3 years ago

4x^2 - 5x when x = 3 ^ is squared

Mathematics

2 answers:

guajiro [1.7K]3 years ago

8 0

4(3)^2 - 5(3) = 21

plug in 3 for the x

weeeeeb [17]3 years ago

5 0

Answer:

-5

Step-by-step explanation:

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Someone please help??

Novay_Z [31]

Answer:

x = 1

Step-by-step explanation:

The base is 3. The value of 3^x will be 3 only when x=1.

_____

The value of any exponential term will be equal to the base when the exponent is 1.

8 0

3 years ago

Help, please simplify.. thank you

Romashka [77]

$\bf \cfrac{3.7\times 10^{-12}(42)}{(.000000025)(4.0\times 10^{-15})}\implies 
\cfrac{37\times 10^{-13}(42)}{(25\times 10^9)(4\times 10^{-15})}$

$\bf \cfrac{37(42)\times 10^{-13}}{25(4)\times 10^910^{-15}}\implies 
\cfrac{1554\times 10^{-13}}{100\times 10^{9-15}}\implies 
\cfrac{1554\times 10^{-13}}{1\times 10^2\times 10^{9-15}}
\\\\\\
\cfrac{1554\times 10^{-13}}{10^{2+9-15}}\implies \cfrac{1554\times 10^{-13}}{10^{-4}}\implies 1554\times 10^{-13}\times 10^4
\\\\\\
1554\times 10^{-13+4}\implies 1554\times 10^{-9}\implies \cfrac{1554}{10^9}\implies 0.000001554$

8 0

4 years ago

A sphere has a radius of 6 meters. A second sphere has a radius of 3 meters. What is the difference of the volumes of the sphere

Naily [24]

Answer:

Step-by-step explanation:

volume of sphere = (4/3)πr³

Difference= [(4/3)*π*6³]-[(4/3)*π*3³]

$=\pi*[(\frac{4}{3}*6*6*6) - (\frac{4}{3}*3*3*3)]\\\\=\pi*[(4*2*6*6)-(4*3*3)]\\\\=\pi *[288-36]\\\\=252\pi$

3 0

4 years ago

somebody please help me on this it’s for geometry please don’t waste my answers i’ll mark you the brainliest

serg [7]

Parallel meaning if the lines ran on forever they would never intersect, the only points making a line possible are AX XB AB

6 0

4 years ago

I tried but didn't quit understand this one

Andrei [34K]

I believe the answer is 741,.

5 0

3 years ago