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coldgirl [10]
3 years ago
13

Plzz help pythagorean theorem

Mathematics
2 answers:
VLD [36.1K]3 years ago
8 0

Answer:

very easy 65inches

Step-by-step explanation:

follow me

puteri [66]3 years ago
4 0
144 inches



Explanation:


a^2+b^2=c^2

63^2+16^2=c^2

256+3969= 4225

Then you find the square root of 4225 which is 65


So you do 16+63+65
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Helppppppppppppp. a and b partttt​
PilotLPTM [1.2K]

Answer:

a) 220.17 cm

b) 2127.12 cm²

Step-by-step explanation:

perimeter = circumference

it is the sum of the inner and the outer arc and the 2 side lines of 25.

we know a full circle has 360 degrees. but we only look at a segment of a circle of 150 out of the total of 360 degrees.

the circumference of a circle is

C = 2×pi×r

the 150 degree part is then

C = 2×pi×r×150/360 = 2×pi×r×15/36 = pi×r×15/18 =

= pi×r×5/6

the radius of the inner circle is 20.

=>

Ci = pi×20×5/6 = pi×50/3

the radius of the outer circle is 20 + 25 = 45

Co = pi×45×5/6 = pi×75/2

so, the total perimeter/ circumference is

C = Ci + Co + 25 + 25 = pi×50/3 + pi×75/2 + 50

= pi×100/6 + pi×225/6 + 50 = pi×325/6 + 50 =

= 220.17 cm

the area of the shaded shape is the area of the large circle segment minus the area of the small circle segment.

the area of a circle is

A = pi×r²

the 150 degree part is then

A = pi×r²×150/360 = pi×r²×5/12

so, for the inner circle that is

Ai = pi×20²×5/12 = pi×400×5/12 = pi×100×5/3 = pi×500/3

for the outer circle that is

Ao = pi×45²×5/12 = pi×2025×5/12 = pi×10125/12 =

= pi×3375/4

so, the total area of the shaded shape is

A = Ao - Ai = pi×3375/4 - pi×500/3 = pi×(10125-2000)/12 =

= pi×8125/12 = 2127.12 cm²

4 0
3 years ago
A lotion is made from an oil blend costing $1.50 per ounce and glycerin costing $1.00 per ounce. Four ounces of lotion costs $5.
yanalaym [24]
X-ounces of an oil blend,
y - ounces of glycerin
x + y = 4    ⇒   y = 4 - x
1.5 x + y = 5.50
1.5 x + 4 - x = 5.50
0.5 x = 5.50 - 4
0.5 x = 1.50
x = 3
y = 4 - 3 = 1
There are 3 ounces of an oil blend and 1 ounce of glycerin.
3 0
3 years ago
A sample of 40 people owned an average of 1.35 hats. It is known from a previous study that the population standard deviation of
FrozenT [24]

Answer:

(1,155, 1.545).

Step-by-step explanation:

From Normal distribution tables the z score for 95% CI  = 1.96.

Confidence Interval

= 1.35 +/- 1.96 * 0.63/√40

=  1.35 +/- 0.195

=  (1,155, 1.545).

3 0
3 years ago
(1/2y-50)(3/5y+10) what is the answer?
GenaCL600 [577]

The answer is 3/10y^2 - 25y - 500. Glade I could help!

3 0
3 years ago
The line x = 6 is:<br> A. Cannot be determined<br> B. Horizontal<br> C. Neither<br> D. Vertical
jeka94

Answer:

Vertical

Step-by-step explanation:

Vertical line crossing the x-axis at 6. It does not cross the y-axis.

6 0
4 years ago
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