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jeka57 [31]
2 years ago
5

What is the product of (a-5) and (a+3)

Mathematics
1 answer:
abruzzese [7]2 years ago
3 0
= (a-5).(a+3) = a²+3a-5a-15 = a²-2a-15
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(8+2b)+(-4+6x)+(6+9m)
ANTONII [103]

Answer:

2 b + 9 m + 6 x + 10

Step-by-step explanation:

2 b + 4 + 6 x + 6 +9 m

2 b + 6 x + 10 + 9m

2 b + 6 x + 9 m + 10

= 2 b + 9 m + 6 x + 10

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2 years ago
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Use algebraic rules of equations to predict the solution to the system of equations. Include all of your work for full credit.
dolphi86 [110]
X+2y=10
x=10-2y

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3 years ago
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Is -0.5 an integer? Explain.​
Drupady [299]
Yes, -0.5 is an integer because it is a negative number. Any number that is positive or negative is an integer.
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Given g(x)=|-3x+16|, if g(x)=18, find x.
LenaWriter [7]

Answer:

x = - \frac{2}{3} , x = \frac{34}{3}

Step-by-step explanation:

The absolute value function always gives a positive value, however, the expression inside can be positive or negative, that is

- 3x + 16 = 18 or -(- 3x + 16) = 18

Solving

- 3x + 16 = 18 ( subtract 16 from both sides )

- 3x = 2 ( divide both sides by - 3 )

x = - \frac{2}{3}

or

-(- 3x + 16) = 18

3x - 16 = 18 ( add 16 to both sides )

3x = 34 ( divide both sides by 3 )

x = \frac{34}{4}

As a check

Substitute these values into the left side of the equation and if equal to the right side then they are the solutions.

| - 3(- \frac{2}{3} ) + 16 | = | 2 + 16 | = | 18 | = 18 ← True

| - 3(\frac{34}{3} ) + 16 | = | - 34 + 16 | = | - 18 | = 18 ← True

Thus x = - \frac{2}{3} and x = \frac{34}{3} are the solutions

8 0
2 years ago
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There are 8 marbles in a bag, all of different colors. In how many orders can 4 marbles be chosen? In other words, what is the
Ratling [72]

I got 70

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=8!/((8-4)!*4!)

=8*7*6*5*4!/(4!*4!)

=8*7*6*5/(4*3*2)

=70 ways

3 0
2 years ago
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