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love history [14]
2 years ago
7

A Square has an area of 324cm^2 . What is the squares’s perimeter?

Mathematics
1 answer:
a_sh-v [17]2 years ago
3 0

Answer:

72cm

Step-by-step explanation:

A=a^2

p=4a

p=4√A=4x√324=72 cm

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Mai-li has 6 1/3 yd of material. Her new skirt will take 2 1/3 yd. How much material will she have left after the skirt is made?
adoni [48]
6 1/3 – 2 1/3 = 4
She'll have 4 yards left over.
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3 years ago
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Find the equation of the line through the points (−2,5) and (4,9).
3241004551 [841]

9514 1404 393

Answer:

  2x -3y = -19

Step-by-step explanation:

Taking the differences between the given points, we have ...

  (Δx, Δy) = (4, 9) -(-2, 5) = (6, 4)

The equation of the line can be written ...

  Δy·x -Δx·y = Δy·(x1) -Δx·(y1) . . . . . for point (x1, y1) on the line

  4x -6y = 4(-2) -6(5) = -38

Dividing by 2 gives the standard form equation ...

  2x -3y = -19

_____

<em>Additional comment</em>

The original equation 4x-6y=-38 satisfies the requirements of this problem. However, "standard form" requires the numbers in the equation be mutually prime (in addition to the problem requirements). That is, they must have no common factors. Hence, we must remove the common factor of 2 in order to have true "standard form."

8 0
2 years ago
1.28 x 10^5) + (113 x 10^3)=​
Evgesh-ka [11]

Answer:

241,000

Step-by-step explanation:

When multiplying a number with a base of 10 raised to the nth power. Move the decimal point of that number n digits to the right.

(1.28 \times  {10}^{5} ) + (113 \times  {10}^{3} )

128000  \:  +  \: 113000

241000

4 0
3 years ago
Solve for p.
8090 [49]

Answer:

Step-by-step explanation:

2 |p| = 14

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3 0
3 years ago
The sum of all but one interior angle of a heptagon is 776°. What is the measure of the final interior angle? 42º 56º 124º 3
weqwewe [10]

The measure of the seventh <em>interior</em> angle of the heptagon is 124°. (Correct choice: C)

<h3>What is the measure of the missing interior angle in a heptagon?</h3>

Heptagons are polygons with seven sides, seven vertices, seven <em>interior</em> angles and seven <em>central</em> angles. Herein we know the value of the sum of six interior angles and we need to know the measure of the seventh <em>interior</em> angle. We can determine the measure of the seven interior angles by using the following expression:

θ = (n - 2) · 180°, where n is the number of sides of the polygon.     (1)

If we know that n = 7, then sum of the internal angles in the heptagon is:

θ = (7 - 2) · 180°

θ = 900°

And the measure of the final interior angle is found by subtraction:

θ₇ = 900° - 776°

θ₇ = 124°

The measure of the seventh <em>interior</em> angle of the heptagon is 124°. (Correct choice: C)

To learn more on polygons: brainly.com/question/17756657

#SPJ1

3 0
1 year ago
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