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tatyana61 [14]
3 years ago
15

Multiply please and thank u

Mathematics
1 answer:
WARRIOR [948]3 years ago
7 0
First of all, you need to distribute the -2 to the numbers in the parenthesis
so -2 (12k^2 - 3)
-24k^2 +6
back into the problem,
\frac{k+3}{-24k^2+6}

Hope this helps :)
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Evaluate −x+| y | when x=1/3 and y=−7/4. Write your answer as a fraction in simplest form.
Alinara [238K]

Answer:

Step-by-step explanation:

- 1 / 3 + - 7/4

-4/12 - 21/12

=-25/12

5 0
3 years ago
For each function, what is the output of the given input? for f(x) = 4x 7, find f(4)
shusha [124]
I hope this helps you




x =4



f (4)= 4.4+7 = 16+7=23



f (4)= 4.4-7=16-7=9
6 0
3 years ago
A freight train leaves a station and travels north at 60 mph. 4 hours ​later, a passenger train leaves on a parallel track and t
harkovskaia [24]

Answer:

first do:

60mph * 4 hours= 240mi

Let D = the distance the passenger train has to  

travel to catch the freight train

Start a stopwatch when the passenger train leaves

Let t = the time on the stopwatch when they meet

Equation for freight train:

d-240=60t

Equation for passenger train:

d=100t

all together:

100t-240=60t

we can do 100t-60t because they both have (t)= 40t

40t=240 *now divide 240 by 40= 6

THEN do:

D= 100mph x 6= 600mi

They will meet 600 mi from the station

to check:

d-240=60t x 6

600-240= 360

60 x 6= 360

360=360

5 0
3 years ago
What is the area, in square feet, of the shape below?
grin007 [14]

Answer:

17.4 ft²

Step-by-step explanation:

The formula to find the area of a triangle:

1/2 x b x h, where b is the base and h is the height.

1) Substitute the given values into the formula and solve it.

= 1/2 x 6 x 5.8

= 1/2 x 34.8

= 17.4

7 0
2 years ago
Read 2 more answers
For g(x)=1/2x-11, find x when g(x)=-5
Vesna [10]

Answer:

x = 12

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

<u>Algebra I</u>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

g(x) = 1/2x - 11

g(x) = -5

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute:                    -5 = 1/2x - 11
  2. Isolate <em>x</em> term:              6 = 1/2x
  3. Isolate <em>x</em>:                       12 = x
  4. Rewrite:                        x = 12
7 0
2 years ago
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