3 years ago

Solve for A Exact (no rounding, no calculator needed) 0 = A^2 + 13A + 36

Mathematics

1 answer:

marysya [2.9K]3 years ago

3 0

Answer:

-4 or -9

Step-by-step explanation:

-a^2-13a-36=0

(-a-4)(a+9)=0

-a-4=0

a+9=0

a= -4, -9

You might be interested in

100 POINTS FOR BRAINLIEST! according to the image, whats the answer? Answer wisely for the full 100

lesantik [10]

Answer:

Step-by-step explanation:

To find the area of a semicircle the formula is

$\frac{\pi r^2}{2} \\=\frac{\pi 1^2}{2} \\=6.283m^2$

The square

$A=a^2=2^2=4m^2\\6.283+4=10.283m^2$

$A=wl=7*9=63m^2$ (rectangle)

$A=\frac{ab}{2} =\frac{6*4.5}{2} =13.5m^2\\63+13.5=76.5m^2$ (triangle)

5 0

4 years ago

Read 2 more answers

Drey makes $10 an hour plus $15 an hour for every hour of overtime. Overtime hours are any hours more than 40 hours for the week

blsea [12.9K]

490=10·40+15x

490=400+15x

90=15x

x=6

he worked a total of 46 hours

7 0

4 years ago

Matthew and Andrew leave an intersection at

cestrela7 [59]

d i believe so it might be d if not i’m sorry

3 0

3 years ago

Pls help me with question 1

ZanzabumX [31]

Answer:

well first put your name

8 0

3 years ago

Read 2 more answers

A car travels 14km in 25mins . Find out how far the car can travel in 5 hours if the speed remains the same ?

jekas [21]

<h3><u>Answer :- </u></h3>

168 km ...

<h3><u>Explanation :- </u></h3>

It is given that the car travels 14km in 25 minutes..

Now , assume that the distance the car travel in 5 hours be x..

Since 1 hour = 60 minutes..
5 hours = 300 minutes ..

• Thus , The two given statements are :-

14km -----------------> 25 minutes..
And, x km -------------> 300 minutes..

The distance travelled by car and the time taken by the car is directly proportional to each other....

$\frac{14}{25} = \frac{x}{300}$

$= x = 168km$

• Hence , Car can travel 168km in 5 hours ..

Hope this helps you :)

6 0

2 years ago