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3 years ago

Solve for x x + 18.8 = 27.9 A x=9.1 B x=46.7 C x=524.52 D x=45

Mathematics

1 answer:

tia_tia [17]3 years ago

7 0

Answer:

9.1 (A)

Step-by-step explanation:

27.9 - 18.8 = 9.1

hope this helps u

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Find the given higher-order derivative.<br><br> f''(x) = 9- 3/x<br><br> f'''(x)=

Genrish500 [490]

Answer:

$f'''(x)=\frac{3}{x^{2}}$

Step-by-step explanation:

We are given with Second-order derivative of function f(x).

$f''(x)=9-\frac{3}{x}$

We need to find Third-order derivative of the function f(x).

$f''(x)=9-\frac{3}{x}=9-3x^{-1}$

We know that,

f'''(x) = (f''(x))'

So,

$f'''(x)=\frac{\mathrm{d}\,f''(x)}{\mathrm{d} x}$

$f'''(x)=\frac{\mathrm{d}\,(9-3x^{-1})}{\mathrm{d} x}$

$f'''(x)=\frac{\mathrm{d}\,9}{\mathrm{d} x}-\frac{\mathrm{d}\,3x^{-1}}{\mathrm{d} x}$

$f'''(x)=0-3\frac{\mathrm{d}\,x^{-1}}{\mathrm{d} x}$

$f'''(x)=-3(-1)x^{-1-1}$

$f'''(x)=3x^{-2}$

$f'''(x)=\frac{3}{x^{2}}$

Therefore, $f'''(x)=\frac{3}{x^{2}}$

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4 years ago

The total weight of three tins of beans and four jars of jam is 2080g.

ELEN [110]

Lets represent a tin of beans as $b\\$ and a jar of jam as $j\\$ .

Therefore

3b+4j=2080 and 5b=2000.

Now we can say that b=400.

Substitute b in 3b+4j=2080 for 400.

3*400+4j=2080

Simplify

1200+4j=2080

4j=880

j=220.

Therefore

1 tin of beans is 400 grams and 1 jar of jam is 220 grams.

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3 years ago

Walter pays $4 for each gallon, g, of gas for his lawn mower. He uses a gift card worth $5 to reduce the amount he owes for his

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4 years ago

How to turn a percent into an whole number

ad-work [718]

A percentage is simply a special type of fraction with a divisor of 100 and the numerator shown beside the percent sign. So 50% is really 50/100, which reduces to 1/2.

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4 years ago

Read 2 more answers

Un automovil gasta 6 litros cada 110 kilometros ¿cuantos kilometros recorrera con 22 litros

natulia [17]

Answer:

403.33 kilometros

Step-by-step explanation:

De la pregunta anterior:

6 litros = 110 kilómetros

22 litros = x

Cruz multiplicar

6 litros × x = 22 litros × 110 kilómetros

x = 22 litros × 110 kilómetros / 6 litros

x = 403.33 kilometros

Así, 22 litros recorrerán 403.33 kilómetros

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3 years ago