All categories

3 years ago

Someone please help me!! I don’t know the answer!!

Mathematics

2 answers:

coldgirl [10]3 years ago

8 0

Answer:

Step-by-step explanation:

Remark

The measurement of the arc is 3Pi

that represents 108 / 360 of the circle.

Equation

108/350 2 * pi * R = 3* pi

Solution

Pi is on both sides of the equation. They both cancel.

108/360 = 0.3

0.3 * 2 * R = 3

0.6 * R = 3

R = 3/0.6

R = 5

Mademuasel [1]3 years ago

3 0

The answer would be R= 5

dididjdjdjdhjdjdh < so that i could answer

You might be interested in

Write and graph exponential functions to model the number of students at school A and at school B as a function of number of yea

Westkost [7]

Answer:

2^8 2x2x2x2x2x2x2x2=256

Step-by-step explanation:

8 0

3 years ago

What is the volume of a rectangular prism with a length of 2 inches, a width of an inch & is a quarter of an inch in height?

irina1246 [14]

Answer:

Step-by-step explanation:

Right rectangular prism

Solve for volume

V=whl

l Length

Width

Height

6 0

3 years ago

There are 13 salespeople at a car dealership. last year, they each sold the same number of cars. Together, they sold 1,157 cars.

klemol [59]

Answer:

Each salesperson sold 89 cars last year.

Step-by-step explanation:

13x = 1157 Set up an equation with an x-varible in place of the number of cars to be found

13x/13 = 1157/13 Divide 1157 by 13

x = 89

3 0

3 years ago

Find number a and k so that x-2 is afactor<br>OF F(x)=x4-2ax tax-<br>X+k and F(-1)=3

Slav-nsk [51]

Question:

Find numbers a and k so that x-2 is a factor of

$f(x)=x^4-2ax^3+ax^2- x+k$

and

$f(-1)=3$

Answer:

$k = -2$ and $a=1$

Step-by-step explanation:

Given

$f(x)=x^4-2ax^3+ax^2- x+k$

$Factor:\ x - 4$

$f(-1)=3$

Required

Find a and k

For $f(-1)=3$

Substitute -1 for x

$f(x)=x^4-2ax^3+ax^2- x+k$

$f(-1) = (-1)^4 - 2a *(-1)^3 + a*(-1)^2 - (-1) + k$

$f(-1) = 1 - 2a *-1 + a*1 +1 + k$

$f(-1) = 1 +2a + a +1 + k$

$f(-1) = 2 +3a + k$

Substitute 3 for f(-1)

$3 = 2 +3a + k$

Collect Like Terms

$3 - 2 = 3a + k$

$1 = 3a + k$

Also:

If $x - 2$ is a factor, then

$f(2) = 0$

Substitute 2 for x and 0 for f(x)

$f(x)=x^4-2ax^3+ax^2- x+k$

$0 = 2^4 - 2a * 2^3 + a * 2^2 - 2 + k$

$0 = 16 - 2a * 8 + a * 4 - 2 + k$

$0 = 16 - 16a + 4a - 2 + k$

$0 = 16 - 12a - 2 + k$

Collect Like Terms

$2 - 16 = - 12a + k$

$-14 = k - 12a$

$k = 12a - 14$

Substitute 12a - 14 for k in $1 = 3a + k$

$1 = 3a + 12a - 14$

$1 = 15a - 14$

Collect Like Terms

$15a = 1 + 14$

$15a = 15$

Solve for a

$a = \frac{15}{15}$

$a=1$

Substitute 1 for a in $k = 12a - 14$

$k = 12 * 1 - 14$

$k = 12 - 14$

$k = -2$

3 0

3 years ago

Given that (1,-8) is on the graph of f(x), find the corresponding point for the function 1/2f(x). PLEASE HELP ME. IM BEGGING YOU

scoray [572]

Answer:

The corresponding point is (1,-4)

Step-by-step explanation:

we know that

The point (1,-8) is on the graph of f(x)

that means

For $x=1, f(1)=-8$

therefore

For the function 1/2f(x)

For $x=1, 1/2f(1)=-8/2=-4$

The corresponding point is (1,-4)

3 0

3 years ago