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11111nata11111 [884]
3 years ago
12

HELP ASAP!! (picture above)

Mathematics
1 answer:
lilavasa [31]3 years ago
5 0
To calculate minimum value, do -b/2a to get the x-value, and plug it in to get the y-value: 

-6/8 = -3/4

4 *  (-\frac{3}{4} )^{2} + 6 (-\frac{3}{4} ) - 18 =  \frac{9}{4} -  \frac{9}{2} - 18 =  - \frac{81}{4}

So the minimum value of g(x) is -81/4

This shows that g(x) has a lesser minimum value than f(x)


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Divide the given polynomial by the given monomial.​
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Tyler’s brother works in a shoe store.
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B) $12.6

C) ...

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Sital says that 2.5cm³ is the same as 25mm³. Is she right?​
DanielleElmas [232]
Sital is right
This is because there are 10mm in a cm so therefore you would times 2.5cm by 10 to get 25mm
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Determine if the situation is additive or multiplicative AND determine the equation that corresponds to the situation.
diamong [38]

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The situation is Multiplicative.

The equation will be y=2x

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Input (x)          5       8      11

Output (y)      10     16     22

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8(2) = 16

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3 0
2 years ago
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He loudness of a pile driver is 112 dB. About how many times the sound intensity of the jackhammer is the sound intensity of a p
chubhunter [2.5K]

Complete question :

The loudness of a jack hammer is 96 dB. Its sound intensity is about 0.004.

The loudness of a compactor is 94 dB. Its sound intensity is about 0.0025.

The sound intensity of the jack hammer is about 1.6 times the sound intensity of the compactor.

The loudness of a pile driver is 112 dB. About how many times the sound intensity of the jackhammer is the sound intensity of a pile driver? Round to the nearest ten.

Answer:

40

Step-by-step explanation:

Given that:

Sound intensity of jackhammer = 0.004

Sound intensity of compactor = 0.0025

Sound intensity of jackhammer is about 1.6 times the sound intensity of a compactor

Each factor of 10 in intensity corresponds to 10dB

Pile driver with loudness of 112dB ; 112 / 10 = 11.2

Hence, 10^11.2 = 1.58489 * 10^11

Hence, sound intensity (I) in watts per m²

I = 1.58489 * 10^11 * 10^-12

I = 1.58489 * 10-1

I = 0.158489

Comparing the intensity of pile driver and jackhammer :

Intensity of piledriver / Intensity of jackhammer

0.158489 / 0.004

= 39.622

= 40 (nearest ten)

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2 years ago
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