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Dafna11 [192]
2 years ago
6

Evaluate the determinant for the following matrix [3 -5 / 1 1]

Mathematics
1 answer:
Natalka [10]2 years ago
6 0

Answer:

<h2>A. -2</h2>

Step-by-step explanation:

\det\left[\begin{array}{ccc}a&b\\c&d\end{array}\right] =ad-bc\\\\\det\left[\begin{array}{ccc}3&-5\\1&1\end{array}\right] =(3)(1)+(-5)(1)=3-5=-2

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i need exercise #4 on part b on the right pls only ask concerns in comment box below dont waste answers ,thanks
madreJ [45]
17/13= 1.30769231 or 130%
5 0
2 years ago
Y=5/2x-19 and 5x+2y=-8 a perpendicular,parallel or intersecting lines?
dimaraw [331]

Answer:

There intersecting lines

Step-by-step explanation:

5x+2y=-8

-5x            -5x

2y=-8 -5x

/2   /2  /2

y=-4 -5/2x also

y=-5/2x - 4

&

y=5/2x - 19

neither parallel (slope is not the same)

or perpendicular (slope is not reciprocal or opposite signed)

hope i helped

6 0
3 years ago
What function is a quadratic function
Nikolay [14]
The answer is d or the last one
5 0
2 years ago
Read 2 more answers
What are Three common multiples of 3 and 2?
Akimi4 [234]

Answer:

Common multiples of 2 and 3 include 6, 12, 18, and 24.

Step-by-step explanation:

A common multiple is a number that is a multiple of two or more numbers.

6 0
3 years ago
You make punch for a party. The ratio og ginger ale to fruit juice is 8 cups to 3 cups. You decide to add 4 more cups of ginger
Dvinal [7]
To get the answer we can use proportion
8 ginger ----------------- 3 fruit
12 ginger ----------------x
Crossmultiply now
8x=12*3                /:8
x=\frac{12*3}{8}
x=<u />\frac{36}{8}  \\ x=4.5
To not change ratio we have to have 4.5 cups of fruilt juice. We initialy had 3, so we have to add 1.5 cup of fruit juice.
7 0
3 years ago
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