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irakobra [83]
3 years ago
13

Solve 8x2 + 6x + 5 = 0

Mathematics
1 answer:
MariettaO [177]3 years ago
5 0
8 x 2 + 6x + 5=0
16 + 6x + 5=0
6x+21=0
6x+21-21=0-21
6x=-21
6x/6=-21/6
x=-7/2
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Solve the inequality 4-5<25
SVETLANKA909090 [29]

Answer:

4_5=_1 then -1 is <25 25_1 25<-1

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What is the solution to this system of equations? -5.9x-3.7y=-2.1 and 5.9x+3.7y=2.1
goblinko [34]

No solution because everything cancels out

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Write in standard notation 6.12 x 10 to the 3rd power
faltersainse [42]
6.12 x 10^3 = 6120 .........<span> in standard notation
</span><span>
hope it helps</span>
7 0
3 years ago
Read 2 more answers
Math help.... Please....
garri49 [273]
First, you want to solve for the equation for this problem, would be: 
0.05N + 0.10D = 20.50 
While N = The amount of nickels, and D = The amount of dimes. 

Since N = 164, and D = 123. It would add up to 287 coins. 164 + 123 = 287. 
Now that you have the number for those two variables, solve the equation for when N = 164, and D = 123. 
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</span><span>8.2 + 12.3 = 20.50 
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<em>I hope this helps! </em>

<em>~ Notorious Sovereign</em>
6 0
3 years ago
Read 2 more answers
Use Euler’s Formula to find the missing number.<br> Edges: 37<br> Faces: 25<br> Vertices: ?
matrenka [14]

Answer:

Step-by-step explanation:

Comment

The formula that relates edges faces and vertices is  F + V = E + 2

Givens

Edges (E): 37

Faces (F) = 25

Vertices: x

Solution

25 + x = 37 + 2                Subtract 25 from both sides.

25-25 +x= 37 - 25 + 2    Combine

x = 12 + 2

x = 14

Answer: The vertices =<u> 14</u>

7 0
2 years ago
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