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d1i1m1o1n [39]
3 years ago
8

Find the sum -6/3 - (-7/15)

Mathematics
2 answers:
Brums [2.3K]3 years ago
8 0

Answer:

-1 \frac{8}{15}

Step-by-step explanation:

That's the answer I think

balandron [24]3 years ago
8 0

Answer:

- 23/15 or - 1 8/15

Step-by-step explanation:

When you want to subtract fractions, you first want to see if they have the same denominator. In this case, there isn't a common denominator so we need to make it so there is. Since 15 is the larger one and a multiple of 3, we can change -6/3 to -30/15 by multiplying the top and bottom by 5. Now the double negatives cancel each other out so instead of -30/15 - (-7/15), it will be -30/15 + 7/15. Add them together and you get -23/15.

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If f(1) = 1 and f(n + 1) = 5f(n) + 3 then find the value of f(4).
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218

Step-by-step explanation:

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Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
X^2-x-12 factor completely
steposvetlana [31]
Use the sum-product pattern

2
−

−
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x
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x
−
12
x2−x−12

2
+
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−
1
2
x
2
+
3
x
−
4
x
−
12
x2+3x−4x−12
2
Common factor from the two pairs

2
+
3

−
4

−
1
2
x
2
+
3
x
−
4
x
−
12
x2+3x−4x−12

(

+
3
)
−
4
(

+
3
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x
(
x
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−
4
(
x
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x(x+3)−4(x+3)
3
Rewrite in factored form

(

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−
4(+3)x
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(−4)(+3)
(x−4)(x+3)
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5 0
2 years ago
A right triangle has a hypotenuse of length 9 inches. If one angle is 35 degrees, find the length of each leg.
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<span>90 + 35 = 125.
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21.1 + 42.9= 64 inches</span>
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