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stealth61 [152]
3 years ago
8

Select the two values of x that are roots of this equation.x2 + 3x – 5 = 0

Mathematics
1 answer:
Scrat [10]3 years ago
6 0

Answer:

x = x=\frac{-3+\sqrt{29}}{2},\:x=\frac{-3-\sqrt{29}}{2}

Step-by-step explanation:

x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a} all you need to do for this equation, is solve using the quadratic formula

a = 1

b = 3

c = -5

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Yet another math question
bonufazy [111]

Answer:

69.5

Step-by-step explanation:

Formula = 1/2 ( b1 + b2)h

base 1 + base 2 = 220

7645 x 2 = 14000 + 1200 + 80 + 10 = 15290

15290 / 220 =  764.5

H = 69.5

Lets check

1/2(220 x 69.5)

1/2(15290) = 7645

correct

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

6 0
3 years ago
Read 2 more answers
Is the answer 3, 4, 5, or 6? need answer asap please! :)
-BARSIC- [3]
Don't touch the center. It is already even. 
Start anywhere by connecting a dotted line from one vertex to the next. To keep things so we know what we are talking about, go clockwise. Now you have 2 points that are Eulerized that were not before.

Skip and edge and do the same thing to the next two vertices. Those two become eulerized. Skip an edge and do the last 2.

Let's try to describe this better. Start at any vertex and number them 1 to 6 clockwise.
Join 1 to 2 
Join 3 to 4
Join 5 to 6

I think 3 is the minimum.
3 <<<< answer
4 0
3 years ago
There are 96 people consisting of 48 married couples in a room. Assuming that no husband or wife shakes thr others hand but ever
NikAS [45]

Answer:

4512 handshakes

Step-by-step explanation:

We are told in the question, that there are

96 people in the room = 48 couples

Assuming that no husband or wife shakes each others hand but everyone else shakes hands exactly once

This means

48 couples will shake 94 people because they are excluded

This is calculated as

48 × 94 = 4512 handshakes

6 0
3 years ago
Find x (steps pls)<br><br> | x - 7| = 2<br><br> (i dunt understand the | in the questions)
kirill [66]

these two bars |  | mean <u>absolute value</u>

here's how to find x

| x - 7| = 2

first apply the absolute rule

x - 7 = 2                 x - 7 = -2

in both equations add 7 on both sides

x - 7 + 7 = 2 + 7       x - 7 + 7 = -2 + 7

then simplify the expressions

x = 9                         x = 5

now combine these two solutions to get your answer

x = 9 or x = 5

hopefully my explanation helps

3 0
3 years ago
How to find the mixed number of 4.216
daser333 [38]
4 and 216 over a thosuand
5 0
3 years ago
Read 2 more answers
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