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3 years ago

Find the surface area of the prism 2ft 1ft 3ft and 2.2ft

1 answer:

5 0

<span>Which sequence is not equivalent to the others:

1. a reflection across the y axis, fallowed by a reflection across the x axis, then a 90 degree clockwise rotation about the origin

2. a 90 degree clockwise rotation about the origin and then a 180 degree clockwise rotation about the origin

3. a reflection across the x axis, fallowed by a 90 degree counterclockwise rotation about the origin,and a reflection across the x axis

4. a 90 degree counterclockwise rotation about the origin

</span>

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how is the formula for the area of a trapezoid related to the formula for the area of a parallelogram?

chubhunter [2.5K]

Answer:

They are related becasue if you find the area of a parallelogram then divide it by two then you have the area of a triangle

Step-by-step explanation:

3 0

3 years ago

4 A shelf at the grocery store

lesya [120]

Answer:

390

Step-by-step explanation:

500*.22=110

500-110=390

390

4 0

1 year ago

0.825167 rounded to the nearest ten-thousandth

antoniya [11.8K]

0.825200
(correct me if I’m wrong)

3 0

2 years ago

Find the exact value of cos theta, given that sin thetaequalsStartFraction 15 Over 17 EndFraction and theta is in quadrant II.

vova2212 [387]

Answer:

$cos \theta = -\frac{8}{17}$

Step-by-step explanation:

For this case we know that:

$sin \theta = \frac{15}{17}$

And we want to find the value for $cos \theta$ , so then we can use the following basic identity:

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

And if we solve for $cos \theta$ we got:

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

$cos \theta =\pm \sqrt{1-sin^2 \theta}$

And if we replace the value given we got:

$cos \theta =\pm \sqrt{1- (\frac{15}{17})^2}=\sqrt{\frac{64}{289}}=\frac{\sqrt{64}}{\sqrt{289}}=\frac{8}{17}$

For our case we know that the angle is on the II quadrant, and on this quadrant we know that the sine is positive but the cosine is negative so then the correct answer for this case would be:

$cos \theta = -\frac{8}{17}$

5 0

2 years ago

Please help anybody I need to fast please

elena55 [62]

Answer:
D. t = -1

step-by-step explanation:
that side should be 180 degrees and the whole is 360 but we are only measuring half
so (20t + 5) = 15t
-20t -20t
5 = -5t
/-5 /-5
-1 = t

4 0

1 year ago