Answer:
QR = 16 units
Step-by-step explanation:
Given that ΔPQR is right with hypotenuse QR
We can apply Pythagoras' theorem to find QR
QR² = 8² + (8)²
= 64 + 192
= 256
Take the square root of both sides
QR = = 16 units
Answer!
The perimeter would be the sum of the side lengths of the figure. Therefore, from the figure the perimeter would be the sum of the rectangle and half of the circle. We calculate as follows:
Perimeter = 2(pi)r / 2 + (2w + 2l)
Perimeter = pi(6/2) + 2(3) + 2(6)
Perimeter = 27.4 mm
Answer:
A, D, F
Step-by-step explanation:
A. True, because represents quadratic function (the greatest power of x is 2)
B. False, because this function is quadratic, so cannot be linear
C. False. The vertex of the parabola is at point (-7,4) (see diagram)
D. True. The axes of symmetry is the line x=-7 that passes through the vertex.
E. False. The y-intercept is at point x=0 and
F. True. The graph has the maximum at vertex, where
G. False. The graph of the parabola intersects the x-axis at two points (-9,0) and (-5,0), so x=-9 and x=-5 are two real solutions of the equation f(x)=0.
Answer:
D
Step-by-step explanation:
Using the rule of exponents
× ⇔ , then
3² × 3³
=
=
= 3 × 3 × 3 × 3 × 3
= 9 × 9 × 3
= 81 × 3
= 243 → D