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babunello [35]
3 years ago
7

345+ 223 Use rounding or compatible numbers to estimate the sum

Mathematics
1 answer:
Mars2501 [29]3 years ago
8 0
I think it is 568 if I’m not mistaken
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What is matter in science​
Anettt [7]

Answer:

science makes you understand the world understand the living organisms understand electricity and understand chemical reactions which is one of the most important things to know in life

5 0
2 years ago
A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 404 gram setting. It
Nezavi [6.7K]

Answer:

There is no sufficient evidence to support the claim that the bags are underfilled

Step-by-step explanation:

We are given;

n = 27 bags

Sample mean;X = 402 gram

Population mean;μ = 404 gram

Variance = 676

We know that, standard deviation(σ) = √variance

Thus;

σ = √676

σ = 26

The hypotheses are;

Null hypothesis; H0: μ = 404

Alternative hypothesis; HA: μ < 404

Let's find the z-score from the formula;

z = (X - μ)/(√σ/n)

z = (402 - 404)/√(26/27)

z = -2.04

From the z-distribution table attached, we have a p-value of 0.02068

This is less than the significance value of 0.01 and thus we will reject the null hypothesis and conclude that there is no sufficient evidence to support the claim that the bags are underfilled

6 0
3 years ago
The coordinates of the vertices of a polygon are shown on the grid bel​
Nutka1998 [239]

Answer:

4

Step-by-step explanation:

4 0
2 years ago
Reduce 720/1080 little cunfused
Veronika [31]
To reduce a fraction, divide the numerator and the denominator equally until they reach the simplest whole number possible. 

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8 0
3 years ago
Read 2 more answers
How do i draw a decimal for example 0.26?
elixir [45]
First, you need convert the decimals into fraction

0.26 = 26/100 = 13/50

The next step would be drawing 50 small boxes on a piece of paper. Make it colorless.

The final stap would be giving 13 out of those 50 boxes with different color (such as black), and you're done

8 0
3 years ago
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