Answer:
Axis of symmetry is x = -4
Step-by-step explanation:
h(x)= 5x^2+40x+ 64
Use the formula for axis of symmetry: x = -b/(2a)
Here, a = 5, b = 40, c = 64
so
x = -40/(2*5) = -40/10 = -4
Axis of symmetry is x = -4
B - 3/4 = 7/10
add 3/4 to both sides to isolate the b
b = 7/10 + 3/4
b = 28/40 + 30/40
b = 58/40
b = 1 18/40
b = 1 9/20
The value of Sin(a) suppose that Cos B = 0.68 in which case, a + B = 90° is; 0.68.
<h3>Trigonometry</h3>
First, when we have two angles, whose sum equals, 90°.
In essence, Since the algebraic sum of angles A and B is 90°;
By trigonometric identity;
Where; (90 - A) = B.
Therefore; Sin A = Cos B = 0.68.
Read more on trigonometry;
brainly.com/question/20519838
-mnp(3m - 5n + 7p) =
-3m^2np + 5mn^2p - 7mnp^2 <==
Answer: a) 30, b) 120
Step-by-step explanation:
Since we have given that
Let the number of points Scored by Dwayne be 'd'.
Number of points in the last basket ball game = 55 points
According to question, we get that

Let the number of points that Chris's score be 'c'.
Number of points Lebron scored = 45
According to question, number of points scored by Chris is given by

a. How many points did Chris score during the game?
c = 30
b. If these are the only three players who scored, what was the team’s total number of points at the end of the game?

Hence, a) 30, b) 120