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3 years ago

Which of the following is true of a rectangle, but may not be true of a parallelogram.

Mathematics

1 answer:

natulia [17]3 years ago

3 0

Answer:

Diagonals are congruent

Step-by-step explanation:

In rectangle, diagonals are congruent.

But in parallelogram diagonals are not congruent

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Find the 14th term of the geometric sequence 7, 28, 112,

Fed [463]

Answer:

a(14)=469762048

Step-by-step explanation:

geometric sequence= a(n)=a*r^(n-1)

we have:

a=7

r=28/7=4

So:

a(14)=7*4^(14-1)

=7*4^(13)

=469762048

hope this helps

6 0

2 years ago

Is it possible to draw a triangle with these

trasher [3.6K]

Answer:

Yes

Step-by-step explanation:

We have many triangles and we have Isoceles, equilateral and right angled triangle

And when you look at those measurements we can actually construct a right angled triangle from the above measurements.

Hope its Helpful.

Plz brainliest

6 0

2 years ago

Read 2 more answers

Plz help asap thank you

attashe74 [19]

Answer:

Solved using the <u>Exterior angle theorem</u>.

2x-5+x-17 = 128

3x-22 = 128

3x = 150

x = 50

8 0

2 years ago

What is the value of x? 6.75+3/8x=13 1/4

zysi [14]

Your answer is x=17 1/3

4 0

3 years ago

Read 2 more answers

2. Solve the system of equations. Write your answer in parametric vector notation. X, +5x2 + 4x3 + 3x4 +9xs = 18 2x, +6x2 + 4x3

ratelena [41]

Answer:

The system is inconsistent.

Step-by-step explanation:

The system is

$x_1+5x_2+4x_3+3x_4+9x_5=18\\2x_1+6x_2+4x_3+6x_4+6x_5=28\\3x_1+7x_2+4x_3+10x_4+x_5=41\\4x_1+6x_2+2x_3+7x_4+4x_5=29$

The associated matrix to the system is

$\left[\begin{array}{cccccc}1&5&4&3&9&18\\2&6&4&6&6&28\\3&7&4&10&1&41\\4&6&2&7&4&29\end{array}\right]$

Now we use row operations to find the echelon form of the matrix:

1. We substract to row 2, two times the row 1.

We substract to row 3, three times the row 1.

We substract to row 4, four times the row 1 and obtain the matrix

$\left[\begin{array}{cccccc}1&5&4&3&9&18\\0&-4&-4&0&-12&-8\\0&-8&-8&1&-26&-13\\0&-14&-14&-5&-32&-43\end{array}\right]$

2. We multiply the second row of the preview step by -1/4. We obtain the matrix

$\left[\begin{array}{cccccc}1&5&4&3&9&18\\0&1&1&0&3&2\\0&-8&-8&1&-26&-13\\0&-14&-14&-5&-32&-43\end{array}\right]$

We add to row 3, eight times the row 2.

We add to row 4, fourtheen times the row 2 and obtain the matrix

$\left[\begin{array}{cccccc}1&5&4&3&9&18\\0&1&1&0&3&2\\0&0&0&1&-2&3\\0&0&0&-5&10&-155\end{array}\right]$

4. We add to row 4 of the preview step, five times the row 3 and obtain the matrix

$\left[\begin{array}{cccccc}1&5&4&3&9&18\\0&1&1&0&3&2\\0&0&0&1&-2&3\\0&0&0&0&0&-140\end{array}\right]$

Using backward substitution we have that

$0x_5=-140$ , then $0=-140$ and this is absurd. Then The system is inconsistent.

4 0

3 years ago