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MakcuM [25]
3 years ago
6

4 - 1 2/7 ANSWER ASAPPPPPPPPP

Mathematics
1 answer:
djverab [1.8K]3 years ago
3 0

Answer:

2.7 in decimal form and 2 7/10 in fraction form

the picture is kinda all over the place but you basically subtract 1 from 4 and turn 2/7 into a decimal by dividing 2 by 7 and subtracting that answer from 3 (from 4-1)

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2. Find the number of distinct triangles with c=11,b=7,B=18 a.0 b.1 c.2 d. cannot be determined
jok3333 [9.3K]
Answer: Choice C) 2

----------------------------------------------

Explanation:

Using the law of sines, we get
sin(B)/b = sin(C)/c
sin(18)/7 = sin(C)/11
0.0441452849107 = sin(C)/11
11*0.0441452849107 = sin(C)
0.4855981340177 = sin(C)
sin(C) = 0.4855981340177
C = arcsin(0.4855981340177) or C = 180-arcsin(0.4855981340177)
C = 29.0516679549861 or C = 150.948332045013
There are two possibilities for angle C because of something like sin(30) = sin(150) = 1/2 = 0.5

Those approximate values of C round to
C = 29.05 and C = 150.95

If C = 29.05, then angle A is
A = 180-B-C
A = 180-18-29.05
A = 132.95
Making this triangle possible since angle A is a positive number

If C = 150.95, then angle A is 
A = 180-B-C
A = 180-18-150.95
A = 11.05
making this triangle possible since angle A is a positive number

There are two distinct triangles that can be formed. 
One triangle is with the angles: A = 132.95, B = 18, C = 29.05
The other triangle is with the angles: A = 11.05, B = 18, C = 150.95
The decimal values are approximate
7 0
3 years ago
3. Find the volume of the pyramid.
Gnoma [55]

Answer:

916.11\:ft^{3}

Step-by-step explanation:

Volume of the hexagonal pyramid =  1/3\times (area\: of \: hexagonal\:base)\times height

Here sides of hexagonal base = 9 ft

So, Area of hexagon = 6\times \frac{\sqrt{3} }{4} a^{2}

6\times \frac{\sqrt{3} }{4} \times 9 \times 9

= 210.5

Height is given, 13 ft

So, volume = 1/3\times 210.5\times 13

= 916.11\: ft^{3}

<u>OAmalOHopeO</u>

5 0
3 years ago
rectangle has an area of 24 square units and a side length of 2 3/4 units. Find the other side length of the rectangle. Show you
slavikrds [6]

Answer:no

Step-by-step explanation:

the answer in decimal form would be 8.727273

5 0
3 years ago
Read 2 more answers
I need help! anyone know this?
xz_007 [3.2K]
Yeah, x= 7/2 and y= -5/2
Please mark as brainliest and I hope this helps
5 0
3 years ago
What is the approximate area of the circle shown below 9.4 cm
aivan3 [116]

Answer:

Step-by-step explanation:

A= πr²

A= 22/7 multiply by the radius.

Divide 9.4cm by 2.

Whatever you get is your answer. Now take the formula I have shown you above. Whatever you get is your answer.

6 0
3 years ago
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