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3 years ago

A number decreased by 14 is equal to 18. What is the number?

Mathematics

1 answer:

Sunny_sXe [5.5K]3 years ago

3 0

The correct answer is 32 because:

x-14 = 18 => add 14 to both sides=>

x=32

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Who is good at geometry and willing to answer my questions?<br> The reward: 50 pts.

blsea [12.9K]

Answer:

Step-by-step explanation:

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3 years ago

Find the maximum rate of change of f at the given point and the direction in which it occurs. f(x, y) = 9 sin(xy), (0, 8)

malfutka [58]

Answer:

The magnitude is $\Delta f(0,8) = 72$

The direction is $i$ i.e toward the x-axis

Step-by-step explanation:

From the question we are told that

The function is $f(x, y) = 9sin(xy) \ \ \$

The point considered is $(0,8 )$

Generally the maximum rate of change of f at the given point and the direction is mathematically represented as

$\Delta f(x,y) = [\frac{\delta f(x,y)}{\delta x } i + \frac{\delta f(x,y)}{\delta y } j ]$

$\Delta f(x,y) = [\frac{\delta (9sin(xy))}{\delta x} i + \frac{\delta (9sin(xy))}{\delta y} i ]$

$\Delta f(x,y) = [9y cos (x,y) i + 9xcos (x,y) j]$

At $(0,8 )$

$\Delta f (0,8) = [9(8) cos(0* 8)i + 9(8) sin(0* 8)j ]$

$\Delta f (0,8) = 72 i$

3 0

2 years ago

Given f (x) = 6 (1- x), what is the value of f (-5)?

natta225 [31]

Answer: 36

Step-by-step explanation:

1) substitute x for 6

get f(-5)=6(1--5)= 6+30=46

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3 years ago

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Alla [95]

Answer:

d and e

Step-by-step explanation:

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3 years ago

When two numbers are not equal, an a0 is a sentence that uses the symbols >, <, ≥, ≤, or ≠ to show a relationship.

Naddik [55]

Answer: Im pretty sure it is the equal sign with the line between it

pretty sure that is it tho

Hope that helped

Step-by-step explanation:

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3 years ago

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