1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Murljashka [212]
3 years ago
10

If z = 12.8, what is the value of 2(z - 4)? [Type your answer as a number.]

Mathematics
2 answers:
Y_Kistochka [10]3 years ago
8 0
So when evr you have a number outside of parenthense you mulitply

12.8 = z

12.8z - 4= 8.8

8.8 x 2=17 . 6
Anna35 [415]3 years ago
7 0
17.6 is your answer 

Hope this helps!!
You might be interested in
There is a L-shaped sidewalk that is 158 meters long. By cutting across the lawn, the
NikAS [45]

Answer:

Each side of the L-shaped sidewalk is 126 m and 32m respectively.

Step-by-step explanation:

Given:

Total length of the sidewalk = 158 meters

Cutting across the lawn the distance = 130 meters

The L-shaped lawn will be treated as a right angled triangle.

So the 130 m distance is the hypotenuse here.

Let one side of the L-shaped lawn be 'x' meter so the another side will be (158-x) meters.

Applying Pythagoras formula.

(Hypotenuse)^2=(height)^2+(base)^2

So,

⇒ (130)^2=x^2 +(158-x)^2

⇒ (130)^2=x^2+(158-x)(158-x)

⇒ 16900=x^2+24964-158x-158x+x^2

⇒ 16900 =2x^2-316x+24964

⇒ 2x^2+316x+24964-16900=0

⇒ 2x^2-316x+8064=0

⇒ x^2-158x+4032=0

Applying quadratic formula;

Quadratic formula : \frac{\pm b \sqrt{b^2-4ac} }{2a} where a=1 and b=-158 and c=4032

So the value of x= 126 and 32.

The length of each side of the sidewalk is 'x'= 126 m and '(158-x)'='(158-126)'=32 m

7 0
3 years ago
How do you solve 39 equal to 1 3/10b
elena-s [515]
If 39 = (1 3/10)b, we could simplify this by writing 39 - (13/10)b.

Solve this for b by mult. both terms by (10/13):

(10*39)
----------- = (10/13)(13/10)b.  Then b = 30 (answer)
      13
5 0
3 years ago
Which is bigger 2/3 or 1/3?
Lyrx [107]

2/3 is bigger than 1/3......TO CHECK this answer 2/3=66% or .66 and 1/3=33% or .33

Therefore, 2/3(66%) is greater than 1/3(33%)

2/3>1/3

5 0
3 years ago
Read 2 more answers
Opal made t-shirts. It cost $39 to print one shirt. It costs $75 for 10 shirts. Write an equation to represent the
RUDIKE [14]

Answer:

39 X 10=75

Step-by-step explanation:

‍♀️

4 0
3 years ago
Slove -2 1/3 - (-5) =
STatiana [176]

Answer:

which principle prevents a brach from abusing  its power

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • You work as a lab assistant. Each morning you are responsible for grouping the correct number of test tubes for
    10·1 answer
  • O
    7·1 answer
  • What does a function return?<br> O a procedure<br> O a routine<br> O a value<br> O a subroutine
    9·2 answers
  • 5x + 7y + 12 how many terms are there
    7·1 answer
  • What is the decay factor that corresponds to a 10% decrease?
    8·1 answer
  • 1. Evaluate each algebraic expression.
    12·1 answer
  • 12×(3 + 2²)÷2-10= ??????????<br><br><br><br><br><br><br>​
    6·2 answers
  • Any help? Explanation would help massively too! Work out the length of AB
    13·2 answers
  • What is the probability of spinning a yellow?
    9·1 answer
  • PLEASE HELP FAST) A ship travels 10 miles from Point A to Point B, makes a turn of 112, and
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!