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3 years ago

Lesson 4-4 Homework The question is attached below :)

Mathematics

1 answer:

Ronch [10]3 years ago

4 0

Answer:

493.2 · 10⁸

Step-by-step explanation:

1 person = 180 bars

274,000,000 people · 180 bars per person

274,000,000 can be simplified to 274 · 10⁶

274 · 180 = 49320 · 10⁶

Now transferring this to scientific notation by moving the decimal two spaces to the left

493.2 · 10⁶ + 10² The 10² is for the two spaces to the left

493.2 · 10⁸

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Apply the appropriate mathematical operation to solve this wheel and axle problem. Diameter of axle = 3.5" Axis of handle = 21"

Leona [35]

Answer:Force=30N

Step-by-step explanation:Torque of a force on the handle= Torque of weight on the axle.

Torque is the magnitude force that acts perpendicular.

3.5 ×180=21×Force

Force= 3.5×180 /21

Force=630/21

Force=30N

6 0

3 years ago

If m∠D + m∠E = 180°, then ∠D and ∠E are classified as what kind of angles?

Archy [21]

The other person is literally wrong. The answer is D. Supplementary because two angles that add up to 180 are supplementary angles.

3 0

3 years ago

Help meh with an explication

Over [174]

Answer:

$\frac{6}{\sqrt 2}= 3\sqrt 2$

Step-by-step explanation:

Given

$\frac{6}{\sqrt 2}$

Required

Rationalize

$\frac{6}{\sqrt 2}$

To do this, we simply multiply by $\frac{\sqrt 2}{\sqrt 2}$

$\frac{6}{\sqrt 2} * \frac{\sqrt 2}{\sqrt 2}$

This gives:

$\frac{6 * \sqrt 2}{\sqrt 2 * \sqrt 2}$

$\frac{6 \sqrt 2}{2 }$

$3\sqrt 2$

Hence:

$\frac{6}{\sqrt 2}= 3\sqrt 2$

3 0

3 years ago

answer fast I will reward 50 points [] are the exponents Use the given information to complete parts I and II. In your final ans

EleoNora [17]

Answer:

see below

Step-by-step explanation:

given;

Planet Earth has an approximate diameter of 1.2742 x 10¹⁰ millimeters.

The sun has a diameter of 1.391 x 10⁶ kilometers.

find:

Part I:

Given that for every one kilometer there are 1,000,000 millimeters, which unit of measurement should be used to best represent the lengths of the sun and Earth's diameters?

Part II:

Approximate how many times greater the sun's diameter is than planet Earth's.

-------------------------------------------------------------------------------------------------------

part I:

the best measurement to represent the lengths of the sun and Earth's diameters is kilometers.

= planet dia. = 1.2742 x 10¹⁰ mm x 1 km = 12,742 km

1,000,000 mm

= sun dia. = 1.391 x 10⁶ km = 1,391 x 10³ km = 1,391,000 km

part II:

the approximate scale dia ratio of earth to sun is = sun dia. over earth's dia.

= 1,391,000 km

12,742 km

= 109.17 times

therefore,

109.17 times greater the sun's diameter is than planet Earth's.

8 0

3 years ago

Read 2 more answers

X=A- B/A. How to find A?

Airida [17]

Answer:

A = $\frac{ x+\sqrt{x^2+4b}}{2}, \frac{ x-\sqrt{x^2+4b}}{2}$

Step-by-step explanation:

First manipulate the equation as such,

$x=A-\frac{B}{A}$

$0=A - \frac{B}{A} - X$

$0=A^2 -AX - B$

Then use the quadratic formula,

$x= \frac{-b\pm\sqrt{b^2-4ac} }{2a}$ when, $0 = ax^2 +bx +c$ .

Which gives $A= \frac{ x+\sqrt{x^2+4b}}{2}, \frac{ x-\sqrt{x^2+4b}}{2}$ .

8 0

3 years ago