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viva [34]
3 years ago
13

#3 please find f (5)

Mathematics
1 answer:
tekilochka [14]3 years ago
6 0

Answer:

Step-by-step explanation:

All we are doing here is simply plugging in a 5 for x in the function and finding out the value.

f(5)=\frac{-2}{-5(5)-19} and

f(5)=\frac{-2}{-25-19} and

f(5)=\frac{-2}{-44} so

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If n is "the number," which equation could be used to solve for the number?
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Infinite solutions ig without one or more actual number or variable there is no way to get one solid answer. (Im not positive ik im probably very wrong but this is just my guess by looking at it Im barely passing math as is)
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3 years ago
Find AB.<br> Round to the nearest tenth.<br> 61°
anzhelika [568]

Answer:

AB ≈ 14.3

Step-by-step explanation:

We're given <em>two sides </em>(BC and CA) and an <em>angle </em>(C)<em> between them</em>; the <em>law of cosines </em>is a good tool for calculating the third side of the triangle here. To remind you, the law of cosines tells us the relationship between the sides of a triangle with side lengths a, b, and c:

c^2=a^2+b^2-2ab\cos{C}

Where C is the angle between sides a and b. c is typically the side we're trying to find, so on our triangle, we have

c=AB\\a=BC=16\\b=CA=5\\C=m\angle C=61^{\circ}

Substituting these values into the law of cosines:

c^2=16^2+5^2-2(16)(5)\cos{61^{\circ}}\\c^2=256+25-160\cos{61^{\circ}}\\c^2=281-160\cos{61^{\circ}}\\c=\sqrt{281-160\cos{61^{\circ}}}\\c\approx 14.3

6 0
3 years ago
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Answer fasttt plsssssss
Vlad [161]

Answer:

25ax25b= 625

5 0
3 years ago
Help me pls, BRAINEST AWARD
Natali [406]

Answer:

x = 3.7

Step-by-step explanation:

By applying sine ratio for the given angle B,

sin(39°) = \frac{\text{Opposite side}}{\text{Hypotenuse}}

sin(39°) = \frac{AD}{AB}

0.6293 = \frac{AD}{7}

AD = 4.41

By applying tangent ratio for the given angle C,

tan(50°) = \frac{\text{Opposite side}}{\text{Adjacent side}}

1.19 = \frac{AD}{x}

1.19 = \frac{4.41}{x}

x = 3.7

4 0
3 years ago
1/2% of 412<br> with work
Trava [24]

Answer:

1.5% x 412 = 618?

Step-by-step explanation:

8 0
3 years ago
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