Answer: Simplify the expression. (7 – c)(–1) –7 – c 7 + c 7 – c –7 + c. 2 ... 4.0/5. 7. nobillionaireNobley. Ambitious. 6.6K answers. 51.9M people helped .

Step-by-step explanation:

8 0

2 years ago

a quadratic equation has zero real number solutions. which could be the discriminant value associated with this equation? a. –5

Flauer [41]

Answer: Option 'a' is correct.

Step-by-step explanation:

As we know about the discriminant value i.e.

if we have given a quadratic equation :

$ax^2+bx+c=0$

then,

discriminant value will be

$b^2-4ac$

There are 3 properties regarding discriminant value as follows:

$1)b^2-4ac>0\\\\means,\\\\\text{ there exists real zeros}\\\\2)b^2-4ac=0\\\\means,\\\\\text{ there exists equal zeroes}\\\\3)b^2-4ac$

So, here we need a zero real number solutions i.e. there does not exists any real number.

So,

$b^2-4ac=-5$

Hence, Option'a' is correct.

5 0

3 years ago

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what is the ratio of the number of black keys to the total number of keys on the keyboard, if the same pattern of keys I continu

OLga [1]

Answer:

5 : 7 i guess

Step-by-step explanation:

6 0

2 years ago

C(1)=6<br> c(n)=c(n-1)-16<br> Find the 3rd term in the sequence

sveticcg [70]

C(1)=6
c(2)=c(2-1)-16=c(1)-16=6-16=-10
c(3)=c(3-1)-16=c(2)-16=-10-16=-26

8 0

3 years ago

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