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3 years ago

In the xy-plane, the point (4,4) lies on the graph of the function f(x)-2x2-bx + 12. What is the value of b?

Mathematics

1 answer:

nikdorinn [45]3 years ago

5 0

Simply substitute the point into the given equation; as there is one variable, you only need one point and so one is given. When done so, you shall get b=4

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Simplify [0.009÷0.004]-1/2

pantera1 [17]

Answer:

1.75

Step-by-step explanation:

0.009÷0.004- $\frac{1}{2}$ =

2.25-0.5=

1.75

4 0

3 years ago

A spinner is divided into 6 equal sections and colored as shown. The spinner is spun 60 times, and the results are recorded in t

Delicious77 [7]

Exp prob (red) = 24 / 60 = 4 / 10 = 2/5

Theoretical prob (red) = (1/2)

Exp prob (blue) = 14 / 60 = 7 / 30

Theoretical prob (blue) = 1/6

Exp prob ( yellow) = 22/ 60 = 11/30

Theoretical prob ( yellow) = 2/6 = 1/3

7 0

2 years ago

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Pamela's age is three times jiri's age. the sum of their ages is 88 . what is jiri's age?

Andre45 [30]

Jiri is 22 years old and Pamela is 66

22•3=66
22+66=88

5 0

3 years ago

Joe’s balance in his checking account at the beginning of the month was $132. At the end of the month, it was 15.3% higher. What

Contact [7]

The answer would be $152.20 because 132*1.153=152.196, rounded to $152.20.

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3 years ago

What is the product of 2x + y and 5x – y + 3?

hoa [83]

Answer: The required product is $10x^2-y^2+3xy+6x+3y.$

Step-by-step explanation: We are to find the product f the following two algebraic expressions:

$E_1=2x+y,\\\\E_2=5x-y+3.$

To find the product of the above two expressions, we must multiply each term of the first expression with each term of the second expression.

The multiplication is as follows:

$M\\\\=E_1 \times E_2\\\\=(2x+y)\times(5x-y+3)\\\\=10x^2-2xy+6x+5xy-y^2+3y\\\\=10x^2-y^2+3xy+6x+3y.$

Thus, the required product is $10x^2-y^2+3xy+6x+3y.$

7 0

3 years ago

Read 2 more answers