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3 years ago

What is the following product?

Mathematics

2 answers:

Aleksandr [31]3 years ago

8 0

Using (a-b)^2 = a^2 - 2ab + b^2

so

(5√2 - 4√3)^2
= (5√2)^2 - 2 (5√2)(4√3) + (4√3)^2
= 50 - 40√6 + 48
= 98 - 40√6

answer
D. last choice
98 - 40√6

Inessa [10]3 years ago

5 0

The answer is 98-40 square root 6

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Multiply. −(−9x4−5x2+2x +13) Express the answer in standard form. Enter your answer in the box.

VikaD [51]

Answer:

9x^4+5x^2-2x-13

Step-by-step explanation:

7 0

3 years ago

Find f(3). f(x) = x2 + 5x - 9 A) 7 B) 10 C) 9 D) 15

Lelechka [254]

Answer:

f(3) = 15. Correct: D)

Explanation:

Numeric Value of a Function

The value of a function f(x) when x = a is calculated by replacing the x for a. We have the function:

$f(x)=x^2+5x-9$

It is required to find f(3), or the numeric value of f when x=3. Replace x for 3

$f(3)=3^2+5(3)-9$

$f(3)=9+15-9$

$f(3)=15$

A) Incorrect. f(3) is not 7

B) Incorrect. f(3) is not 10

C) Incorrect. f(3) is not 9

D) Correct. f(3) =15 as found above.

4 0

3 years ago

What is the perimeter? O2 cm O 5 cm O 10 cm O 20 cm

notsponge [240]

Answer:

You'll guys is so boring

6 0

2 years ago

Please answer theses questions NEED THEM FAST please

scoundrel [369]

1)

C ≈ 3.14 • 9
C ≈ 28.26
The circumference is 28.3 cm to the nearest tenth of a centimeter

2)

C ≈ 3.14 (2 • 13)
C ≈ 3.14 • 26
C ≈ 81.64
The circumference is 81.6 in to the nearest tenth of a inch

3)

C = 3.14 (13)
C = 40.82
C = 40.8

4)

C = 3.14 (2 • 5)
C = 3.14 (10)
C = 31.4

5)

C = 3.14 (2 • 1.5)
C = 3.14(3)
C = 9.42
C = 9.4

6 0

3 years ago

111=13, 113=35, 115=57, 117=?

Elden [556K]

In the pattern, the values are increasing by 22 each time so for the 117th term you take 57 + 22 = 79

So, 117= 79

3 0

3 years ago