All categories

3 years ago

Simplify the expression 4+(9+x).

Mathematics

1 answer:

Anna11 [10]3 years ago

8 0

The answer is 36+4x u want me to explain?

You might be interested in

The elevation we call sea level is actually the average level of the sea. This means that at average sea level, the elevation is

Igoryamba

Answer:

the first one is -4.6

Step-by-step explanation:

5 0

3 years ago

Write the first six cube of natural number

IgorC [24]

Answer:

1, 8, 27, 64, 125, 216, 343, 512, ... 1, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, ...

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

. Ahmed spent $131 on shirts. Fancy shirts cost $28 and plain shirts cost $15. If he bought a total of 7 shirts, then how many f

Akimi4 [234]

Answer:

He bought 2 fancy shirts and 5 plain shirts.

Step-by-step explanation:

28+28+15+15+15+15+15=131

5 0

3 years ago

Write a quadratic equation in standard form that has a vertex of (-2, 6) and passes through (-4, -2).

Marizza181 [45]

Answer:

The equation of the quadratic in standard form is:

$y=-2x^2-8x-2$

Step-by-step explanation:

Since they give us the information about where the vertex of the parabola is located, and one extra points where it passes through, we can use the general form of a quadratic in vertex form:

$y-y_v=a\,(x-x_v)^2$

where $(x_v,y_v)$ is the location of the vertex (in our case the point (-2,6).

Therefore the equation above becomes:

$y-y_v=a\,(x-x_v)^2\\y-6=a\,(x-(-2))^2\\y-6=a\,(x+2)^2$

Now,we can use the fact that the point (-4,-2) is also a point of the graph, to find the value of the parameter $"a"$ :

$y-6=a\,(x+2)^2\\-2-6=a\,(-4+2)^2\\-8=a\,(-2)^2\\-8=a\,*4\\a=-2$

Then, the equation of the quadratic with such characteristics becomes:

$y-6=-2\,(x+2)^2\\y-6=-2x^2-8x-8\\y=-2x^2-8x-2$

which is the equation of the quadratic in standard form.

7 0

3 years ago

Solve for Z<br> N=5sy^4-7sz

Tcecarenko [31]

Answer:

z = (5sy^4 - N) / 7s

Step-by-step explanation:

N = 5sy^4 - 7sz

Add 7sz to both sides:

N + 7sz = 5sy^4

7sz = 5sy^4 - N

Divide both sides by 7s:

z = (5sy^4 - N) / 7s.

4 0

3 years ago