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3 years ago

I don’t know how to solve this

Mathematics

2 answers:

max2010maxim [7]3 years ago

4 0

Answer:z^2

Step-by-step explanation:

Stells [14]3 years ago

3 0

Answer:

z^2

Step-by-step explanation:

z^5/1 multipy by z/z^u

=z^6/z^4

=z^6-4

=z^2

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At the half ime show, a marching band marched in formation. the lead drummer started at a point with coordinates (–2, –5) and mo

spayn [35]

A) y=3x+ 1

b) (-1, -2)

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3 years ago

Dani says she is thinking of a secret number. As a clue, she says the number is the least whole number that has three different

pychu [463]

Answer:

30 = 2 x 3 x 5

Step-by-step explanation:

The secret number is the least whole number that has three different prime factors. Since, this is the least whole number it should have the 3 smallest prime numbers as its factors.

The 3 smallest prime numbers are: 2, 3 and 5

The number that will have 2, 3 and 5 as its only factors will be the least whole number with 3 different prime factors.

So, the secret number must be = 2 x 3 x 5 = 30

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3 years ago

Mr.arswan prepares a mixture for a science experiment. He measures 10.5 grams of wood shavings,150 grams of iron filings, and 18

Fantom [35]

Answer:

A mixture is a combination of two or more kinds of matter (in our problem, wood, iron, and salt) which are physically mixed but not chemically combined. The sum of each of the matter that makes up the mixture is just the mass of the mixture

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Mass iron filings=150g

Mass salt=18.5g

Step-by-step explanation:

HOPE IT HELPS

7 0

3 years ago

Find f(-5) and f(12) for each piecewise function f(x){-4x+3 if x<3

Law Incorporation [45]

<h3>Answers:</h3>

f(-5) = 23
f(12) = 433

==================================================

Explanation:

The given piecewise function is

$f(x) = \begin{cases}-4x+3 \ \text{ if } \ x < 3\\-x^3 \ \text{ if } \ 3 \le x \le 8\\3x^2+1 \ \text{ if } \ x > 8\end{cases}$

At first piecewise functions may be strange confusing things, but they aren't so bad. I like to think of it like this: f(x) is a function that changes its identity based on what the input x is. We have three situations

f(x) = -4x+3 when x < 3
f(x) = -x^3 when $3 \le x \le 8$
f(x) = 3x^2+1 when x > 8

In a sense, we have three different functions but they are combined somehow.

If x is smaller than 3, then we go for the first definition. Or if x is between 3 and 8, then we go for the second definition. Or if x is larger than 8, then we go for the third definition.

-----------------------

f(-5) means f(x) when x = -5. We see that -5 is smaller than 3, so x = -5 makes x < 3 true. We'll use the first definition

f(x) = -4x+3

f(-5) = -4(-5)+3

f(-5) = 20+3

f(-5) = 23

------------------------

Now the input is x = 12. This is larger than 8. In other words, x = 12 makes x > 8 true. We'll use the third definition

f(x) = 3x^2+1

f(12) = 3(12)^2+1

f(12) = 3(144)+1

f(12) = 432+1

f(12) = 433

------------------------

Side notes:

We won't use the second definition since we don't have any x inputs between 3 and 8
To say "less than or equal to" on a keyboard, you can write "<=" without quotes. For example, $x \le 5$ is the same as x<=5