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xxMikexx [17]
3 years ago
10

Write as a numeral 1,000+100+20+1​

Mathematics
2 answers:
Rashid [163]3 years ago
7 0

Answer:

1121

Step-by-step explanation:

Add them together

never [62]3 years ago
6 0

Answer:

The answer is 1,121.

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Pedro did 1,626 hits and ricky did 1,056. Can you please help me with my question?

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5 tenths plus 7 thousandths equals how many thousandths
elixir [45]
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Simply 3 26/27 + 2 3/4 + 15 1/9
cupoosta [38]
1) 3+2+15=20
2) 3/4= 27/36  1/9=4/36
3) 27/36+4/36=31/36
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6 0
3 years ago
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(2 points) An article in the Washington Post on March 16, 1993 stated that nearly 45 percent of all Americans have brown eyes. A
lara31 [8.8K]

Answer: a) z=1.43

b) 0.1528

Step-by-step explanation:

The given set of hypothesis :

H_0:p=0.45

H_a:p\neq0.45

Since the alternative hypothesis H_a is two-tailed , so we perform two-tailed test.

Also, it is given that : A random sample of n=76 Americans found 28 with brown eyes.

Sample proportion: \hat{p}=\dfrac{28}{76}=0.3684

a) The z-statistic would be :-

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

\Rightarrow\ z=\dfrac{0.3684-0.45}{\sqrt{\dfrac{0.45(1-0.45)}{76}}}=-1.4299121397\approx-1.43

b) P-value for two-tailed test = 2P(Z>|z|)= 2P(z>|-1.43|)

=2P(z>1.43)

=2(1-P(z≤1.43)

=2-2P(z≤1.43)

= 2-2(0.9236)[Using standard z-table]

= 2-1.8472=0.1528

Hence,  the P-value of the test= 0.1528

6 0
3 years ago
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