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3 years ago

If anyone can help me I’ll give all my points to u..

Mathematics

2 answers:

V125BC [204]3 years ago

7 0

Answer:

${x}^{2} + 6x - 8 - 3x + 2 - 3 {x}^{2} \\ = (1 - 3) {x}^{2} + (6 - 3)x + 2 - 8 \\ = - 2 {x}^{2} + 3x - 6$

4x+4+2x+2-8x

=(4+2-8)x +4+2

=-2x+6

balu736 [363]3 years ago

5 0

Answer: 12x squared

Step-by-step explanation:

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What are the angles?

mezya [45]

Answer:

a = c

b = d

c = a

d = b

hope it helps

8 0

3 years ago

Two sides of a triangle measure 7 meters and 9 meters. Which of the following measures could represent the perimeter of the tria

boyakko [2]

Perimeter is sum of all the sides ,

so, perimeter will be 7 + 9 + x = 16 + x

it will be more than 16 for sure

8 0

4 years ago

Giving brainlist for the correct answer

Reptile [31]

Answer:

NO, YES, YES, NO

Step-by-step explanation:

Subsitute the number they give you and then solve. Finally, see if the equation is true.

13 - 7 = 20 This is equation is not true. (NO)

15 · 8 = 120 This equation is true. (YES)

24/12 = 2 This equation is true. (YES)

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6 0

3 years ago

Read 2 more answers

The Great Pyramid in Giza, Egypt, is a square pyramid. The dimensions of the pyramid at the time of its completion are shown in

ryzh [129]

Answer:

Area of square pyramid is $153883.8\ m^{2}$ .

Step-by-step explanation:

Diagram of the given scenario is shown below,

Given that,

The Great Pyramid in Giza, Egypt is a square pyramid. The area of base shape is made up with square is $154 \ m^{2}$ . The side of the square is $230 \ m$ and The height of each triangle is $187 \ m$ .

So, Area of Square shape = $154 \ m^{2}$

Side of square = $230 \ m$

Height of each triangle = $187 \ m$

Finding the Height of triangular shape which is here known as slant height.

In Δ ABO, applying Right angle pythagorean Theorem,

Base $(BO)$ = $\frac{230}{2} = 115\ m$

Height $(AO)$ = $187\ m$

Now,

∴ $AB^{2} = AO^{2} \ + \ BO^{2}$

⇒ $AB= \sqrt{AO^{2} \ + \ BO^{2} }$

⇒ $AB= \sqrt{187^{2} \ + \ 115^{2} }$

⇒ $AB= \sqrt{34969 \ + \ 13225 }$

⇒ $AB= 219.53 \ m$

Then,

Area of square pyramid = $area \ of \ square + \ 4\times area \ of \ traiangle$

= $side\times side + 4\times\frac{1}{2}\times AB\times Base$

= $230\times 230 \ + 2\times 219.53\times 230$

= $52900 + 100983.8$

= $153883.8 \ m^{2}$

Hence, Area of square pyramid is $153883.8\ m^{2}$ .

6 0

3 years ago

Please help me i will give brainliest to the right answer

horsena [70]

Answer:

4(5y-2)

-2(3y+(-7))

-2(9y-(-8))

3 0

3 years ago