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NARA [144]
3 years ago
14

Find f(-2) for f(x) = 5•3*x

Mathematics
2 answers:
Oksanka [162]3 years ago
8 0

Answer:

The value of f(-2) is 0.56

Step-by-step explanation:

Given the function

f(x)=5.3^x

we have to find the value of f(-2)

f(x)=5.3^x

Put x=-2

f(-2)=5.3^{-2}

f(-2)=5\times \frac{1}{3^2}

f(-2)=\frac{5}{9}=0.5555...\sim 0.56

Hence, the value of f(-2) is 0.56

nirvana33 [79]3 years ago
4 0
Hello!

You put -2 in for x

I don't know whether it is times x or to the power of x so I will do both

5 * 3 * x

5 * 3 * -2 = -30
------------------------------------------------------------------------------------------------------
5 * 3^x

5 * 3^-2

5 * 1/81 = 5/9 or 0.55555

Hope this helps!
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Calculate the volume of the following object:
frozen [14]

Answer:

262.44 cubic metres.

Step-by-step explanation:

First, we can calculate the volume of the cylinder by doing pi * r^2 * h. In this case, r is 5 / 2 and h is 7.

pi * (5/2)^2 * 7 = pi * 25/4 * 7 = pi * 6.25 * 7 = pi * 43.75 = 3.14159265 * 43.75 = 137.4446784 cubic m.

Seconds, we calculate the volume of the cube. It is 5^3 = 5 * 5 * 5 = 25 * 5 = 125 cubic m.

137.4446784 + 125 = 262.4446784, which is about 262.44 cubic metres.

Hope this helps!

3 0
3 years ago
Read 2 more answers
Plsss Help!! Will mark brainiest!! Due soon!!
Gnom [1K]

m <3 = 52 °

Explicación paso a paso:

Puntos para recordar

1). El rombo es un paralelogramo. Los ángulos opuestos son suplementarios.

2). Las diagonales bisecan los ángulos de cada esquina.

3). Los ángulos alternos internos son iguales.

4). Todos los lados son iguales

Para encontrar la medida de <3

De la figura podemos ver un paralelogramo.

Se da que, n <3 = 80

Sabemos que m <1 = m <3

Por propiedad de suma de ángulos,

m <1 + m <1 + m <3 = 180

3 * m <1 = 180 - 80 = 100

<m1 = 100/2 = 50

Por lo tanto m <3

6 0
3 years ago
Read 2 more answers
-18 = -3 + x THANK YOU SOOOOOO MCHOOOO
anzhelika [568]

Answer:

\huge\boxed{x=-15}

Step-by-step explanation:

-18=-3+x\qquad|\text{add 3 to both sides}\\\\-18+3=-3+3+x\\\\-15=x\to x=-15

5 0
3 years ago
Circle W has a radius of 20 in and right central angle, ZVWX. Find the length of vx. Leave your answer in terms of pi.
xenn [34]

Answer:

The length of the arc is 10 pi

Step-by-step explanation:

Mathematically, the length of an arc is calculated as;

theta/360 * 2 * pi * r

theta represents the central angle subtended by the arc which is a right angle according to the question (a right angle is 90 degrees)

r is the circle radius which is 20 inches

so we have the length of the arc as;

90/360 * 2 * pi * 20 = 40 pi/4 = 10 pi

3 0
3 years ago
Solve for k.<br> 12/k = 3
hram777 [196]

Answer:

k=3/12

k=.25

Step-by-step explanation:

we need to get k by itself

because 12 is over k we need to get rid of it by moving it to the other side (multiplying) because it is 12/k we need to multiply it by 1/12

This eliminates 12 and leaves us with k=3/12

5 0
4 years ago
Read 2 more answers
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