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Kay [80]
3 years ago
9

Help me out plzzz???!

Mathematics
1 answer:
nlexa [21]3 years ago
4 0

Answer:

1/4x^2 - 1/4x - 1/4

Step-by-step explanation:

I multiplied the two binomials at the top to get 6x^2 + x -2 and I divided it by 24x^2 - 4x - 8 and simplified it to get 1/4x^2 - 1/4x - 1/4

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How would you use estimation to evaluate this expression 10.2 x [(2x3.7)+8]
Goryan [66]
Round off the decimals to a sensible number. So 3.7 would be 4 and 10.2 would be 10. In this case, it would be (2 × 4 + 8) × 10 which is 160.
6 0
3 years ago
Which function is the inverse of f(x) = (x − 3)^3 + 2?
morpeh [17]

Answer:

A

Step-by-step explanation:

refer to the pic above

7 0
3 years ago
Read 2 more answers
Using addition formula solve tan 15​
salantis [7]

Answer:

2 - \sqrt{3}

Step-by-step explanation:

Using the addition formula for tangent

tan(A - B) = \frac{tanA-tanB}{1+tanAtanB} and the exact values

tan45° = 1 , tan60° = \sqrt{3} , then

tan15° = tan(60 - 45)°

tan(60 - 45)°

= \frac{tan60-tan45}{1+tan60tan45}

= \frac{\sqrt{3}-1 }{1+\sqrt{3} }

Rationalise the denominator by multiplying numerator/ denominator by the conjugate of the denominator.

The conjugate of 1 + \sqrt{3} is 1 - \sqrt{3}

= \frac{(\sqrt{3}-1)(1-\sqrt{3})  }{(1+\sqrt{3})(1-\sqrt{3})  } ← expand numerator/denominator using FOIL

= \frac{\sqrt{3}-3-1+\sqrt{3}  }{1-3}

= \frac{-4+2\sqrt{3} }{-2}

= \frac{-4}{-2} + \frac{2\sqrt{3} }{-2}

= 2 - \sqrt{3}

3 0
3 years ago
The area of a rectangle is 228 sq feet if the length of rectangle is 12 feet what would be the width of the rectangle
zysi [14]
Well you do 228/12 to find your answer and that is 19 and to check you do 12*19=228
8 0
3 years ago
What is the equation of a line that passes through the points (–3, 4) and (2, 8)?
sveta [45]

Answer:

=5

Step-by-step explanation:

4-9= -5

2-3 = -1

=5

.....

3 0
3 years ago
Read 2 more answers
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