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Luba_88 [7]
3 years ago
11

Insert 2 sets of parentheses to make each sentence true: 2 x 14 – 9 – 17 – 14 = 7

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
3 0

Answer:

- 12

Step-by-step explanation:

2x14= 28

28-9=19

19-17=2

2- -14= - 12

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3 years ago
Let T:R²->R² be a linear transformation ,and assume that T (1,2)=(-1,1) and T(1,-1)=(2,3)
zavuch27 [327]

Answer:

(-4,-1)

Step-by-step explanation:

We are given T(1,2)=(-1,1) and T(1,-1)=(2,3) and T is a linear transformation.

This implies for scalars a and b that

T(a(1,2)+b(-1,1))=aT(1,2)+bT(-1,1)

T((a,2a)+(-b,b))=a(-1,1)+b(2,3)

T((a-b,2a+b))=(-a,a)+(2b,3b)

T((a-b,2a+b))=(-a+2b,a+3b)

This means we should be able to solve the system below to find a and b for T(3,3):

a-b=3 and 2a+b=3

Add equations to eliminate b and solve for a:

3a=6

Divide 3 on both sides:

a=2

If a-b=3 and a=2, then b=-1.

Plug in a=2, b=-1:

T((a-b,2a+b))=(-a+2b,a+3b)

T((2--1,2×2+-1)=(-2+2×-1,2+3×-1)

T(3,3)=(-4,-1).

4 0
2 years ago
While driving home from work Donald's windshield got cracked by a small rock, causing $500 worth of damage. Given the policy sum
Dafna11 [192]

I think you would most likely add all of them well I think

4 0
2 years ago
Read 2 more answers
Help please and thank you
Akimi4 [234]
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7 0
3 years ago
–42t + 80t + –59t − –97 = –29
Aleksandr [31]

Answer:

Hope this helps

Step-by-step explanation:

t=6

5 0
2 years ago
Read 2 more answers
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