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saw5 [17]
3 years ago
8

Pls help! I’m giving 17 points!

Mathematics
2 answers:
yaroslaw [1]3 years ago
7 0
For what? There’s nothing there lol
Shtirlitz [24]3 years ago
4 0

Answer:

4a) 3b+14; f=-5

3(-5)+14

-15+14

=-1

4b) 3b+14; f=-3

3(-3)+14

-9+14

=5

4c) 3b+14; f=0

3(0)+14

0+14

=14

4d) 3b+14; f=4

3(4)+14

12+14

=26

5a) 6.75-6v; v=1

6.75-6(1)

6.75-6

=0.75

5b) 6.75-6v; v=2

6.75-6(2)

6.75-12

=-5.25

5c) 6.75-6v; v=5

6.75-6(5)

6.75-30

=-23.25

5d) 6.75-6v; v=-3.25

6.75-6(-3.25)

6.75+19.5

=26.25

6a) f/4 +3f; f=4

4/4 +3(4)

1+12

=13

6b) f/4+3f; f=8

8/4+3(8)

2+24

=26

6c) f/4+3f; f=-12

-12/4+3(-12)

-3-36

=-39

6d) f/4+3f; f=-1

-1/4+3(-1)

=-1/4+-3

Step-by-step explanation:

Plug in the value into the equations and solve.

hope this helps :)

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What is 30=8+4(z-2) step by step?
Stolb23 [73]

30=8+4(z-2)

Distribute 4 through the parentheses

30=8+4z-8

Eliminate the opposites

30=4z

Swap the sides of the equation

4z=30

Divide both sides of the equation by 4

4z÷4=30÷4

Any expression divided by itself equals 1

z=30÷4

or write the division as a fraction

z=30/4

copy the numerator and denominator of the fraction

30=2x3x5

4=2x2

Write the prime factorization of 30

Write the prime factorization of 4

30=2          x3x5

4=2x2

    2

Line up the common factors in both lists

Copy the common factors

Since there is only one common factor, the common factor 2 is also the greatest common factor

30÷2/4÷2

  2

Divide 30 and 4 by the greatest common factor 2

15/4÷2

Divide the numbers in the numerator

15/2

Divide the numbers in the denominator

15/2

The simplified expression is 15/2

That's it. hope it wasn't too hard to understand?

7 0
3 years ago
If a > b and b > C, what is true about the
Stella [2.4K]

Answer:

  a > c

Step-by-step explanation:

The Transitive Property of Inequality can be written as ...

  If a > b and b > c, then a > c.

Based on the above, we can conclude from your premises that a > c.

5 0
2 years ago
The masses mi are located at the points Pi. Find the moments Mx and My and the center of mass of the system. m1 = 4, m2 = 3, m3
viva [34]

Answer:

M_x= 8

M_y = 6

Therefore the co-ordinate of the center of mass is = (\frac{4}{5},\frac{3}{5})

Step-by-step explanation:

Center of mass: Center of mass of an object is a point on the object. Center of mass is the average position of the system.

Center of mass of a triangle is the centriod of a triangle.

Given that m₁= 4, m₂=3, m₃=3 and the points are P₁(2,-3), P₂(-3,1) and P₃(3,5)

M_x = ∑(mass × x-co-ordinate)

M_y = ∑(mass × y-co-ordinate)

Therefore  

M_x = (4×2)+{3×(-3)}+(3×3)

     =8

M_y = {4×(-3)}+{3×1}+(3×5)

    =6

The x co-ordinate of the center of mass is the ratio of M_x to the total mass.

The y co-ordinate of the center of mass is the ratio of M_y to the total mass.

Total mass (m) = m₁+ m₂+ m₃

                        = 4+3+3

                        =10

The x co-ordinate of the center of mass is \frac {8}{10} = \frac {4}{5}

The y co-ordinate of the center of mass is \frac{6}{10}=\frac{3}{5}

Therefore the co-ordinate of the center of mass is = (\frac{4}{5},\frac{3}{5})

4 0
3 years ago
Does this represent a function {(-1,-8), (7,1), (3,3), (1,1)}
UkoKoshka [18]

Answer:

Yes

Step-by-step explanation:

(x,y)

Since all the domains (x) are different, this set of number is a function. In a function, the range (y), can repeat.

7 0
2 years ago
Jocab run 5 miles in 1 1/2 hours. robert runs 3 miles in 45 minutes, or 3/4 hour. who ran the faster
lana [24]

Answer: Robert ran faster than Jocab

Step-by-step explanation:

Convert the improper fraction to a proper fraction

Jocab = 5miles in 1 1/2 hours, therefore, 1 1/2 hours = 3/2 hours, to convert to minute will be 3/2 x 60 = 90 minutes

Robert = 3 miles in 3/4 hours = 45 minutes

If Robert runs 3 miles in 45 minutes, by the end of 90minutes, Robert would have covered 6miles, while Jocab covered 5miles in 90 minutes, therefore, Robert ran faster than Jocab.

3 0
3 years ago
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