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3 years ago

Someone help me please

Mathematics

1 answer:

Amiraneli [1.4K]3 years ago

8 0

Answer:

You answer should be -12.

Step-by-step explanation:

b2−4ac

=(6)^2−4(4)(3)

=−12

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Find the product <br> -1/2 y(2y3-8)

MissTica

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3 years ago

Prove that if xy > 0, then either x > 0 and y > 0 or x < 0 and y < 0

Rufina [12.5K]

The rule of product states that:

$(+) \cdot (+) = (+)$
$(+) \cdot (-) = (-)$
$(-) \cdot (+) = (-)$
$(-) \cdot (-) = (+)$

So, a product is positive if and only if both factors have the same sign, and is negative if only if the factors have opposite sign.

7 0

3 years ago

Help meee!!!!!!!! I need this to graduate!!!!!!!

Pie

Answer:

• Slope is the derivative of the function:

${ \rm{f(x) = {x}^{3} + 3 {x}^{2} + 3x + 1 }} \\ \\ { \tt{ \frac{dy}{dx} = 3 {x}^{2} + 6x + 3 + 0 }}$

• At, x = 0

${ \tt{ \frac{dy}{dx} = 3 {(0)}^{2} + 6(0) + 3}} \\ \\ { \boxed{ \tt{slope = 3}}}$

3 0

2 years ago

Read 2 more answers

Please help asap 29 pts

harkovskaia [24]

-|6-18|

-|-12|

-12

Answer -12

ChoiceD

7 0

2 years ago

KiRa [710]

Answer:

B. The probability of getting a red convertible is 0.10.

Step-by-step explanation:

Independent events:

Two events, A and B, are independent if the probability of both happening is the same as the multiplication of the probabilities of each happening, that is:

$P(A \cap B) = P(A) \times P(B)$

In this question:

Event A: Red car -> 0.25 probability

Event B: Convertible car -> 0.4 probability

Independent if:

The probability of getting a red convertible car is:

$P(A \cap B) = P(A) \times P(B) = 0.25*0.4 = 0.1$

Thus, the correct answer is given by option B.

5 0

2 years ago