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-BARSIC- [3]
3 years ago
12

If x + y = 5 and x - y = 3, then x^2 - y^2 = ?

Mathematics
1 answer:
HACTEHA [7]3 years ago
5 0

Answer:

B) 15

Step-by-step explanation:

Using basic logic we find that x = 4 and y = 1

4^2 = 16

1^2 = 1

16 - 1 = 15

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Trying to solve a exponential function question. Evaluate the function when t=5.
Gemiola [76]
If t=5 then all you do is plug that into the function:
h(t)=175(1028)5
You would start by multiplying 1028 by 5 which leaves you with 5140, now plug that into the function.
h(t)=175(5140)
multiply 175 and 5140
h(t)=899500
8 0
3 years ago
What is the percentage chance of a solution 150 g active ingredient in a total of 1000 mL of solution
Andrej [43]

Answer:6.6666666667

Step-by-step explanation:just divided it

4 0
4 years ago
What is the smaller x and what is the larger x?
kiruha [24]

both are 2

check

2²+3(2)-10=0

4+6-10=0

10-10=0

0=0

6 0
3 years ago
What is 4y when x -3
lord [1]

Answer:

4y-x-3  = 0

Step-by-step explanation:

 Slope = 0.500/2.000 = 0.250

 x-intercept = 3/-1 = -3.00000

 y-intercept = 3/4 = 0.75000

4 0
3 years ago
A tin of biscuits contains shortbread and choc-chip biscuits in the ratio 2:3 . The tin contains 80 biscuits. How many short-bre
Aleksandr [31]

Answer:

32

Step-by-step explanation:

There are 80 biscuits inside the tin.

Also, they said that those biscuits are in the ratio

Short bread    :      Choc - chip

          2          :        3

Altogether there are 5 shares ( 2 + 3)

And now you can divide 80 by 5 to find how many biscuits contain per a share.

80 ÷ 5 = 16

In the question, they asked us to to find the number of short biscuits inside the tin.

Let us find that.

There are 2 shares for short bread biscuits.

So,

Number of short biscuits ⇒ 2 × 16

                                         ⇒ 32

Hope this helps you :-)

5 0
3 years ago
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