3 years ago

HELP ASAP DUE TODAY

Mathematics

1 answer:

mrs_skeptik [129]3 years ago

4 0

I think the answer is sas

You might be interested in

A dome of a building is in the form of a hemisphere from inside it was whitewashed at the cost of rupees 4989.60 if the cost of

Luda [366]

Answer: $249.48\ m^2; 369.168\ m^3$

Step-by-step explanation:

Given

Cost of white-washing =Rs. 4989.60

Rate =20 per meter square

So, inside area of = $\dfrac{4989.60}{20}=249.48\ m^2$

The surface area of dome= $4\pi\ r^2=249.48$

$4\times 3.142\times r^2=249.48\\r^2=\frac{249.48}{4\times 3.142}=19.85\\r=4.455\ m$

The volume of air in the dome $V=\frac{4}{3}\pi r^3$

$V=\frac{4}{3}\cdot 3.142\cdot (4.45)^3\\V=369.17\ m^3$

6 0

3 years ago

What's 2+2?<br> A) 5<br> B) 2<br> C) 4<br> D) 10

Triss [41]

Answer:

C) 4

Step-by-step explanation:

I hope this helps :)

3 0

3 years ago

Round 639,121 to the nearest ten thousand.

VLD [36.1K]

Answer:

640,121

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

X²+2xy+y²=144, (x+y)³?

Bumek [7]

Answer:

The value of (x + y)³ is 1728.

Step-by-step explanation:

First, you have to find the value of x + y :

x² + 2xy + y² = 144

x² + xy + xy + y² = 144

x(x + y) + y(x + y) = 144

(x + y)(x + y) = 144

(x + y)² = 144

x + y = √144

x + y = 12

Next, the value of (x + y)³ :

(x + y) = 12³ = 1728

5 0

3 years ago

Read 2 more answers

Solve number 8 (geometry)

ANEK [815]

Answer:

x = 50

Step-by-step explanation:

the word bisects means that it cuts in half (this is how I understand it, not the official definition :D)

so that means

$\angle XAB =\angle BAY\\\\2x=100\\\\x=50$

3 0

3 years ago