All categories

3 years ago

-2(x – 3) - 2 simplify the expression

Mathematics

1 answer:

Inessa [10]3 years ago

4 0

Answer:

-2x+4

Step-by-step explanation:

-2(x-3)-2

-2x+6-2

-2x+4

You might be interested in

Find area of the shaded portion of the figure

Nikitich [7]

Answer:

$\sf C) \quad 57 \frac34 \:cm^2$

Step-by-step explanation:

To find the shaded area, subtract the area of the semicircle from the area of the rectangle.

Formulae

$\textsf{Area of a rectangle}=\textsf{width} \times \textsf{length}$

$\textsf{Area of a semicircle}=\dfrac12 \pi r^2 \quad \textsf{(where r is the radius)}$

$\textsf{Diameter of a circle}=2r \quad \textsf{(where r is the radius)}$

Area of rectangle

Given dimensions of the rectangle:

width = 7 cm
length = 11 cm

Substituting these values into the formula:

$\implies \textsf{Area}=\textsf{7} \times \textsf{11}=77\: \sf cm^2$

Area of semicircle

Diameter of semicircle = 11 - 2 - 2 = 7 cm

⇒ Radius (r) = 7 ÷ 2 = 3.5 cm

$\textsf{let}\: \pi=\dfrac{22}{7}$

$\implies \textsf{Area}=\dfrac12 \left(\dfrac{22}{7}\right) (3.5)^2=19.25\: \sf cm^2$

Area of shaded region

= area of rectangle - area of semicircle

= 77 - 19.25

= 57.75

$\sf =57 \frac34 \:cm^2$

4 0

3 years ago

You spin the spinner twice. Find the probability of spinning a three and then a 4.

Lilit [14]

Answer:

1/36

Step-by-step explanation:

chances of getting a 3 is 1/6 and a 4 is 1/6 multiply them and you get 1/36

3 0

3 years ago

Find each product mentally 4×5 1/8 and 7×3.8

professor190 [17]

Answer:

4×5 1/8 = 20.5

7×3.8 = 26.6

Hope this helps!

6 0

3 years ago

Describe the image when a scalene triangle is rotated 180 degrees counterclockwise

Luba_88 [7]

Answer:

It is a same size scalene triangle as the original triangle.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

What is the constant of proportionality for the graph

faust18 [17]

What is the constant of proportionality for the graph?
It is the same of the slope.
A. 0.5

7 0

3 years ago

Read 2 more answers