3 years ago

Evaluate 4(a^2 + 2b) - 2b when a = 2 and b = –2.

Mathematics

2 answers:

Rama09 [41]3 years ago

7 0

Answer:

Step-by-step explanation:

4(4-4)+4=4

insert 2 in a and-2 in b

antoniya [11.8K]3 years ago

3 0

Answer:

Step-by-step explanation:

4(2^2 + (2 * -2)) - (2 * -2)

2^2 = 4

4(4 + (2 * -2)) - (2 * -2)

2 * -2 = -4

4(4 + -4) - -4

- -4 = + 4

+-4 = -4

4(4 -4) + 4

4 - 4 = 0

4(0) + 4

4 * 0 = 0

0 + 4

0 + 4 = 4

You might be interested in

Write the equations in graphing form, then state the vertex of the parabola or the center and radius of the circle.

vaieri [72.5K]

(x+1)^2+(y-2)^2=9

center:(-1,2)
radius:3

8 0

3 years ago

5+4−6=24 plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

GREYUIT [131]

Answer:

its false

Step-by-step explanation:

5+4-6=24

9-6=24

3=24 3 does not equal to 24 so its false

7 0

2 years ago

In a shop, the original price of a coat is £50.22

iragen [17]

Answer:

A. 40.18

B. 42.80

Step-by-step explanation:

A. To find the discount price of an item multiply the price by the percentage you pay. Its discounted 20% meaning you pay 80%. Then the price of the coat is 0.8(50.22) = 40.18.

B. The sale price of a shirt is 25.68. The original price as reduced by 3/5. The original price is equal to 25.68 = 3/5x. Solve for x by multiplying by the reciprocal. 25.68 ( 5/3) = x. 42.8 = x.

4 0

2 years ago

Which table does not represent a function?

Mrrafil [7]

Answer:

Step-by-step explanation:

To be a function every input must have exactly one output. There are two input values with 2, therefore this makes it not a function.

3 0

2 years ago

A car rental charge is $40 per day plus $0.30 per mile traveled write the equation as a function

tensa zangetsu [6.8K]

The answer is y=$0.30x+$40

3 0

2 years ago