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3 years ago

25 pts

Mathematics

2 answers:

Solnce55 [7]3 years ago

8 0

Answer:

490lbs.

Step-by-step explanation:

kirill [66]3 years ago

8 0

Answer:

490 lbs

Step-by-step explanation:

times means multiplication, so 35 times means 14 rows of 35 (and vice versa).

14 x 35

490

(Check the attached file for a full count)

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NEED ANSWERED ASAP!

antoniya [11.8K]

The difference between masses of both cones is: 838 grams

Step-by-step explanation:

As both cones have same height and radius. Both will have same volume

Here

r=4 cm

h= 10 cm

The volume is given by:

$V=\frac{1}{3}\pi r^2h$

Putting values

$V=\frac{1}{3}*\frac{22}{7}*(4)^2*10\\V=\frac{22}{21}*16*10\\V=167.62\ cm^3$

Mass of Steel Cone:

$M_s=Density\ of\ steel*Volume\\=7.75*167.62\\=1299.055\ grams$

Mass of Granite Cone:

$M_g=Density\ of\ granite*Volume\\=2.75*167.62\\=460.955\ grams$

Difference between masses of both cones

$D = M_s-M_g\\=1299.055-460.955\\=838.1\ grams$

Rounding off to nearest gram: 838 grams

The difference between masses of both cones is: 838 grams

Keywords: Volume, Mass

Learn more about volume at:

#LearnwithBrainly

6 0

3 years ago

Let |a| = 12 at an angle of 25° and |b| = 7 at an angle of 105°. What is the magnitude of a + b? Round to the nearest decimal.

FromTheMoon [43]

Answer:

It is 15.4 on edge. C

Step-by-step explanation:

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3 years ago

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Select the equation of the line parallel to the equation y = -2x - 7 that passes through the point (3, 1). y = -2x + 7 y = -2x +

Vilka [71]

Y - y₁ = m(x - x₁)
y - 1 = -2(x - 3)
y - 1 = -2(x) + 2(3)
y - 1 = -2x + 6
+ 1 + 1
y = -2x + 7

The answer is A.

7 0

3 years ago

What is the product of a number and 3?

RideAnS [48]

The product is the result of multiplying, and whatever number is multiplied by 3 is the amount of times you add 3 to the answer.

Example:

3x7= 3+3+3+3+3+3+3=21

8 0

4 years ago

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I NEED THE ANSWER PLS :)

Andre45 [30]

Answer:

x = 48

Step-by-step explanation:

It is a 90 degree angle. So first you would subtract 42 from 90 degrees. Then you'd get your answer! Hope this helped

4 0

3 years ago

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