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3 years ago

Help I really need this

Mathematics

1 answer:

Sholpan [36]3 years ago

5 0

The appropriate choices are ...
A. It is decreasing.
B. The y-intercept is (0, 1).
D. The range of F(x) is y > 0.

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What percent of 200 is 290

Crazy boy [7]

145%
200/200: 100%
90/200= 45%

3 0

4 years ago

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In analyzing the city and highway fuel efficiencies of many cars and trucks, the mean difference in fuel efficiencies for the 60

Olegator [25]

Answer:

$7.38-1.96\frac{2.51}{\sqrt{601}}=7.18$

$7.38+1.96\frac{2.51}{\sqrt{601}}=7.58$

For this case the confidence interval is given by :

$7.18 \leq \mu \leq 7.58$

Step-by-step explanation:

Data provided

$\bar X=7.38$ represent the sample mean for the fuel efficiencies

$\mu$ population mean

s=2.51 represent the sample standard deviation

n=601 represent the sample size

Confidence interval

The formula for the confidence interval of the true mean is given by:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom for this case is given by:

$df=n-1=601-1=600$

The Confidence level for this case is 0.95 or 95%, and the significance level $\alpha=0.05$ and $\alpha/2 =0.025$ and the critical value is given by $t_{\alpha/2}=1.96$

Replcing into the formula for the confidence interval is given by:

$7.38-1.96\frac{2.51}{\sqrt{601}}=7.18$

$7.38+1.96\frac{2.51}{\sqrt{601}}=7.58$

For this case the confidence interval is given by :

$7.18 \leq \mu \leq 7.58$

8 0

4 years ago

The 7 percent, semiannual coupon bonds offered by House Renovators are callable in two years at $1,035. What is the amount of th

gayaneshka [121]

Answer:

The call premium is $35

Step-by-step explanation:

Hi, the call premium is found as follows.

$Call Premium=CallPrice-Value$

$CallPremium=1,035-1,000=35$

So, the call premium is $35.

Best of luck.

8 0

4 years ago

( x − 3 ) ( x − 1 ) (x−3)(x−1)

galina1969 [7]

Answer:

x² - 4x + 3

Step-by-step explanation:

When multiplying binomials (two terms in an expression), use FOIL. It stands for the first, outside, inside, and last terms in each bracket.

(x−3)(x−1) Expand with FOIL

= x² - x - 3x + 3 Collect like terms

= x² - 4x + 3

7 0

4 years ago

Hi! I'd appreciate if you could help me on this question.

s2008m [1.1K]

Answer:

Step-by-step explanation:

We need to find the multiples of 8

8,16,24,32,40,48

48 is between 45 and 50 so he must have bought 48

8 0

3 years ago

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