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1 year ago

Which function has the greatest y-intercept?

Mathematics

2 answers:

forsale [732]1 year ago

3 0

Answer:

Step-by-step explanation:

edg 22'

Sergio [31]1 year ago

3 0

Answer:

Second one from the left

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A 5-lb bag of apples costs 4.50 and an 8-lb bag of the same type of apple costs 7.52. Greg found the unit price which is the con

tester [92]

Answer:

The unit price of 5-lb bag is less than the unit price of 8lb bag.

Step-by-step explanation:

Consider the provided information.

We need to calculate the unite price,

It is given that A 5-lb bag of apples costs 4.50

Calculate the unit price as shown:

$\frac{Cost}{weight} =\frac{4.50}{5}$

We need the cost of 1 l b .

$\frac{Cost}{weight} =\frac{4.50\div5 }{5\div 5}$

$\frac{Cost}{weight} =\frac{0.90}{1}$

So, the cost of 1lb of apple is $0.90.

8-lb bag of the same type of apple costs 7.52.

Calculate the unit price as shown:

$\frac{Cost}{weight} =\frac{7.52}{8}$

We need the cost of 1 l b .

$\frac{Cost}{weight} =\frac{7.52\div8 }{8\div 8}$

$\frac{Cost}{weight} =\frac{0.94}{1}$

So, the cost of 1lb of apple is $0.94.

Therefore, the unit price of 5-lb bag is less than the unit price of 8lb bag.

8 0

3 years ago

A new post-surgical treatment is being compared with a standard treatment. Seven subjects receive the new treatment, while seven

a_sh-v [17]

Answer:

$(17.714-28.714) -2.681 \sqrt{\frac{4.461^2}{7} +\frac{7.387^2}{7}}= -19.745$

$(17.714-28.714) +2.681 \sqrt{\frac{4.461^2}{7} +\frac{7.387^2}{7}}= -2.255$

Step-by-step explanation:

For this case we have the following info given:

Treatment: 12 13 15 19 20 21 24

Control: 18 23 24 30 32 35 39

We can find the sample mean and deviations with the the following formulas:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

$s =\sqrt{\frac{\sum_{i=1}^n (X_i- \bar X)^2}{n-1}}$

And repaplacing we got:

$\bar X_T = 17.714$ the sample mean for treatment

$\bar X_C = 28.714$ the sample mean for treatment

$s_T= 4.461$ the sample deviation for treatment

$s_C= 7.387$ the sample deviation for control

$n_T= n_C= 7$ the sample size for each sample

The degrees of freedom are given by:

$df= 7+7-2= 12$

The confidence interval for the difference of means is given by:

$(\bar X_T -\bar X_C) \pm t_{\alpha/2} \sqrt{\frac{s^2_T}{n_T} +\frac{s^2_C}{n_C}}$

The confidence is 98% so then the significance is $\alpha=0.02$ and $\alpha/2 =0.01$ . Then the critical value would be:

$t_{\alpha/2}=2.681$

And replacing we got:

$(17.714-28.714) -2.681 \sqrt{\frac{4.461^2}{7} +\frac{7.387^2}{7}}= -19.745$

$(17.714-28.714) +2.681 \sqrt{\frac{4.461^2}{7} +\frac{7.387^2}{7}}= -2.255$

4 0

3 years ago

Help! What is x? Someone please explain, explanation and answer.

luda_lava [24]

Answer:

x=11 degrees

Step-by-step explanation:

First what you would do is add 6x and 5x-7 to get 11x-7 degrees. Then you double that by using opposite angles theorem to get 22x-14 as the answer of two angles. Next you double 7x-11 to get 14x-22 by using the same theorem as the last one. then you do 14x-22+22x-14=360 degrees then you get your final answer of x=11 degrees

4 0

3 years ago

Round to the nearest tenth of a percent, if necessary. 7.20 kg to 8.28 kg

Natasha2012 [34]

7.00 is the nearest tenth

4 0

3 years ago

2000000×10 what's the answer I already know and send me friend requests

slavikrds [6]

Is 20000000 all do is add another zero ^_^

8 0

3 years ago

Read 2 more answers