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Komok [63]
3 years ago
9

The sum of matrices A and B is C.

Mathematics
1 answer:
GuDViN [60]3 years ago
4 0

Answer:

Step-by-step explanation: -3

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in a change jar, tom has nickels and dimes. the number of nickels is two times the number of dimes and the total amount of money
AleksAgata [21]
N=number of nickles
d=number of dimes

n is 2 times d
n=2d
total money is 1.20
convert to cens
120 cetns

5n+10d=120
n=2d
5(2d)+10d=120
10d+10d=120
20d=120
divide both sides by 120
d=6
6 dimes is answer

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8 0
3 years ago
Please help with this question!! Will mark brainliest!! Thank you:)​
madam [21]

Answer:

I’m not good at algebra but I think that qx = -4 and qy = -7? I tried I’m not good at algebra.

Step-by-step explanation:

qy= -7 plus px= 3 equals -4

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7 0
2 years ago
The base of a triangle is 4 cm greater than the
Anna35 [415]

Answer:

Step-by-step explanation:

Formula for area of a triangle:

Height x Base /2

Base (b) = h +4

Height = h

h + 4 x h /2 = 30cm

=> h +4 x h = 60

=> h+4h =60

=> 5h = 60

=> h = 12

Height = 12

Base = 12 +4 = 16

4 0
2 years ago
Whats 3 square root 64
Makovka662 [10]
The answer to your question is 24
5 0
3 years ago
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F(x) = 5x^2 - 8x - 5 what is the value of f(10) ?
Dominik [7]
<span>f '(x) = 2(3x2<span> + 5) + 6x(2x - 1)</span></span><span>= 6x2<span> + 10 + 12x</span>2<span> - 6x</span></span><span>= 18x2<span> - 6x + 10</span></span>
8 0
3 years ago
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