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3 years ago

Solve by using the substitution method. 7x+3y=-37 -5x+y=39

Mathematics

1 answer:

AlladinOne [14]3 years ago

8 0

Your final answer will be x=-7 and y=4. Included a pic. Sorry about the chicken scratch and torn up envelope.

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Construct a stem-and-leaf plot of the test scores 67 comma 72 comma 85 comma 75 comma 89 comma 89 comma 87 comma 90 comma 99 co

VMariaS [17]

Answer:

Option C. Stem Leaves 6 7 7 2 5 8 5 7 9 9 9 0 9 10 0

Option D.

Step-by-step explanation:

The data values are 67, 72, 85, 75, 89, 89, 87, 90, 99 and 100.

Arranging the data values in ascending order

67, 72, 75, 85, 87, 89, 89, 90, 99, 100

The stem and lead plot can be shown under and stem is denoted as "S" whereas leaves are denoted as "L".

S L

6 7

7 2 5

8 5 7 9 9

9 0 9

10 0

The longer row of stem indicates the higher frequencies and so the length of rows are similar to the heights of bars in histogram.

5 0

3 years ago

Helpppppppppp please somebody

marissa [1.9K]

Would for more points

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3 years ago

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Determine the measure of x, to the nearest tenth of a degree.

Masteriza [31]

Answer:

About 73 degrees

Step-by-step explanation:

By the law of cosines:

$26^2=11^2+27^2-2(11)(27)\cos(x) \\\\\\676=121+729-594\cos(x) \\\\\\-174=-594\cos(x) \\\\\\\cos(x)= 0.\overline{29} \\\\\\x\approx 73.0^{\circ}$

Hope this helps!

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3 years ago

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Find the<br> equation of the circle with center at (3, -2) and radius of 3.

kvasek [131]

(x-3) *squared* + (y + 2) *squared* = 6

4 0

3 years ago

What is the area of a circle of 11 using pie

ehidna [41]

94.985 using 3.14 or 95.033 using pie directly

Step-by-step explanation:

This is the answer if the radius is 5.5, half of 11. square it multiply by pie

7 0

3 years ago

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