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coldgirl [10]
3 years ago
14

4+√5 /4-√5 +4-√5/4+√5

Mathematics
1 answer:
jek_recluse [69]3 years ago
6 0

Answer: 8

Step-by-step explanation: since two opposites add up to zero, remove them from the expression. This simplifies to 4 + 4 which equals 8.

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Which ordered pair is the solution to the system of equations?
brilliants [131]
X+y=-1
3x-y=21
add them equations

x+y=-1
<u>3x-y=21 +</u>
4x+0y=20

4x=20
divide by 4
x=5

x+y=-1
5+y=-1
minus 5 both sides
y=-6

(x,y)
(5,-6)

D is answer
3 0
3 years ago
A school is looking to cater an event by having a food truck. Food truck A will charge $1.50 for each item sold and a fee of $50
Ganezh [65]

Answer:

40 items

Step-by-step explanation:

I used the equation 1.5x+50=2.75x to find the answer. If the school were to buy 40 items from either truck, they would both amount to 110.

4 0
3 years ago
Adam uses coconut milk for the dessert.
VARVARA [1.3K]
Since we are already given the formula and all the information, the only thing that we have to do is input all the values and simplify until we get an answer. In addition, we must also note that the radius is 4 (because the diameter is equal to twice the radius, meaning that if the diameter is 8, the radius is 4). Using the formula and information given, we get:

Volume = 3 * (4)² * 12

Which simplifies to:

Volume = 3 * 16 * 12
Volume = 576

Now, we need to know the units. Since this is a 3d shape, and the unit for the lengths of the sides are centimeters, this answer will be in centimeters cubed. That means our answer is 576 centimeters cubed. 
4 0
3 years ago
Read 2 more answers
Express 2 1/2kg as grams
enyata [817]
The answer is 2 1/2kg = <span>2500 g</span>
8 0
3 years ago
:
Gre4nikov [31]

Answer:

$6.75

Step-by-step explanation:

15% of 45 = $6.75

5 0
3 years ago
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