3 years ago

12a-3b2. When a=9 b=4

Mathematics

1 answer:

const2013 [10]3 years ago

6 0

You’re basically doing 12×9-3×4×2 and then you get 84!

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If segment DF is an angle bisector, solve for x

klasskru [66]

Answer:

x = 19

Step-by-step explanation:

Since DF is an angle bisector then it divides the opposite sides into segments that are proportional to the other 2 sides, that is

$\frac{DE}{DG}$ = $\frac{EF}{GF}$ , substitute values

$\frac{25}{22.5}$ = $\frac{x-9}{9}$ ( cross- multiply )

22.5(x - 9) = 225 ( divide both sides by 22.5 )

x - 9 = 10 ( add 9 to both sides )

x = 19

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3 years ago

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Answer:

Step-by-step explanation:

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3 years ago

Together, teammates Pedro and Ricky got 2673 base hits last season. Pedro had 277 more hits than Ricky. How many hits did each

ioda

Answer:

Pedro got 1520 base hits and Ricky got 1243.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to say that:

x is the number of base hits that Pedro got.

y is the number of base hits that Ricky got.

Pedro and Ricky got 2673 base hits last season.

This means that $x + y = 2763$

Pedro had 277 more hits than Ricky.

This means that $x = y + 277$

Replacing in the first equation

$x + y = 2763$

$y + 277 + y = 2763$

$2y = 2486$

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$x = y + 277 = 1243 + 277 = 1520$

Pedro got 1520 base hits and Ricky got 1243.

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3 years ago

Identify a pattern and find the next number in the pattern. 57, 52, 47, 42

sweet-ann [11.9K]

The pattern is subtracting each number by 5

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3 years ago

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For how many values of x: (4.9 cm < x < infinity) is it true that ex = 0?

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E^x is not zero for any finite value of x.

The number of values for which e^x is zero is zero.

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3 years ago