Answer:
-9.661
Step-by-step explanation:
In the given equation, a and b are negative. The values of a and b are given. If you insert the values into the given formula, the values become negative because of "-" in front of the a and b values.
-a + (-b) = -6.05 + (-3.611)
Because the second value is negative, the plus sign references to adding BOTH negative values together so it is just the same as saying:
-6.05 - 3.611
This gives you -9.661
Hope this helps!
Equation for length:
L=3w-35
By inputting this into the equation to find the perimeter we get:
2(3w-35)+2w=190
Distribute
6w-70+2w=190
Add like terms
8w=260
Divide both sides by 8
w=32.5
The width is 32.5cm
To find the length input w into the equation for length
L=3(32.5)-35
L=97.5-35
L=62.5
The length is 62.5cm
Check that the solution is correct by inputting the solutions to the perimeter equation
2L+2w=190
2(62.5)+2(32.5)=190
125+65=190
190=190
I hope this helps :)
Answer:
The answers are
x
=
−
2
and
x
=
−
4
.
Step-by-step explanation:
To start, the quadratic formula is
x
=
−
b
±
√
b
2
−
4
a
c
2
a
In this problem,
a
=
1
(as the
x
2
term has no coefficient),
b
=
6
, and
c
=
8
.
Plug those values into the quadratic equation to get:
x
=
−
6
±
√
6
2
−
4
(
1
)
(
8
)
2
(
1
)
Multiply
2
⋅
1
on the bottom of the fraction:
x
=
−
6
±
√
6
2
−
4
(
1
)
(
8
)
2
Square
6
and multiply
4
⋅
1
⋅
8
within the square root:
x
=
−
6
±
√
36
−
32
2
Subtract
36
−
32
inside the root:
x
=
−
6
±
√
4
2
Solve for
√
4
x
=
−
6
±
2
2
If the
±
is positive, you get
x
=
−
6
+
2
2
, which simplifies to
x
=
−
4
2
, or
−
2
If the
±
is negative, you get
x
=
−
6
−
2
2
, which simplifies to
x
=
−
8
2
, or
−
4
Hi I did a plug and play because I don’t know how else to do it.
So I started adding numbers till the tarts equal 20 and then the cherries in the tarts equals 89.
11tarts times* 5cherries is 55 black cherries
7tarts times * 4 cherries is 28 red cherries
2tarts Times* 3 cherries is 6 white cherries
20 tarts and 89 cherries
So with the information☝️in the constraints that makes the statement true above... There are 9 more black tarts on tray than white.