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lapo4ka [179]
2 years ago
7

 Solve each system by graphing.

Mathematics
1 answer:
Kryger [21]2 years ago
3 0

9514 1404 393

Answer:

  (x, y) = (4, -4)

Step-by-step explanation:

A graphing calculator makes graphing very easy. The attachment shows the solution to be (x, y) = (4, -4).

__

The equations are in slope-intercept form, so it is convenient to start from the y-intercept and use the slope (rise/run) to find additional points on the line.

The first line can be drawn by staring at (0, -2) and moving down 1 grid unit for each 2 to the right.

The second line can be drawn by starting at (0, 2) and moving down 3 grid units for each 2 to the right.

The point of intersection of the lines, (4, -4), is the solution to the system of equations.

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Chris sharpened 3 boxes of pencils. There are 12 pencils in each box. 7 pencils broke. How many sharpened pencils does Chris now
tester [92]
 there would be 29 pencils left because 3 * 12 is 36 minus 7 is 29
3 0
3 years ago
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What is the volume of this solid? Use 3.14 for pi. 37.68 cm³ 138.16 cm³ 169.56 cm³ 207.24 cm³ A solid consisting of a cone on to
yulyashka [42]
Volume of Solid = Volume of Cylinder + Volume of Cone
Volume of Cylinder = πr²h
v= 3.14 * (3)² * 6
v = 169.56

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v = 37.7

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Hope this helps!
8 0
3 years ago
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Which of the following is the interest on $6000 at 6% compounded semiannually for eight years?
ryzh [129]

Answer:

$3628.24

Step-by-step explanation:

we use the formula for accrued value (A) with compounded interest:

A=P(1+\frac{r}{n})^{n*t}

where A= accrued value (principal plus the accumulated  interest)

P = principal -> in our case $6000

r = annual interest rate (in decimal form) -> in our case 0.06

n = number of compoundings per year. In our case 2 (semiannually)

t = time in years -> in our case 8

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$9628.24 - $6000 = $3628.24

4 0
2 years ago
Lola rode her bike for 7/10 of an hour on Saturday and 3/5 of an hour on Sunday. How much longer did she ride her bike on Saturd
s344n2d4d5 [400]
1 hr = 10/10
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Saturday she rode her bike for  42 min
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1 hr = 5/5
1/5 of an hr = 12 min
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On sunday she rode her bike for 36 min
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She rode her bike 6 min longer on saturday than sunday
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3 years ago
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katovenus [111]
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