All categories

3 years ago

Really need your help

Mathematics

1 answer:

Crank3 years ago

3 0

1: (n + 10) +5

2: (n - 7) x 8

3: (n ÷ 3) -1

4: ([n - 8] x 6) - 10

5: (n - 1) - (2n)

6: [n x (-n)] + 7

You might be interested in

PLEASE HELP IM DYING RN.<br>WHAT IS X? 6(x+2)=2(x-3)

Iteru [2.4K]

Answer: x=-9/2
Alternative Form: x= -4 1/2, x= -4.5

7 0

3 years ago

Read 2 more answers

Determine whether set of values represents an inverse variation. If yes, identify the constant of variation and write an inverse

Natasha_Volkova [10]

SOLUTION

If the table represents an inverse variation, it means that y is inversely proportional to x, written as

$\begin{gathered} y\propto\frac{1}{x} \\ \propto is\text{ a sign of proportionality } \end{gathered}$

Removing the proportionality sign and introducing a constant k, we have

$\begin{gathered} y=k\times\frac{1}{x} \\ y=\frac{k}{x} \end{gathered}$

In the first column, we have x = -4 and y = 3.5. Substituting these values for x and y, we have

$\begin{gathered} y=\frac{k}{x} \\ 3.5=\frac{k}{-4} \\ k=3.5\times-4 \\ k=-14 \end{gathered}$

So, if it's an inverse variation, the relationship would be

$y=\frac{-14}{x}$

In the second column, x = -2 and y = 7.

Now lets substitute the value of x for -2. If we get y to be 7, then the relationship is an inverse variation

We have

$\begin{gathered} y=\frac{-14}{x} \\ y=\frac{-14}{-2} \\ y=7 \end{gathered}$

Since we got y = 7, the relationship is therefore an inverse variation.

The constant k = -14

The equation for the inverse variation is

$y=\frac{-14}{x}$

3 0

1 year ago

Right triangles 1,2 and 3 are given to its all their angle measures and approximate side lengths

Ede4ka [16]

Answer:

5.4 units

Step-by-step explanation:

From the figure ,it's clear that sin(50) = PQ/7

Then

PQ = 7×sin(50) = 5.362311101833

Therefore the approximate length of PQ I saw 5.4

6 0

2 years ago

Bob planted 4 tomatoes, 2 of them grew but the other ones didn't. How many didn't grow

Marizza181 [45]

Answer:2

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Is y = 2x - 3 a function

Lostsunrise [7]

Answer: Yes it is a function.

Step-by-step explanation: When trying to find out, you put it into a calculator and can tell by the line if it is a function.

7 0

3 years ago