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Kipish [7]
1 year ago
14

Evaluate the expression, when x = 3.2x + 4(x - 2)a910ObocOd118

Mathematics
1 answer:
love history [14]1 year ago
4 0

The initial expression is:

2x + 4(x - 2)

Replacing x by 3, we get:

2(3) + 4(3 - 2)

6 + 4(1)

6 + 4

10

The value of the expression is 10

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X²- 12x + a = (x-b)² <br>Find the Value of a and value of b <br>​
maxonik [38]

Answer:

a = 36 , b = 6

Step-by-step explanation:

expand the right side using FOIL and compare coefficients with like terms on left side.

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b = 6

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5 0
2 years ago
Find the circumference and area <br> r = 5 m
stira [4]

Step-by-step explanation:

Let's get our relevant base equations listed out:

d = 2r

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c = πd

Thus, d=2*5m  = 10m, c=π*10m=10π m, and area = 25m²*π

Feel free to ask further questions!

4 0
3 years ago
5. When y varies directly with x, the value of y = -2 when x = 4. What is the value of y when x = 8?
zmey [24]

Answer:

-4

Step-by-step explanation:

if y = -2 then x = 4

what is y when x = 8

\frac{ - 2}{x}  =  \frac{4}{8}  \\  - 16 = 4x \\ x =  - 4

7 0
2 years ago
Y = f(x) + 3<br> describe the functions that take place
hram777 [196]

Answer:

A function can be reflected about an axis by multiplying by negative one. To reflect about the y-axis, multiply every x by -1 to get -x. To reflect about the x-axis, multiply f(x) by -1 to get -f(x).

Step-by-step explanation:

8 0
3 years ago
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Paha777 [63]

Answer:

-15 and 3

Step-by-step explanation:

8 0
3 years ago
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