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UNO [17]
3 years ago
13

2(m+1) -n3 ; m = -2, n = 3

Mathematics
1 answer:
shutvik [7]3 years ago
4 0
-11 that is the answer 
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Lena [83]

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3 years ago
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Númer 9 and 10 please help
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9. -1,07, 1/2. 3........it is all I could see

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8 0
3 years ago
Find the difference when the polynomial -5x^2+3x+8 is subtracted from the polynomial 2x^2+4x+1.
geniusboy [140]

The difference is 7x^{2}  + 1x-7.

Step-by-step explanation:

Step 1:

The polynomial -5x^{2}+3x+8 is subtracted from the polynomial 2x^{2} + 4x +1.

If we write this as an equation, we get

(2x^{2} + 4x +1) -(-5x^{2}+3x+8).

To subtract the polynomials, we group up the terms based on their variables.

In this subtraction, there are two variables i.e. x^{2} and x and there is one constant term.

Step 2:

The subtraction of the x^{2} variables; 2x^{2}  -(-5x^{2} )  = 2x^{2} +5x^{2} = 7x^{2}.

The subtraction of the x variables; 4x - (3x) = 1x.

The subtraction of the constants; 1-(8) = -7.

So (2x^{2} + 4x +1) -(-5x^{2}+3x+8) = 7x^{2}  + 1x-7.

4 0
3 years ago
What is the minimum volume of hot air needed to lift a hot air balloon carrying 800kg
nevsk [136]

Answer:

The minimum volume of hot air needed to lift a hot air balloon carrying 800kg

Is 653.1m³

Step-by-step explanation:

This problem bothers on the density of materials in this problem air

Given data

Volume of air V=?

Mass of air m= 800kg

From tables the density of air is

ρ =1.225 kg/m3

Now to solve for the volume we have

ρ=m/v

v=m/ρ

v=800/1.225

Volume v = 653.1m³

3 0
3 years ago
one fish is 4 feet below sea level. Another fish is 3 feet below sea level. write each position as an integer. which integer is
Eva8 [605]
Fish #1 is -4 feet 
Fish #2 is -3 feet

Fish #2 is higher than Fish #1
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3 years ago
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