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3 years ago

12

Write an algebraic expression for “5 times the difference of q squared and r plus 8 times the sum of 3q and 2r”. Then simplify t

he expression and indicate the properties used.

1 answer:

Semmy [17]3 years ago

4 0

Hopefully this is what you are looking for.

5(q^2-r)+8(3q+2r)
Does this look like what you are currently doing?

5q^2-5r+24q+16r
5q^2+24q+11r

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Can u help me plz thanks

Mrrafil [7]

1. x = -4 ; f(x) = -(-4) = 4
2. x = -3 ; f(x) = 2(-3) + 1 = -5
3. x = 0 ; f(x) = 2(0) + 1 = 1
4. x = 2 ; f(x) = 2 + 3 = 5
5. x = 5 ; f(x) = 5 + 3 = 8

4 0

3 years ago

Two cars are driving toward each other from opposite directions. If one is driving 55 mph, the other is driving 60 mph and the c

Korvikt [17]

Set 500 to sum of distances traveled by both cars.
$55t + 60t = 500 \\ 115t = 500 \\ t = (500/115) = 4.3$

4 0

2 years ago

What is the area of this?

Vanyuwa [196]

$area = lw \\ area = (7.5)(6) \\ area = 45 {feet}^{2}$

$area = \frac{1}{2} bh \\ area = \frac{1}{2} (6)(4) \\ area = \frac{1}{2} (24) \\ area = 12 {feet}^{2}$

total area = 45 + 12

total area = 57 feet²

6 0

2 years ago

Fully simplify 7c - 4h - 2c - 5h

astraxan [27]

Answer:

5c-9h

Step-by-step explanation:

1) 7c-4h-2c-5h

2) 5c-4h-5h

3) 5c-9h

4 0

1 year ago

Use the equation s=5q+8 to find the value of s when q=1.

Norma-Jean [14]

Answer:

s=13

Step-by-step explanation:

s=5q+8

plug in numbers

s=5(1)+8

solve 5*1

s=5+8

solve 5+8

s=13

7 0

2 years ago