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Bad White [126]

3 years ago

13

Rodney is helping to make hamburgers for the football game. He's made 10 hamburgers so far. His coach asked him to make at least

30 hamburgers but no more than 80. Solve the inequality and interpret the solution.

1 answer:

anastassius [24]3 years ago

3 0

Answer:

40 I had this question before

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Solve the simultaneous equation y-2x+1=0 and 4x^2+3y^2-2xy=7

Lapatulllka [165]

The first equation is $y-2x+1=0$

$y=2x-1$ (Equation 1)

The second equation is $4x^{2}+3y^{2}-2xy=7$ (Equation 2)

Putting the value of x from equation 1 in equation 2.

we get,

$4x^{2}+3(2x-1)^{2}-2x(2x-1)=7$

$4x^{2}+3(4x^{2}+1-4x)-4x^{2}+2x=7$

by simplifying the given equation,

$12x^{2}-10x-4=0$

$6x^{2}-5x-2=0$

Using discriminant formula,

$D=b^{2}-4ac$

$D=25-4 \times 6 \times -2 = 73$

Now the formula for solution 'x' of quadratic equation is given by:

$x=\frac{-b+\sqrt{D}}{2a} and x=\frac{-b-\sqrt{D}}{2a}$

$x=\frac{5+\sqrt{73}}{12} and x=\frac{5-\sqrt{73}}{12}$

Hence, these are the required solutions.

8 0

3 years ago

Complete the pattern 274÷1=

Orlov [11]

The answer 274 because anything divided by one is itself

5 0

3 years ago

Two sides of an obtuse triangle measure 9 inches and 14 inches. The length of longest side is unknown. What is the smallest poss

Fofino [41]

Answer:

126.

Step-by-step explanation:

also, Rounded to 17.

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3 years ago

Find the exact arc length of the given arc. show all work and leave terms of pi and reduce your fraction.

Sauron [17]

Answer:

20/3pi

Step-by-step explanation:

$\frac{75}{360} \times 2\pi \times 16 \\ = \frac{2400}{360} \pi\\ = \frac{20}{3} \pi\\ = 20.94 \: cm$

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Alan removed fish from his pond each day for days. What was the total change in the number of fish in the pond?

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Answer:

Step-by-step explanation:

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