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2 years ago

Find the properties of each Quadratic Function

Mathematics

1 answer:

spayn [35]2 years ago

7 0

Down
(-2, 1)
-2
Maximum
1
All real numbers
y < 1
-3
-3 and -1
2

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tino4ka555 [31]

Answer:

x = 24

Step-by-step explanation:

10:8

10(3) = x(3)

x = 8

30 : 24

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3 years ago

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I turned the dial on my stove 45 degrees from the start position If i continue to turn the dial how many degrees further will i

Debora [2.8K]

Answer:

Hello!

YOUR ANSWER IS 315 DEGREES MORE

Step-by-step explanation:

To get it to the start position is the same as TURNING IT 360 DEGREES!

So from 45 degrees to reach 360 degrees...another 315 degrees will be needed!

HOPE THIS HELPS!!

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3 years ago

Automobile mechanics conduct diagnostic tests on 150 new cars of a particular make and model to determine the extent to which th

Aleks04 [339]

Answer:

99% Confidence interval: (0.185,0.375)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 150

Number of cars that have faulty catalytic converters, x = 42

$\hat{p} = \dfrac{x}{n} = \dfrac{42}{150} = 0.28$

99% Confidence interval:

$\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.01} = \pm 2.58$

Putting the values, we get:

$0.28\pm 2.58(\sqrt{\frac{0.28(1-0.28)}{150}}) = 0.28\pm 0.095\\\\=(0.185,0.375)$

The 99% confidence interval for the true proportion of new cars with faulty catalytic converters is (0.185,0.375)

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3 years ago

(CO 2) A random selection from a deck of cards selects one card. What is the probability of selecting a spade

lora16 [44]

Answer:

$P(Spade) = 0.25$

Step-by-step explanation:

Given.

In a deck, there are:

$Cards = 52$

$Spade= 13$

Required

Determine the probability that a selected card is a spade

This is represented as: P(Spade) and it is calculated using:

$P(Spade) = \frac{Spade}{Cards}$

Substitute 13 for Spade and 52 for Cards

$P(Spade) = \frac{13}{52}$

$P(Spade) = 0.25$

<em>Hence, the required probability is 0.25</em>

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2 years ago

Jordan is saving his money to buy a new pair of shoes.

Sindrei [870]

Answer:C

Step-by-step explanation:

90+(50×6)=390

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3 years ago

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