3 years ago

4. $545 at 4% for 2 years. What is it

Mathematics

1 answer:

inna [77]3 years ago

7 0

U should try using phone math it shows work too

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Suppose an isosceles triangle abc has a=pi/4 and b=c=4. What is the length of a^2?

Zanzabum

The law of cosines states that, if $\alpha$ is the angle between sides b and c,

$a^2 = b^2+c^2-2bc\cos(\alpha)$

So, plugging our values, we have

$a^2 = 16+16-2\cdot 4\cdot 4\cdot\cos\left(\dfrac{\pi}{4}\right)$

This is equal to

$a^2 = 32-32\cdot\dfrac{\sqrt{2}}{2} = 32-16\sqrt{2}$

3 0

3 years ago

Which of the following statements correctly illustrate the addition property of equality?

liubo4ka [24]

Answer:

x - y + z = 8

2x +3y -z= -2

3x - 2y -9z = 9

Step-by-step explanation:

[1 - 1 1 8]

[2 3 -1 -2]

[3 -2 -9 9]

4 0

2 years ago

Evaluate The diagram below.<br> Given: straight lines AD and CE.<br> HELP ASAP‼️‼️

jenyasd209 [6]

Answer:

<CFD =62°

<AFB= 90°

Step-by-step explanation:

here you have a vertical angle, so to simply put it the answer on one side of the angle is the same answer for the opposite side of the angle. knowing this, angle <AFE is 62° and <CFD is on the opposite side making the angle the same(62°). the opposite angle of <AFB is <EFD which is 118° but both <AFB and <AFC equal 118° so you subtract 118° to <AFC degree which is 28° and you get 90°.

i hope this makes sense im not good at explaining. if anyone has a better explanation feel free to correct me.

6 0

3 years ago

9(3x+6)-6(7x-3)=12 solve and check

nignag [31]

X=4 is the answer to this

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10 months ago

Find the labeled angles

ipn [44]

Answer:

X = 25, Angles are 65 degrees

Step-by-step explanation:

3x-10 = x+40

2x=50

x=25

8 0

3 years ago