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forsale [732]
3 years ago
5

Find the area of the triangle with 12, 15, and 105°

Mathematics
1 answer:
Damm [24]3 years ago
7 0

Answer:

A≈86.93m²

Step-by-step explanation:

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Plz answer i suck at math :)
MatroZZZ [7]

Answer:

4.08

Step-by-step explanation:

26.08 +(-6)²*(3.4-8.9)÷9

parenthesis first

26.08+36*(-5.5)÷9

then multiplication

26.08-198÷9

division

26.08-22

addition or subtraction

4.08

7 0
3 years ago
Read 2 more answers
The formula for the circumference of a circle is C = 2nr. Find the circumference of a
Sholpan [36]

Step-by-step explanation:

circumference = 2\pi \: r \\ C = 2 \times 3.14 \times ( \frac{4}{2} ) \\ C = 12.56 \: ft

7 0
2 years ago
A researcher was interested in comparing the salaries of female and male employees of a particular company. independent random s
Aneli [31]

Answer:

Based on  given data, we can say with 95% confidence that the female employees at this company average between $110 less and $10 less per week than the male employees.

Step-by-step explanation:

Sample 1 for female

Sample 2 for male

Confidence = 90%

Difference in mean weekly salary of all female employees and the mean weekly salary of all male employees  = µ₁- µ₂

So based on above given data, we can say with 95% confidence that the female employees at this company average between $110 less and $10 less per week than the male employees.

5 0
3 years ago
In September, a greeting card company's total profit was 22% less than it was in august. The total profit for the two months was
Trava [24]
Profit for August: x
Profit for September: x - 22%x
Total Profit for August & September: $689,000

x + x - 22% x = 689,000

2x - .22x = 689,000
1.78x = 689,000
x = 689,000/1.78
x = 387,078.65

August Profits: $387,078.65
September Profits: 387,078.65 - (22%)(387,078.65) = 387,078.65 - 85,157.30 = 301,921.35

August Profits: $387,078.65

September Profits
$301,921.35
5 0
3 years ago
Find the common difference of the arithmetic sequence -3, -9, -15
eduard

Answer:

they are subtracting 6 from each number

6 0
3 years ago
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