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iris [78.8K]
3 years ago
8

Which binomial is a factor of 9x2 – 64?

Mathematics
1 answer:
worty [1.4K]3 years ago
4 0
This is a differnce of 2 perfect squares
a²-b²=(a-b)(a+b)
so
9x²-64=(3x)²-(8)²=(3x-8)(3x+8)
factors are (3x-8) and (3x+8)
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THIS IS 99 POINTS!!!!!!! WILL REPORT IF YOU DONT ANSWER CORRECTLY
Umnica [9.8K]
Gg easey

perimiter is jsut the sum of the measures of the sides

P=2.3x+14+2x-0.2x+15
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4 0
3 years ago
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It costs $2.80 to make a sandwich at the local deli shop. To make a profit, the deli sells it at a price that is 170% of the cos
Svetlanka [38]

Answer:

Sandwich sells for  $4.76  .

Step-by-step explanation:

As given

It costs $2.80 to make a sandwich at the local deli shop.

To make a profit, the deli sells it at a price that is 170% of the cost.

170% is written in the decimal form

= \frac{170}{100}

= 1.7

Thus

Sandwich selling cost = 1.7 × Cost of making

Put all the values in the above

Sandwich selling cost = 1.7 × $ 2.80

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Therefore the Sandwich sells for  $4.76  .

7 0
3 years ago
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If y=tanx-cotx, then dy/dx =
Vsevolod [243]

Answer:

dy/dx=sec^2^(x)-(-csc^2(x)

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3 0
3 years ago
When 300 apple trees are planted per acre, the annual yield is 1.6 bushels of apples per tree. For every 10 additional apple tre
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5 0
3 years ago
Use the Pythagorean Theorem to find the distance of the missing side. (I’m sorry I need help with the whole thing)
Maurinko [17]

Answer:

1: 5.83

2: 4.12

3: 3.61

4: 5

5: 6.32

6: 5.10

Step-by-step explanation:

The Pythagorean theorem is a^2 + b^2 = c^2

For all of these you can count the number of blocks over to find two sides of the triangle.

For example: the first one has two sides, one is 3 units, the other is 5. To find the missing angle you square 3 and 5, then add that together. That is equal to 34. 34 = c^2. To get the c by itself, you then take the square root of 34. So the missing side (c) is equal to 5.83.

8 0
3 years ago
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