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3 years ago

Solve 4x + 3 + 3(2x—5)

Mathematics

2 answers:

shutvik [7]3 years ago

7 0

Combine like terms (4x+6)(2x-5)
foil 8x^2-20x+8x+1
set equal to zero and use quadratic formula
x=23/16 and x=1/16

svlad2 [7]3 years ago

6 0

I believe it would be 10x - 12

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Step-by-step explanation:

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Suppose that the functions r and s are defined for all real numbers x as follows. =rx−x5 =sx+2x3 write the expressions for ·rsx

PolarNik [594]

Although the question's print is not clear, to the best of my knowledge, as I can see, We are given that:

$r(x)=-x^5$ and $s(x)=2x^3$

No, we know that, by definition:

$(r.s)(x)=r(x)\times s(x)$

$\therefore (r.s)(x)=-x^5\times 2x^3=-2x^8$

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8 0

3 years ago

Pls help me solve this

sammy [17]

Answer:

4 kg of sugar would contain $1.2 \times 10^9$ crystals.

Step-by-step explanation:

Given that 3kg of sugar contains 9 × 10⁸ crystals, let "x" represent the number of sugar crystals 4kg of sugar would contain.

Thus, set up a proportion as follows:

3 kg : 9 × 10⁸ = 4 kg : x

$\frac{3}{9 \times 10^8} = \frac{4}{x}$

Solve for x. Cross multiply.

$3 \times x = 9 \times 10^8 \times 4$

$3x = 36 \times 10^8$

$3x = 3.6 \times 10^9$

Divide both sides by 3

$\frac{3x}{3} = \frac{3.6 \times 10^9}{3}$

$x = 1.2 \times 10^9$

4 kg of sugar would contain $1.2 \times 10^9$ crystals.

5 0

3 years ago

8) Solve the equation for m<br> 7m-(5m-12) =8+2m+4

storchak [24]

Answer:

no solution

Step-by-step explanation:

7m-(5m-12)= 8+2m+4

2m+12= 2m+4

no solution

6 0

3 years ago