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schepotkina [342]
3 years ago
9

Alguém sabe como faz essas duas questões ?

Mathematics
1 answer:
joja [24]3 years ago
7 0

Minha resposta: não.

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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
HURRY I NEED THIS BEFORE 12
I am Lyosha [343]
X=8 because add 11 to both sides and it becomes 28=3.5x and divide both sides by 3.5 so x=8
5 0
3 years ago
How many different ways can 5 students line up in a cafteria
lina2011 [118]
Ans: 120 different ways
7 0
2 years ago
"400 reduced by 4 times my age is 116." what is his age?
Lynna [10]
400 reduced by 4 times my age is 116...

400 - 4x = 116
-4x = 116 - 400
-4x = - 284
x = -284/-4
x = 71 <===
4 0
2 years ago
.<br> Put f(x) = x2 + 3 in y2.
saveliy_v [14]

Answer:

(X2+3)2

Step-by-step explanation:

First, you have to substitute in what f(x) equals for y since f(x) stands for y.

By doing this, the equation turns into (x2+3)2, because x2+3 is y, and 2 because the original equation way y2.

After you substitute, the answer is (x2+3)2.

5 0
2 years ago
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