All categories

2 years ago

PLEASE HELP :)))

Mathematics

1 answer:

DerKrebs [107]2 years ago

5 0

Answer: 596 + 860 = 1456

You might be interested in

What would be the volume of (a) air (b) plastic in a ball with 25cm diameter made from plastic 2mm thick?

morpeh [17]

Answer:

Part a) The volume of the air is $V=7,794.78\ cm^{3}$

Part b) The volume of the plastic is $V=386.45\ cm^{3}$

Step-by-step explanation:

we know that

The volume of the sphere is equal to

$V=\frac{4}{3}\pi r^{3}$

step 1

Find the volume of the complete ball (air +plastic)

we have

$r=25/2=12.5\ cm$ ------> the radius is half the diameter

substitute

$V=\frac{4}{3}\pi (12.5)^{3}$

$V=8,181.23\ cm^{3}$

step 2

Find the volume of the air

we have that

The plastic is 2 mm thick

Convert to cm

2 mm=2/10=0.2 cm

The radius of the interior of the ball is

$r=12.5-0.2=12.3\ cm$

substitute

$V=\frac{4}{3}\pi (12.3)^{3}$

$V=7,794.78\ cm^{3}$ -----> this is the volume of the air (interior of the ball)

step 3

Find the volume of the plastic

we know that

The volume of the plastic is equal to the volume of the complete ball minus the volume of the air

$8,181.23\ cm^{3}-7,794.78\ cm^{3}=386.45\ cm^{3}$

3 0

3 years ago

Read 2 more answers

Drag numbers to write an equation for the line in slope-intercept form. Numbers may be used once, more than once, or not at all.

Volgvan

Answer:

Slope: -4

Y-intercept: 5

Step-by-step explanation:

The slope goes down 4 and over one which means that the slope is -4.

When X is 0, Y is 5

Good Luck!!

5 0

2 years ago

$4,800,000 is what percent of $6,000,000?

mixer [17]

4,800,000/6,000,000 = 48/60 = 8/10 = 0.8

80% of 6,000,000 is 4,800,000
so 4,800,000 is 80% of 6,000,000

7 0

3 years ago

What trig function would I use to solve for x?

IRINA_888 [86]

Answer:

Cosine

Step-by-step explanation:

SohCahToa

The sides are: adjacent to the angle and are the hypotenuse.

(hope this helps :P)

8 0

2 years ago

Michaela pays her cell phone service provider $49.95 per month for 500 minutes. any additional minutes used cost $0.15 each. in

True [87]

75 additional minutes were used

$61.20-$49.95=$11.25

$11.25/$0.15=75 additional minutes

4 0

2 years ago