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dexar [7]
3 years ago
10

Round these numbers to the nearest 1000 a) 45 678 b) 24 055 c) 50 505​

Mathematics
2 answers:
ELEN [110]3 years ago
8 0

Answer:

A. 46,000

B. 24,000

C. 51,000

Step-by-step explanation:

Follow the rule, 5 or over round up.

Cerrena [4.2K]3 years ago
5 0

Answer:

Rounding to the nearest hundred ;

a) 45678 —> 45700

b) 24055 —> 24100

c ) 50505—> 50500

I hope I helped you^_^

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OLEGan [10]
Let the unknown side be "z" inches
Through pythagoras:
{12}^{2}  +  {z}^{2}  =  {20}^{2}
Because the square of the two sides add up to the square of the hypotenuse in a right triangle.

This means that
{z }^{2}  = {20}^{2}  -  {12}^{2}
{z}^{2}  = 400 - 144 = 256
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3 years ago
To save money, a local charity organization wants to target its mailing requests for donations to individuals who are most suppo
mars1129 [50]

Answer:

The 80% confidence interval for difference between two means is (0.85, 1.55).

Step-by-step explanation:

The (1 - <em>α</em>) % confidence interval for difference between two means is:

CI=(\bar x_{1}-\bar x_{2})\pm t_{\alpha/2,(n_{1}+n_{2}-2)}\times SE_{\bar x_{1}-\bar x_{2}}

Given:

\bar x_{1}=M_{1}=6.1\\\bar x_{2}=M_{2}=4.9\\SE_{\bar x_{1}-\bar x_{2}}=0.25

Confidence level = 80%

t_{\alpha/2, (n_{1}+n_{2}-2)}=t_{0.20/2, (5+5-2)}=t_{0.10,8}=1.397

*Use a <em>t</em>-table for the critical value.

Compute the 80% confidence interval for difference between two means as follows:

CI=(6.1-4.9)\pm 1.397\times 0.25\\=1.2\pm 0.34925\\=(0.85075, 1.54925)\\\approx(0.85, 1.55)

Thus, the 80% confidence interval for difference between two means is (0.85, 1.55).

3 0
3 years ago
What is the answer to 36/(9-4)??
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Answer:

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Step-by-step explanation:

You first have to subtract 4 from 9, because it is in the parentheses. The answer is 5, so you have 36/5, which equals 7.2

6 0
4 years ago
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5 0
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Which expressions can have the value of 9/20
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Answer:

9 DIVIDED BY 20 THAT IS BASICALLY AN EXPRESSION!

Step-by-step explanation:

6 0
3 years ago
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