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3 years ago

Evaluate teh expression. 4 + 3 × [6 ÷ (4 + 2)]2 A) 7 B) 8 C) 9 D) 12

Mathematics

2 answers:

Bumek [7]3 years ago

8 0

FOLLOW ME FOR CLEARING YOUR NEXT DOUBT

Grace [21]3 years ago

3 0

Answer:

The answer I got was A. 10

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Line a is formed by using the points -1,6 and 3,-2 Line B is formed by using the point -3,0 and 5,4.What linear equations can be

emmasim [6.3K]

Answer:

y = -x + 5

y = x/2 + 3/2

Step-by-step explanation:

First we calculate the slope as difference between coordinates

a) P₁ ( -1 , 6 ) P₂ ( 3 , 2 )

m = Δy/Δx ⇒ m = ( y₂ - y₁ ) / ( x₂ - x₁ ) ⇒ m = (2 -6 ) / (3 -(-1))

m = -4 /4

m = -1

Now we have:

y - y₁ = m ( x - x₁ ) ⇒ y - 6 = (-1) ( x - (-1))

y - 6 = -1 * ( x + 1 ) ⇒ y - 6 = - x - 1

y = -x + 5

In the second case

Q₁ ( -3 , 0 ) Q₂ ( 5 , 4 )

Again we calculate the slope

m = Δy / Δx ⇒ m = ( 4 - 0 ) / ( 5 - (-3)) ⇒ m = 4 / 8 ⇒ m = 1/2

m = 1/2 or x = 0,5

And

y - y₁ = 1/2 ( x - x₁ ) ⇒ y - y₁ = 1/2 ( x - (-3)) ⇒ y - 0 = 1/2 * x + 3/2

y = x/2 + 3/2

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3 years ago

How can you determine if a number is a rational number?

FinnZ [79.3K]

A rational number is a number that can be written as a ratio. That means that it can be written as a fraction. The numerator and the denominator both need to be whole numbers for it to be rational. For example, 2 is a rational number because it can be written as the fraction 2/1.

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3 years ago

Jason's checkbook had a balance of $525.02 on May 5 . On May 6 , he wrote a check for $107.65 at the grocery store . On May 8 ,

velikii [3]

Answer:

$244.37

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

What is the equation for the axis of symmetry of your quadratic ? <br> Y=x^2-4x

vekshin1

Answer:

$y = {x}^{2} - 4x \\ y = x(x - 4)$

6 0

3 years ago

What are the first and last terms of this geometric series

11Alexandr11 [23.1K]

ANSWER

E. 10 and 640

EXPLANATION

The given series is

$\sum_{i=1}^45 \times 2^{2i-1}$

To find the first term of the series we substitute i=1 to get,

$a_1 = 5 \times {2}^{2 \times 1 - 1}$

$a_1 = 5 \times {2}^{ 1} = 10$

For the last term of the series, we substitute i=4 to obtain,

$a_4 = 5 \times {2}^{2 \times 4 - 1}$

$a_4 = 5 \times {2}^{7}$

This implies that,

$a_4 = 5 \times 128 = 640$

Therefore the correct answer is E

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3 years ago