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elena55 [62]
3 years ago
14

Which will be the digit in ONE’S place in multiplication 3x5x7x9

Mathematics
2 answers:
Harman [31]3 years ago
8 0

Answer:

5

Step-by-step explanation:

3x5x7x9=945

9 is in the hundreds place

4 is in the tens

which means 5 must be in the ones

mina [271]3 years ago
6 0

Answer:

5

Step-by-step explanation:

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Dilating a triangle changes the size of the triangle but does not change its shape. true or false?
____ [38]
<h3><u>Answer;</u></h3>

The correct answer<em> </em><em><u>is true</u></em>

<h3><u>Explanation;</u></h3>
  • <u>Dilation</u> is a type of transformation which stretches and reduces the size of the original figure.
  • A dilation has a center of dilation and a dilation scale factor. If the scale factor is less than one then the original size will shrink, and if the scale factor is greater than one then the figure will increase in size.
  • Dilation transformation does not alter the shape of a figure but  alters the size by making it bigger or smaller.

6 0
2 years ago
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3/4(2x-6)-2(1/2x+1)-1+5x
OlgaM077 [116]

Answer:

Distribute:

=(

3

4

)(2x)+(

3

4

)(−6)+(−2)(

1

2

x)+(−2)(1)+−1+5x

=

3

2

x+

−9

2

+−x+−2+−1+5x

Combine Like Terms:

=

3

2

x+

−9

2

+−x+−2+−1+5x

=(

3

2

x+−x+5x)+(

−9

2

+−2+−1)

11

2

x+

−15

2

Step-by-step explanation:

6 0
3 years ago
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A popular chain of superstore makes 30.479×10730.479×107 dollars in profit each year. One of its store makes 210.2×104210.2×104
Mandarinka [93]

<span>(SAT Prep) In the given figure, the reflex angle ∠DOB has measure of 3.5</span>y<span> while the measure of ∠AOD is </span>y. Find the measure of the non-reflex ∠DOB in degrees.
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2 years ago
What is the answer to 1/10 + 1/6
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1/10 + 1/6 = 4/15
4/15 is the answer
8 0
2 years ago
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A study published in Psychiatry Research states that 62% of autistic children are left-handed.[12]
nordsb [41]

Answer:

The pvalue of the test is 0.7188 > 0.05, which means that there is not enough statistical evidence based on the sample to dispute the results of the study published in Psychiatry Research.

Step-by-step explanation:

Test if there is enough statistical evidence based on the sample to dispute the results of the study published in Psychiatry Research:

This means that at the null hypothesis we test if the proportion is 62%, that is:

H_0: p = 0.62

At the alternate hypothesis, we test if the proportion is different from 0.62, that is:

H_a: p \neq 0.62

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample

62% is tested at the null hypothesis:

This means that \mu = 0.62, \sigma = \sqrt{0.62*0.38}

When a random sample of 26 autistic children were observed, 17 were found to be left-handed.

This means that n = 26, X = \frac{17}{26} = 0.6538

Value of the test statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{0.6538 - 0.62}{\frac{\sqrt{0.62*0.38}}{\sqrt{26}}}

z = 0.36

Pvalue of test and decision:

The pvalue of the test is the probability of a proportion that differs from the mean by at least 0.6538 - 0.62 = 0.0338, which is P(|z| > 0.36), which is two multiplied by the pvalue of z = -0.36

Looking at the z-table, z = -0.36 has a pvalue of 0.3594

2*0.3594 = 0.7188

The pvalue of the test is 0.7188 > 0.05, which means that there is not enough statistical evidence based on the sample to dispute the results of the study published in Psychiatry Research.

4 0
2 years ago
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