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3 years ago

Two congruent figures have the same perimeter. O sometimes O Never O Always

Mathematics

1 answer:

Tanzania [10]3 years ago

5 0

Answer:

always

Step-by-step explanation:

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Pythagorean theory . Thank you

svp [43]

Answer:

b=12, perimeter=36

7 0

3 years ago

Using Cramer's rule to solve linear systems.

Rzqust [24]

Answer: Last Option

$x=2,\ y=-5$

Step-by-step explanation:

Cramer's rule says that given a system of equations of two variables x and y then:

$x =\frac{Det(A_X)}{Det(A)}$

$y =\frac{Det(A_Y)}{Det(A)}$

For this problem we know that:

$Det(A) = |A|=\left|\begin{array}{ccc}4&-6\\8&-2\\\end{array}\right|$

Solving we have:

$|A|= 4*(-2) -(-6)*8\\\\|A|=40$

$Det(A_X) = |A_X|=\left|\begin{array}{ccc}38&-6\\26&-2\\\end{array}\right|$

Solving we have:

$|A_X|=38*(-2) - (-6)*26\\\\|A_X|=80$

$Det(A_Y) = |A_Y|=\left|\begin{array}{ccc}4&38\\8&26\\\end{array}\right|$

Solving we have:

$|A_Y|=4*(26) - (38)*8\\\\|A_Y|=-200$

Finally

$x =\frac{|A_X|}{|A|} = \frac{80}{40}\\\\x=2$

$y =\frac{|A_Y|}{|A|} = \frac{-200}{40}\\\\y=-5$

4 0

3 years ago

Find the median of the set of data. <br><br> 4, 16, 7, 10, 15, 11, 13, 20

Rainbow [258]

The median is twelve [12].

8 0

3 years ago

Read 2 more answers

What is the answer to this equation 11(-2)

kolbaska11 [484]

Answer:

The answer is -22

Step-by-step explanation:

remove the parentheses then you have 11 * -2 = -22

I am happy to assist :)

5 0

4 years ago

Read 2 more answers

For a button to fit through its button-hole the hole needs to be the size of the buttons diameter what size buttonhole is needed

Lena [83]

Answer:the size of the button hole is 2.35 cm

Step-by-step explanation:

For a button to fit through its button-hole, the hole needs to be the size of the buttons diameter.

The formula for determining the circumference of a circle is expressed as

Circumference = πd or 2πr

Where

d represents the diameter of the circle

π is a constant given as 3.14

From the information given, the circumference of the button is 7.38 cm. Therefore, the diameter of the button will be

d = circumference/π = 7.38/3.14

d = 2.35 cm

3 0

3 years ago