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aivan3 [116]
3 years ago
5

Shade the model to show the decimal 0.542

Mathematics
2 answers:
wel3 years ago
7 0
There is no model for us to shade in
Zolol [24]3 years ago
4 0
<span>Point out that we have seen examples of games and activities that involved the concepts of equality and inequality and which did not require the use of decimal symbolism. Discuss the need for these types of activities to develop conceptual understanding before symbols and rules are introduced. Then place the following transparency on the overhead which calls for the use of models for teaching rational numbers.

I probably did not help sorry:(   :)</span>
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If y = 12 x – 12, determine the value of y when x = –16.
GrogVix [38]

Answer:

Step-by-step explanation: y=180

4 0
3 years ago
COLOR THEME
Lelu [443]

Answer:

the correct answer is A. Because it shows the equal qualifient of the answer

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3 years ago
In 1990, 1000 adults were randomly selected and each was asked if they smoked, 300
Oduvanchick [21]

Answer:

 The proportion of smokers was higher in 1990 than in 2000

Step-by-step explanation:

Solution

Recall that,

The total number of sample 1 (n1) = 1000

Total  sample 2 number  (n2) = 2000

The number of favourable events (X1) = 300

The number of favourable events (X2) = 500

so,

p₁ = X₁/n₁ = 300/1000 = 0.3

p₂ = X₂/n₂ =500/2000 =0.25

α = 0.05

We are interested in testing the hypothesis.

The  hypothesis (Null) ....>  H₀ : p₁ = p₂

Alternate hypothesis------ > H₁ : p₁ > p₂

Thus,

P = X₁ + X₂/ n₁ + n₂

P =300 + 500/1000 +2000

P =800/3000

=0.2667

Now,

Z₀ = P₁ - P₂/√ P (1 -P) (1/n₁ + 1/n₂)

Z₀ =  0.3 - 0.25/√0.2667  (1 - 0.2667) (1/1000 + 1/2000)

Z₀ = 0.4999999999999999/√ 0.2667 (0.7333000000000001) (0.001 +0.0005)

Then,

Z₀ = 0.4999999999999999/√0.00029335666500000004

Z₀ = 2.9193

so,

zα/2 = z0.05/2 =z0.025

zα/2 = 1.6448536269514722

Now, we apply the decision rule:

Decision Rule: Reject the null hypothesis if the statistic value test is higher than the critical value 1.6448536269514722

The statistic value, 2.9193 is greater than the critical value 1.6448536269514722,  then we will reject the null hypothesis.

Therefore, the proportion of smokers was higher in 1990 than in 2000

3 0
2 years ago
In the number 340.79 , the 0 is in what place
kirill115 [55]

Answer:

units

Step-by-step explanation:

The zero (0) is in the units place.  unit = 1

4 0
3 years ago
Read 2 more answers
Write and solve a story problem for each method you can use to find decimal sums and differences.
Pavlova-9 [17]

Answer:

could you give me some story problems Plz

Step-by-step explanation:

6 0
3 years ago
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