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spayn [35]
3 years ago
14

Evaluate 4 - 2(a2 – b2)2 when a = 3 and b = 2.

Mathematics
2 answers:
Anton [14]3 years ago
6 0

Answer:

-46

Step-by-step explanation:

4 - 2(a^2 – b^2)^2 =

= 4 - 2(3^2 – 2^2)^2

= 4 - 2(9 - 4)^2

= 4 - 2(5)^2

= 4 - 2(25)

= 4 - 50

= -46

Whitepunk [10]3 years ago
5 0

Answer:

= -46

Step-by-step explanation:

4 - 2(a² - b²)²

= 4 - 2(3² - 2²)²

= 4 - 2(9 - 4)²

= 4 - 2(5)²

= 4 - 2(25)

= 4 - 50

= -46

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makvit [3.9K]

Answer:

z=7

Step-by-step explanation:

25(−2)=125

25−50=125

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3 years ago
A local little league has a total of 90 players of whom 20% are left-handed. How many left-handed players are there? Please help
german
18

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Hope that helps
7 0
3 years ago
"three times a number is greater than or equal to 12 and less than 21"
Diano4ka-milaya [45]

Answer:

The required inequality is: 12 ≤ 3x < 21

Step-by-step explanation:

We are given: three times a number is greater than or equal to 12 and less than 21

We need to answer following questions:

1) The inequality translated in numerical form

Let number = x

12 ≤ 3x < 21

2) Your work solving the inequality

We need to find value of x. Divide the inequality by x

4 ≤ x < 7

3) The solution graphed on a number line

It is shown in figure attached.

4) The solution in set notation

The set notation is: Considering x belongs to natural numbers N

{∀ x|x∈N, 4 ≤ x < 7}

5) The solution in interval notation

The interval notation is: [4,7)

because we have 4 less than equal to x and x is less than 7

8 0
3 years ago
Please help me 7th grade
Anon25 [30]

Answer:

4(-80) = -320

Step-by-step explanation:

His elevation decreased by 80 each hour. Since he was walking for 4 hours, the equation would be

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6 0
2 years ago
What is the standard form of (2+3i)(4-7i)/(1-I)
AlladinOne [14]
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8 0
3 years ago
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