Simplify the numerical expression: -4.2 + 8.1 x ( -1.9)

1 answer:

3 0

-19.59 is your answer because u do PEMDAS and that would be 8.1*(-1.9) which gives you -15.39 Then you do -4.2+-15.39 and you would get -19.59

You might be interested in

the length of a rectangle is 5ft more than twice the width and teh area of the rectabgle is 42ft squared. what are the dimension

lara [203]

The width is 3.5 and the length is 12

4 0

3 years ago

Quiz

Fantom [35]

ANSWER
Both have four right angles and opposite sides that are parallel.

5 0

4 years ago

Read 2 more answers

Hey motorcycle shop maintains an inventory of four times as many new bikes as used bikes. If there are 16 new bikes how many use

nlexa [21]

Motorcycle shop maintains

U - used bikes
N - new bikes = 4N

1 U = 4N
? U = 16 new bikes

16/4 = 4. There are 4 used bikes that are in stock.

7 0

4 years ago

Read 2 more answers

What’s the volume of the pyramid

ValentinkaMS [17]

Answer:

The volume of the given pyramid is 300 cm³

Step-by-step explanation:

The volume of a pyramid, $V_{pyramid}$ , is given as follows;

$V_{pyramid} = \dfrac{1}{3} \times Base \ area \times Height$

The height of the pyramid = 12 cm

The side length of the square base of the pyramid = 5 cm

The base area of the pyramid polyhedron with square base = 5 cm × 5 cm = 25 cm²

Therefore, by substitution, we have;

$V_{pyramid} = \dfrac{1}{3} \times 25 \ cm^2 \times 12 \ cm = 300 \ cm^3$

The volume of the given pyramid, V = 300 cm³.

5 0

3 years ago

Using a directrix of y = 5 and a focus of (4, 1), what quadratic function is created?

fomenos

Focus: ( 4, 1 )
Directrix: y = 5
The vertex is always half of a distance between the focus and the directrix.
The vertex must be at: ( 4, 3 ), h = 4, k = 3
|p| is the distance between the vertex and the directrix ( which is over the vertex and p is negative ). p = - 2
The equation:
( x - h )² = 4 p ( y - k )
( x - 4 )² = -8 ( y - 3 )

5 0

3 years ago