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4 years ago

I need help with these 4 questions please ill mark brainliest

Mathematics

1 answer:

sleet_krkn [62]4 years ago

3 0

#1 is C, #2 is B, #3 is C, and #4 is A.

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Nezavi [6.7K]

38 degrees

because i’m apart like that

6 0

3 years ago

Describe the possible configurations and the possible number of points of intersection of (a) 2 lines in the plane (b) 3 lines i

FinnZ [79.3K]

Answer: The answer is given below.

Step-by-step explanation: The description is as follows:

(a) 2 lines in the plane : Any two lines in a plane can either be parallel or intersect at only one point.

(b) 3 lines in the plane : Any three lines in a plane may intersect at a point, if so, they are called concurrent lines, or they may never intersect.

(c) 2 lines in space : There are exactly three possibilities.

* The two lines are distinct and they have no points in common.

* The two lines are distinct and they have exactly one point in common.

* The two lines are really the same line and they have all of their points in common.

(d) ) 3 planes in space : Here also, we have three possibilities:

* The three planes are distinct and they have no points in common.

* The three planes share exactly one point.

* The three planes share infinitely many points, i.e., they could all share a line or they could all be the same plane.

6 0

4 years ago

The temperature at the south pole was 6 degrees at 8am. At 3 pm it was -18 degrees. By how many degrees did the temperature drop

olga2289 [7]

Answer:

$24\°$

Step-by-step explanation:

we know that

To determine how many degrees drop the temperature, find out the absolute value of subtract the temperature at 8 am from the temperature at 3 pm.

$\left|-18-6\right|=24\°$

7 0

3 years ago

Determine the area of the shaded region (grey) in the quadratic form.

NeX [460]

Answer:

The area of shaded region is: $13x^2+6x-15$

Step-by-step explanation:

We can see in the diagram that

$Length\ of\ gray\ rectangle = l_g = 3x+5\\Width\ of\ gray\ rectangle = w_g = 4x-3$

The area of rectangle is given by:

Area = Length * width

Now for gray rectangle

$A_g = l_g * w_g\\= (3x+5)(4x-3)\\= 3x(4x-3)+5(4x-3)\\= 12x^2-9x+20x-15\\=12x^2+11x-15$

For White Rectangle:

$Length = l = 5-x\\Width = w = x\\A_w = l * w\\A_w = (5-x)(x)\\= 5x-x^2$

Now,

The area of shaded region will be calculated by subtracting the area of white triangle from the gray triangle.

$A_s = A_g - A_w\\= (12x^2+11x-15) - (5x-x^2)\\=12x^2+11x-15-5x+x^2\\=12x^2+x^2+11x-5x-15\\=13x^2+6x-15$

Hence,

The area of shaded region is: $13x^2+6x-15$

4 0

3 years ago

Write an equation that represent the line. Use exact numbers.

zloy xaker [14]

Answer:

y = 3/4x + 2

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers