All categories

3 years ago

The value of x + x(xx) when x = 2 is: (a) 10, (b) 16, (c) 18, (d) 36, (e) 64

2 answers:

6 0

X+x(xx) means
x plus x times the quantity x times x
2 plus 2 times the quantity 2 times 2
pemdas
2 plus 2 times 4
2 plus 8
10

A is answer

miskamm [114]3 years ago

3 0

Solution:

x + x(xx)

Put the value of x = 2 in the above expression we get,

2 + 2(22)

= 2 + 2(2 × 2)

= 2 + 2(4)

= 2 + 8

= 10

Answer: (a)

You might be interested in

A box has a volume of 192 cubic inches, a length that is twice as long as its width, and a height that is 2 inches greater than

ruslelena [56]

Answer:

Therefore the dimension of the cuboid is 8 inches×4 inches ×6 inches.

Step-by-step explanation:

Cuboid : A cuboid is a three dimension shape. The length ,breadth and height of a cuboid are not same.

A cuboid has 6 faces.
A cuboid contains 8 vertices.
A cuboid contains 12 edges .
The total surface area of a cuboid is

= 2(length×breadth+breadth×height+length×height) square units

The dimension of a cuboid is written as length×breadth×height.

The volume is( length×breadth×height) cubic units

Given that the volume of the box is 192 cubic inches.

Let x inches be the width of the cuboid.

Since the length is twice as long as its width.

Then length = 2x inches

Again height is 2 inches longer than width.

Then height = (x+2) inches.

Therefore the volume of the cuboid is

$=[x\times 2x\times (x+2)]$ cubic inches

$=[2x^2(x+2)]$ cubic inches

$=(2x^3+4x^2)$ cubic inches

According to the problem,

$2x^3+4x^2=192$

$\Rightarrow 2x^3+4x^2-192=0$

$\Rightarrow 2(x^3+2x^2-96)=0$

$\Rightarrow (x^3+2x^2-96)=0$

$\Rightarrow x^3-4x^2+6x^2-24x+24x-96=0$

$\Rightarrow x^2(x-4) +6x(x-4)+24(x-4)=0$

$\Rightarrow (x-4)(x^2+6x+24)=0$

Therefore x=4

Since the all zeros of x²+6x+24 =0 is negative.

Therefore breadth = 4 inches

length=(2×4) inches=8 inches

and height = (4+2)inches = 6 inches.

Therefore the dimension of the cuboid is 8 inches×4 inches ×6 inches.

8 0

3 years ago

Find the slope<br> 1) y=4x+5

OlgaM077 [116]

Answer: there's the slope!!!

Step-by-step explanation:I saw the slope

6 0

3 years ago

Susie's bank account balance for January was -$100,$300,$475,-$200,-$250, and $500. What is the range of Susie's bank account ba

Vadim26 [7]

Answer: I think the answer might be 225 but I'm not sure I'm 100% percent correct

8 0

3 years ago

Read 2 more answers

What is the highest fractions 2/4 5/6 3/2 1/9 4/5 8/2

Akimi4 [234]

Answer:

8/2

eight halves

Step-by-step explanation:

please mark this answer as brainliest

6 0

2 years ago

5(3 – x) < -2x + 6,<br> Please help

svetlana [45]

Answer:

9<7x

Step-by-step explanation:

5(3-x) < -2x+6

15-5x<-2x+6

9<7x

then you can simplify it if you want

3 0

3 years ago