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zaharov [31]
4 years ago
9

Multiply the Polynomial (5a-b)(5a+8b) Explain.

Mathematics
2 answers:
docker41 [41]4 years ago
8 0
(5a - b)(5a + 8b)
5a(5a + 8b) - b(5a + 8b)
5a(5a) + 5a(8b) - b(5a) - b(8b)
25a² + 40ab - 5ab - 8b²
25a² + 35ab - 8b²
Vesnalui [34]4 years ago
5 0
(5a-b)(5a+8b)=(5a*5a)+(5a*8b)+(-b*5a)+(-b*8b)=25a^2+40ab-5ab-8b^2=25a^2+25ab-8b^2
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When you are given three side lengths for a triangle, how do you know which length to substitute for a, b, or c in the Pythagore
Romashka [77]

Answer:

When Sum of square of two Sides is equal to square of third side of triangle.

Step-by-step explanation:

Given:

Three side length of triangle are given we need find the which value to substitute for a, b, c in Pythagoras theorem.

First we will find the squares of all length, then we will check which two square of side are equal to square of third side as per Pythagoras theorem.

Hence the two side would according be a and b and third side will become c.

For example if length of triangle  is given as 6 cm, 8 cm and 10 cm.

We will first take square of all

6^2=36\\8^2=64\\10^2=100

Now we can see that

36+64=100\\6^2+8^2=10^2

Now by Pythagoras theorem.

a^2+b^2=c^2

Hence we can say a = 6 cm, b = 8 cm, c= 10 cm  

6 0
4 years ago
What is -24m-16=-56 and show work
Viktor [21]

Answer:

3/5

Step-by-step explanation:

-24m-16 = -56

-24m = -40

m= 24/40

m= 3/5

7 0
3 years ago
Read 2 more answers
A company that manufactures and sells consumer video cameras sells two versions of their popular hard disk​ camera, a basic came
saul85 [17]

Answer:

The percentage of customers who buy an extended warranty is 33%.

Step-by-step explanation:

In this problem, we have these following percentages.

35% of the customers select the basic camera.

This also means that:

65% of the customers select the deluxe version. (Since you can buy only two versions of the hard disk camera and the sum of the percentages is 100%).

20% of those who select the basic camera also purchase the extended warranty.

40% of those who select the deluxe version also purchase the extended warranty.

What is the percentage of customers who buy an extened warranty?

P = P_{1} + P_{2}

P_{1} is the percentage of those who buy the basic version with the extended warranty. So it is 20% of 35%. So

P_{1} = 0.20*0.35 = 0.07

P_{2} is the percentage of those who buy the deluxe version with the extended warranty. So it is 40% of 65%. So

P_{2} = 0.40*0.65 = 0.26

P = P_{1} + P_{2} = 0.07 + 0.26 = 0.33

The percentage of customers who buy an extended warranty is 33%.

3 0
4 years ago
Identify the domain of the function shown in the graph.
BARSIC [14]

x \geqslant 0
D
5 0
3 years ago
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(x - 1) + (2x + 3) <br><br><br><br> please help
Nostrana [21]

Answer:

3x +2

Step-by-step explanation:

(x - 1) + (2x + 3)

Combine like terms

x+2x  -1 +3

3x +2

7 0
4 years ago
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