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alisha [4.7K]
4 years ago
13

Solve this quadratic form 3x-2x²=7 this is grade 9​

Mathematics
1 answer:
Pani-rosa [81]4 years ago
7 0

Answer:

x

=

3

±

i

√

47

4

x=3±i474

Step-by-step explanation:

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Please help me I’ll mark brainly
lakkis [162]

Answer:

Step-by-step explanation:

In the first equation, -4 x -b should be postive 4b, so +4b, because a negative times a negative equals a postive

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Answer: the amount added to the cost price of goods to cover overhead

Step-by-step explanation:

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4 years ago
Find the value of x and y
GarryVolchara [31]

Answer:

x = 60

y = 30

Step-by-step explanation:

We know that all triangles' interior angles combined must have a sum of 180.

Since the triangle on the left is a equilateral triangle, we know that each angle is equal to 60.

Since we already know that the sum of the two angles in the top right is 90 (shown by the right angle symbol) and we know that the angle that isn't y is equal to 60, we must do the following step:

90 - 60 = y

90 - 60 = 30

y = 30

Now that we know the value of y, it's time to find the value of x.

We know that y = 30 and that the angle in the bottom right is equal to 90 (shown by right angle symbol).

Since all triangles' interior angles combined must have a sum of 180 and we already know that one angle is equal to 30 and the other is equal to 90, we must do the following:

180 - (90 + y) = x

180 - (90 + 30) = x

180 - 120 = x

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x = 60

This gives us the answers y = 30 and x = 60

7 0
3 years ago
PLEASE HELP ME IN MATH IM CONFUSED
Butoxors [25]

Answer:

the second choice is correct

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = \frac{3}{4} x - 9 is in this form

with slope m = \frac{3}{4}

• Parallel lines have equal slopes, hence

y = \frac{3}{4} x + c ← is the partial equation of the parallel line

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4 0
3 years ago
What's the slope for (-1,-6) and (5,-4)
VikaD [51]

Answer:

1/3 is the slope

Step-by-step explanation:

Use this formula \frac{y2 - y1}{x2 - x1}

Plug in (-1, -6) and (5, -4)

\frac{-4 - -6}{5 - -1} = \frac{2}{6}/2 = \frac{1}{3}

Hope this helps ya!!!

5 0
3 years ago
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