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2 years ago

Assessment Practice 11. The rectangle has a perimeter of 86 yards. Which is its area?

Mathematics

1 answer:

Semenov [28]2 years ago

8 0

Answer:

460

Step-by-step explanation:

23+23=46. 20+20=40. 46+40=86. 23×20= 460

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The speed of one type of bullet is 200 meters per second. How long would it take the bullet to travel 5,000 meters?

Pie

It would take the bullet 25 seconds to travel 5,000 meters (:

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3 years ago

Which expression is equivalent to 4/9 times 7

11111nata11111 [884]

Answer:

4/9 * 7 =3.11111111

Step-by-step explanation:

4/9 * 7 =3.11111111

8 0

3 years ago

Read 2 more answers

4 cos²x – 1=0<br><br> What is the solution?

andreev551 [17]

Answer:

$x=\frac{\pi }{3}+2\pi n, n\in \mathbb{Z}$

$\:x=\frac{5\pi }{3}+2\pi n, n \in \mathbb{Z}$

$x=\frac{2\pi }{3}+2\pi n, n\in \mathbb{Z}$

$\:x=\frac{4\pi }{3}+2\pi n, n \in \mathbb{Z}$

$x=\frac{\pi}{3}+\pi n, n \in \mathbb{Z}$

$x=\frac{2\pi }{3}+\pi n, n\in \mathbb{Z}$

Step-by-step explanation:

$4\text{cos}^2(x)-1=0\\4\text{cos}^2(x)=1\\$

$cos(x)=\pm\sqrt{\frac{1}{4} }$

$cos(x)=\pm\frac{1}{2}$

So, when cos(x) is equal to

$\frac{1}{2} \text{ and } -\frac{1}{2}$ ?

For

$cos(x)=\frac{1}{2}$

We are talking about x = 60º and x = 300º, Quadrant I and IV, respectively. In radians:

$x=\frac{\pi }{3}+2\pi n, n\in \mathbb{Z}$

$\:x=\frac{5\pi }{3}+2\pi n, n \in \mathbb{Z}$

$x=\frac{\pi}{3}+\pi n, n \in \mathbb{Z}$

For

$cos(x)=-\frac{1}{2}$

We are talking about x = 120º and x = 240º, Quadrant II and III, respectively. In radians:

$x=\frac{2\pi }{3}+2\pi n, n\in \mathbb{Z}$

$\:x=\frac{4\pi }{3}+2\pi n, n \in \mathbb{Z}$

$x=\frac{2\pi }{3}+\pi n, n\in \mathbb{Z}$

6 0

3 years ago

X+4 over 3 = x+6 over 4

Gnesinka [82]

If you are asking to solve for x the answer is:
x = 2
Hope This Helps!!
:)

4 0

3 years ago

Read 2 more answers

PLEASEE HELPP WILL BRAINLIST Find the output when x = 0

atroni [7]

Answer:

output: 8

Step-by-step explanation:

since x=0, y would equal 8 and y is the output.

7 0

3 years ago