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Yuri [45]
3 years ago
5

What is the vertex form of 2x^2+10x-5

Mathematics
1 answer:
Nataly_w [17]3 years ago
7 0
<span><span>Two Solutions
1. x =(10-√140)/4=(5-√<span> 35 </span>)/2= -0.458</span><span> 

2. x =(10+√140)/4=(5+√<span> 35 </span>)/2= 5.458</span></span>
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Use the properties of logarithms to prove log, 1000 = log2 10.
Leto [7]

Given:

Consider the equation is:

\log_81000=\log_210

To prove:

\log_81000=\log_210 by using the properties of logarithms.

Solution:

We have,

\log_81000=\log_210

Taking left hand side (LHS), we get

LHS=\log_81000

LHS=\dfrac{\log 1000}{\log 8}                  \left[\because \log_ab=\dfrac{\log_x a}{\log_x b}\right]

LHS=\dfrac{\log (10)^3}{\log 2^3}

LHS=\dfrac{3\log 10}{3\log 2}                   [\because \log x^n=n\log x]

LHS=\dfrac{\log 10}{\log 2}

LHS=\log_210                    \left[\because \log_ab=\dfrac{\log_x a}{\log_x b}\right]

LHS=RHS

Hence proved.

6 0
3 years ago
The distance from Talamunda to Velcicrita is 700 miles. The train takes 5 hours to travel the distance. At what unit rate is the
erica [24]
The train's rate 140 mph.  700 divided by 5 equals 140.
4 0
3 years ago
Read 2 more answers
HELP PLEASE WILL GIVE BRAINLIST
rodikova [14]

Answer:

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That was the simplified expression

Answer = 3.14 * 40 = 125.6m^2

Step-by-step explanation:

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2 years ago
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5 0
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Slav-nsk [51]
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g(3)=9+2
g(3)=11

6 0
3 years ago
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