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Anika [276]
3 years ago
7

Which method is better for solving the following equation? 4x2+7x -8= 0

Mathematics
1 answer:
julsineya [31]3 years ago
7 0
Order of operations
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Help please thanks don’t know how to do this
Setler79 [48]

Answer:

a = 11.71 ; b = 15.56

Step-by-step explanation:

For this problem, we need two things.  The law of sines, and the sum of the interior angles of a triangle.

The law of sines is simply:

sin(A)/a = sin(B)/b = sin(C)/c

And the sum of interior angles of a triangle is 180.

45 + 110 + <C = 180

<C = 25

We can find the sides by simply applying the law of sines.

length b

7/sin(25) = b/sin(110)

b = 7sin(110)/sin(25)

b = 15.56

length a

7/sin(25) = a/sin(45)

a = 7sin(45)/sin(25)

a = 11.71

6 0
3 years ago
Is s = –4 a solution to the inequality to<br><br> –2 ≥ s
slava [35]

Answer:

Yes, s = -4 is a solution to - 2  \geqslant s

This is because - 2 >  - 4.

6 0
2 years ago
A cylinder is sliced by a plane that is not parallel to the base
pickupchik [31]
I guess you are asking  what is the shape of the cross section. 

It will be an ellipse.
4 0
3 years ago
What is x divided by 8 greater than equal to 9
Stolb23 [73]

Answer:

x≥72

Step-by-step explanation:

Put into an equation then solve.

x/8≥9

x8    x8

x≥72

Hope that helped!

4 0
3 years ago
A suit is on sale for $154. If the original price of the suit was $440, what percent was discounted for the sale
Zina [86]
440(100-p)/100=154

440(100-p)=15400

44000-440p=15400

-440p=-28600

p=65%

So the price was discounted 65% off the original price.
5 0
3 years ago
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