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Vlad1618 [11]
3 years ago
11

Rob is

Mathematics
1 answer:
rjkz [21]3 years ago
3 0
It will cost around 30.00 dollars
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What is a other name for the set of all x-values
Oliga [24]

Answer:

its domain

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
What is the answers to number 27
serg [7]

The speed of plane 1 will be 300 miles/sec and that of plane 2 will be 600 miles/sec.

We have two planes flying in opposite directions to each other.

We have to determine how fast was the each plane flying.

<h3>What is the formula to calculate the distance covered by the object moving with speed -  x m/s  in time -  t s ?</h3>

The formula to calculate the distance travelled will be -

distance = speed x time = (xt) meters

According to the question -

Let us assume that the speed of plane 1 =  v miles/sec.

Then, the speed of plane 2 will be = 2v miles/sec.

Distance covered by plane 1 in 3 hours will be = 3v miles.

Distance covered by plane 2 in 3 hours will be = 3 x (2v) miles = 6v miles.

Since they are 2700 miles apart after three hours, therefore -

3v + 6v = 2700

9v = 2700

v = 300 miles/sec

Hence, the speed of plane 1 will be 300 miles/sec and that of plane 2 will be = 2v = 2 x 300 = 600 miles/sec.

To solve more questions on Algebraic word problems , visit the link below -

brainly.com/question/21334880

#SPJ1

5 0
1 year ago
What is the percent increase of 10 to 24?
Aleks [24]
Let me explain it like this. add an extra 0 after 10 and you have 100 so every time you add 10 to the original number you are adding 100% so your answer would be 140%
6 0
4 years ago
Read 2 more answers
Let a=⟨1,−4,2⟩ and b=⟨−5,−5,−2⟩. Compute:
AnnyKZ [126]

Answer:

a + b = ⟨-4, -9, 0⟩

a - b = ⟨6, 1, 4⟩

2a = ⟨2, -8, 4⟩

3a + 4b = ⟨-17, -32, -2⟩

|a| = √21

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> </u>

<u>Pre-Calculus</u>

Vectors

  • Operations
  • Scalars
  • [Magnitude] ||v|| = √(x² + y² + z²)

Step-by-step explanation:

Adding and subtracting vectors are follow the similar pattern of normal order of operations:

a + b = ⟨1 - 5, -4 - 5, 2 - 2⟩ = ⟨-4, -9, 0⟩

a - b = ⟨1 + 5, -4 + 5, 2 + 2⟩ = ⟨6, 1, 4⟩

Scalar multiplication multiplies each component:

2a = ⟨2(1), 2(-4), 2(2)⟩ = ⟨2, -8, 4⟩

Remember to multiply in the scalar before doing basic operations:

3a + 4b = ⟨3(1), 3(-4), 3(2)⟩ + ⟨4(-5), 4(-5), 4(-2)⟩ = ⟨3, -12, 6⟩ + ⟨-20, -20, -8⟩ = ⟨-17, -32, -2⟩

Absolute values surrounding a vector signifies magnitude of a vector. Follow the formula:

|a| = √[1² + (-4)² + 2²] = √21

7 0
3 years ago
What is the equation of the line that passes through the points (15,9) and (-2,9)?
harkovskaia [24]
Slope Is 0 so y=9


....









6 0
4 years ago
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