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3 years ago

El opuesto de un polinomio es:

Mathematics

1 answer:

SIZIF [17.4K]3 years ago

4 0

Answer:

Step-by-step explanation:

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Bill has x pence.

Anna [14]

Ben has x pence, but Bill has 2x (twice more)

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2 years ago

A community hall is in the shape of a cuboid the hall is 40m long 15m high and 3m wide. 10 litre paint covers 25m squared costs

Darina [25.2K]

Answer:

Total cost for tiles and paints is $924.

Step-by-step explanation:

We have been given that a community hall is in the shape of a cuboid. The hall is 40m long 15m high and 3m wide.

The paint will be required for 4 walls and ceiling.

Let us find area of walls and ceiling.

$\text{Area of walls and ceiling}=(2*40*15)+(2*3*15)+(40*3)$

$\text{Area of walls and ceiling}=1200+90+120$

$\text{Area of walls and ceiling}=1410$

Therefore, the area of walls and ceiling is 1410 square meters.

Given: Cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. Therefore,

$\text{ The total painting cost}=10*(\frac{1410}{25})$

$\text{ The total painting cost}=10*56.4=564$

Therefore, the total painting cost is $564.

Tiles will be required for floor. Let us find the area of floor.

$\text{Area of floor} = 40*3\text{ square meters}$

$\text{Area of floor} =120\text{ square meters}$

Given: 1m squared floor tiles costs $3. So,

$\text{Total cost for tiles} = 3*120 = 360$

Therefore, the total tiles cost is $360.

Now let us find combined total cost of tiles and paint.

$\text{Combined total cost}= 564+360 = 924$

Therefore, the combined total cost of tiles and paint is $924.

6 0

3 years ago

Rate of change on a graph.- I'll give brainly for the answer, thank you

Norma-Jean [14]

Answer:

The slope of graph is $\mathbf{\frac{3}{2}}$

Option C is correct option.

Step-by-step explanation:

We need to find the slope (rate of change) of the graph

The formula to calculate slope is: $Slope=\frac{y_2-y_1}{x_2-x_1}$

Taking two points from the graph: (You can take any two points from the graph)

Point 1 (-4,-3)

Point 2 (-2,0)

We have: $x_1=-4, y_1=-3, x_2=-2, y_2=0$

Putting values in the formula and finding slope

$Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{0-(-3)}{-2-(-4)} \\Slope=\frac{0+3}{-2+4} \\Slope=\frac{3}{2}$

So, the slope of graph is $\mathbf{\frac{3}{2}}$

Option C is correct option.

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3 years ago

Give the values of n and ell for an electron in a 4d orbital. n = ell = 16 select the values of mell and ms that are possible fo

Anestetic [448]

There are four quantum numbers: n, l, ml and ms. When the orbital is 4d, the 4 is corresponding to n. Thus, n=4. Then, the d corresponds to l = 2. Now, to find the value for ml, take the values of -l to +l. Therefore,

ml = -2, -1, 0, 1, 2

Then,ms could only be either +1 or -1.

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3 years ago

Resuelve estas ecuaciones 1. x I 6 = 14 X=

valentinak56 [21]

Answer:

3 sjshgegegegehsksksjsjsissjs

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3 years ago