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3 years ago

12

Multiply (1.4 x 10^2) x (2.0 x 10^-5)

1 answer:

Mars2501 [29]3 years ago

5 0

Answer:

2.8 x 10^-3

Step-by-step explanation:

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Marta is making two different charms for necklace one charm has a 1 cm diameter and a 3.14 cm circumference of a similar charm h

EastWind [94]

From what I can pick up from your problem statement, you want to know "<span>a similar charm has a diameter of 4 cm what is the circumference." Please, would you use proper punctuation in your writing, for greater clarity:

"A</span><span> similar charm has a diameter of 4 cm. What is the circumference?"

The formula for the circumference of a circle, when the diameter is known, is

C=</span> $\pi$ d or C=pi*d

In this case, with diamter 4 cm, the circumference, C, is 4pi cm.

3 0

3 years ago

The sets of numbers 7, 24, 25 and 9, 40, 41 are Pythagorean triples. Use what you know about the Pythagorean Theorem and explain

Ipatiy [6.2K]

Answer:

See below

Step-by-step explanation:

Because $a^2+b^2=c^2$ has to remain true, then $7^2+24^2=25^2$ is a Pythagorean Triple as $49+576=625$ . Also, $9^2+40^2=41^2$ works because $81+1600=1681$ .

3 0

3 years ago

Chen’s house is 53 years old. This is 5 more than twice the age of Sunny’s house, h.

tankabanditka [31]

Answer:

The Equation which shows the equality is 53 = 2 h + 5 ,

The age of Sunny's house is 24 years old

Step-by-step explanation:

Given as ;

The age of the house of Chen's is 53 years old

Let the age of of the house of sunny = h years old

So, according to question

Chen's house age is 5 years more than twice the age of sunny's house

I.e Chen's house age = 2 × sunny's house age + 5

Or, 53 = 2 × h + 5

or, 2 × h = 53 - 5

so . 2 × h = 48

∴ h = $\frac{48}{2}$ = 24 years

Hence The Equation which shows the equality is 53 = 2 h + 5 , And The age of Sunny's house is 24 years old . Answer

5 0

4 years ago

Help Me Please. Im very stuck

Zielflug [23.3K]

Answer:

28 sq units

Step-by-step explanation:

i wrote it down on paper so yea

6 0

3 years ago

The points (2, 5) and (6,-3) fall on a particular line. What is its equation in slope-intercept form?

Pachacha [2.7K]

Answer:

y = -2x + 9

Step-by-step explanation:

slope intercept form : y = mx + b

where m = slope and b = y intercept

first let's find the slope

slope formula :

$m = ( \frac{y2 - y1}{x2 - x1} )$

where the x and y values are derived from the given points

here we are given (2,5) and (6,-3)

(x1,y1) = (2,5) so x1 = 2 and y1 = 5

(x2,y2) = (6,-3) so x2 = 6 and y2 = -3

we now plug these values into the formula

recall formula

$m= ( \frac{y2 - y1}{x2 - x1} )$

plug in x1 = 2, y1 = 5, x2 = 6 and y2 = -3

m = (-3 - 5) / ( 6 - 2 )

m = (-8)/(4)

m = -2

the slope is -2

now to find the y intercept we plug in the slope and the x and y value of a given point into slope intercept form and solve for b

y = mx + b

given point : (2,5) x = 2 , y = 5, m = -2

5 = -2(2) + b

5 = -4 + b

9 = b

so the equation would be y = -2x + 9

6 0

3 years ago