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3 years ago

I will give brainliest answer

Mathematics

2 answers:

Llana [10]3 years ago

4 0

Answer:

Delta = |a b d; b c f; d f g|

(2)

J = |a b; b c|

(3)

I = a+c

(4)

K = |a d; d g|+|c f; f g|.

Step-by-step explanation:

just olya [345]3 years ago

4 0

Step-by-step explanation:

Delta = |a b d; b c f; d f g|

(2)

J = |a b; b c|

(3)

I = a+c

(4)

K = |a d; d g|+|c f; f g|.

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(-2×3)+(3×2) how do we solve it

Alexxx [7]

Answer:

Step-by-step explanation:

- 2×3= - 6

2×3=6

-6+6=0

7 0

3 years ago

Read 2 more answers

Which point lies in the solution set of the inequality 1/2(x+2)+3y<8?

nasty-shy [4]

Note: Options are missing. So, the general solution of the given inequality is shown below.

Given:

The inequality is:

$\dfrac{1}{2}(x+2)+3y$

To find:

The point lies in the solution set of the given inequality.

Solution:

We have,

$\dfrac{1}{2}(x+2)+3y$

It can be written as:

$\dfrac{1}{2}(x)+\dfrac{1}{2}(2)+3y$

$\dfrac{1}{2}x+1+3y$

$\dfrac{1}{2}x+3y$

All the points that satisfy the above inequality are in the solution set of the given inequality.

For example (0,0).

$\dfrac{1}{2}(0)+3(0)$

$0$

This statement is true. It means (0,0) is in the solution set.

For example (0,3).

$\dfrac{1}{2}(0)+3(3)$

$9$

This statement is false. It means (0,3) is not in the solution set.

The graph of the inequality $\dfrac{1}{2}x+3y$ is shown below.

All the points in the shaded region are in the solution set but the points on the boundary line are not in the solution set.

8 0

3 years ago

Find m < b<br><br>Picture Included

lana66690 [7]

Answer:

<b= 48 degree

Step-by-step explanation:

<A + <B + <C = 180 degree (Sum of angles in a triangle)

<A = 90 degree

<B = 2x + 14 degree

<C = 4x - 26 degree

$90+2x+14+4x-26=180 degree\\2x+4x=180+26-90-14\\6x=102\\x=\frac{102}{6} \\x=17 degree\\$

Therefore, <B = 2x + 14 = 2(17) + 14 = 34 + 14 = 48

<b = 48 degree

6 0

3 years ago

CAN SOMEONE PLEASE HELP ME WITH THIS

kogti [31]

Answer:

The base has length 64 m.

Step-by-step explanation:

The area of a triangle = 1/2 * base * height so we have the equation:

256 = 1/2 * b * 8

4b = 256

b = 256/4 = 64 m.

7 0

3 years ago

John is 5ft tall and is standing in the light of a 15ft lamppost. His shadow is 4ft long. He walks 1ft father away from the lamp

Dennis_Churaev [7]

The shadow lengthened by 2.25 ft.

<u>Step-by-step explanation:</u>

Height of the lamppost is not needed here.

We can write the ratio as,

5 /4 = x/5

25 = 4x

x = 25/ 4

Now it is not needed to find the length of the new shadow, and so, we need to find the length of the added shadow.

25 / 4 - 16/ 4 = 25 - 16 / 4 = 9/4 = 2.25 ft

Length of the new shadow is 25/ 4 = 6.25 ft

So length of new shadow - length of old shadow = 6.25 - 4 = 2.25 ft shadow lengthened

3 0

3 years ago