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1 year ago

Giving points and brainiest

Mathematics

1 answer:

ziro4ka [17]1 year ago

5 0

Answer:

Step-by-step explanation:

you take all sides and add it up

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Solve for π in S=2πrh

Semmy [17]

2πrh= S

π = S/(2rh)
the answer to the question

3 0

2 years ago

HELP!!! The graph is at the top! Will mark as brainliest answer!!

Alex777 [14]

Answer:

The value of BEF = 36°

Step-by-step explanation:

Given:

Angle AED = 90°

Angle BEF = 3x°

Angle CEF = 54°

Find;

The value of BEF

Computation:

We know that;

Angle AED = Angle BEC (Vertical opposite angle)

So,

Angle AED = Angle Angle BEF + Angle CEF

90 = 3x + 54

3x = 90 - 54

3x = 36

x = 36 / 3

x = 12

The value of BEF = 3x

The value of BEF = 3(12)

The value of BEF = 36°

4 0

2 years ago

Five minus 6 times a number is equal to -11 plus 2 times the number

zepelin [54]

Answer:

No its not equal

Step-by-step explanation:

5 0

2 years ago

Given z1 = 1+i and z2 = 2+3i.

Margaret [11]

Answer:

(a) $w=2+5i-6=-4+5i$

Multiplicative inverse of w will be $\frac{1}{-4+5i}$

(B) As w is same as the product of $z_1\ and\ z_2$

So there multiplicative inverse will also be same

Step-by-step explanation:

We have given two complex numbers

$z_1=1+i$ and $z_2=3+2i$

(a) First we have to find $w=z_1z_2$

So $w=(1+i)(2+3i)=2+3i+2i+6i^2=2+5i+6i^2$

As we know that $i^2=-1$

So $w=2+5i-6=-4+5i$

Multiplicative inverse :

It is that number when multiply with the number which we have have to find the multiplicative inverse gives result as 1

So multiplicative inverse of w will be $\frac{1}{-4+5i}$

Because when we multiply $-4+5i$ with $\frac{1}{-4+5i}$ it gives result as 1

(b) As w is same as the product of $z_1\ and\ z_2$

So there multiplicative inverse will also be same

4 0

2 years ago

Karen had 200 after spending y pesos on a notebook,she bought 4 colored pens with the rest of her money,what was the price of ea

pickupchik [31]

Answer:

30 pesos

Step-by-step explanation:

Given

Had 200 pesos originally
spends 'y' pesos on a notebook
Bought 4 colored pens with the rest of the money

Solving

Let money of the pen = x, money of notebook = y
4x + y = 200
4x + 80 = 200
4x = 120
x = 30 pesos

8 0

2 years ago