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Sever21 [200]
3 years ago
9

A number, x, rounded to 1 significant figure is 200Write down the error interval for x.​

Mathematics
1 answer:
makkiz [27]3 years ago
4 0

Answer: 150 <= x < 250

Step-by-step explanation:

A number, x, rounded to 1 significant figure is 200

Write down the error interval for x

Rounding x to 1 significant figure means that all subsequent digits after the first is rounded down to zero(0) (if the immediate number after the first is digit 5 or more, it is rounded to 1 and added to the first digit).

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If x=-7 and y=3x+2, then y equals what number?
kati45 [8]

Answer:

y =  -19

Step-by-step explanation:

3 0
3 years ago
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Given f(x) = -x – 4, find f(4).<br> I need help
Brums [2.3K]

Answer:

f(4) = -8

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

<u>Algebra I</u>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = -x - 4

f(4) is x = 4

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                  f(4) = -4 - 4
  2. Subtract:                            f(4) = -8
5 0
3 years ago
Use the coordinates to find the perimeter of the rectangle. D(1,2), E(1,7), F(4,7), G(4,2) *
JulsSmile [24]

Answer:

  16

Step-by-step explanation:

DE is the vertical line x=1. It extends between y=2 and y=7, a distance of 5 units.

EF is the horizontal line y=7. It extends from x=1 to x=4, a distance of 3 units.

Then the perimeter of half the rectangle is 5+3 = 8 units.

The perimeter of the rectangle is 2·8 = 16 units.

7 0
4 years ago
there were a total of 125 cars at a car dealership. A salesperson sold 68 of the cars in one month. Write and solve an inequalit
Angelina_Jolie [31]
Let c represent the number of cars that the salesman has left to sell.

      68 + c ≤ 125
68-68 + c ≤ 125 -68
               c≤57
The solution is c ≤ 57. The salesman has at most 57 cars left to sell

Answer:
68 + c ≤ 125; c ≤ 57 cars or less left to sell.
4 0
4 years ago
Estimate the quotient of 239.63 ÷ 7.51
Colt1911 [192]
<span>239.63 ÷ 7.51
estimate
= 240 / 8
= 30</span>
5 0
3 years ago
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