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denis23 [38]
3 years ago
9

Which shows the best estimate to use to find 43 × 78?

Mathematics
1 answer:
Over [174]3 years ago
4 0

Answer:

The best estimate for 43x78 is 40x80

Step-by-step explanation:

43 rounded to the nearest ten is 40.

78 rounded to the nearest ten is 80.  

The answer to 40x80 is 3200

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How do I simplify the n^-6*n^3 topic "Negative and Zero Exponents"
Alchen [17]
Since you’re multiplying n^-6 and n^3, you can add the exponents: -6+3 = -3

n^-6 * n^3 = n^-3

If you need to finish without having a negative exponent in your answer, then remember a negative exponent means that factor is on the wrong side of the fraction.

n^-3 = n^-3 / 1 = 1/n^3

when the factor moves to the other side of the fraction, the side of the exponent changes.
7 0
2 years ago
10kg 20kg 24kg ?kg plz answer this for me
luda_lava [24]

Answer:

27KG

Step-by-step explanation:

Mouse- M , Cat - C, Dog - D

M + C = 10 ----- (1)

M + D = 20 -------(2)

C + D = 24 --------(3)

(1) - (2) => C - D = -10 ---- (4)

(3) + (4) => 2C = 14

                => C = 7

Substitute C in (1)  => M + 7 = 10

                            => M = 3

Substitute M in (2) => 3 + D = 20

                            => D = 17

Therefore C + M + D = 7 + 3 + 17 = 27KG

3 0
3 years ago
What multiply by 60 give you a 100​
kari74 [83]

Answer: 1.6, but if your looking for rounding numbers, its 2. I suggest 1.6 though.

Step-by-step explanation: hope this helps :)

8 0
2 years ago
Read 2 more answers
11
Delvig [45]

Answer:

14C3 = 364

Step-by-step explanation:

3 0
3 years ago
Find the volume of the cone shown below!
Readme [11.4K]

Volume of the cone = 1/3 π r² h = 1/3 π (7)² (24) = 392π units³


Answer: (C) 392π units³

7 0
3 years ago
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