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Oksana_A [137]
3 years ago
5

Heyy can you help me out on this question please

Mathematics
1 answer:
defon3 years ago
8 0
We can use quadratic formula to determine the roots of the given quadratic equation.

The quadratic formula is:

x= \frac{-b+- \sqrt{ b^{2}-4ac } }{2a}

b = coefficient of x term = 5
a = coefficient of squared term = 1
c = constant term = 7

Using the values, we get:

x= \frac{-5+- \sqrt{25-4(1)(7)} }{2(1)} \\  \\ 
x= \frac{-5+- \sqrt{-3} }{2}

So, the correct answer to this question are option E and F
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I need help with 25. 26. And 27 plz I don’t know how
luda_lava [24]

Answer:

25. 8ft

26. 3m

27. 7cm

Step-by-step explanation:

Because it says each is an area of a sqare the square root will give you the side length

4 0
3 years ago
2 2/5% as a fraction
fiasKO [112]

Answer:

3/125

Step-by-step explanation:

2 2/5 divided by 100

12/5 divided by 100

equals 3/125

6 0
3 years ago
Read 2 more answers
I know that the answer this isn't (A), and I've tried everything I know to solve this problem but still can't figure out the ans
omeli [17]
I think it is D. $1837.74.
5 0
3 years ago
Find the slope and the y-intercept of the graph of the linear equation. y=-7x+12<br><br>​
Sever21 [200]
Slope = -7

Y intercept= 13
7 0
1 year ago
Read 2 more answers
Help me pleasee (10 points)
Montano1993 [528]

Answer:

B

Step-by-step explanation:

Givens

a^2 + b^2 = c^2

a = 4x

b = x + 2

c = 3x + 4

Solution

(4x)^2 + (x + 2)^2 = (3x + 4)^3                  Remove all the brackets.

16x^2 + x^2 + 4x + 4 = 9x^2 + 24x + 16  Collect like terms on the left

17x^2 + 4x + 4 = 9x^2 + 24x + 16            Subtract the terms on the right

8x^2 - 20x - 12 = 0

This factors into

(4x - 12)(2x + 1)

There are 2 answers

4x - 12 = 0

4x = 12

x = 12/4

x = 3

or

2x + 1 = 0

2x = - 1

x = - 1/2

You have to look at x = -1/2 carefully. The problem is that 4x = 4*(-1/2) = - 2 which is not possible in Euclidean Geometry.

So the only answer is x = 3

4 0
2 years ago
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