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dolphi86 [110]
2 years ago
15

How to estimate to the nearest tens 671×32

Mathematics
1 answer:
aleksandrvk [35]2 years ago
8 0

20, 100

Step-by-step explanation:

You look at the tens column, in this case the numbers would be "7" in the "671" and the "3" in the "32". If you're rounding the tens column you look at the ones column and if the number is bellow 5 you round down, if its 5 nd over you round up. Since the number is 1 in the ones column that means the 7 will round down so it would be "670", for "32" the number is "2" (which is bellow 5) so we will round down again to "30". This will leave you with the equation 670×30 which is 20, 100.

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zmey [24]
20 inches is 400
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So 20+10+5=35
Which means 400+200+100= 700

So the frequency of a 35 inch string is 700 cycles per second
5 0
3 years ago
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cluponka [151]
The answer to the question is 1700
7 0
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determine whether the triangles are similar if so what is the similarity statement and the postulate or theorem used.
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3 years ago
Which statements are true about the trigonometric ratios of this triangle​
rosijanka [135]

Answer:

Options (1), (2), (3) and (4)

Step-by-step explanation:

By applying the sine and cosine rules in the given triangle,

sinθ = \frac{\text{Opposite side}}{\text{Hypotenuse}}

cosθ = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

cos(30°) = \frac{AC}{AB}

              = \frac{11\sqrt{3} }{22}

              = \frac{\sqrt{3}}{2}

sin(30°) = \frac{BC}{AB}

             = \frac{11}{22}

             = \frac{1}{2}

cos(60°) = \frac{BC}{AB}

              = \frac{11}{22}

              = \frac{1}{2}

sin(60°) = = \frac{AC}{AB}

              = \frac{11\sqrt{3} }{22}

              = \frac{\sqrt{3}}{2}

Options (1), (2), (3) and (4) are the correct options.

3 0
2 years ago
<img src="https://tex.z-dn.net/?f=%5Csqrt%5B-%5D%7B64%7D" id="TexFormula1" title="\sqrt[-]{64}" alt="\sqrt[-]{64}" align="absmid
Gemiola [76]
Answer: -8





Explanation:

-sqrt(64)

If 8 x 8 = 64, then the square root of 64 is 8.

Result: -8

3 0
3 years ago
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