Please Help! Brainliest going!
Please Help! Brainliest going! - 1

Answers

Answer 1
Answer:

Answer: 7/4

Step-by-step explanation:

you would first add 5 to both sides

4x-5+5= -12+5

then simplify

4x= -7

divide 4 on both sides

4x/4= -7/4

and you get x=7/4

Answer 2
Answer:

Answer:

The answer to your question is:

x = 2

y = 4

Step-by-step explanation:

     4x - 5y = -12       (1)

      -x + 5y = 18        (2)

Solve the system

                                               4x - 5y = -12

                                                 -x + 5y = 18

                                              3x   + 0 = 6

                                               3x = 6

                                                  x = 6 / 3

                                                  x = 2

                  Substitution

                                     4(2) - 5y = -12

                                      8 -5y = -12

                                          -5y = -12 - 8

                                          -5y = -20

                                           y = -20 / -5

                                           y = 4    


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PLEASE EXPLAIN!!!Concrete can be purchased by the cubic yard. How much will it cost to pour a slab 18 feet by 18 feet by 6 inches for a patio if the concrete costs $42.00 per cubic yard?

Answers

The easiest thing to do is convert all the measurements to yards...
 18ft = 6 yards
 6 inch = 1/6 yard     ( 6 inches = 1/2 ft.... so 1/6 yard)
  so the volume is V = 6 x 6 x 1/6
 Then all you do is calculate the cost. I hope this helps you out

Multiply c^2(c^2-10c+25)

Answers

Step-by-step explanation:

c^2( c^2-10c+25)

=c^4 - 10c^3 + 25c^2

If f( x ) = 5x -2, what is f( 3 ) ?

F- 0
G- 8
H- 13
J - 15

Answers

Answer:

H.  13

Step-by-step explanation:

To find the output of a function, substitute the value given in parentheses for x, and do the operations.

Given f(3)

f(3) = 5(3) - 2

f(3) = 15 - 2

f(3) = 13

Answer:

its 13 ^^

Step-by-step explanation:

Which expression is equivalent to 56 + 21?07(49 + 14)
8(7 + 21)
8(48 + 13)
07(8 + 3)

Answers

Answer:

07(8 + 3) is the right answer

10. The ratio of the number of male employees to the number of female employees in Westlake high school is 6:5. There are 40 females in the school. How many total employees are in Westlake high school?

Answers

Answer:

45

Step-by-step explanation:

Male = 6          Male = ?

Female = 5      Female = 40

                                         ^

? = 6x5 because 5x5 = 40

Find the leg of each isosceles right triangle when the hypotenuse is of the given measure.Given = 6 square root two cm

Answers

we have given 
hypotenuse=6√2
let us suppose leg =a
using Pythagorean theorem
a^2+a^2=(
6√2)^2
2a^2=36*2
diving by 2 on both sides
a^2=36
taking square root on both sides
√a^2 =√36
a=6
therefore
the leg of each isosceles right triangle is 6