2 years ago

Find the perimeter of a regular polygon with an interior angle of 90° and side length 3.5 ft.

Mathematics

1 answer:

PSYCHO15rus [73]2 years ago

6 0

Answer:

p=14 ft

Step-by-step explanation:

The figure that meets these conditions is the square

The perimeter:

4(3.5) = 14 ft.

Hope this helps

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PLEASE HELP!! emir learns to perform 2 vocal pieces during each week of lessons. how many weeks of lessons will emir need before

Semenov [28]

Answer:

Step-by-step explanation: divide 4 by 2 its 2!

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3 years ago

Two solutions of the equation Ax+By = 1 are (2, -1) and (-3,-2). Find A and B.

kati45 [8]

Answer:

Substitute in the values of both given coordinates & form 2 equations:

$\left \{ {{A(2)+B(-1)=1} \atop {A(-3)+B(-2)=1}} \right. \\\\=\left \{ {{2A-B=1} \atop {-3A-2B=1}} \right.$

Find the value of B from the equation 2A - B = 1:

$2A-B=1\\-B=1-2A\\B=2A-1$

Substitute in the B-value to the other equation:

$-3A-2B=1\\-3A-2(2A-1)=1\\-3A-4A+2=1\\-7A=1-2\\-7A=-1\\A=\frac{-1}{-7} =\frac{1}{7}$

Find the B-value using the equation from before:

$B=2A-1=2(\frac{1}{7})-1=\frac{2}{7} -\frac{7}{7} =-\frac{5}{7}$

Therefore the equation Ax + By = 1 would equal:

$\frac{1}{7} x-\frac{5}{7} y=1$

4 0

3 years ago

10 is 25% of what number?

Zanzabum

Answer:

Step-by-step explanation:

25%= $\frac{1}{4}$

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8 0

3 years ago

Read 2 more answers

Which number line represents the solution set for the inequality 1x24?

coldgirl [10]

Answer:

2 should be the correct one.

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3 years ago

Each music class sings 8 songs a week. How. Many songs does each class sing in 5 weeks 6 weeks 7 weeks

crimeas [40]

Answer:

40, 48, 56

Step-by-step explanation:

8x5 is 40

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I hope this helps have a good day

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3 years ago