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3 years ago

Did the greeks use erasers in geometric construction?

Mathematics

2 answers:

irina1246 [14]3 years ago

6 0

No. because they did not have them

Anika [276]3 years ago

5 0

Yes,the famous geometric construction a pair of compasses, an unmarked ruler, and (of course!) a pencil and an eraser.

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What is the solution of x+4/2x-1<0

Vikentia [17]

Answer:

$\large\boxed{ -4$

Step-by-step explanation:

$Domain:\ 2x-1\neq0\to x\neq\dfrac{1}{2}$

$\dfrac{x+4}{2x-1}$

$(x+4)(2x-1)=(x)(2x)+....=2x^2+...\to 2>0\\\\\text{therefore the parabola is op}\text{en up}$

$\text{Look at the picture.}$

$\dfrac{x+4}{2x-1}$

3 0

3 years ago

Read 2 more answers

Please Help!! Write the function I'm vertex form y = -x^2-2x+6 y=

balu736 [363]

Rewrite in standard form and use the form to find the vertex.

(1, 5)

(x - 1)^2 + 5

7 0

3 years ago

Louis wants to carpet the rectangular floor of his basement. The basement has an area of 1,176 square feet. The width of the bas

julia-pushkina [17]

Answer: 42 feet

Step-by-step explanation:

Let the length be x

Therefore, width = 2/3x

Area = Length × Width

Therefore, x × 2/3x = 1176

2/3x² = 1176

Divide both side by 2/3

x² = 1176 ÷ 2/3

x² = 1176 × 3/2

x² = 1764

x = ✓1764

x = 42

The length is 42 feet

6 0

3 years ago

Which of the equations is proportional if y is a function of X?

Taya2010 [7]

Answer:

y=4x

Step-by-step explanation:

it goes through 0,0 on my graph

6 0

2 years ago

Solve using trigonometry, find missing side

babymother [125]

Answer:

Step-by-step explanation:

1. sin 30 = x/16

x= 16 sin 30

x = 8

2. cos 60 = 22/x

x = 22/cos 60

x = 44

3. tan 45 = x/19

x = 19 tan 45

x= 19

4. tan 16 = x/13

x = 13 tan 16

x= 3.73

5. sin 54 = x/45

x = 45 sin 54

x= 36.41

6. sin 35 = z/23

z = 23 sin 35

z = 13.19

8 0

3 years ago