1 year ago

Evaluate the expression: -a^2 + c(a-c) - n^2 a= -3 c= -2 n= 3

1 answer:

7 0

Answer: -a^2+c\left(a-c\right)-n^2a=3\quad :\quad c=-\frac{-a+\sqrt{-3a^2-4an^2-12}}{2},\:c=-\frac{-a-\sqrt{-3a^2-4an^2-12}}{2}

Step-by-step explanation: YW! plese mark branlest!

You might be interested in

HELP PLEASE!! WHAT IS 9+3 8/2

BabaBlast [244]

8/2= 4
4+3=7
9+7=16

16

3 0

2 years ago

Read 2 more answers

What is the correct answer for 5/8+2/5 in fractions and fractions

bezimeni [28]

The answer is 1 1/40 as a mixed fraction! An improper fraction would be 41/40! Hope this picture helps!

7 0

3 years ago

a cookie recipe needs 1 1/3 cups of flour to make 1/2 batch of cookies. How much flour is needed to make 1 batch of cookies?

Irina-Kira [14]

2 2/3cups of flour for a full batch of cookies

3 0

3 years ago

Read 2 more answers

Find the area of the composite shape

Alexxandr [17]

Answer:

$13.735$ $ft^{2}$

Step-by-step explanation:

Area of a circle.

$A=\pi r^{2}$

$r=d/2\\r=8/2\\r=4$

$A=\pi \times 4^{2}$

$A=16\pi$

$A \approx 50.2654824574$

Area of a square.

$A=s^{2}$

$A=8^{2}$

$A=64$

Subtract the area of the square with the area of the circle.

$64-50.2654824574$

$= 13.7345175426$

I hope it helps.

Brainliest much appreciated.

8 0

2 years ago

4/9x + 1/5x =58 need help solving this

iogann1982 [59]

Answer:

x=90

Step-by-step explanation:

First, it would help to make it so that the x's are not next to fractions. To do this, you can multiply all terms in the equation by 45. 45 is the closest common factor of 9 and 5, the denominators of the fractions. The answer would be;

20x+9x=2610

Then solve.

29x=2610

x=90

6 0

3 years ago