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Rainbow [258]
3 years ago
6

Please help me and my daughter.

Mathematics
2 answers:
valina [46]3 years ago
7 0

Step-by-step explanation:

3x2−7x−20=03x2-7x-20=0

Use the quadratic formula to find the solutions.

−b±√b2−4(ac)2a-b±b2-4(ac)2a

Substitute the values a=3a=3, b=−7b=-7, and c=−20c=-20 into the quadratic formula and solve for xx.

7±√(−7)2−4⋅(3⋅−20)2⋅37±(-7)2-4⋅(3⋅-20)2⋅3

Simplify.

Tap for more steps...

x=7±176x=7±176

The final answer is the combination of both solutions.

x=4,−53

garri49 [273]3 years ago
3 0

Answer:

you can either factorise or use tge formula method

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(a + 1)(a + 2) = 0 solve quadratic equation by factoring
Klio2033 [76]

Answer: a^2+3a+2

Step-by-step explanation:

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which you get a^2+3a+2

7 0
3 years ago
Help help help please
Archy [21]
 that makes the  equation of the line perpendicular to it to be -1 / (1/6) = -6 

the general equation in point slope form is 

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so here we have:-

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3 0
3 years ago
Solve for M: -11E=2M
katrin [286]

Answer:

\frac{-11E}{2} = M

Step-by-step explanation:

Divide each side by 2:

\frac{-11E}{2} = \frac{2M}{2}  \\\\frac{-11E}{2} = M

6 0
4 years ago
Read 2 more answers
What linear equation is represented by the table <br><br> 0 -2<br> 1 2<br> 2 6<br> 3 10
nydimaria [60]
I think it is y=4x-2.
8 0
3 years ago
in the factory 25 men working 26 hour can produce 1300 radios . how manny hours must the same group of men work to produce 450 r
Vera_Pavlovna [14]

Answer:

9 hours

Step-by-step explanation:

Since the group of men remains the same, number of hours is proportional to number of radios.

1300/26 = 450/h

h = 26 * 450 / 1300 = 9 hours

6 0
3 years ago
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