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andrew-mc [135]
3 years ago
5

Which formula gives the area of a rectangle?

Mathematics
1 answer:
kherson [118]3 years ago
3 0
A rectangle b x h

Area of rectangle: A = bh
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What is the value of
vodomira [7]
For the order of operation use PEMDAS
Parenthesis
Exponent
Multiplication
Division
Addition
Subtraction

For memorizing the order you could say

Please
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8 0
4 years ago
Listed below are the summary statistics from samples of strontium-90 in baby teeth obtained from twelve Pennsylvania residents a
qaws [65]

Answer:

9.72

Step-by-step explanation:

s1 = 10.6383 ; s2 = 5.21289

x1 = 147.583 ; x2 = 136.417

n1 = 12 ; n2 = 12

df1 = n1 - 1 = 12 - 1 = 11

df2 = n2 - 1 = 12 - 1 = 11

The test statistic :

(x1 - x2) / sqrt[(sp²/n1 + sp²/n2)]

Pooled variance = Sp² = (df1*s1² + df2*s2²) ÷ (n1 + n2 - 2)

Sp² = ((11*10.6383) + (11*5.21289)) / 22 = 7.926

Test statistic, T* :

(147.583 - 136.417) / √(7.926 * (1/12 + 1/12))

11.166 / √(7.926 * (1/6)

11.166 / √1.321

11.166 / 1.1493476

T* = 9.7150766

Test statistic = 9.72

5 0
4 years ago
Which expression is equivalent to (3x^2-7)?
Musya8 [376]

Answer:

The correct answer is third option

(10x² - 4) - (7x² + 3)

Step-by-step explanation:

From the given option we get the correct answer is  third option.

(10x² - 4) - (7x² + 3)

<u>Check the correct answer</u>

(10x² - 4) - (7x² + 3) = 10x² - 4 - 7x² - 3)

 = 10x² - 7x² - 4 - 3 = 3x² - 7

Therefore the correct answer is third option

(10x² - 4) - (7x² + 3)

4 0
3 years ago
Read 2 more answers
Help from 1-3 please!
Troyanec [42]
1. The line goes to the left because there was a fee.
2. You would plot the dot in between the 7 and 8 line.
B. $68, $67, and $67.86
C. Three
3. x<50
4 0
3 years ago
Solve for x. -1/2 (x+5) = 2x -3/2
Pani-rosa [81]

Answer is a Decimal: x=-0.4

8 0
3 years ago
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