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ale4655 [162]
2 years ago
12

What is an appropriate estimate for 28,457 ÷ 638?

Mathematics
2 answers:
Goshia [24]2 years ago
7 0
44.6034482759..............
prisoha [69]2 years ago
5 0
44.6 is the answer, but the estimate is 45 since you round up from .5+
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For each of the functions below, indicate whether the function is onto, one-to-one, neither orboth. If the function is not onto
Karo-lina-s [1.5K]

Answer:

f_{1} :Z \rightarrow Z is one to one mapping, it is not onto mapping

Step-by-step explanation:

f_{1} :Z \rightarrow Z\\ f_{1} (x) = x^{3}

f₁(x) is one to one mapping

Let x, y \epsilon Z

f₁(x) = f₁(y):

x₁³ = y₁³

f₁(x) is not onto mapping

Example: If f₁(x) = 7,

x₁³ = 7

x_{1} = \sqrt[3]{7}

x₁ is not an element of Z

f_{1} :Z \rightarrow Z is one to one mapping, it is not onto mapping

5 0
2 years ago
Is 45 a multiple of 4? Explain your answer.<br> 50
poizon [28]

Answer:

No

Step-by-step explanation:

Because 4 cannat be mutiplyed  into 45

8 0
2 years ago
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uranmaximum [27]

Answer:

Step-by-step explanation:

so what you need to do is 112=16m+12b

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6 0
3 years ago
The polygons are similar. Solve for x.<br><br> scale factor from A to B = 3:5
Sonbull [250]

Answer:

9

Step-by-step explanation:

if scale factor is 3/5, then

(x+12):35=3:5, ⇒

\frac{x+12}{35} =\frac{3}{5}; x=21-12; x=9

3 0
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borishaifa [10]

Answer:

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Step-by-step explanation:

That was the step-by-step explanation.  <3

7 0
3 years ago
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