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3 years ago

Which of the expressions are equivalent to the one below? Check all that apply.

Mathematics

1 answer:

SIZIF [17.4K]3 years ago

3 0

D and a because they both dont change the answer and b

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PLEASE ANSWER FAST What is the average of the following two numbers? 5.67 x 10^-21 and 7.24 x 10^-19

adell [148]

Answer: The average of two numbers is $3.64835\times 10^{-19}$ .

Explanation:

The first term is,

$5.67\times10^{-21}$

The second term is,

$7.24\times10^{-19}$

Average formula is,

$Average=\frac{\text{Sum of observations}}{\text{Number of observations}}$

$Average=\frac{5.67\times10^{-21}+7.24\times10^{-19}}{2}$

$Average=\frac{5.67\times 10^{-2}\times10^{-19}+7.24\times10^{-19}}{2}$

$Average=\frac{0.0567\times10^{-19}+7.24\times10^{-19}}{2}$

$Average=\frac{(0.0567+7.24)\times10^{-19}}{2}$

$Average=\frac{(7.2967)\times10^{-19}}{2}$

$Average=3.64835\times10^{-19}$

Therefore, the average of two numbers is $3.64835\times 10^{-19}$ .

4 0

3 years ago

What is 2×4÷6 (8×3)-6=Y

Lyrx [107]

To solve this problem, you need to do it in this order: PEMDAS

(Parentheses, Exponent, Multiplication, Division, Addition, Subtraction)

2 × 4 ÷ 6(8 × 3) - 6 = Y First simplify inside the ( ), and multiply 8 by 3

2 × 4 ÷ 6(24) - 6 = Y Now multiply 6 and 24

2 × 4 ÷ 144 - 6 = Y Multiply 2 and 4

8 ÷ 144 - 6 = Y Divide 8 and 144

18 - 6 = Y Subtract 18 and 6

12 = Y

5 0

3 years ago

Please find the question

melisa1 [442]

Answer:

By distance formula ,

AB² = (5+1)² + (3-6)²

AB² = 36 + 9

AB = 6.71 units

6 0

4 years ago

Find the quotient. Answer as a decimal. –6 ÷ 1 1 3 3 1

morpeh [17]

Answer:

≈ -0.0005

Step-by-step explanation:

7 0

3 years ago

Find the slope 3,3 and 1,8

KATRIN_1 [288]

Answer:

-5/2

Step-by-step explanation:

slope=y2-y1/x2-x1

8-3/1-3

5/-2

-5/2

4 0

3 years ago