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Anni [7]
3 years ago
10

{ 4 QUESTIONS } Need Help!!

Mathematics
1 answer:
Degger [83]3 years ago
4 0

Answer:

1. A

2.C

3.C

4.C

Step-by-step explanation:

1. 16-(-11) would be 16+11, which equals 27

2. 7-(-16) is just 7+16, which is 23

3. -12-39, You add 39 to 12, which is 51, and add the Negative sign so its C.51

4. Step by step, 5-8 is -3, and -3+-13 would be 10.

Calculators Help!

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natulia [17]
8/9 x 3/5 = 24/45

24/45 is your answer

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5 0
3 years ago
I’ve been stuck can someone help
never [62]

Answer:

(a). A_{x} = \left[\begin{array}{cc}12&-4\\66&6\end{array}\right]

Step-by-step explanation:

\left \{ {{5x-4y=12} \atop {3x+6y=66}} \right.

A = \left[\begin{array}{cc}5&-4\\3&6\end{array}\right]

A_{x} = \left[\begin{array}{cc}12&-4\\66&6\end{array}\right]

A_{y} = \left[\begin{array}{cc}5&12\\3&66\end{array}\right]

5 0
3 years ago
How long is the diagonal of this rectangul
pickupchik [31]
We gots a right triangle withe legs 8 and 15

remember if we got a right triangle with legs length a and b and hytponuse c then
a²+b²=c²

so

diagonal=c

so
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64+225=c²
289=c²
sqrt both sides
17=c
the diagonal is 17in
8 0
4 years ago
Which of the following sentences could not be used to represent the equation y/2 = 14?
svetlana [45]
Two divided by a number yields fourteen would be represented by the equation 2/y=14, and that is not right. So, the answer would be the third answer choice
7 0
4 years ago
Read 2 more answers
Simplify.<br> 7x + 3(x - 2) - 4x + 8<br> A) 6x + 2 <br> B) 6x + 14 <br> C) 6x - 2 <br> D) 14x + 2
vladimir2022 [97]
The answer is A! The simplified equation would be 6x-6+8 and then it simplifies to 6x+2!
4 0
3 years ago
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