2 years ago

Given that -15 is a root of x² +mx +45 = 0 find the constant m

Mathematics

1 answer:

o-na [289]2 years ago

5 0

Answer:

m = 18

Step-by-step explanation:

Given :

=> -15 is a root of the polynomial

=> It is a zero to the solution.

Process :

Substitute -15 in place of x.

=> (-15)² + (-15)m + 45 = 0

=> 225 + 45 - 15m = 0

=> 15m = 270

=> m = 270/15

=> m = 18

You might be interested in

A team has 50 jerseys .there are 35 medium sized jerseys. what us the percentage of medium jerseys

gladu [14]

35/50 multiplied by 100=70%

7 0

3 years ago

Read 2 more answers

Reciprocal of 12 by 15 is

romanna [79]

the reciprocal is 15 by 12

5 0

3 years ago

Which property does the equation illustrate?<br> 0 +-b= -b?

konstantin123 [22]

Answer:

The property the equation illustrates would be the zero property of addition.

Step-by-step explanation:

The additive property of zero states that when you have any number and add zero to it, your answer will always equal the original number.

8 0

3 years ago

Whoever gets this correct gets brain, 5 stars and a thanks! An explanation of it would be amazing! Tysm!

Jet001 [13]

So the correct ratio is 4:5
The only one that doesn’t mean the same as that is C.

7 0

3 years ago

An art gallery wants to display 4 pieces of art in the front window. If there are 8 pieces to choose from, how many distinct dis

Viktor [21]

Answer:

D-70

Step-by-step explanation:

It is a combination C(8,4)

5 0

2 years ago

Given that -15 is a root of x² +mx +45 = 0 find the constant m​

Given that -15 is a root of x² +mx +45 = 0 find the constant m