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2 years ago

I need help with number 7 and 8 and 9!

Mathematics

1 answer:

ELEN [110]2 years ago

7 0

Answer:

in the 8 is ADB, in the 7 I'm not sure about you need to do sorry, or maybe you need to classify what triangle it is think is a scalene triangle because has a different measurements

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Solve equation: –6 + 3x = –9

ICE Princess25 [194]

3x=-9+6
3x=-3
x=-3/3
x=-1

3 0

3 years ago

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A is directly proportional to b. When a is 6, b is 72. Find b when a is 8. 3

adelina 88 [10]

Answer:

a) "K" is proportional Constant K= 0.0833

b) The value of b = 99.639

Step-by-step explanation:

Explanation :-

Given 'a' is directly proportional to 'b'

a ∝ b

a = k b ....(i)

where "K" is proportional Constant

Case(i):-

when a =6 and b=72

a = k b

⇒ 6 = k (72)

⇒ $K = \frac{6}{72} = \frac{1}{12} = 0.0833$

Case(ii):-

Given a = 8.3

a = k b

⇒ 8.3 = 0.0833 ×b

⇒ $b = \frac{8.3}{0.0833} = 99.639$

Final answer:-

a)"K" is proportional Constant K= 0.0833

b) The value of b = 99.639

6 0

3 years ago

T - 6 1/3 = - 9 3/4 solve this !

Radda [10]

Answer: T=-3 5/12

Step-by-step explanation: 6 1/3-6 /13

6 1/3-9 3/4= -3 5/12

T= -3 5/12

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3 years ago

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How many square feet of paper do you need to cover a cube with a side 10in long

JulsSmile [24]

10in = 0.833333ft^2 that is the total amount for one side. For a cube that has 6 sides, you multiply 0.833333 by 6.

You need 4.999998ft^2 of paper

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3 years ago

Is u = - 1/2 a solution of 8u - 1 = 6u

saul85 [17]

Answer: No.

Step-by-step explanation: Sub -1/2 in for u in the equation:

8(-1/2) - 1 =6(-1/2)

=-4-1 = -3

-5=-3 which is false, so it is not a solution

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3 years ago

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