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3 years ago

If the area of a square is 361cm then the length of its side is

Mathematics

1 answer:

yawa3891 [41]3 years ago

4 0

Answer:

90,25 cm

Step-by-step explanation:

The sides of the square have all the same length.

So we can do like this:

length of the side: √361

length of the side: 90,25 cm

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Solve using substitution. y = -2 -7x - y = -5

Natasha_Volkova [10]

Step-by-step explanation:

$- 7x - ( - 2) = - 5 \\ - 7x + 2 = - 5 \\ - 7x = - 7 \\ x = 1 \\$

5 0

3 years ago

A test requires that you answer first Part A and then either Part B or Part C. Part A consists of 4 true false questions, Part B

erma4kov [3.2K]

Answer: 374416

Step-by-step explanation:

Given : A test requires that you answer first Part A and then either Part B or Part C.

Part A consists of 4 true false questions, Part B consists of 6 multiple-choice questions with one correct answer out of five, and Part C consists of 5 multiple-choice questions with one correct answer out of six.

i.e. 2 ways to answer each question in Part A.

For 4 questions, Number of ways to answer Part A = $2^4$

5 ways to answer each question in Part B.

For 6 questions, Number of ways to answer Part B = $5^6$

6 ways to answer each question in Part C.

For 5 questions, Number of ways to answer Part C = $6^5$

Now, the number of ways to completed answer sheets are possible :_

$2^4\times5^6+2^4\times6^5\\\\=2^4(5^6+6^5)\\\\=16(15625+7776)\\\\=16(23401)=374416$

Hence, the number of ways to completed answer sheets are possible = 374416

8 0

4 years ago

Armando graphed the relationship between temperature and elevation for several cities. The x-coordinate is the elevation in mete

Brums [2.3K]

Quadrant III

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7 0

3 years ago

Determine the solution to f(x) = g(x) using the following system of equations: (5 points) f(x) = 3x − 23 g(x) = −4.5x + 7

jeka94

Answer:

(The solution is (4, -11).

Step-by-stp explanation:

Let f(x) = g(x) = y:

y = 3x − 23

y = -4.5x + 7 Subtract the second equation from the first to eliminate y:

0 = 7.5x - 30

7.5x = 30

x = 4

Plug this into the first equation:

y = 3(4) - 23

y = -11.

5 0

4 years ago

The sun shines at a 30° angle to the ground. To the nearest inch, how long is the shadow cast by a 72-in. tall fence post?

tensa zangetsu [6.8K]

The length of the shadow is 124.7 in

Explanation:

Given:

Angle, θ = 30°

Height of the fence, h = 72 in

Length of the shadow, l = ?

Given:

tan 30° = $\frac{perpendicular}{base} = \frac{height of the fence}{length of the shadow}$

$\frac{1}{\sqrt{3} } = \frac{72}{l} \\\\l = 72\sqrt{3} \\\\l = 124.7 in$

Therefore, the length of the shadow is 124.7 in

5 0

3 years ago