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mojhsa [17]
3 years ago
8

Which of the following statements is true?

Mathematics
2 answers:
mash [69]3 years ago
6 0

Answer:

d

Step-by-step explanation:

Sholpan [36]3 years ago
6 0

Answer: A

Step-by-step explanation: I cant explain it, im 99999% sure im rigt! :)

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A girls' track team must run 3 miles on the first day of practice and 6 miles every day after that. The boys' team must run 5 mi
Elis [28]

Answer:

The 4th day so 21 miles the girls would have to run

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
An element with mass 630 grams decays by 18.8% per minute. How much of the
LenaWriter [7]

Answer:

-199.1

Step-by-step explanation:

18.8% × 7= 131.6%

630×131.6=82908   move the decimal two places to the left you get 829.08

630-829.08= -199.08 round to the nearest tenth you get -199.1

7 0
2 years ago
Which of the following are vertical asymptotes of the function y=3cot(1/2x)-4? A. 3pi B. 2pi C. pi/2 D. 0
puteri [66]
A vertical asymptote occurs when function limit goes to infinity.

cot is reciprocal of tangent.

cot = 1/tan, Find where tan = 0, since 1/0 goes to infinity.

tan(a) = 0 when a = 0,pi

Now Apply coefficient inside cot function.
x/2 = 0,pi
x = 0, 2pi

Therefore, vertical asymptotes occur when x = 0 or 2pi
4 0
3 years ago
Read 2 more answers
HELP ASAP<br><br><br><br> GEOMETRY<br> .<br> .<br> .<br> .<br> .<br> .
lukranit [14]

Answer:

1.  y = -(2/5)x - (1/5)

2. y = -(9/5)x - 4

Step-by-step explanation:

For 1:

Step 1:  rewrite the equation of the given line in to slop-intercept form by solving for y

 2x + 5y = 15    

     5y = -2x + 15               (subtract 2x from both sides)

        y = -(2/5)x + 3           (divide both side by 5)

Step 2:  Our line is parallel to this line, so it has the same slope, but a different  y-intercept, so set up the equation...

  y = -(2/5)x + b      

We are given a  point (x, y) of (2, -1), so plug that in and solve for b.

 -1 = -(2/5)(2) + b

    -1 = -4/5 + b      (simplify)

        4/5 -1 = b      (add 4/5 to both sides to isolate b)

        4/5 - 5/5 = b

             -1/5 = b            

So the equation of our line is  y = -(2/5)x - (1/5)

For 2:  

Step 1:  Perpendicular lines have slopes that are opposite reciprocals of each other.  That means you take the slope, flip the fraction, and change the sign.

Here our given line is y = (5/9)x - 4 so the slope 5/9

The opposite reciprocal of 5/9 is -9/5

We set up the equation

y = -(9/5)x + b      

  we are given a point (x, y) of (-5, 5), so plug that in and solve for b

5 = -(9/5)(-5) + b

    5 = 9 + b

     -4 = b  

So our equations is  y = -(9/5)x - 4

       

6 0
3 years ago
Jelly beans cost $15.98 for a 2 kg bag. At this rate, how much would 7 kg cost
max2010maxim [7]

Answer:

lets see every 2kg bag its 15.98 so every 4kg its 31.96 and for every 6kg its 47.94 so if every 1kg its 7.99 so add 47.94 + 7.99 you get 55.93

Step-by-step explanation:

4 0
2 years ago
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