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Free_Kalibri [48]
3 years ago
10

The coefficient of xy in the product of (4x^2y+)and(3x+y^2) is

Mathematics
1 answer:
Ket [755]3 years ago
5 0
Uuuuuuuuuuuuuuuummmmmmmmmmmmmmmmmmmmmmmmmmmm
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Johann wants to find a rectangular solar panel with an area of 128 cm. If the
Papessa [141]

Answer:

The length of rectangular panel is 6.4 cm.

Step-by-step explanation:

We are given the following information in the question:

Area of rectangular solar panel = 128 square cm

Width of panel = 20 cm

We have to find the length of the panel

Formula:

\text{Area of rectangular panel} = \text{Width}\times \text{Length}\\\Rightarrow 128 = 20\times \text{Length}\\\\\text{Length} = \displaystyle\frac{128}{20} = 6.4\text{ cm}

Hence, the length of rectangular panel is 6.4 cm.

This is an example of direct variation as greater would be length and breadth, the greater would be the area.

8 0
3 years ago
Solve the equation for x: 2x + 22 = 4(x+3)
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2x + 22 = 4(x + 3)...distribute thru the parenthesis
2x + 22 = 4x + 12...subtract 2x from both sides, subtract 12 from both sides
22 - 12 = 4x - 2x...simplify
10 = 2x...divide both sides by 2
10/2 = x...reduce
5 = x <==
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3 years ago
E is 5 more than d.<br> fis 7 less than d.<br> a) Write an expression for e in terms of d.
yaroslaw [1]

Answer:

C

Step-by-step explanation:

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3 years ago
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When dividing two terms with the same base, subtract the exponent in the denominator from the exponent in the numerator: Power of a Power: To raise a power to a power, multiply theexponents. 
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Let a =107°   and b=42°;

So cos 107° cos 42° + sin 107° sin 42°  = cosa.cos42 + sina.sinb = cos(a-b)

and cos 107° cos 42° + sin 107° sin 42°  = cos(107-42) = cos(65°)
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3 years ago
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