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AlladinOne [14]
3 years ago
13

Find the area of a circle use 3.14

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
5 0

Answer:

12076.28

Step-by-step explanation:

just multiply pi times the radius times 2

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Use a calculator to evaluate 2^19 to the nearest ten thousandth.
Kitty [74]

Answer:

≈ 520 000

Step-by-step explanation:

2¹⁹=  524 288 ≈ 520 000

6 0
3 years ago
Can someone please❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️ help me with this ASAP❗️❗️❗️❗️❗️❗️❗️
makkiz [27]

Tip:

draw a diagonal and compare triangles ;)

4 0
3 years ago
the length of a rectangle exceeds its width by 6 inches and the area is 40 square inches. What are the length and width of the r
Lorico [155]

Classic Algebra and its unnecessarily complicated sentence structure. As you may have probably known, Algebra has its own "vocabulary set".


"the length of a rectangle exceeds its width by 6 inches" -> length is 6 in. longer than width -> l= w + 6


Since we're solving for the length and width, let's give them each variables.

length = l = w+6

width = w


The next bit of information is "the area is 40 square inches"

Applying the formula for the area of a rectangle we can set up:

l x w = 40

replace "l", or length, with it's alternate value.

(w+6) x w = 40

distribute

w^{2} + 6w = 40

subtract 40 from both sides

w^{2} + 6w - 40 = 0

factor

(w - 4)(w + 10) = 0

solve for w

w= 4, or -10


So great, we have 2 values; which one do we choose? Since this problem is referring to lengths and inches, we will have to choose the positive value. There is not such thing as a negative distance in the real world.


We now have half of the problem solved: width. Now we just need to find the length which we can do but substituting it back into the original alternate value of l.


l = w + 6

w=4

l = 4 + 6 = 10


The length is 10 in. and the width is 4 in. Hope this helps!

8 0
3 years ago
I really need help please
anastassius [24]

9514 1404 393

Answer:

  60

Step-by-step explanation:

The minimum number required is the least common multiple (LCM) of 15 and 4. The numbers 15 and 4 have no common factors, so their LCM is their product.

  15×4 = 60 strands are required

6 0
2 years ago
Yesterday, Eddy ran 26.2 miles.
Romashka [77]

Answer:

Step-by-step explanation:

10% of 26.2 miles = 0.10×26.2 miles = 2.61 miles

4 0
3 years ago
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