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djverab [1.8K]
3 years ago
5

How many cans of paint does it take to paint the washington monument

Mathematics
1 answer:
Verizon [17]3 years ago
5 0
How much paint can that can hold
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Make a table of ordered pairs for the equation.
soldier1979 [14.2K]
X y
-2 -3
-1 -1
0 1
1 3
2 5

i can’t graph it, but i hope this helps
4 0
3 years ago
Use the discriminant to determine the number of solutions to the quadratic equation 3x^2+5x=-1
kari74 [83]

Answer:

Two real distinct solutions

Step-by-step explanation:

Hi there!

<u>Background of the Discriminant</u>

The discriminant b^2-4ac applies to quadratic equations when they are organised in standard form: ax^2+bx+c=0.

All quadratic equations can be solved with the quadratic formula: x = \frac{{ - b \pm \sqrt {b^2 - 4ac} }}{{2a}}}.

When b^2-4ac is positive, it is possible to take its square root and end up with two real, distinct values of x.

When it is zero, we won't be taking the square root at all and we will end up with two real solutions that are equal, or just one solution.

When it is negative, it is impossible to take the square root and we will end up with two non-real solutions.

<u>Solving the Problem</u>

<u />3x^2+5x=-1<u />

We're given the above equation. It hasn't been organised completely in ax^2+bx+c=0, but we can change that by adding 1 to both sides to make the right side equal to 0:

3x^2+5x+1=0<u />

Now that we can identify the values of a, b and c, we can plug them into the discriminant:

D=b^2-4ac\\D=(5)^2-4(3)(1)\\D=25-4(3)(1)\\D=25-12\\D=13

Therefore, because the discriminant is positive, the equation has two real, distinct solutions.

I hope this helps!

4 0
3 years ago
Karen has gallons of apple juice and gallons of orange juice in her refrigerator. How many gallons of juice does Karen have alto
3241004551 [841]
E. All of the above
Because there are gallons
7 0
3 years ago
Lydia bought a shirt at 20% off its retail price of $40. She paid 5% tax on the price after the discount. How much did Lydia pay
lys-0071 [83]
$33.60. 20% of 40 is 8. 40 minus 8 is 32. 5% of 32 is 1.60, with a sum of 33.60, the total for the shirt.
7 0
3 years ago
25/5 as a whole number
OLEGan [10]
25/5 would be 5 as a whole number
4 0
3 years ago
Read 2 more answers
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