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2 years ago

If f(x) = 130x - 2], find f(3)

Mathematics

2 answers:

Brilliant_brown [7]2 years ago

6 0

Answer:

Step-by-step explanation:

only due .I am not very sure

Fofino [41]2 years ago

5 0

Answer:

f(3)= 130(3) -2

f(3)= 390-2

f(3)= 388

Step-by-step explanation:

in my own understanding

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U(x)=x-1<br> W(x)=2x^2-2<br><br> (U.w)(1)=<br> (W•u)(1)=

Kryger [21]

Answer: I really don’t know lol

Step-by-step explanation:

8 0

3 years ago

1.63 repeatind decimal as a mixed number

emmainna [20.7K]

First change the decimal portion into a fraction.
63/100. That is the simplest form of the fraction. add in your whole number. The answer is 1 63/100

3 0

3 years ago

Can someone please help!

vekshin1

Answer:

Step-by-step explanation:

Area of a Triangle = Base * Height * 1/2

Base = 5

Height = 4.33

Area of a Triangle = 5 * 4.33 * 1/2

Area of a Triangle = 10.825

There are four triangles.

Surface Area = Area of a Triangle * Number of Triangles

Surface Area = 10.825 * 4

Surface Area = 43.3cm²

7 0

3 years ago

The translation of ABCD to A'B'C'D'<br> is given by (×+[?].y-[ ]).

s2008m [1.1K]

Answer:

(x + 1 , y - 3)

Step-by-step explanation:

Compare x-coordinate of A(-6,1) and A'(-5,-2)

-6 + a = -5

a = -5 +6 = 1

x- coordinate of A' = x coordinate of A + 1

Compare y-coordinate of A(-6,1) and A'(-5,-2)

1 + a =-2

a = -2 - 1 = -3

y- coordinate of A' = y coordinate of A - 3

A(-6 , 1) = A'(-6+1 , 1-3) = A'(-5, -2)

D(( -1 , 1) = D'(-1+1, 1 - 3) = D'(0,-2)

C(-2,3) =C'(-2+1, 3-3) = C'(-1,0)

B(-4,3)= B'(-4+1 , 3-3) = B'(-3,0)

7 0

3 years ago

A random sample of 56 lithium batteries has a mean life of 645 hours with a population standard deviation of 31 hours. Compute t

bearhunter [10]

Answer: A. (636.9, 653.1)

Step-by-step explanation:

Given : Sample size : n=56

Significance level : $\alpha: 1-0.95=0.05$

Critical value : $z_{0.05}=1.96$

Sample mean : $\overline{x}=645\text{ hours}$

Standard deviation : $\sigma= 31\text{ hours}$

The 95% confidence interval for population mean is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=645\pm (1.96)\dfrac{31}{\sqrt{56}}\\\\=645\pm8.1\\\\=(636.9, 653.1)$

Hence, 95% confidence interval for population mean is (636.9, 653.1).

8 0

3 years ago