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Lubov Fominskaja [6]
3 years ago
6

Please answer, will give brainliest.

Mathematics
2 answers:
vladimir1956 [14]3 years ago
6 0

Answer:

third one

Step-by-step explanation:

Paul [167]3 years ago
5 0

Answer:

I think one solution

Step-by-step explanation:

*Sorry if this did not help. I'm only in 5th grade*

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Using the distributive property to find the product (y – 4)(y2 + 4y + 16) results in a polynomial of the form y3 + 4y2 + ay – 4y
horsena [70]
( y - 4 ) ( y² + 4 y + 16 ) = y³ + 4 y² + 16 y - 4 y² - 16 y - 64
The result is a polynomial of the form:
y³ + 4 y² + a y - 4 y² - a y + 64;
Answer: a = 16
7 0
3 years ago
The area of a rectangular fountain is (x^2 + 12x +20) feet squared. The width is (x + 2) feet.
n200080 [17]
Part A:
The total area = x² + 12x + 20 = (x+2)(x+10)
<span>The width = x+2
∴ Length = area / width = </span>[ <span>(x+2)(x+10) ] / (x+2) = x+10

Part B: </span>
<span>A 2-foot walkway is built around the fountain
</span>
<span>∴ The width = (x+2) + 2 + 2 = x + 6
The length = (x+10) + 2 + 2 = x +14

Part C:
</span><span>the total area covered by the fountain and walkway. </span><span>
   = (x+6)(x+14)
   = x² + 20 x + 84

See the attache figure for more explanation

</span>

5 0
4 years ago
How to solve this equation? Please
Shtirlitz [24]
Solve Let's solve your equation step-by-step.5+3.9x−8.15x25x=0
Step 1: Simplify both sides of the equation.−0.326x2+3.9x+5=0
Step 2: Use quadratic formula with a=-0.326, b=3.9, c=5.x=−b±sqrt(b2−4ac)2ax=−(3.9)±sqrt((3.9)2−4(−0.326)(5))2(−0.326)x=−3.9±sqrt(21.73)−0.652x=−1.1680135096973403,13.131203693746418Answer:<span>x=

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7 0
3 years ago
Which of the following is a factor of 8x2 + 6xy – 9y2 ? A    x – 3y B    2x – 3y C    4x – 3y D    8x – 3y
lubasha [3.4K]
D i think but not really sure maybe idk 

7 0
4 years ago
In a class of 30 students, 12 are girls. One-third of the boys study history.
frosja888 [35]
The number of boys is:
30 - 12 = 18.

18 boys* (1/3)= 6 boys
There are 6 boys who study history.

6 students/ 30 students= 1/5.

1/5 of the students are boys who study history~
7 0
4 years ago
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