3 years ago

Find the discriminantx^2-x+5=0

Mathematics

1 answer:

Feliz [49]3 years ago

6 0

Answer:

Step-by-step explanation:

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N =⟨−2, −1⟩ and D=<img src="https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D-3%260%5C%5C4%261%5C%5C%5Cend%7Barray%

zepelin [54]

Answer:

-9

Step-by-step explanation:

-3(-2) + 0(-1)

4(-2) + 1(-1)

6 + 0

-8 + -1

-9

*don't forget to add brackets on each side of every calculation okay :)

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3 years ago

Turn 18 2/5 into a decimal

Studentka2010 [4]

18 2/5 = 92/5 = 18.4 as a decimal;

6 0

3 years ago

Use the Pythagorean Theorem to find the missing length and then round the result to the nearest tenth.

motikmotik

A^2+B^3=c^2
6^2+8^2=c^2
36+16=c^2
52=c^2
Square root both sides
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3 years ago

Use the net to find the approximate surface area of the cylinder to the nearest square meter.

ch4aika [34]

The awnser is 367.38 to the 3rd power only if its volume but if its surface area then it would be to the 3rd power. do u get it?

4 0

3 years ago

1. The sign outside Mrs. Washington’s catering company is in the shape of a trapezoid, as shown below.

inessss [21]

let's notice the tickmarks on the left and right sides, meaning those two sides are twins, and therefore equal, so the perimeter is simply 2.5+2.5+3.5+2.5 = 11 ft.

the trapezoid has an altitude/height of 2 ft, thus

$\bf \textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} a,b=\stackrel{bases}{parallel~sides}\\ h=height\\[-0.5em] \hrulefill\\ a=2.5\\ b=3.5\\ h=2 \end{cases}\implies A=\cfrac{2(2.5+3.5)}{2}\implies A=6$

3 0

4 years ago

Find the discriminantx^2-x+5=0​

Find the discriminantx^2-x+5=0