12 bro it even says to follow the order of operations. If there is only addition and subtraction you just go from left to right. Same with if there is only multiplication and division.
Take the square root of both sides to solve and you get a= 0.4,-0.4
First we calculate 20% of the price:
20% of 30$ is 0.2*30$=6$.
Then we subtract 6$ (that is 20% of the price) from 30$, and get 24$.
Thus, the sale price is 24$
Answer: Whole numbers are all natural numbers including 0, 1, 2, 3, 4…
Step-by-step explanation: Integers include all whole numbers and their negative counterpart -4, -3, -2, -1, 0,1, 2, 3, 4,…
thy could either be positive or negative
The value of x is 21√2/2
The correct option is (A)
<h3>What is Trigonometry?</h3>
Trigonometry is a branch of mathematics that studies relationships between the sides and angles of triangles.
In triangle having angle 60.
sin 60 = P/ 7√3
√3/2= P/7√3
2P= 21
P= 21/2
Now again
cos 45= 21/2/x
1/√2 = 10.5/x
x= 21√2/2
Learn more about trigonometry here:
brainly.com/question/26719838
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