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2 years ago

Which group of numbers is listed from least to greatest?

Mathematics

2 answers:

LuckyWell [14K]2 years ago

7 0

|-4|, 5, |-6|, 7, |-8|

Oksi-84 [34.3K]2 years ago

3 0

He fourth one: 4,5,6,7,8...if it has those two bars || it means absolute value which basically means if its negative you just change it to a posotive :)

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Which figure is the pre-image? Which figure is the image after the first transformation? Which figure is the image after the sec

Delvig [45]

Answer:

I believe the red one is the first image then the blue then the green because they show the prime sign

Step-by-step explanation:

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2 years ago

If the cubic container had a volume of 1,728 in³, what would its dimensions be?

sineoko [7]

Answer:

12 inches × 12 inches × 12 inches

Step-by-step explanation:

Cube volume is $s^3$

$s^3=1728$

$s=\sqrt[3]{1728}$

$s=12$

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2 years ago

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Use the given information and a calculator to find to the nearest tenth of a degree

Schach [20]

Answer:

111.4 degrees

Step-by-step explanation:

Let's write cos x = -0.3646. Or, look up the symbols chart at the bottom of your page and click on Ф to obtain this character: cos Ф = -0.3646.

If Ф is in Quadrant III, then the adjacent side is negative and the hypotenuse is positive.

-1

Type this into your calculator: cos -0.3646. Result: 1.934 (radians)

This converts to degrees as follows:

1.934 rad 180 degr

--------------- * --------------- = 111.4 degrees. Note that this angle is in QIII.

1 π rad

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2 years ago

Kelly has 1/2 of a gallon of milk left in her refrigerator. She drank 3/4 of it. What fraction of gallon of milk is left in the

Colt1911 [192]

1/4
3/4-1/2=1/4
1/2=2/4

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2 years ago

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A major retail clothing store is interested in estimating the difference in mean monthly purchases by customers who use the stor

mixer [17]

Answer:

Critical value is t = 1.9901

Step-by-step explanation:

We are given the results of the sampling :

In-House Credit Card National Credit Card Sample Size : 32 50

Mean Monthly Purchases : $45.67 $39.87

Standard Deviation : $10.90 $12.47

Also, the managers wished to test whether there is a statistical difference in the mean monthly purchases by customers using the two types of credit cards, using a significance level α of 0.05.

Firstly, we will specify our null and alternate hypothesis;

Let $\mu_1$ = Mean Monthly Purchases of In-House Credit Card

$\mu_2$ = Mean Monthly purchases of National Credit Card

So, Null Hypothesis, $H_0$ : $\mu_1-\mu_2$ = 0 {means that there is no difference in the mean monthly purchases by customers using the two types of credit cards}

Alternate Hypothesis, $H_0$ : $\mu_1-\mu_2\neq$ 0 {means that there is statistical difference in the mean monthly purchases by customers using the two types of credit cards}

The test statistics that will be used here is Two-sample t-test statistics;

T.S. = $\frac{(\bar X_1-\bar X_2)-(\mu_1-\mu_2)}{s_p \sqrt{\frac{1}{n_1}+\frac{1}{n_2} } }$ ~ $t_n___1+n_2-_2$

where, $\bar X_1$ = Sample mean Purchases of In-House Credit Card = $45.67

$\bar X_2$ = Sample mean Purchases of National Credit Card = $39.87

$s_p$ = pooled variance

$n_1$ = In-house credit card sample = 32

$n_2$ = National credit card sample = 50

So, degree of freedom of t-value here is (32 + 50 - 2) = 80

Now, at 0.05 significance level, t table gives critical value of t = 1.9901 at 80 degree of freedom.

Therefore, the critical value assuming the population standard deviations are not known but that the populations are normally distributed with equal variances is t = 1.9901.

4 0

2 years ago