The perimeter is the total length of all sides of the shape.

It is 1 meter + 1 meter + 2 meter + 2 meter = 6 meters

1 meter = 100 centimeter

6(100) = 600 centimeter

Hope this helps! :)

8 0

3 years ago

If sin square theta = 0.75, then cos =

sergeinik [125]

Answer:

$\cos\theta=\pm0.5$

Step-by-step explanation:

Given:

$\sin^2\theta=0.75$

To find $\cos\theta$

Using trigonometric relations for sums and differences of squares of the ratios.

We know:

$\sin^2\theta+\cos^2\theta =1$

Plugging in $\sin^2\theta=0.75$ in the above relation.

$0.75+\cos^2\theta =1$

Subtracting both sides by 0.75.

$0.75+\cos^2\theta-0.75 =1-0.75$

$\cos^2\theta =0.25$

Taking square root both sides.

$\sqrt{\cos^2\theta} =\sqrt{0.25}$

∴ $\cos\theta=\pm0.5$ (Answer)

6 0

3 years ago

HELP!!! Does anyone understand???????????

vesna_86 [32]

Answer:

4.0

observed time spent exerciseing: 4.5

predicted time:5.5

residual: 1

5.0

observed time spent exerciseing: 6.5

predicted time:5.0

residual: 1.5

7 0

3 years ago

HELP!! PLEASE, 3x/2 +2x/2=1+3x/2​

HELP!! PLEASE, 3x/2 +2x/2=1+3x/2