3 years ago

What is 2 3/5+ 1 4/5

Mathematics

1 answer:

Pavel [41]3 years ago

7 0

Answer:

4 2/5

Step-by-step explanation:

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The second hand on a clock is 8 \text{ cm}8 cm8, space, c, m long. What is the distance the tip of the second hand travels in 10

arsen [322]

Answer:

The distance the tip of the second hand travels in 10 minutes is 502 cm.

Step-by-step explanation:

Given : The second hand on a clock is 8 cm long.

To find : What is the distance the tip of the second hand travels in 10 minutes?

Solution :

The circumference of clock is $C=2\pi r$

The radius is r=8 cm

$C=2\times 8\times \pi$

$C=16\pi$

i.e. in 1 minute it cover $16\pi$

In 10 minutes it cover $16\pi\times 10$

In 10 minutes it cover $160\times 3.14$

In 10 minutes it cover $502.4$

Therefore, the distance the tip of the second hand travels in 10 minutes is 502 cm.

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3 years ago

Multiply the polynomials (a^2+3a-7) and (a+4)<br> simplify answer + show work

Anton [14]

= a^3 +3a^2-7a+4a^2+12a-28
=a^3 +7a^2+5a-28

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4 years ago

I need the answers to these questions please people on here?

Effectus [21]

2. 225
4. 25/36
6. 0.001
8. 8-20=-12
10. 34-16=18
12. 15/5=3^3=27
14. ?? confused...
16. 8
18. 11.5+4=15.5
20. 3(225)+10=675+10=685

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4 years ago

Brady has a 20 year fixed rate mortgage for $215,500 with monthly payments of 1,305.89.the annual interest rate is 4%. What is t

ExtremeBDS [4]

The total loan cost will be 27378.12

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3 years ago

What's 5x - 4x to the second power + 3 in standees form?

Pani-rosa [81]

(5x - 4x)² + 3

(5x - 4x)(5x - 4x) + 3

Simplify.

25x² - 20x² - 20x² + 16x² + 3

Add like terms.

(25x² - 20x²) + (-20x² + 16x²) + 3

Simplify.

5x² - 4x² + 3

Simplify once more.

x² + 3

~Hope I helped!~

5 0

4 years ago