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Rina8888 [55]
3 years ago
14

Add 9a+8b-a+b and 10a-9b+6a-1b

Mathematics
2 answers:
Alina [70]3 years ago
8 0

Answer:

8a + 9b and 16a - 10b

Step-by-step explanation:

Arte-miy333 [17]3 years ago
8 0
8a + 9b and 16a - 10b

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Write two inequalities to compare -2 and -18
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here's the answer to your question

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Step-by-step explanation:

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3 years ago
11. y is directly proportional to x*2 and y = a for a
IgorLugansk [536]

The expression for y in terms of "a" when value of x is doubled is y_1=4a

<em><u>Solution:</u></em>

Given that,

y is directly proportional to x^2

Therefore,

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Where "k" is the constant of proportionality

y = a for particular value of x

Therefore,

a=kx^2 --------- eqn 1

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x is doubled means 2x

Let it be y_1

Hence we get,

y_1=k(2x)^2\\\\y_1=k \times 4x^2 --------- eqn 2

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6 0
3 years ago
Please help me with this question
Tanzania [10]

Answer:

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Step-by-step explanation:

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360º - 135º = 225

Since ∠BFC is 2xº, then we have to divide 225 by 3.

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∠BFC is twice the amount of x, so ∠BFC is 75 * 2 = 150º

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To check our answer, we can add all these angles and if they add up to 360º, we are correct.

30 + 45 + 60 + 75 + 150 = 360º :)

6 0
3 years ago
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