3 years ago

Calculate the value of (6.9x10^-3)x(2x10^9) Give your answer in standard form.

Mathematics

1 answer:

leva [86]3 years ago

8 0

I think the answer is 1.38 times 10^7.

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Adelita, Elena, Betina, and Bianca each work as a doctor, lawyer, teacher, or banker. From these clues, decide who is the doctor

Zepler [3.9K]

Answer: Adelita

Step-by-step explanation:

because if its going in order of the names by jobs then its adelita

7 0

2 years ago

What is the value of 9x^2 + 13x – 15, if x = 2

Paladinen [302]

Step-by-step explanation:

Given,

$9 {x}^{2} + 13x - 15$

and

$x = 2$

Substitute x = 2 into expression.

$9 {x}^{2} + 13x - 15 = 9( {2}^{2} ) + 13(2) - 15 \\ = 9(4) + 26 - 15 \\ = 36 + 26 - 15 \\ = 62 - 15 \\ = 47$

3 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=1%20%2B%20%20log_%7B2%7D%28x%20-%202%29%20%20%3D%20%20%20log_%7B2%7Dx" id="TexFormula1" title=

fenix001 [56]

Move all the logarithms on the left hand side, and all the constants on the other:

$\log_2(x-2) - \log_2(x) = -1$

Use the rule of logarithms

$\log_a(b) - \log_a(c) = \log_a\left(\dfrac{b}{c}\right)$

To rewrite the equation as

$\log_2\left(\dfrac{x-2}{x}\right) = -1$

Evaluate 2 to the power of each side:

$\dfrac{x-2}{x} = 2^{-1} = \dfrac{1}{2}$

Multiply both sides by 2x:

$2(x-2) = x \iff 2x-4 = x \iff x = 4$

6 0

3 years ago

Read 2 more answers

What is the area of a regular pentagon with a side of 7.2 and an apothem of 7

timofeeve [1]

The area of a regular polygon is given by the formula which is expressed as:

area = (½)(apothem)(perimeter)

We calculate as follows:

area = (½)(7)(7.2 x 5)
area = 126 square units

Hope this answers the question.

5 0

3 years ago

Do this and I’ll pay u I need help

frutty [35]

Answer:

"bring me my money"

Step-by-step explanation:

8 0

3 years ago