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natulia [17]
3 years ago
8

Pls help me with this math 6(2b-4) when b=5?

Mathematics
2 answers:
castortr0y [4]3 years ago
7 0

Answer:

The answer is 36

Step-by-step explanation:

I got this by Substituting the value of the variable into the equation and simplifying.

skad [1K]3 years ago
4 0

Answer:

36

Step-by-step explanation:

6(2b - 4)

~Substitute

6(2(5) - 4)

~Simplify

6(10 - 4)

~Subtract in parenthesis

6(6)

~Multiply

36

Best of Luck!

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PLLLLLSSSS Heeeellppp ill mark brainliest I promisseeeeeeee plsssss
WARRIOR [948]

Answer:

2\,(x-1)^2=4

which is the first option in the list of possible answers.

Step-by-step explanation:

Recall that the minimum of a parabola generated by a quadratic expression is at the vertex of the parabola, and the formula for the vertex of a quadratic of the general form:

y=ax^2+bx+c

is at   x_{vertex}=\frac{-b}{2\,a}

For our case, where a=2\,\,, b=-4\,\,,\,\,and \,\,c=-2  we have:

x_{vertex}=\frac{-b}{2\,a}\\x_{vertex}=\frac{4}{2\,*\,2}\\x_{vertex}=1

And when x = 1, the value of "y" is:

y(x)=2x^2-4x-2\\y(1)=2(1)^2-4(1)-2\\y(1)=2-6\\y(1)=-4\\y_{vertex}=-4

Recall now that we can write the quadratic in what is called: "vertex form" using the coordinates (x_{vertex},y_{vertex)of the vertex as follows:

y-y_{vertex}=a\,(x-x_{vertex})^2

Then, for our case:

y-(-4)=2\,(x-1)^2\\y=2\,(x-1)^2-4

Then, for the quadratic equal to zero as requested in the problem, we have:

y=2\,(x-1)^2-4=0\\2\,(x-1)^2-4=0\\2\,(x-1)^2=4

5 0
3 years ago
A ray cannot be perpendicular to a line. true or false? no guesses please
galina1969 [7]

Answer:

TRUE

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A survey revealed that 56% of the students at North Valley high school are involved with in a sports team. The survey also showe
oksano4ka [1.4K]

Answer:

The probability that a student who is involved in a sports team also participated in the prom dance = 0.1344

Step-by-step explanation:

56% of the students are involved in a sport team

56% = 0.56

According to the question, it is stated that 24% of the students at the school that are involved in a sports team also participated in the prom dance.

24% = 0.24

This means that we are going to find 24% of the original 56%, since 24% of them also participated in the prom dance.

The probability that a student who is involved in a sports team also participated in the prom dance = 0.24 * 0.56

The probability that a student who is involved in a sports team also participated in the prom dance = 0.1344

5 0
2 years ago
I need help on this I will give brainlist help it will mean a lot this is my last math problem help me!​
deff fn [24]

Answer:answer is b

Step-by-step explanation: Just makes since

6 0
3 years ago
Evaluate 4y-3 for y=1
Neko [114]

Answer:

1

Step-by-step explanation:

4(1)-3=?

4-3=1

8 0
3 years ago
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