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4 years ago

If quad means 4 why do we call a 2nd degree equation a quadratic?

1 answer:

ioda4 years ago

4 0

This is the case because quadratum is the Latin word for square, and since the area of a square of side length x is given by x2, a polynomial equation having exponent two is known as a quadratic ("square-like") equation

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Round each decimal to the nearest thousandth. a. 5.39562 b. 0.12345 c. .5634 d. 18.93763

krok68 [10]

Answer:

a. 5.396

b. 0.123

c. 0.563

d. 18.938

Step-by-step explanation:

8 0

4 years ago

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Express your answer in simplest a+ bi form. (8+5i)(3+2i)-(4+i)(4-i)

Elanso [62]

$\qquad\qquad\huge\underline{{\sf Answer}}$

Let's solve ~

$\qquad \sf \dashrightarrow \:(8 + 5i)(3 + 2i) - (4 + i)(4 - i)$

$\qquad \sf \dashrightarrow \:[( 8 \sdot3) + (8 \sdot2i) + (5i \sdot3) + (5i \sdot2i)] -[( 4 \sdot4) + (4 \sdot - i) + (i \sdot4) + (i \sdot - i)]$

$\qquad \sf \dashrightarrow \:[24+ 16i + 15i+ 10i {}^{2} ] -[16 - 4 i+ 4i - i {}^{2} ]$

$\qquad \sf \dashrightarrow \:[24+ 31i+ 10 {}{( - 1)} ] -[16 - ( - 1){}^{} ]$

$\qquad \sf \dashrightarrow \:[24+ 31i - 10 {}{} ] -[16 + 1{}^{} ]$

$\qquad \sf \dashrightarrow \:[14+ 31i {}{} ] -[17{}^{} ]$

$\qquad \sf \dashrightarrow \: - 3+ 31i {}{}$

I hope you understood the procedure ~

5 0

2 years ago

PLEASE help me. I am stuck on this question for a long time.

aliina [53]

Answer:4th option

Step-by-step explanation:

5 0

3 years ago

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PLEASE HELPPP Which one is equivalent??

Yuliya22 [10]

Answer:

the answer is A AND WE LOVE BILLIE

Step-by-step explanation:

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3 years ago

Decrease $7500 by 7% please help i need step by step explanation

soldier1979 [14.2K]

(100% - 7%) × 7,500

= 93% × 7,500

= 93 ÷ 100 × 7,500

= 93 × 7,500 ÷ 100

= 697,500 ÷ 100

= 6975
hope this helped

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3 years ago

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