t understand this one!

12345 [234]

Answer:

C, D

Step-by-step explanation:

This equation can be solved any of several ways. One that doesn't require much thought is using the quadratic formula.

For ax² +bx +c = 0, the solutions are ...

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

In the given equation, a=2, b=11, c=5, so this becomes ...

$x=\dfrac{-11\pm\sqrt{11^2-4\cdot2\cdot5}}{2\cdot2}=\dfrac{-11\pm\sqrt{81}}{4}\\\\x=\dfrac{-11\pm9}{4}=\left\{-\dfrac{20}{4},-\dfrac{2}{4}\right\}=\{-5,-\frac{1}{2}\}$

The solutions are ...

C. x = -5

D. x = -1/2

_____

My personal favorite is using a graphing calculator. The solutions are the x-intercepts of the expression on the left. That is, where its value is zero, as the equation says.

5 0

3 years ago

If two are supplementary and one of the angles measure 62 what is the measure of the other angle

Juli2301 [7.4K]

Supplementary angles add to equal 180 degrees. If two angles are supplements of each other and one of the angles measures 62 degrees, you can set its sum with the unknown angle, x, equal to 180 and solve for the unknown angle x.

Equation:
180 = x + 62

Subtract 62 from both sides:
118 = x

Answer:
The measure of the other angle is 118°.

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3 years ago

The football game at davison high school started at 7:05 p.m . the game ended at 9:43 p.m. .how long did the game last

Ivanshal [37]

2 hours and 38 minutes.
Hope this Helps! :)

7 0

3 years ago