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Debora [2.8K]
2 years ago
12

Factorise each of the following a2+9a+8

Mathematics
2 answers:
Tanzania [10]2 years ago
8 0

Answer:

Step-by-step explanation:

I suppose the expression is this a^2+9a+8.

We can factor out this expression ( Remember, find two numbers that the sum is 9 and the product is 8. The numbers are 8 and 1)

a^2+9a+8=(a+1)(a+8)

Stella [2.4K]2 years ago
5 0

Answer:

well.. according to my calculation this was the factors that are Angles there are 50 Angles and 32 factors so the answer is ×÷=357_/ 97_/^23*32/##_ 23/ 1/2 3÷214

so that was the answer!

Step-by-step explanation:

Hope you understand this explanation!!and it may help!!

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217 is what percent of 620
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2 years ago
Triangle ABC is equilateral. Find the height of BD
RideAnS [48]

Since ABC is equilateral, all 3 sides have equal length. side AC is 8 units since side BC is 8 units.

Line BD is placed in the middle, making D the midpoint of side AC.

knowing this information we can determine that the length of DC is 4 units (half of AC)

since triangle BDC is a right triangle, we can use the side lengths in the pythagorean theorem to find the length of BD

a²+b²=c² where a & b = legs of triangle , and c= hypotenuse (longest side)

we are given the hypotenuse and found one leg so we can plug our values into the equation to find the third

4² + b²= 8²

16 + b² = 64

b² = 48

b = \sqrt{48}

b= 4√3 or about 6.928 units

hope this helped

3 0
3 years ago
Find the first term and the common difference of the arithmetic sequence described. Give a recursive formula for the sequence. F
Rama09 [41]

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27

Step-by-step explanation:

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8 0
3 years ago
Find the percent increase in volume when 1 foot is added to each dimension of the prism. Round your answer to the nearest tenth
Rudiy27

Answer:

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William has a 26 -liter glass tank. First, he wants to put some marbles in it, all of the same volume. Then, he wants to fill th
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Subtract the volume of the water from the volume of the tank to get the total volume of the marbles.

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To find the volume of one marble, we divide 5.1 liters by 85.

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The volume of each marble is 0.06 liters.

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The volume of the tank is 26 liters. 12 liters of volume is occupied by the marbles. The rest of the volume is water.

26 liters - 12 liters = 14 liters

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3 years ago
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