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Sindrei [870]
2 years ago
13

Use synthetic division to evaluate f(x) = –2x^3+ 3x – 6 when x = -5.

Mathematics
1 answer:
fgiga [73]2 years ago
6 0

Answer:

-131

Step-by-step explanation:

Use -5 in place of x

f(x) = –2x^3+ 3x – 6

f(x) = -2*-5^3+3*5-6

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Two garden plots are to have the same area. One is square and one is rectangular. The rectangular plot is 2 meters wide and 8 me
Crank

First, let's look at the formulas for the area of square and area of the rectangle.

A_{square}=a^2

A_{rectangle}=a\cdot b

And what this exercise states is that the areas are the same. So:

A_{square}=A_{rectangle}\Longrightarrow a^2=a\cdot b

Now put in the data.

a^2=2\cdot8

Solve for a:

a=\sqrt{2\cdot8}=\sqrt{16}=\boxed{4}

The side of the square garden plot is 4 meters.

Hope this helps.

r3t40

7 0
2 years ago
18 is 45% of what number? ____<br> Please help me I can't solve this
Alexxx [7]

18/x = 45/100

cross multiply

18/x * 45/100

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6 0
3 years ago
Mary walks from comer D to comer E to comer F on a city block that measures 264 feet wide and 900 feet long. Kate walks
Y_Kistochka [10]

Answer:

Difference between the distances traveled by Mary and Kate = 226 feet

Step-by-step explanation:

By applying Pythagoras theorem in right ΔDEF,

(DE)² + (EF)² = (DF)²

By substituting DE = 264 feet and EF = 900 feet

(264)² + (900)² = (DF)²

DF = √(69696+810000)

     = √879696

     = 937.92

Distance traveled by Kate diagonally = 938 feet

Distance traveled by Mary = DE + EF

                                            = 264 + 900

                                            = 1164 feet

Difference between the distances traveled by Mary and Kate = DF - (DE + EF)

= 1164 - 937.92

= 226.07

≈ 226 feet

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2 years ago
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2 years ago
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Evaluate:Log2(1/16)​
e-lub [12.9K]

Answer:

-4 i think

Step-by-step explanation:-4 i think

7 0
2 years ago
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