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2 years ago

HELP I NEED HELP ASAP

Mathematics

1 answer:

wolverine [178]2 years ago

5 0

Answer:

Only the mean increased.

Step-by-step explanation:

The mean is the total divided by the number of scores, and since adding 21 will increase the total score significantly, the mean increases.

The median is still 7.

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A box contains 16 cherry fruit chews,15 beach fruit chews ,and 12 plum fruit chews .which two flavors are in the ratio 5 to 4

olga_2 [115]

The beach (wt_f) and the plum chews.

7 0

3 years ago

Read 2 more answers

The point (17,−9) is translated to the point (6,2). Select the description of the translation.

zubka84 [21]

Answer:

11 up , 11 left

Step-by-step explanation:

Given

$(17, -9)$ to $(6,2)$

Required

Determine the translation rule

Considering the x coordinates.

From 17 to 6

6 is to the left of 17.

Using the translation rule:

$x = x' + b$

$17 = 6 + b$

$17 - 6 = b$

$11 = b$

$b = 11$

<em>Hence: From 17 to 6 is 11 units left translation</em>

Considering the y coordinates.

From -9 to 2

2 is at the top -9.

Using the translation rule:

$y = y' + b$

$-9 = 2 + b$

$-9 - 2 = b$

$-11= b$

$b = -11$

The negative value impies a upward translation.

Hence: From -9 to 2 is 11 units up translation

4 0

2 years ago

Latrell is going to put chocolate ice cream in x bowls for his friends. He will put 0.75 cups of ice cream in each bowl. Which e

krek1111 [17]

Answer:

0.75 cups of ice cream

x bowls

t is the total number of cups of ice cream

.75x = t

example"

If you have 5 bowls.

.75 (cups of ice cream) * 5 (bowls) = 3.75 cups of ice cream needed

Step-by-step explanation:

6 0

3 years ago

I need help please.

Greeley [361]

Answer is C).

One way to find the answer is to multiply the $54 by .30 (which is 30%converted to a decimal). Doing this will give you what 30% of $54 is.
This gives you 16.2
Since the question is asking what 30% off the price is, subtract the 16.2 from the $54.

5 0

3 years ago

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

3 years ago