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3 years ago

When will the sum of two numbers be zero

2 answers:

8 0

The sum of two numbers will be zero when you have the same number and one is positive and one is negative. For example 1 + -1= 0

Ad libitum [116K]3 years ago

6 0

The sum of two numbers will be zero when you have the same number and one is positive and one is negative. For example 2+ -2= 0

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Write a recursive formula for the following sequence:10, 5, 0, -5,... *

Alika [10]

Answer:

decrease by 5

Step-by-step explanation:

n= 10

then in sequence,

n= n-5

4 0

2 years ago

Solve the equations and graph the solution

jenyasd209 [6]

Given:

The inequalities are:

$-5x$ or $2x$

To find:

The solution for the given inequalities and graph the solution.

Solution:

We have,

$-5x$ or $2x$

Solve the above inequalities separately.

$-5x$

Divide both sides by -5.

$x>\dfrac{-3}{-5}$

$x>\dfrac{3}{5}$ ...(i)

And,

$2x$

Divide both sides by 2.

$x$

$x$ ...(ii)

From (i) and (ii). we get

$x$ or $x>\dfrac{3}{5}$

The interval notation of the solution is $(-\infty,-4)\cup \left(\dfrac{3}{5},\infty\right)$ .

The graph of the solution is shown below.

7 0

2 years ago

If y varies directly as x and y = 12 when x = 8, find y when x = 14.

Alex17521 [72]

The direct variation between x and y may be written as,
y = kx
where k is the constant of variation. From the first set of values of the variables,
12 = k(8)
the value of k is 1.5. Substituting the next set to the same equation,
y = 1.5(14)
The value of y is 21.

8 0

2 years ago

What does y equal?

tensa zangetsu [6.8K]

Answer:

$y=-4x+17$

Step-by-step explanation:

$\begin{pmatrix}4&1\end{pmatrix}\quad \mathrm{and}\quad \begin{pmatrix}2&9\end{pmatrix}$

$\mathrm{Computing\:dot\:product\:of\:two\:vectors}:\quad \left(x_1,\:\:\ldots ,\:\:x_n\right)\cdot \left(y,\:\:\ldots ,\:\:y_n\right)=\sum _{i=1}^nx_iy_i$