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natali 33 [55]
3 years ago
5

Solve using the elimination method.

Mathematics
2 answers:
densk [106]3 years ago
7 0
Sorry I dont know this answer
Fofino [41]3 years ago
5 0
Explanation on picture lmk if you have any problems

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What is the solution to 9x−6<21?
Alisiya [41]

Answer:

x > 3

Step-by-step explanation:

1) Add 6 to both sides.

9x > 21 + 6

2) Simplify 21 + 6 to 27.

9x > 27

3) Divide both sides by 9.

x >  \frac{27}{9}

4) Simplify 27/9 to 3.

x > 3

<u>Therefor</u><u>,</u><u> </u><u>the</u><u> </u><u>answer</u><u> </u><u>is</u><u> </u><u>option</u><u> </u><u>B</u><u>.</u><u> </u><u>x</u><u> </u><u>></u><u> </u><u>3</u>.

7 0
3 years ago
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
What is the number two hundred seven thousand, four hundred sixty written in standard form?
Zinaida [17]

Answer:

207,460

Step-by-step explanation:

brainiest plz

5 0
3 years ago
A new pair of skates cost $75. They are on sale for 10% off. Sales tax is 8%. If you purchased the skates, how much would you pa
Aleonysh [2.5K]

Answer:

72.9

Step-by-step explanation:

10% off 75 gets you to 67.5

8% more than 67.5 is 72.9

5 0
3 years ago
Fill in the missing number to name a fraction equivalent to 8/3
Sauron [17]
Please provide the other fraction so we can give you the right number or at least a picture.
7 0
3 years ago
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