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o-na [289]
3 years ago
10

If f(x) = (x^2-1)/(2x+3) then f(-4) =

Mathematics
1 answer:
borishaifa [10]3 years ago
8 0

Answer:

b

Step-by-step explanation:

-4 squared = -16 -1 = -17

2(-4)= -8+3=11

thus giving you -(17/5)

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an air conditioner can cool a room that has a volume of up to 3,600 cubic feet. a room shaped like a rectangular prism is 15 fee
valentinak56 [21]

The length of the air conditioner is 24 feet.

Volume = 3600 feet ³

Width = 15 feet

Height = 10 feet

Length = Unknown

Therefore, the value of the length will be calculated thus:

Volume = Length × Width × Height

3600 = Length × 15 × 10

Length = 3600 / (15 × 10)

Length = 3600 / 150

Length = 24

The length is 24 feet

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5 0
2 years ago
How do you do trigonometric Ratios<br>​
iren2701 [21]
To calculate the sine of an angle, simply divide the length of the opposite side, 479.16, by the length of the hypotenuse, 610. To get the cosine, divide the length of the adjacent side, 377.5, by the length of the hypotenuse, 610.
4 0
3 years ago
6x+9/x-5 x is not equal to 5 find inverse
algol [13]
You have f(x)=(<span>6x+9)/(x-5) and want to find the inverse function?  Please note that the parentheses are obligatory here.

1.  Replace "f(x)" with y:   y = </span>(6x+9)/(x-5)
<span>
2.  Interchange the variables x and y:     x</span> = (6y+9)/(y-5)

3.  Solve this result for y:     x(y-5) = (6y+9), or xy-5x = 6y+9.  Then:
                                                             
                                            xy-6y = 9 + 5x, or y(x-6) = 9+5x
                                                             9+5x
                     Then                      y = --------------                       
                                                             x-6

Here x may not = 6, because division by zero would occur otherwise.
3 0
3 years ago
What is the area of the triangle shown above
Nikolay [14]

Answer:

I don't see the triangle...

5 0
3 years ago
A family uses 12,986. 64 Swiss francs per year to pay a mortgage that requires US dollars. Approximately how much, in US dollars
lukranit [14]

Unit conversion is a way of converting some common units into another without changing their real value. The amount that is paid by the family in mortgage per month is equal to $1200.

<h3>What is Units conversion?</h3>

Unit conversion is a way of converting some common units into another without changing their real value. for, example, 1 centimetre is equal to 10 mm, though the real measurement is still the same the units and numerical values have been changed.

As it is given to us that the family uses 12,986.64 Swiss francs per year to pay a mortgage. Therefore, the amount that is paid by the family in mortgage per month can be written as,

\text{Mortgage for a month} = \dfrac{\text{Mortgage of the family for a complete year}}{\text{Number of Months}}\\\\\\\text{Mortgage for a month} = \dfrac{\rm 12,986.64\ Swiss\ francs}{12} = 1082.22\rm \ Swiss\ francs

Thus, the family needs to pay 1082.22 swiss francs every month in the mortgage.

Now, it is mentioned in the problem that 1 Swiss franc = 1.11 US dollars, therefore, 1082.22 swiss francs when converted to US dollars will be equal to,

\rm 1\ Swiss\ francs = \$1.11 \\\\1082.22\ Swiss\ francs = 1082.22 \times 1.11 = \$1,201.26 \approx \$1,200

Hence, the amount that is paid by the family in mortgage per month is equal to $1200.

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8 0
3 years ago
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