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3 years ago

Is parallelogram ABCD a rectangle?

Mathematics

1 answer:

Fantom [35]3 years ago

6 0

Answer:

Step-by-step explanation:

Sides AB to DC aren't congruent/parallel

Sides BC to AD aren't congruent/parallel

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Olenka [21]

Each time a rider is added, the cost of lunch goes up $4.25. L=n4.25

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3 years ago

It cost sam $9.30 to purchase a duck float. He then marks the price up by 50%. How much does sam charge for the duck float?

Alina [70]

Answer: $13.95

50%+ of 9.30 is 13.95 (if you do the math)

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2 years ago

WILL GIVE BRAINLIEST AND 25 POINTS! Which of the following statements are true? Check all that apply. A. If any row of a square

sertanlavr [38]

Answer:

Option A, B and E

Step-by-step explanation:

Determinant = ad-bc

Let's look at the picture and solve all

Option A)

If the row ( c and d ) is zero, the determinant will be zero

=> a(0)-b(0)

=> 0-0

=> 0 (So, True)

Option B)

If a = b = c = d (Let's say 1), the determinant will be

=> (1)(1)-(1)(1)

=> 1-1

=> 0 (So, True)

Option C)

An Identity matrix is

=> $\left[\begin{array}{ccc}1&0\\0&1\end{array}\right]$

So , it's determinant will be

=> (1)(1)-(0)(0)

=> 1-0

=> 1 (So, False)

Option D)

The determinant with matrix will all positive numbers can be negative as well as positive. This is not necessary that it would be positive. (So, False)

Option E)

A zero matrix is

=> $\left[\begin{array}{ccc}0&0\\0&0\end{array}\right]$

So, it's determinant is:

=> (0)(0)-(0)(0)

=> 0-0

=> 0 (So,True)

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3 years ago

What is the graph of y= -4x -1?

alisha [4.7K]

Here is the graph if u need coordinates let me know

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3 years ago

Read 2 more answers

If triangle ABC is rotated 90° clockwise about the origin, what will be the new coordinates of vertex A?

denis23 [38]

Answer:

your answer is (4, -1)

Step-by-step explanation:

brainliest pls

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3 years ago