Please help me out with this!

Mathematics

1 answer:

olganol [36]3 years ago

3 0

A. y-intercept

B. The slope is 3/4, the y-intercept is 0

C. For this one you need to put it in y-intercept form. So, you subtract 2x, and move it over to 12. The equation would look like 6y = 2x + 12.

Then, divide everything by 6, and the equation would look like: y = 2/6x + 2

Thus, the slope is 2/6x and 2 is the y-intercept.

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Are these correct? Thanks.

aniked [119]

8 and 10 aren't functions. In a function each input has only one output.
For 8, input 1 = 4, 7
For 10,input 3=7, 6

5 0

3 years ago

For a t distribution with 16 degrees of freedom, find the area, or probability, in each region.

cluponka [151]

Answer:

We are given the t distribution with 16 degrees of freedom.

We have to find the area a. to the right of 2.120

Answer: We can use excel to find the area to the right of 2.120. The excel function is:

=TDIST(2.120,16,1) = 0.025

Therefore, the area to the right of 2.120 is 0.025

b. to the left of 1.337.

Answer: We can use excel to find the area to the left of 1.337. The excel function is:

=1 - TDIST(1.337,16,1) = 0.900

Therefore, the area to the left of 1.337 is 0.900

4 0

3 years ago

^^^^^^^^^^^^^^^^^^^^

Sladkaya [172]

<h2>Hello!</h2>

The answer is:

The correct option is:

A) $74.55

To calculate how much does Sonya pay for the four pairs altogether, we need to calculate the original price after the 50% discount and the taxes.

Calculating we have:

$PriceAfterDiscount=35*50(percent)=35*\frac{50}{100}\\\\35*\frac{50}{100}=35*0.5=17.5$

We have that before the tax, the price of the shoes was $17.5, then, calculating the price after the taxes, we have:

$AfterTaxes=17.5(1+6.5(percent))=17.5(1+\frac{6.5(percent)}{100})\\\\AfterTaxes=17.5(1+\frac{6.5(percent)}{100})=17.5*(1+0.065)\\\\AfterTaxes=17.5*(1+0.065)=17.5*1.065=18.637$