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Lubov Fominskaja [6]
3 years ago
5

Evaluate a + b for a = 2 and b = 3.

Mathematics
1 answer:
Misha Larkins [42]3 years ago
3 0

For this case we have the following expression:

a + b

We must evaluate the expression to:

a = 2\\b = 3

Substituting the values in the expression we have:

2 + 3

Equal signs are added and the same sign is placed.

So:

2 + 3 = 5

Finally, the value of the expression is 5.

Answer:

a + b = 5fora = 2 andb = 3

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When y increases x increases
aniked [119]

Answer:

It happens only when they are inversely proportional to eachother.

X = 1/y

6 0
3 years ago
The square of Mark's age 3 years ago is 6 times the age he will be in 9 years. What is his age now?
Lubov Fominskaja [6]

Answer:

Age= 15

Step-by-step explanation:

Let a be for age at the moment

(a-3)^2 =6(a+9)

a^2-6a+9=6a+54

a^2-12a-45

(a-15)(a+3)

a=15 or a=-3

Age cannot be negative (-)

Therefore

Age =15

3 0
3 years ago
Read 2 more answers
A water balloon is 5 feet above the ground when Sally launches it into the air. Use the quadratic equation 0 = -t2 + 4t + 5 to f
Alborosie

Answer:

2-sqrt14/2, 2+sqrt13/2.

Step-by-step explanation:

What you do is you have to do the quadratic equation like it says in the problem.

x=  −b± sqrtb^2 −4ac /2a .

a=-2, b=4, c=5.

x=-4±sqrt(4)^2-4(-2)(5)/2(-2).

x=-4±sqrt16+40/-4.

x=-4±2sqrt14/-2.

2-sqrt14/2, 2+sqrt13/2. is your answer once you have done everything.

​  

​

6 0
3 years ago
H divided (3+y) what is the answer need asp
Hunter-Best [27]

Answer:

H Divided by (3+y) is equivalent to H/(3+y)

Step-by-step explanation:

Hope This Helps!

6 0
2 years ago
A bag contains six real diamonds and five fake diamonds. If six diamonds are picked from the bag at random what is the probabili
NARA [144]

Answer:

((6 choose 4) * (5 choose 2) + (6 choose 5) * (5 choose 1) + (6 choose 6) * (5 choose 0)) / (11 choose 6) = 181/462 = 0.3918

5 0
3 years ago
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