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VLD [36.1K]
3 years ago
15

Exercise 4.2Fill in the missing numbers.12× 30= (12× ____ ) × 10 = ____​

Mathematics
1 answer:
tatiyna3 years ago
6 0

Step-by-step explanation:

12×30= (12 × 3) ×10 = 360

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Consider the function f(x)=-2x+5 what is f(5) enter your answer in the box
Oliga [24]

The value of f(5) is f(5)=-5

Step-by-step explanation:

The function is f(x)=-2x+5

To find f(5) substitute x=5 in f(x)=-2x+5

f(5)=-2(5)+5

Multiplying the terms, we get,

f(5)=-10+5

Adding the terms, we get,

f(5)=-5

Thus, the value of f(5) is f(5)=-5

8 0
4 years ago
3x²-9x+1+0 Find the discriminant
Sindrei [870]

Answer:

\boxed{D = 69}

Step-by-step explanation:

The given quadratic equation is:

3x^2-9x+1 = 0

Comparing it with the standard form of Quadratic Equation ax^2+bx+c = 0 , we get:

a = 3, b = -9 and c = 1

Discriminant = b² - 4ac

D = (-9)²-4(3)(1)

D = 81 - 12

D = 69

3 0
3 years ago
39-53 this is very important for my grades
Lisa [10]
Use photomath , its easier it tells you the steps
7 0
4 years ago
Read 2 more answers
Ten times the sum of half a number x and 8 is 12.
Diano4ka-milaya [45]

BREAKDOWN

10 times: 10 ×

The sum of: ( ) + ( )

which would be : 10 × ( ) + ( )

half a number: 10 × ( X/2 ) + ( )

and 8: 10 × ( X/2 ) + ( 8 )

is 12 : 10 × ( X/2 + 8 ) = 12

xxxxxxxxxxxxxxxxxxx

SIMPLIFICATION

Multiply ten: 10 X (X/2 + 8) = 12

which equals to: 5x + 80 = 12

bring the like terms together: 5x = 80 - 12

Equals: 5x = 78

Find out X:. x = 78/5

FINAL ANSWER:. X = 15.9

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6 0
4 years ago
Enjoy the points :D eeeeeeeeeeeeee
balandron [24]
The answer is 4/8 because half of 16 is 8 and half of 8 is 4, therefore they are equivalent
3 0
3 years ago
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