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3 years ago

Suppose that F(x) = x^3 and G(X) = -3x^3. Which statement best compares the

Mathematics

1 answer:

Alik [6]3 years ago

6 0

Answer:

D. The graph of G(x) is the graph of F(x) flipped over the y-axis and

stretched vertically.

Step-by-step explanation:

since there is a negative, there must be a reflection. the reflection is over the y-axis because it is outside the x-value (-F(x) not F(-x))

the same goes for the vertical stretch. we know it is a vertical stretch because the 3 is outside the x-value (3F(x) not F(3x))

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Pencils cost 0.55 each. A pack of pencils cost $11. Which equation can be used to fined p the number of pencils in one pack

Lerok [7]

$(0.55 \times p) = 11$
$p = (11 \div 0.55)$

8 0

3 years ago

Billy want to buy 12 tickets to take his friends to play. The tickets cost 2.50 each how much will billy pay for all the tickets

Studentka2010 [4]

Answer:

$30

Step-by-step explanation:

To find out how much Billy will pay, just multiply 12 and 2.50

12 x 2.50 = $30

8 0

3 years ago

I need help on finding m

EastWind [94]

Answer:

39°

Step-by-step explanation:

$\angle RUS +\angle SUT = \angle RUT\\\\5x-4+3x+6 = 90\\\\8x+2=90\\\\8x=88\\\\x=11$

and now for SUT

$\angle SUT = 3(11)+6= 33+6 = 39$

4 0

3 years ago

Read 2 more answers

Bob Nale is the owner of Nale's Texaco GasTown. Bob would like to estimate the mean number of litres (L) of gasoline sold to his

Fudgin [204]

Answer:

The point estimate of the population mean is $\= x = 56$

The 80% confidence level is $50.57 < \mu < 61.43$

There is 80% confidence that the true population mean lies within the confidence interval.

Step-by-step explanation:

From the question we are told that

The sample size is n = 18

The standard deviation is $\sigma = 18 \ L$

The sample mean is $\= x = 56$

Generally the point estimate of the population mean is equivalent to the sample mean whose value is $\= x = 56$

Given that the confidence interval is 80% then the level of significance is mathematically represented as

$\alpha = 100 - 80$

$\alpha = 20 \%$

$\alpha = 0.20$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the normal distribution table

The value is $Z_{\frac{ \alpha }{2} } = 1.28$

Generally the margin of error is mathematically evaluated as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }$

=> $E = 1.28 * \frac{18 }{\sqrt{18} }$

=> $E = 5.43$

Generally the 80% confidence interval is mathematically represented as

$\= x - E < \mu < \= x + E$

=> $56 - 5.43 < \mu < 56 + 5.43$

=> $50.57 < \mu < 61.43$

The interpretation is that there is 80% confidence that the true population mean lies within the limit

3 0

3 years ago

Find (4.2) x (1.6) by drawing an area diagram or using another method. Show your reasoning. Pleae answer this I really need help

olchik [2.2K]

Answer:

the answer is 6.72

Step-by-step explanation:

Instead of a diagram you can do 4.2 times 1.6 and after you finishes doing that You put the decimal 2 times and you should get 6.72

8 0

3 years ago