Translate the expression 5x - 7.

1 answer:

7 0

Answer: the difference of five times a number and 7

There are two operations in the expression 5x - 7, a multiplication (of x by 5) and a subtraction (7 from 5x).

The PEMDAS order of operations says the multiplication is done before subtraction.

The first answer choice would look like 5(x - 7).
The third answer choice would look like (x - 7) + 5.

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Determine the GCF of<br>the following:<br>60 and 144

Alla [95]

12, Find the prime factorization of 60

60 = 2 × 2 × 3 × 5

Find the prime factorization of 144

144 = 2 × 2 × 2 × 2 × 3 × 3

To find the gcf, multiply all the prime factors common to both numbers:

Therefore, GCF = 2 × 2 × 3

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4 years ago

For how many weeks would the class need to have car washes to earn $5000.

nikdorinn [45]

The correct answer would be for 29 weeks.
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Hope that helps. :)

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4 years ago

Find in degrees the numeric value of the acute angle of rotation that eliminates the product term from the equation 7x2+24xy−34x

lutik1710 [3]

Rotating the graph of $Ax^2+Bxy+Cy^2+Dx+Ey+F=0$ with $B\ne0$ counterclockwise by $\theta$ eliminates the $xy$ term, where $\cot2\theta=\frac{A-C}{B}.$ Plugging in, we have $\cot2\theta=\frac{7}{24},$ since $C=0.$ Solving, we have $\theta=\frac{1}{2}\cot^{-1}(\frac{7}{24})\approx\boxed{36.9^\circ}.$