X + x + 2 + x + 4 + x + 6 + x + 8 + x + 10 + x + 12 + x + 14 + x + 16 = 1935
9x + 72 = 1935
9x = 1863
X=207
So the first 9 consecutive odd integers are 207, 209, 211, 213, 215, 217, 219, 221, 223.
The next 9 consecutive odd integers are: 225 + 227 + 229 + 231 + 233+ 235+ 237 + 239 +241= 2097.
Answer:x=2
Step-by-step explanation:
Input interpretation:
solve 2 x = 4 for x
Result:
x = 2
The instantaneous rate of change of the function f(x) = −4x² − 3x + 1 at the point x = -3 is 21.
<h3>What is the instantaneous rate of change of the function at the given point?</h3>
The instantaneous rate of change is simply the change in the derivative value at a specific point.
Given the data in the question;
- f(x) = −4x² − 3x + 1
- Point x = -3
To determine the instantaneous rate of change of the function, first find the derivative of the function.
f(x) = −4x² − 3x + 1
Applying sum rule, with respect to x
d/dx[ -4x² ] + d/dx[ -3x ] + d/dx[ 1 ]
[ 2 × -4x¹ ] + [ 1 × -3x⁰ ] + d/dx[ 1 ]
[ -8x ] + [ -3 ] + d/dx[ 1 ]
-8x - 3 + d/dx[ 1 ]
Differentiate using constant rule
-8x - 3 + [ 0 ]
-8x - 3
f'(x) = -8x - 3
Next, plug x = -3 into the derivative and simplify.
f'(x) = -8x - 3
f'(-3) = -8(-3) - 3
f'(-3) = 24 - 3
f'(-3) = 21
Therefore, the instantaneous rate of change of the function f(x) = −4x² − 3x + 1 at the point x = -3 is 21.
Learn more about instantaneous rate of change here: brainly.com/question/28122560
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Answer:
11 feet
Step-by-step explanation:
This is a right triangle trig problem with a little geometric twist to it. The angle of depression. If we drew this triangle and the person at the top of it and then drew in a horizontal line from his line of vision, this line of vision is parallel with the ground. The hypotenuse (escalator, here) serves as the transversal cutting these parallel lines. That means that a lot of angle congruencies exist. The angle of depression is alternate interior with the base angle of the triangle (the angle that is NOT the right angle, that is) so that makes them congruent. Therefore, we have that base angle measuring 42.51 degrees (this is the reference angle) and the length of the hypotenuse. We are looking for the height of the triangle, which is also the side across from the reference angle. The trig ratio we need to solve this has to involve the reference angle, the hypotenuse, and the side across from the reference angle. That is the sin ratio. Setting up to solve for the side across from the angle:
Solving for y:
16 sin(42.51) = y
Do this on your calculator in degree mode to get that
y = 10.8 feet, or rounding, y = 11
Answer:
Same side interior angles
Step-by-step explanation:
Same side interior angles are interior angles and on the same side. Sorry don't know how to better explain.