Explain how an estimate helps you place the decimal point when multiplying 3.9 × 5.3

1 answer:

4 0

An estimate helps you place the decimal point when multiplying because if you find out how many decimals there are and once you are done doing you estimated multiplication you put two decimal points after that.

Hope I helped some what and didn't make you confused.

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Hermie cuts out 60% of the shapes from his paper. He cut out 12. Enter the number of shapes on Hermie's paper.

pentagon [3]

Answer:

Step-by-step explanation:

12 = 60% of x = 0.6x

x= 12/0.6= 20

Paper had 20 shapes. He cut out 12 shapes; 8 shapes remain

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3 years ago

Evaluate x^2 − 4x + 5, when x = − 3

Gnom [1K]

Answer:

$\huge\boxed{26}$

Step-by-step explanation:

$\sf x^2-4x+5\\Given \ that \ x = -3\\(-3)^2-4(-3)+5\\9+12+5\\26$

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Write the equation of the line that passes through the point (-2, 7) and is PARALLEL to the line y = -4x + 1.

qwelly [4]

Answer:

The equation is $y=x-9$

Step-by-step explanation:

If we want a line parallel to the line in the problem it will have the same slope. The equation given in the problem is already in slope intercept form so we can take the slope for the new equation directly from this equation.

The slope-intercept form of a linear equation is: $y=mx+b$