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3 years ago

Work out the angle marked x in each diagram you must show your working

Mathematics

1 answer:

OverLord2011 [107]3 years ago

6 0

Anwser: 41°

Okay so every triangle is 180° degrees in total.

We need to find the angle of x in the triangle BDC.

We know that the angle of x is 180 - ( x + 15)

We also have another triangle named BAD

Which angles are 90 + 56 + x

the angle of D in the triangle BDC is 180 -58 = 124

So 124 + 15 = 139

180 - 139 = 41

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The diagram shows a circle inscribed in a square.

beks73 [17]

Answer:

Step-by-step explanation:

first lets find the area of the square

A=l*w

12*12=144 m^2

then lets find the are of the circle

A=pi*r^2

A=3.14*(d/2)^2

the diameter of the circle is 12m

A=3.14*(12/2)^2

A=3.14*(6)^2

A=3.14*36

A=113.04 m^2

Now, lets subtract the area of the circle form the area of the square

144-113.04= 30.96 m^2

So, the answer is A

5 0

3 years ago

Which expression is equivalent to(2^3)^-5

Nady [450]

Answer:

hope this helps if not im sorry

Step-by-step explanation:

(2^3)^5

=2^(3*5)

= 2^15

3 0

3 years ago

Find the missing dimension of the prism

Andrews [41]

<em>X = 2 cm</em>

Volume = Bh= 8×5×1/2×X= 80

X = 80/20 = 4

6 0

3 years ago

What’s the answer to this? I need to do this for extra credit and I have no idea what this is

sergiy2304 [10]

9514 1404 393

Answer:

Step-by-step explanation:

As with any evaluation problem, take it step by step according to the order of operations.

The first thing you need to do here is compute a#b.

The given definition can be simplified a bit for evaluation purposes:

a#b = a²b -ab² = ab(a -b)

Then for a=3 and b=-2, you have ...

(3)#(-2) = (3)(-2)(3 -(-2)) = -6(5) = -30

Now, you are in a position to evaluate the expression you're asked for.

$\dfrac{(a\#b)^2}{15-(a\#b)}=\dfrac{(-30)^2}{15-(-30)}=\dfrac{900}{45}=\boxed{20}$

4 0

3 years ago

Need help!!!! Asap I’ll Mark Brainly

antiseptic1488 [7]

Answer:

I think 9 and 12 are paraellograms. the others are not paraellograms. dunno if im right. but I tried my best

Step-by-step explanation:

7 0

3 years ago