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Elza [17]
3 years ago
13

I need help please????

Mathematics
1 answer:
Naddika [18.5K]3 years ago
6 0

No, the inequality sign is only reversed when dividing by a negative number. The answer to this inequality is h=-8

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Expand and simplify bracket please quickly
natulia [17]

Answer:

4y²-1/4 is the required answer

Step-by-step explanation:

(2y -  \frac{1 }{2} )(2y +  \frac{1}{2} ) \\ using \: formula \:  {x}^{2}  - y {}^{2}  = (x - y)(x + y) \\ 4y {}^{2}  -  \frac{1}{4}

4 0
1 year ago
Factor by grouping.......
Gekata [30.6K]

Answer:

A. (7n-1) (8n-1)

Step-by-step explanation:

56n^2 -8n-7n+1

56n^2 -8n       -7n+1

Factor out 8n from the first group   and -1 from the second group

8n (7n-1)     -1(7n-1)

Factor out the (7n-1)

(7n-1) (8n-1)

7 0
3 years ago
5 plus the difference of 9 and 4
irakobra [83]
So first, you subtract 9 and 4, which gives you 5. Then, you add that to 5. That gives you 10.
6 0
3 years ago
The imaginary coefficient of 18 + 15i is?
kykrilka [37]

Answer:

I bc it has an invisible 1 at the side

6 0
3 years ago
The flag of a country contains an isosceles triangle.​ (Recall that an isosceles triangle contains two angles with the same​ mea
Semmy [17]

Answer:

40,40 and 100

Step-by-step explanation:

You know the first two angles are identical, so let's call them x.

The third angle is 20 more than twice the measure of either angle, which means 2x+20.

The angles of a triangle add up to 180 degrees.

(x)+(x)+(2x+20)=180

4x+20=180

4x=160

x=40 degrees

This means the angle measures equal 40 degrees, 40 degrees, and 100 degrees.

6 0
3 years ago
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