2 years ago

Estimate the sum by clustering 8.3 + 7.9 + 8.11 + 8.35 + 7.65 + 8.1.

Mathematics

1 answer:

PSYCHO15rus [73]2 years ago

5 0

The answer is around 48.40

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4x+5=17-2x systematic method solve the equation and check result

marta [7]

Answer:

x=2

Step-by-step explanation:

add 2x to both sides and subtract 5 from both sides

6x = 12

divide by 6

x=2

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3 years ago

WILL GIVE BRAINLIEST! In the figure, a∥b and m∠1 = 34°.

dsp73

Answer:

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Step-by-step explanation:

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2 years ago

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marta [7]

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Seattle, WA and San Francisco, CA lie on the same longitudinal line. San Francisco is at 38° latitude and Seattle is at 47° lati

Helen [10]

Step 1.

Calculate measure of angle α:

$47^o-38^o=9^o$

Step 2.

Calculate what fraction of the angle 360° is the angle α:

$\dfrac{9^o}{360^o}=\dfrac{1}{40}$

Step 3.

Calculate the circumference of the Earth (circle):

$C=2\pi r\to C=2\pi\cdot4000=8000\pi\ mi$

Step 4.

The length of arc is equal 1/40 of the circumference:

$\dfrac{1}{40}C=\dfrac{1}{40}\cdot8000\pi=200\pi\ mi$

$\pi\approx3.14\to\dfrac{1}{40}C\approx200\cdot3.14=628\ mi$

<h3>Answer: A) 628 miles</h3>

7 0

3 years ago

Express 763636363636 as a rational number

shtirl [24]

$x=0.7636363\ldots$
$10x=7.636363\ldots$
$1000x=763.636363\ldots$

$\implies1000x-10x=990x=756\implies x=\dfrac{756}{990}=\dfrac{42}{55}$

4 0

2 years ago