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3 years ago

Si f(x) = 1/2x^2-(1/4x+3),¿cuál es el valor de f(8)? (3) 27 (2) 17 (4) 33 (1) 11

Mathematics

1 answer:

gavmur [86]3 years ago

5 0

Answer:

Step-by-step explanation:

To evaluate f(8) substitute x = 8 into f(x)

f(8) = $\frac{1}{2}$ × 8² - ( $\frac{1}{4}$ × 8 + 3)

= $\frac{1}{2}$ × 64 - (2 + 3)

= 32 - 5

= 27

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Plese i need help on this one !!!!!!!

patriot [66]

Answer:

I got 32.

Step-by-step explanation:

I used the Pythagorean theorem to find the lengths of the width and length. The length between (-1, 4) and (3, 3) was approximately 4 in. The distance between (-1, 4) and (-3, -4) was approximately 8 in. I then used those numbers to find the perimeter ((2*4)+(2*8))

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3 years ago

Read 3 more answers

A satellite is composed of 30 modular units, each of which is equipped with a set of sensors, some of which have been upgraded.

Anit [1.1K]

Answer:

$\frac{1}{7}$

Step-by-step explanation:

The satellite has 30 modular units.

There are equal numbers of non-upgraded sensors in each unit.

Let us assume that on the entire satellite there are x numbers of upgraded sensors.

Then as per the given condition, there are $\frac{x}{5}$ number of non-upgraded sensors in one unit.

Therefore, the number of non-upgraded sensors on the entire satellite is $\frac{30x}{5}$ =6x

Hence, total number of sensors in the satellite is (x+ 6x) =7x

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3 years ago

Factorise fully 12x³ - 30x²

MariettaO [177]

Answer:

6x² (2x - 5)

Step-by-step explanation:

12x³ - 30x²

= 6x² (2x - 5)

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2 years ago

h.) How many different ways can Johnny place an algebra book, a geometry book, a chemistry book, an English book, and a health b

Nady [450]

Answer:

Step-by-step explanation:

take algebra book. it can be placed first or 2nd or 3rd or 4th or last. so 5 different ways. but geometry book will be arranged in 4 ways, since algebra book is already arranged.

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3 years ago

Find the value of c .<br> 5/2 = c/22<br> c = ___.

sleet_krkn [62]

Answer:

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Step-by-step explanation:

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3 years ago