A. -23
B. 9
C. -11
D. 3
Answer:
B
Step-by-step explanation:
To find f(- 2) substitute x = - 2 into f(x)
f(- 2) = - 2(- 2)³ + (- 2)² + 4(- 2) - 3
= - 2(- 8) + 4 - 8 - 3
= 16 + 4 - 8 - 3
= 9 → B
2. 6n-12
3. 12n-6
If Maya makes 5 bracelets in 2/3 hours, then she can make approximately 11 bracelets in 1.5 hours.
Given the parameter:
Maya makes 5 bracelets in 2/3 hours.
How many can she make in 1.5 hours?
To determine the number of bracelets Maya can make in 1.5 hours, we can set up a proportion.
Let 'x' be the number of bracelets in 1.5 hours
(5 bracelets) / (2/3 hour) = (x bracelets) / (1.5 hours)
Solve for x:
x × 2/3 = 5 × 1.5
x × 2/3 = 5 × 3/2
x × 2/3 = 5 × 3/2
2x/3 = 15/2
2x × 2 = 3 × 15
4x = 45
x = 45/4
x = 11.25
x ≈ 11 bracelets
Therefore, she can make approximately 11 bracelets in 1.5 hours.
Learn more about proportions at :brainly.com/question/29774220
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the center and a point on the sphere
any two points on the sphere and contains the center
any two points on the sphere and does not contain the center
Answer: Third option is correct.
Step-by-step explanation:
The diameter of a sphere joins any two points on the sphere including the center as these three lines must be collinear.
Diameter of sphere divide the sphere into two equal parts.
And Diameter is the longest chord.
So, the diameter of a sphere joins any two points and contains the center.
Hence, third option is correct.