Answer:
I think this is a function because each input has exactly one output.
Answer:
no because each input has more than 1 output I think...
Step-by-step explanation:
3x + 1 = 27
3(7) + 1 = 27
21 + 1 = 27
22 ≠ 27
FALSE
3(x + 1) = 24
3(7 + 1) = 24
3(8) = 24
24 = 24
TRUE
2x + 3(x - 4) = 21
2(7) + 3(7 - 4) = 21
14 + 3(3) = 21
14 + 9 = 21
23 ≠ 21
FALSE
x^2 - 8 = 42
7^2 - 8 = 42
49 - 8 = 42
41 ≠ 42
FALSE
Hope This Helped! Good Luck!
Answer:
4
Step-by-step explanation:
4-0.25*10+0.5*5=4-2.5+2.5=4
75
B.
–35
C.
–45
D.
15
Simplify the expression. 2/3 x [15 x 5 + (-24)] + (-18)
A.
52
B.
48
C.
22
D.
16
O -15
08
a
08
O 15
Answer:
A. -15
Step-by-step explanation:
First, ignore the negative sign and simply pretend the problem is asking for the product of 3 and 5.
When multiplying a by b, it's essentially the same as adding a to itself b times. Here, we multiply 3 by 5, so add 3 to itself 5 times: 3 + 3 + 3 + 3 + 3 = 15.
Now, look at the negative sign. When we multiply two numbers of different signs (one is negative and one is positive), the result is always negative. However, when we multiply two numbers of the same sign (either both positive or both negative), the result is always positive.
Here, we have one negative and one positive, which means the result should be negative. So, add a negative sign to 15 to get -15.
The answer is A.
Answer:
-15
Step-by-step explanation:
Product of a and b is:
a × b
Similarly, the product of -3 and 5 is:
-3 × 5
-15