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Cerrena [4.2K]
3 years ago
9

Write the equation 0.3x^2+5x-7=0 in standard form and then choose the value of “b”

Mathematics
1 answer:
kotegsom [21]3 years ago
6 0

Answer:

b = 5

Step-by-step explanation:

The given equation is :

0.3x^2+5x-7=0 .......(1)

It is in the form of quadratic equation. The general form of a quadratic equation is as follows :

ax^2+bx+c=0 .....(2)

Comparing equations (1) and (2), we get :

a = 0.3, b = 5 and c = -7

Hence, the value of b is equal to 5.

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Nataly_w [17]
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3 years ago
A polynomial has zeros x=0, x= -3, X = 4. What are some possible factored equations for this fourth degree polynomial.
kati45 [8]

Answer:

x^{2} (x + 3)(x - 4)

Step-by-step explanation:

You can multiply this out to get the full equations.

It's to the 4th degree so the x on the outside has to be squared to add the fourth degree.

To get other zeros:

x + 3 = 0

x = -3

x - 4 = 0

x = 4

Hope this helped. :0)

5 0
3 years ago
Find all solutions by factoring.<br> c? + 13c + 40 = 0
Karolina [17]

Answer: c = -5, -8

Step-by-step explanation:

c^2 +13c+40=0

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3 0
3 years ago
Horizontal and parallel lines c and d are cut by transversal p. At the intersection of lines c and p, the uppercase left angle i
konstantin123 [22]

Answer:

the answer is the option C

m∠2 = 99° and m∠4 = 99°

Step-by-step explanation:

edg 2020

5 0
3 years ago
What Is the solution to the system of equations? Y=-3x-2<br> 5x+2y=15
snow_tiger [21]

Answer:

x,y=-19,55

Step-by-step explanation:

plug in y.

5x+2(-3x-2)=15

5x-6x-4=15

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x=-19.

Plug in.

y=-3(-19)-2

y=55

correct is B.

Hope this helps :D

3 0
3 years ago
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