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storchak [24]
3 years ago
8

What is A + B? A = [ 3.42 1] B = [5 6 89]

Mathematics
2 answers:
Free_Kalibri [48]3 years ago
7 0

Answer:

5692.421

Step-by-step explanation:

3.421 + 5689 = 5692.421

Vitek1552 [10]3 years ago
5 0

Answer:

a+b=c

Step-by-step explanation:

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I need help ASAP please
Verdich [7]

Answer:

33

Step-by-step explanation:

first you set up the problem, supplementary angles equal 180 degrees so the equation should look like, 4x+x+15=180. then you solve from there by combining like terms and you should get x equal to 33

4 0
3 years ago
How much more interest will Maria receive if she invests $1,000 for one year at x percent annual interest, compounded semiannual
notka56 [123]

Answer:

  $0.025x² . . . where x is a number of percentage points

Step-by-step explanation:

The multiplier for semi-annual compounding will be ...

  (1 + x/2)² = 1 + x + x²/4

The multiplier for annual compounding will be ...

  1 + x

The multiplier for semiannual compounding is greater by ...

  (1 + x + x²/4) - (1 + x) = x²/4

Maria's interest will be greater by $1000×(x²/4) = $250x², where x is a decimal fraction.

If x is a percent value, as in x = 6 when x percent = 6%, then the difference amount is ...

  $250·(x/100)² = $0.025x² . . . where x is a number of percentage points

_____

<u>Example</u>:

For x percent = 6%, the difference in interest earned on $1000 for one year is $0.025×6² = $0.90.

3 0
3 years ago
What is the discounted price of a $500 cell phone with a discount of<br> 10% ?
iren2701 [21]
My answer that I got was $500.00
5 0
3 years ago
A negative number plus a positive number is a negative number.
ipn [44]

Answer:

Sometimes

Step-by-step explanation:

Examples:

-5 + 10 = 5   FALSE

-10 + 5 = -5  TRUE

7 0
3 years ago
Read 2 more answers
Provide an expression that is equivalent to -3(8+2) ?
aliina [53]

Answer:

-3(8+2)=-30

Step-by-step explanation:

-3(8+2)

(8+2)=10

-3×10=-30

5 0
3 years ago
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