Without graphing, determine whether the parabola -2(3x + 5)(6 - x) opens up or down and ... Use the shortcut to write the equation for the axis of symmetry and find the ...

Step-by-step explanation:

5 0

2 years ago

Find the perimeter of the quarter-circle. Give your answer to the nearest whole number.

Bezzdna [24]

Answer:

The perimeter of the quarter-circle is 200 cm.

Step-by-step explanation:

Given that the angle of quarter-circle is 90°. So using Length of Arc formula, you are able to find the length of curve :

$arc = \frac{θ}{360} \times 2 \: \pi \: r$

Let r be radius = 56 cm,

Let θ = 90°

$arc = \frac{90}{360} \times 2 \times\pi \times 56$

$= \frac{1}{4} \times 2 \times \pi \times 56$

$= \frac{1}{2} \times \pi \times 56$

$= 28\pi \: cm$

We have already found the arc. Next we have to add up together to find the perimeter :

$p = 56 + 56 + 28\pi$

$p = 112 + 28\pi$

$p = 200 \: cm \: (3s.f)$

6 0

2 years ago

Read 2 more answers

Name the property illustrated. 4 + 3 + 9 = 3 + 4 + 9 Yall please answer ASAP

sattari [20]

Answer:

true

Step-by-step explanation:

4+3+9=3+4+9

use the commutative property to rearrange the terms.

4+3+9=4+3+9

equality is true because both members are identical.

5 0

2 years ago

Sid lives 3 miles north and 8 miles west of school. What is the direct distance from Sid's house to school? ≈ 11 miles ≈ 5 miles

Fudgin [204]

Answer: 8.5 Miles

Pythagorean Theorem

$a^{2}$ + $b^{2}$ = $c^{2}$

5 0

2 years ago

Read 2 more answers