All categories

2 years ago

Please answer this question now correct

Mathematics

1 answer:

Natalka [10]2 years ago

3 0

Answer:

Step-by-step explanation:

cosine law

a²=b²+c²-2(bc)cos44 (c=20, b=15)

a²=15²+20²-2(15*20)cos44

a=√15²+20²-2(15*20)cos44

a=13.91

You might be interested in

What is 1,200,354,226,320 divided by 666,222,346

aleksklad [387]

1,200,354,226,320 divided by 666,222,346 is 1801.73216

6 0

3 years ago

Read 2 more answers

Plzzzzzzzzz helpppppppp meeeeeeeeee

dalvyx [7]

Answer:

spenca idk the answer g

5 0

3 years ago

Respuesta de (-0.5)²

Vladimir79 [104]

Answer:

0.25

Step-by-step explanation:

we have

$(-0.5)^2$

we know that

$-0.5=-\frac{1}{2}$

substitute

$(-\frac{1}{2})^2=(-\frac{1}{2})(-\frac{1}{2})$

Remember that

$(-1)(-1)=1\\(-1)(1)=(-1)$

$(-\frac{1}{2})(-\frac{1}{2})=\frac{1}{4}=0.25$

5 0

3 years ago

What is the exact area of a circle with a diameter of 18 feet

marin [14]

A = π r^2
A = 9^2 <span>π
</span>A = 81<span>π

if using </span>π = 3.14 then

A = 3.14 x 81 = 254.47 ft^2

answer: 81π ft^2 or 254.47 ft^2

hope that helps

6 0

3 years ago

Pls help me I kinda don’t get it.

suter [353]

A). Pi m

Explanation:

Arc length formula:

Arc length = (Ø/360°) * 2*Pi*r
Ø = given angle (degrees)
r = radius

Plug given numbers in:

(45°/360°)* 2* Pi * 4
This will give you the answer of Pi

4 0

3 years ago