Answer:
A.
Step-by-step explanation:
you have to find the discriminant
b²-4ac for each equation
if discriminant < 0 no real solutions because will be negative under the squareroot whhan you try to find the roots
if discriminant = 0 there is only one solution
if discriminant > 0 two real solutions
for your given problems
A. discriminant =(-2)²-4*2*15 will be negative
-1 goes on the number that is -1.
1.75 goes on the 3rd line in between 1 and 2.
-2 goes on the number -2.
-2 1/2 on the 2nd line after 2.
-5/2 or -2 1/2 goes on the 2 line before -2.
And 9/4 or 2 1/4 goes on goes on the 1st line after 2.
Hope this helps!! :)
The system of equations that Sam can use is given by:
A 13b + 4t =327.50, 6b + 2t = 142.96
<h3>What is a system of equations?</h3>
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the variables are:
- Variable b: Cost of a bush.
- Variable t: Cost of a tree.
The first order was for 13 bushes and 4 trees, and totaled $327.50, hence:
13b + 4t = 327.50.
The second order was for 6 bushes and 2 trees, and totaled $142.96, hence:
6b + 2t = 142.96.
Which means that option A is correct.
More can be learned about a system of equations at brainly.com/question/24342899
5/17 x 3/8 (a dot in sky means multiplication if you didn't know
lets break it down:
5 x 3=15
and
17 x 8=136
so the answer would be 15/136
Hope this helps
$10- $6.98= $3.02 is your change
