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2 years ago

(Brainliest to the person that get its right)

Mathematics

1 answer:

oksian1 [2.3K]2 years ago

6 0

<h3>Answer: Choice B</h3>

c^2-2cd+d^2 = (c-d)^2

We can verify this with the following steps

(c-d)^2 = (c-d)(c-d)

(c-d)^2 = c(c-d) - d(c-d)

(c-d)^2 = c^2-cd-cd+d^2

(c-d)^2 = c^2-2cd+d^2

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Your neighbor needs to put a fence around her front yard and a seperate fence around her backyard. Her front yard is 65 feet lon

elena-14-01-66 [18.8K]

Front yard
65+65+45+45=220
Back yard
45+45+35+35=160
220+160=380
380 feet

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3 years ago

Consider this equation. cos(theta) = (-2√5)/5. If theta is an angle in quadrant II, what is the value of sin(theta)? NO LINKS!!!

vlada-n [284]

In second quadrant sin and cosec are positive

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

$\\ \tt\hookrightarrow sin^2\theta=1-(\dfrac{-2\sqrt{5}}{5})^2$

$\\ \tt\hookrightarrow sin^2\theta=1-\dfrac{20}{25}$

$\\ \tt\hookrightarrow sin^2\theta=\dfrac{5}{25}$

$\\ \tt\hookrightarrow sin\theta=\dfrac{\sqrt{5}}{5}$

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3 years ago

Find the LCM and HCF of 540 and 792.

AURORKA [14]

Your LCM is 11880 , and your HCF is 36

7 0

3 years ago

Find the area of the composite shape below.

arlik [135]

Answer: 1106.13 (2 decimal places)

Step-by-step explanation:

To work out the area of this composite shape you would have to put the two semi circles together to form a circle and work out the area of the circle (they have provided the radius which is 11in), then work out the area of the rectangle separately.

The formula for the area of a circle is πr^2 (pi x radius squared).

So when you put the numbers in the formula the area is πx11^2=380.1327111

Then to work out the area of the rectangle you would do base x height.

The height of the rectangle is the same as the diameter of the circle (the diameter is double the radius of a circle) which is 22in.

To find the area of the rectangle you do 22x33=726

So then to find the area of the whole shape you would have to add the area of the circle and the rectangle together.

726+380.1327111=1106.13 (2 decimal places).

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3 years ago

Which shows that a graph is shifted 4 units to the left and then 2 units up?

n200080 [17]

Answer choice A. The function moves left 4 units, and 2 units up.

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3 years ago