A(n) = a1 + (n - 1) * d
A(n) = -3 + (n - 1) * -2.2
n = term to find
a1 = first term = -3
d = common difference = -2.2
we can already see that the first term is -3 <==
4th term..
A(4) = -3 + (4 - 1) * -2.2
A(4) = -3 + 3(-2.2)
A(4) = -3 - 6.6
A(4) = - 9.6 <== 4th term
10th term...
A(10) = -3 + (10 - 1) * -2.2
A(10) = -3 + 9 * - 2.2
A(10) = -3 - 19.8
A(10) = - 22.8 <===10th term
Answer:
∠ 6 = 45°
Step-by-step explanation:
∠ 6 and ∠ 7 are alternate angles and are congruent, thus
4x - 15 = x + 30 ( subtract x from both sides )
3x - 15 = 30 ( add 15 to both sides )
3x = 45 ( divide both sides by 3 )
x = 15
Thus
∠ 6 = 4x - 15 = 4(15) - 15 = 60 - 15 = 45°
we are given
graph of a quadratic function
Quadratic function:
Those function which has degree=2
we can write it as
![y=ax^2+bx+c](https://tex.z-dn.net/?f=%20y%3Dax%5E2%2Bbx%2Bc%20)
Since, the degree is 2
so, the shape of the curve will be parabolic
so, option-B.........Answer
<u>Answer-</u>
<em>The maximum number of watches that Samantha come by with her savings is </em><em>10</em><em>.</em>
<u>Solution-</u>
The amount of money Samantha has in her savings account = $1150
She wants to buy shirts and watches.
Cost of one shirt = $84
Cost of each watch = $99
Let she can buy maximum of x watches, so the net price of the watches is $99x.
Then,
![\Rightarrow 99x+84=1150\\\\\Rightarrow 99x=1150-84\\\\\Rightarrow 99x=1066\\\\\Rightarrow x=\dfrac{1066}{99}\\\\\Rightarrow x=10.77](https://tex.z-dn.net/?f=%5CRightarrow%2099x%2B84%3D1150%5C%5C%5C%5C%5CRightarrow%2099x%3D1150-84%5C%5C%5C%5C%5CRightarrow%2099x%3D1066%5C%5C%5C%5C%5CRightarrow%20x%3D%5Cdfrac%7B1066%7D%7B99%7D%5C%5C%5C%5C%5CRightarrow%20x%3D10.77)
As the number of watches can not be in fraction, so at most she can buy 10 watches.
Answer:
I just solved it in that attachment