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3 years ago

Question:

Mathematics

2 answers:

AleksandrR [38]3 years ago

7 0

Answer:

B

Step-by-step explanation:

2+4=9:9×56×402= 202608

202608+632=203240

Delicious77 [7]3 years ago

7 0

The answer is B hope this helps

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Find the weight of the cast iron shape shown below at 0.26 pounds per cubic inch. (round to the nearest pound). The height of th

weqwewe [10]

Answer:

640 pounds

Step-by-step explanation:

The rest of the question is the attached figure

So, the total volume = V(cylinder ) + V(cone)

The volume of cylinder = π r² h

The volume of cone = π r² h/3

Both of the cylinder and the cone have the same diameter = 14 inches

So, the radius = 14/2 = 7 inches

The height of the cylinder is 13 inches and the height of the cone is 9 inches.

So, The volume of cylinder = π r² h = π * 7² * 13 = 2,001.2 in³

And The volume of cone = π r² h/3 = π * 7² * 9/3 = 461.8 in³

So, the total volume = 2,001.2 + 461.8 = 2,463 in³

So, the total weight = 0.26 pounds per cubic inch times the total volume

= 0.26 * 2463 = 640.38 pounds

= 640 pounds (to the nearest pound)

6 0

3 years ago

Chen kept track of how many baskets were made in a basketball game. After 6 minutes, 5 baskets were made. How long did it take u

Mekhanik [1.2K]

Answer:

Assuming the same pace was kept, it would take 9.6 minutes.

Step-by-step explanation:

We can find this by setting up a proportion and then cross multiplying.

5 baskets/6 mins = 8 baskets/x mins

5 * x = 6 * 8

5x = 48

x = 9.6

5 0

3 years ago

PLEASE HELP QUICKLY!!!! What is the equation of the line with a slope of -3/4 that goes through the point (−6, 3)?

Yakvenalex [24]

Answer:

$y=-\frac{3}{4}x-\frac{3}{2}$

$y=-0.75x-1.5$

Step-by-step explanation:

step 1

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=-\frac{3}{4} \\point\ (-6,3)$

substitute

$y-3=-\frac{3}{4}(x+6)$

step 2

Convert to slope intercept form

$y=mx+b$

we have

$y-3=-\frac{3}{4}(x+6)$

Isolate the variable y

$y-3=-\frac{3}{4}x-\frac{9}{2}$

$y=-\frac{3}{4}x-\frac{9}{2}+3$

$y=-\frac{3}{4}x-\frac{3}{2}$

4 0

3 years ago

Would appreciate some math help !!

Nana76 [90]

Answer:

(D). $\frac{\sqrt{2} }{8}$ cis $\frac{47\pi }{36}$

Step-by-step explanation:

cis $\alpha$ × cis $\beta$ = cis ( $\alpha$ + $\beta$ )

~~~~~~~

$\frac{\sqrt{6} }{6}$ cis $\frac{5\pi }{9}$ × $\frac{\sqrt{3} }{4}$ cis $\frac{3\pi }{4}$ = ( $\frac{\sqrt{6} }{6}$ × $\frac{\sqrt{3} }{4}$ )[cis ( $\frac{5\pi }{9}$ + $\frac{3\pi }{4}$ )] = $\frac{\sqrt{2} }{8}$ cis $\frac{47\pi }{36}$

6 0

2 years ago

Alice separated her pictures into 3 piles. Each pile contained 9 pictures. How many pictures did she have in all? Write and solv

GarryVolchara [31]

27 total pictures. 9x3=27

4 0

4 years ago

Read 2 more answers