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2 years ago

Need help with this one question

Mathematics

1 answer:

loris [4]2 years ago

8 0

Answer:

71.6599

Step-by-step explanation:

I think if I’m wrong please tell me

wich ik I’m probably wrong

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Not sure how I would solve this

suter [353]

<h3>Answers:</h3>

The first ordered pair is ( -4 , -3 )

The second ordered pair is ( 8, 3 )

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Explanation:

The first point is (x,-3) where x is unknown. It pairs up with y = -3 so we can use algebra to find x

x-2y = 2

x-2(-3) = 2 ... replace every y with -3; isolate x

x+6 = 2

x = 2-6

x = -4

The first point is (-4, -3)

---------------------------

We'll do something similar for the other point. This time we know x but don't know y. Plug x = 8 into the equation and solve for y

x-2y = 2

8-2y = 2

-2y = 2-8

-2y = -6

y = -6/(-2)

y = 3

The second point is (8, 3)

4 0

3 years ago

you can use the expression 5n to determine the amount of money you have in cents, when you have n nickels. Find the amount of mo

Anni [7]

Answer:

90 cents

Step-by-step explanation:

Find how much money you have by plugging in 18 as n into the expression:

5(18)

Multiply:

= 90

So, when you have 18 nickels, you have 90 cents

8 0

3 years ago

HELP WILL MARK BRAINLIEST PLEASE ANSWER ALL THREE

Anna11 [10]

Five is b
Six is a
Seven is a
Goood day now

5 0

3 years ago

Brooke has to set up 70 chairs in equal rows for the class talent show. But, there is not room for more then 20 rows. What are t

grin007 [14]

Answer:

The answer is 2, 5, 7, 10, and 14.

Step-by-step explanation:

Let x be the number of rows. There is not room for more than 20 rows:

x ≤ 20

Since all rows must be equal, when we divide 70 by x, we must get a whole number. So, we must find all divisors of 70 smaller or equal to 20 and they are: 2, 5, 7, 10, and 14.

So, the possibilities are:

2 rows with 35 chairs in each row

5 rows with 14 chairs in each row

7 rows with 10 chairs in each row

10 rows with 7 chairs in each row

14 rows with 5 chairs in each row

Hope this helps!!

~CoCo

7 0

3 years ago

What’s the answer For E

Vika [28.1K]

Answer:

∠E = 146°

Step-by-step explanation:

an isosceles triangle has both two equal sides and two equal angles
the sum of the interior angles of a triangle is 180°
the measure of third angle = the sum of the interior angles - the sum of two angles

E = 180 - (71 + 71) = 146

∠E = 146°

5 0

3 years ago