Step-by-step explanation:
( secA + 1)( sec A - 1)
Using the expansion
( a + b)( a - b) = a² - b²
Expand the expression
We have
sec²A + secA - secA - 1
That's
sec² A - 1
From trigonometric identities
<h3>sec²A - 1 = tan ²A</h3>
So we have the final answer as
<h3>tan²A</h3>
As proven
Hope this helps you
Answer:
There are multiple possibilities. One is there are 12 boys, and 16 girls. 12+16= 28 which is between 20 and 30. That would be 12:16, which can be simplified to 3:4. There is also 9 boys, and 12 girls. that would be 9:12, which can be simplified to 3:4. Also, 9 + 12 = 21, which is between 20 and 30.
Answer:
D
Step-by-step explanation:
repeat
Y = x
y = -2/3x + 5
x = -2/3x + 5
x + 2/3x = 5
3/3x + 2/3x = 5
5/3x = 5
x = 5 * 3/5
x = 15/5 reduces to 3
y = x
y = 3
so ur answer is (3,3)
<span><span>P=76,378</span><span>N=3,428+B</span><span>P=N+B</span><span>=3,428+B+B</span><span>=3,428+2B</span><span>=76,378</span><span>⟹76,378−3,428=2B</span><span>⟹B=<span><span>76,378−3,428</span>2</span></span></span><span>
Where P is total Profit, N is the profit from nuts and B is the profit from Bolts.
Now you know the profits for Bolts and Nuts.</span>
