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bagirrra123 [75]
4 years ago
7

If x=4 and y=5 work out 5xy+x squared

Mathematics
1 answer:
Verdich [7]4 years ago
5 0
5xy+x^2 \hbox{ for } x=4, \ y=5 \\ \\
5 \times 4 \times 5 + 4^2=100+16=\boxed{116}
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What expression is equivalent to 9(3x + 8)? *
Nat2105 [25]

Step-by-step explanation:

This is what it is equal to:

9×3x=27x

9×8=72

Therefore it will be:

27x + 72

hope it helps!

8 0
3 years ago
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A submarine's position is 600 feet below sea level. It descends 218 feet. What is the submarine's new elevation?
ollegr [7]

Answer with explanation:

If Submarine position is 600 feet below sea level, it can be represented in terms of integers as = - 600

Now , it descends 218 feet ,from where it is presently Located.

Descend in terms of integers can be represented as = - 218 feet

Submarine New position or Elevation = - 600 feet + (-218 feet)

                                            = -818 feet

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Round 188,206 to the nearest thousand
Vinvika [58]

Answer:

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Step-by-step explanation:

6 0
3 years ago
I need help plz I have a time test plz
Ksivusya [100]

Answer:

interest = $600

Step-by-step explanation:

for simple interest,

I = PTR/100

Principal (P) = $5000

Time (T) = 3 YEARS

Rate(R) = 4%

therefore, Interest (I) = $5000 × 3 × 4 / 100

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3 0
3 years ago
Alyssa is painting her bedroom blue. Each of four walls has dimensions 12.9 ft by 9.9 ft. How much area will she paint?
elixir [45]

Answer:

510.84 ft²

Step-by-step explanation:

Given that,

dimensions of wall = 12.9ft by 9.9ft

height of wall = 12.9ft

width of wall = 9.9ft

there are total 4 walls in a bedroom to be painted blue.

Formula to calculate area of one wall

<h3>Height x Width</h3>

Formula to calculate area of four walls

<h3>4 (Height x Width)</h3>

= 4( 12.9ft x 9.9ft)

= 4 (127.71 ft²)

= 510.84 ft²

So area Alyssa will paint = 510.84 ft²

<em>(assuming she will paint only wall s of her room not the ceiling)</em>

<em />

4 0
4 years ago
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