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3 years ago

Hi please help me with this please help me draw the graph pls

Mathematics

1 answer:

sukhopar [10]3 years ago

3 0

${\huge {\green{ \fbox{\pink{Answer}}}}} \\ \\$

A. 1) y ≤ x - 3

refer to the attachment

B. 2) y+2x>5

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3 years ago

What is 2 units left 2 units up and 4 units right if you start at 0,0

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Read 2 more answers

Prove that a triangle with the sides a - 1 cm to root under a

vivado [14]

Question is Incomplete, Complete question is given below.

Prove that a triangle with the sides (a − 1) cm, 2√a cm and (a + 1) cm is a right angled triangle.

Answer:

∆ABC is right angled triangle with right angle at B.

Step-by-step explanation:

Given : Triangle having sides (a - 1) cm, 2√a and (a + 1) cm.

We need to prove that triangle is the right angled triangle.

Let the triangle be denoted by Δ ABC with side as;

AB = (a - 1) cm

BC = (2√ a) cm

CA = (a + 1) cm

Hence,

${AB}^2 = (a -1)^2$

Now We know that

$(a- b)^2 = a^2+b^2 - 2ab$

So;

${AB}^2= a^2 + 1^2 -2\times a \times1$

${AB}^2 = a^2 + 1 -2a$

Now;

${BC}^2 = (2\sqrt{a})^2= 4a$

Also;

${CA}^2 = (a + 1)^2$

Now We know that

$(a+ b)^2 = a^2+b^2 + 2ab$

${CA}^2= a^2 + 1^2 +2\times a \times1$

${CA}^2 = a^2 + 1 +2a$

${CA}^2 = AB^2 + BC^2$

[By Pythagoras theorem]

$a^2 + 1 +2a = a^2 + 1 - 2a + 4a\\\\a^2 + 1 +2a= a^2 + 1 +2a$

Hence, ${CA}^2 = AB^2 + BC^2$

Now In right angled triangle the sum of square of two sides of triangle is equal to square of the third side.

This proves that ∆ABC is right angled triangle with right angle at B.

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3 years ago

A rectangular prism has a volume of 3 m3 , a length of 30 cm , and a width of 40 cm . what is the height of the prism ?

olya-2409 [2.1K]

V = lwh
3 = (30)(40)(h)
3 = (1200)(h)
 3 = 1200h
1200 1200
1/400 = h

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3 years ago

What is the slope of the line with points A and B?

Zanzabum

Answer:

you will have to get the graph :\

Step-by-step explanation:

sorry

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3 years ago