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2 years ago

1. Which of the following ordered pairs is a possible solution to the equation y = 3x - 2?

Mathematics

1 answer:

algol [13]2 years ago

5 0

Answer: D

Step-by-step explanation:

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Factorise the following

ASHA 777 [7]

Answer:

4ny²+4n²-4n-8+y⁴-2y²

3 0

3 years ago

Write the quadratic equation whose roots are 3 and -1, and whose leading coefficient is 5.

Assoli18 [71]

Answer:

5x² - 10x - 15 = 0

Step-by-step explanation:

Given that the roots are x = 3 and x = - 1, then the factors are

(x - 3) and (x + 1) and the quadratic is the product of the factors, that is

f(x) = a(x - 3)(x + 1) ← a is a multiplier

Here a = 5, thus

f(x) = 5(x - 3)(x + 1) ← expand factors using FOIL

= 5(x² - 2x - 3) ← distribute parenthesis by 5

= 5x² - 10x - 15

Thus equation is

5x² - 10x - 15 = 0

6 0

3 years ago

Y(y + 4) - y 2 = 6 is a quadratic equation. True or False

Ugo [173]

Y(y + 4) - y2 = 6
y2 + 4y - y2 = 6
4y = 6 ⇒ False

3 0

3 years ago

Read 2 more answers

Write a multiplication problem in which the product has two decimal places

sukhopar [10]

.5 x .5 = .25

Here you go! :)

8 0

3 years ago

Read 2 more answers

From delta math:<br> Subtract -2x^2 + 3x - 9 from 8x^2 + 10x - 10

Leto [7]

Answer:

$10x^2 + 7x - 1$

Step-by-step explanation:

Step 1: Build the expression in numerical form.

$(8x^2 +10x - 10) - (-2x^2 + 3x - 9)$

Step 2: Distribute the negative sign.

$8x^2 +10x -10 + (-1)(-2x^2) + (-1)(3x) + (-1)(-9)$
$8x^2 + 10x - 10 + 2x^2 + (-3x) + 9$

Step 3: Combine like terms.

$(8x^2 +2x^2) + (10x -3x) + (-10+9)$
$10x^2 +7x -1$

Therefore, the answer is $10x^2 + 7x -1$ .

4 0

2 years ago