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3 years ago

(-18)+1+13+(-15)= ?

Mathematics

1 answer:

svetoff [14.1K]3 years ago

4 0

Answer:

−19

Step-by-step explanation:

−18+1+13−15

=−17+13−15

=−4−15

=−19

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Simplify. (x3)4 · X-3 Ox4 0 0x21 0x36

Vanyuwa [196]

Answer:

x^9

Step-by-step explanation:

x^3 ^4 * x^-3

We know that a^b^c = a^ (b*c)

x^3^4 =x^(3*4) = x^12

x^12 * x^-3

We know that a^b * a^c = a^(b-c)

x^(12-3)

x^9

6 0

3 years ago

The following is a sample question for brainliest. Brainliest will be given to the person who can answer the following question

Lemur [1.5K]

Answer:

$Hello,~There$

Solve 6x – 4x – 3 = 11 for x.

Simplifying

x = 7

Step-by-step explanation:

Simplifying

6x + -4x + -3 = 11

Reorder the terms:

-3 + 6x + -4x = 11

Combine like terms: 6x + -4x = 2x

-3 + 2x = 11

Solving

-3 + 2x = 11

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '3' to each side of the equation.

-3 + 3 + 2x = 11 + 3

Combine like terms: -3 + 3 = 0

0 + 2x = 11 + 3

2x = 11 + 3

Combine like terms: 11 + 3 = 14

2x = 14

Divide each side by '2'.

x = 7

8 0

3 years ago

Read 2 more answers

A circle with radius 16 centimeters is inscribed in a square.Which is the area of the shaded region? A. 804.25 square feet B. 10

Dmitrij [34]

Answer:

Area of shaded region = 220.16 ft²

Explanation:

The diagram associated with this question is shown in the attached image

Unit in diagram is ft, so I'll use this unit in the answer

We are given that a circle with radius 16 ft is inscribed in a square

We know that the radius of an inscribed circle in a square is equivalent to half the length of the side of the square

This means that:

side length of the square = 2 × radius = 2 × 16 = 32 ft

From the diagram, we can note that:

area of shaded region = area of square - area of circle .............> equation I

1- getting area of square:

Area of a square is the square of its side length

This means that:

Area of square = (32)² = 1024 ft²

2- getting the area of the circle:

Area of circle = πr² = 3.14 × (16)² = 803.84 ft²

3- getting area of shaded region:

Use equation I

area of shaded region = area of square - area of circle

area of shaded region = 1024 - 803.84 = 220.16 ft²

Hope this helps :)

5 0

3 years ago

Determine the constant that should be added to the binomial so that it becomes a perfect square trinomial. Then write and factor

Nesterboy [21]

Answer:

$64, \ (x+8)^2$

Step-by-step explanation:

A perfect square trinomial is defined as an expression that is obtained from squaring a binomial equation. The perfect square trinomial is in the form of $ax^2+bx+c$ .

The given expression is :

$x^2+16x$

The co-efficient of the x-term in $x^2+16x$ is '16'.

So half of the term 16 ,

$\frac{16}{2} = 8$

and $(8)^2=64$

Now add 64 to the expression:

$x^2+16x+64$

Therefore, the perfect square trinomial is

$(x+8)^2=x^2+16x+64$

8 0

3 years ago

F(x) = -2x^3 + 3(x + 2). Does this mean that it's f(3) = -39

Anarel [89]

Answer:

Step-by-step explanation:

lets replace x with 3

f(3)= -2(3)^3+3(3+2)=-2*27+15=-54+15=-39

5 0

3 years ago

(-18)+1+13+(-15)= ?​

(-18)+1+13+(-15)= ?