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3 years ago

What is the value of 3x² + 2y3 when x = -4 and y = -2

Mathematics

2 answers:

skad [1K]3 years ago

7 0

Ummmmmmm -26 ......... in

Sati [7]3 years ago

7 0

Answer:

Step-by-step explanation:

$3x^2 + 2y^3$ = $(3 * (-4))^2 + (2 * (-2))^3$ = $(-12)^2 + (-4)^3$ = $144 + (-64) = 80$

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An automobile manufacturer obtains the microprocessors used to regulate fuel consumption in its automobiles from three microelec

Anastaziya [24]

Answer:

The probability that a randomly selected automobile manufactured by the company will have a defective microprocessor is 6.2 %.

Step-by-step explanation:

Given:

The probability of getting a microprocessor from firm A is, $P(A)=45\%=0.45$

The probability of getting a microprocessor from firm B is, $P(B)=30\%=0.30$

The probability of getting a microprocessor from firm C is, $P(C)=25\%=0.25$

Now, let event D be having a defective microprocessor at random.

So, as per the question,

Probability of producing a defective microprocessor from firm A is, $P(D/A)=6\%=0.06$

Probability of producing a defective microprocessor from firm B is, $P(D/B)=7\%=0.07$

Probability of producing a defective microprocessor from firm C is, $P(D/C)=5.5\%=0.055$

Now, probability of having a defective microprocessor when selected at random is given as:

$P(D)=P(A)\cdot P(D/A)+P(B)\cdot P(D/B)+P(C)\cdot P(D/C)\\P(D)=(0.45\times 0.06)+(0.30\times 0.07)+(0.25\times 0.055)\\P(D)=0.027+0.021+0.01375\\P(D)=0.06175\ or\ P(D)=0.06175\times 100\approx 6.2\%$

Therefore, the probability that a randomly selected automobile manufactured by the company will have a defective microprocessor is 6.2 %.

5 0

3 years ago

Are these two claims equivalent, in conflict, or not comparable because they're talking about different things?9 a. "75 percent

blsea [12.9K]

Step-by-step explanation:

dnxjdjedjxkdkdkxkxmxmdmxmcmcmxmxm cxvfbfb cfbfbfbfbt xswzxvt

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3 years ago

Which is a qualitative graph? On a coordinate plane, a line with positive slope goes through points (negative 1, 0) and (0, 3).

guapka [62]

Answer:

(-1,0), (0,3) and (2,2.25)

Step-by-step explanation:

The qualitative graph is as follows:

A(-1,0) ------> B(0,3) ------> C(2,2.25)

Hence, slope = (2.25 - 0)/(2 - (-1)) = 2.25/3

∴ slope = 0.75

6 0

3 years ago

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Joan has a credit card that uses the previous balance method. The opening balance of one of her 30-day billing cycles was $6390,

Gekata [30.6K]

It would be something that looks like this:

((6390 * 0.17)/365) x 3

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3 years ago

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What data does the x-axis show?<br> 25 points ***!!

Aleonysh [2.5K]

Answer:

time in weeks

Step-by-step explanation:

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2 years ago