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Ket [755]
3 years ago
9

I need help with this

Mathematics
1 answer:
Akimi4 [234]3 years ago
5 0

Answer:

-9 < 26

Explanation of the Inequality:

This inequality means that the low temperature in Anchorage, Alaska was lower than the low temperature in Flagstaff, Arizona.

***Draxx them sklounst***

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If the given values in a right triangle are cos A =
Vlad1618 [11]
See the picture attached to better understand the problem

we know that
in the right triangle ABC
cos A=AC/AB
cos A=1/3
so
1/3=AC/AB----->AB=3*AC-----> square----> AB²=9*AC²---->  equation 1

applying the Pythagoras Theorem
BC²+AC²=AB²-----> 2²+AC²=AB²---> 4+AC²=AB²----> equation 2

substitute equation 1 in equation 2
4+AC²=9*AC²----> 8*AC²=4----> AC²=1/2----> AC=√2/2
so
AB²=9*AC²----> AB²=9*(√2/2)²----> AB=(3√2)/2

the answer is
the hypotenuse is (3√2)/2

5 0
3 years ago
Find the distance between (6, -7), (3, -5) round your answer to the nearest tenth
saw5 [17]

Answer:

d ≈ 3.6 units

Step-by-step explanation:

calculate the distance d using the distance formula

d = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2    }

with (x₁, y₁ ) = (6, - 7 ) and (x₂, y₂ ) = (3, - 5 )

d = \sqrt{(3-6)^2+(-5-(-7))^2}

   = \sqrt{(-3)^2+(-5+7)^2}

   = \sqrt{9+2^2}

   = \sqrt{9+4}

    = \sqrt{13}

    ≈ 3.6 ( to the nearest tenth )

3 0
2 years ago
Katrina had a bookcase that holds 200 books. She can put 20 books on each shelf. If 20% of the bookcase is empty, how many shelv
Tom [10]

Answer:

First, find 20% of the 200 books. Then, subtract that amount by the total and divide that amount by 20 to receive your answer.

Step-by-step explanation:

20 x 200

/100  = 40

Therefore, there are 40 books missing.

200-40 = 160

160/20 = 8 shelves are filled with books.

There are 10 shelves in total: 160 books are on 8 shelves and 40 books are missing for 2 shelves

5 0
3 years ago
A line passes through point (-6,-5) and has a slope of -3/2 <br><br> write in Ax+by=c
Evgesh-ka [11]

Answer:

-6x+-5y= -3/2

Step-by-step explanation:

Hope this helps

7 0
3 years ago
PLEASE ANSWER QUICKLY, WITH THE ACTUAL ANSWER!
GalinKa [24]

Answer:

b

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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