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Tasya [4]
3 years ago
12

I’m not sure how to do this someone explain please

Mathematics
1 answer:
Stels [109]3 years ago
6 0

Pictures listed in order... from A-C

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Rachel is using grouping to find the factors of a quadratic expression. She has reached the step shown below. Determine the fact
Feliz [49]

Answer: First option is correct.

Step-by-step explanation:

Since we have given that

If the factored form is given by

(3x-4)(x+2)

Then its standard form will be given by

(3x-4)(x+2)\\\\=3x^2+6x-4x+8\\\\=3x^2+2x+8

if factored form is given by

(3x+2)(x+4)

Then its standard form will be given by

(3x+2)(x+4)\\\\=3x^2+12x+2x+8\\\\=3x^2+14x+8

Hence, only first option is correct.

5 0
4 years ago
Read 2 more answers
A model of a house is shown.
deff fn [24]

<u>Given</u>:

Given that the model of the house.

The house is made up of two composite figures triangle and rectangle.

The two sides of the triangle are 6x - 4 units each.

The length of the rectangle is 14x + 13.

The width of the rectangle is 12x + 3.

We need to determine the perimeter of the house.

<u>Perimeter:</u>

The perimeter of the house can be determined by adding all the sides of the house.

Thus, we have;

Perimeter=2(6x -4 )+2(12x+3)+(14x+13)

Simplifying the terms, we get;

Perimeter=12x -8+24x+6+14x+13

Adding the like terms, we have;

Perimeter=50x+11

Thus, the perimeter of the house is 50x + 11 units.

Hence, Option d is the correct answer.

5 0
3 years ago
A tetrahedron is a pyramid with a triangular base. Find the volume of the tetrahedron.
melamori03 [73]

Answer:

Tetrahedron generally known as triangular pyramid consists of 4 triangular faces, 6 edges and 4 vertices. The base of the tetrahedron is a triangle. All the vertices have the same atom that is bonded to the central metal atom which lies in the centre of the tetrahedron. We take  as an example to see how the atoms actually bond in tetrahedron.  It is quite visible from the image that 4 O-atoms lies on all the 4 vertices and 1 Si-atom lie in the centre.

Step-by-step explanation:

8 0
3 years ago
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Evaluate this equation step y step 3-(-5)-7
Umnica [9.8K]

Answer:

1

Step-by-step explanation:

3-(-5)-7

(3+5)-7

8-7

= 1

Remember, a negative times a negative equals a positve.

3 0
4 years ago
The set up fee for a photo book is $15. The paper is an additional charge of $0.17 per page. What is the greatest number of page
Whitepunk [10]

$0.17x + $15 < 40 this is the awnser to this question. If you have any further questions plese contact me and I will be happy to explain anything.


8 0
4 years ago
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