MATHEMATICS HIGH SCHOOL

Round the number to the thousandths place.64,672.318498
a. 64,672.318
b. 65,000
c. 64,672.32
d. 64,672.319

Answers

Answer 1
Answer: Thousandths is to three decimal places to the right. 

Because 4 (the fourth digit) is less than 5, the 8 is left as it is. 
Therefore, the answer is 64672.318 

The answer is a. 

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For each group of three forces below, determine whether the forces in each pair are pulling at right angles to each other.A. 12 lb, 13 lb, resultant force 19 lb, yes; 15 lb, 36 lb, resultant force 39 lb, yes

B. 12 lb, 13 lb, resultant force 19 lb, no; 15 lb, 36 lb, resultant force 39 lb, yes

C. 12 lb, 13 lb, resultant force 19 lb, yes; 15 lb, 36 lb, resultant force 39 lb, no

D. 12 lb, 13 lb, resultant force 19 lb, no; 15 lb, 36 lb, resultant force 39 lb, no

Answers

To condition in which we can justify if the forces are pulling at right angles to each other is that the sum of the squares of the two lesser number should be equal to the square of the third number. 

For the first set: 12 lb, 13lb, 19lb. 

                                             12^2 + 13^2 ≠ 19^2

For the second set: 15 lb, 36 lb, 39 lb

                                             15^2 + 36^2 = 39^2

The first pair of forces do not pull at a right angle while the second do.
Thus, the answer is letter B. 

Find the value of 5 (3)

Answers

Answer:

15

Step-by-step explanation:

You take 5 times 3.

Rewrite the decimal fraction as a decimal number.

8 25/1,000

Answers

25/1000 as a decimal is 0.025

Your answer would be 8.025

Answer:

8.025

Step-by-step explanation:

8 is in the ones place and it says 25 one thousands so, 25 one thousandths.

Hope it helped!

If f(x) = 2x + 3 and g(x) = x2 + 1,find f(g(3)).

Answers

Answer:

The value of f(g(3)) is 23.

Step-by-step explanation:

The given functions are

f(x)=2x+3

g(x)=x^2+1

We have to find the value of f(g(3)).

Substitute x=3 in the function g(x) to find the value of g(3).

g(3)=3^2+1=9+1=10

f(g(3))=f(10)                       [g(3)=10]

Substitute x=10 in the function f(x) to find the value of f(10).

f(10)=2(10)+3=20+3=23

Therefore the value of f(g(3)) is 23.
Hello,

f(g(3))=f(3²+1)=f(10)=2*10+3=23
===========================

Which function below represents the arithmetic sequence 3, 7, 11, 15...? a) f(n) = 4 + 3(n - 1)

b) f(n) = 4 + 3n

c) f(n) = 3 + 4n

d) f(n) = 3 + 4(n - 1)

Answers

d) f(n) = 3 + 4(n-1)

3 = 1st term
4 = common difference among the terms
n = term number you are looking for.

To check: 3, 7, 11, 15, ...

f(1) = 3 + 4(1-1) = 3 + 4(0) = 3 + 0 = 3
f(2) = 3 + 4(2-1) = 3 + 4(1) = 3 + 4 = 7
f(3) = 3 + 4(3-1) = 3 + 4(2) = 3 + 8 = 11
f(4) = 3 + 4(4-1) = 3 + 4(3) = 3 + 12 = 15

Answer:

its d

Step-by-step explanation:

What is the value of y so that the ordered pair (5, y) is a solution to the equation –5x + y = –40?

Answers

(5, y).  Implies that x = 5

-5x + y = -40

-5*5 + y = -40

-25 + y = -40

y = -40 + 25

y = 25 - 40

y = -15.

Value of y = -15.
I'm a little confused with the question but if u want to find the value for y so u can get -40 is going to be -35
-5x+y=-40
-5(1)+y(-35)=-40
-5-35=-40
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