Would this be 18?? Please help

A deli owner sold 90 sandwiches in one day. Of those sandwiches, 36 were pastrami.

kaheart [24]

Answer: 40%

Step-by-step explanation:

5 0

3 years ago

Find the surface area of the sphere.

fenix001 [56]

Answer:

804 in^2

Step-by-step explanation:

The surface area of a sphere is given by A = 4πr^2, where r is the radius of the sphere.

Here, A = 4π*8^2 in^2 (must use units of measurement)

=256π in^2, or approximately 804 in^2

4 0

3 years ago

Read 2 more answers

Write each vector described below in component form and find its magnitude. Draw an arrow originating from (0,0) to

ElenaW [278]

Answer:

a = 3xi - 4yj b = -6xj c = -2xi + 2yj d = 5xi + 7yj

a ; b ; c ; d vectors

i and j unit vectors

Step-by-step explanation:

See attached file

8 0

2 years ago

What is the area of the composite figure? (6π 4) cm2 (6π 16) cm2 (12π 4) cm2 (12π 16) cm2

raketka [301]

The area of the considered composite figure is given by: Option: 6π + 16 cm²

<h3>How to calculate the surface area of a composite figure?</h3>

Surface area are derived for some standard shapes like circle, triangle, parallelogram, rectangle, trapezoid, etc.

When some shape comes which isn't standard figure, then we find its area by slicing it (virtually, like by drawing lines) in standard shapes. Then we calculate those composing shapes' area and sum them all.

Thus, we have:

$\text{Area of composite figure} = \sum (\text{Area of composing figures})$

That ∑ sign shows "sum"

For this case, the missing image is attached below.

As visible, the area of the figure = Sum of area of those 3 semi circles + Area of that square(its square because it has 4 equal sides in which adjacent sides are perpendicular) in between.

The side of the square is of 2+2=4 cm( as half of its side is 2 cm), thus, Area of that square = 4² = 16 cm²

All those 3 semicircles has radius = 2 cm

Since radius is same, so area of those 3 semicircle is same = $\dfrac{\pi r^2}{2} = \dfrac{\pi (2)^2}{2} = 2 \pi\: \rm cm^2$