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3 years ago

12

The circumference of a circle is 407 cm. Find the diameter, the radius, the length of an arc of 100°, and the area of a sector w

ith central angle 100°.

1 answer:

iogann1982 [59]3 years ago

4 0

Answer: 407cm =

100° =

100° =

I hope this helps :)

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Which choice is equivalent to the quotient below?

Hoochie [10]

None of the choices are equivalent
64/4 is 16
a is 4
b is 4
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2 years ago

Un gusano está subiendo un postre que mide 2 metros de largo, en su ascenso, descansa cada 3 cm, pero por cada 3cm que avanza, r

kupik [55]

600/800 descansos porque mencionaste que se toma un descanso cada 3 cm pero se desliza 1 cm cada vez que se toma un descanso, así que solo cambia los 2 ma cm, que es 200 veces eso a 3 o 4 y obtendrás el número de descansos (acabo de adivinar)

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3 years ago

Someone please help me

aliina [53]

Answer:

8. Louis

9. Rose; Raymond

Step-by-step explanation:

8. An exponent represents the number of times the base appears as a factor in the product.

We use a coefficient to signify repeated addition: 3x means x+x+x.

We use an exponent to signify repeated multiplication. x³ means x·x·x.

So, the expression ...

$4^2\cdot 4^5\text{ means }(4\cdot4)\cdot(4\cdot4\cdot4\cdot4\cdot4)$

You can see that the factor 4 appears 7 times in the product, so would be represented in exponential form as ...

$4^2\cdot4^5=\boxed{4^7}$

Louis has correctly observed this fact. In general, we see that multiplying powers of the same base causes those powers to be added.

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9.

<u>Part A</u>. Rose is correct for the same reason as in problem 8.

5^5 · 5^2 = 5^(5+2) = 5^7

<u>Part B</u>. Raymond is correct. We know that division cancels similar terms from the numerator, so ...

$\dfrac{7^9}{7^5}=\dfrac{7\cdot7\cdot7\cdot7\cdot7\cdot7\cdot7\cdot7\cdot7}{7\cdot7\cdot7\cdot7\cdot7}=7\cdot7\cdot7\cdot7=7^{9-5}=7^4$

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The rules of exponents we're using here are ...

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3 years ago

Alina [70]

Step-by-step explanation:

Part A:

car 1 => exponential function

car 2=> linear function

Part B:

car 1 => the function f(x) = 45,000 • (0.9)^x

car 2= > the function f(x) = 45,000 - (3,000)x

Part C:

after 13 years, the value of :

car 1 => 45,000 • (0.9)^13 = $ 11,438.40

car 2=> 45,000 - (3,000)(13) = $ 6,000

the difference is = 11,438.40 - 6,000

= $ 5,438.40

its better to Belinda to purchase car 1.

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Answer:

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Step-by-step explanation:

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