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3 years ago

Can you help me and describe how it’s done please 2ab+3ac+6ac+4ab+ab=

1 answer:

8 0

$2ab + 3ac + 6ac + 4ab + ab \\ 7ab + 9ac$
You combine like terms, if the variables are the same the just add the numbers in front of them.

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Write a quadratic function for each graph described.

user100 [1]

Answer:

$y=2x^2-\frac{4}{3}x-\frac{10}{3}$

Step-by-step explanation:

we know that

The roots of the quadratic function (x-intercepts) are

x=-1 and x=5/3

we can write the equation of the parabola as

$y=a(x+1)(x-\frac{5}{3})$

where

a is a coefficient

Remember that

The parabola pass through the point (5,40)

substitute the value of x and the value of y of the ordered pair in the quadratic equation and solve for a

x=5, y=40

$40=a(5+1)(5-\frac{5}{3})$

$40=a(6)(\frac{10}{3})$

$40=20a\\a=2$

substitute

$y=2(x+1)(x-\frac{5}{3})$

apply distributive property

$y=2(x^2-\frac{5}{3}x+x-\frac{5}{3})\\\\y=2(x^2-\frac{2}{3}x-\frac{5}{3})\\\\y=2x^2-\frac{4}{3}x-\frac{10}{3}$

see the attached figure to better understand the problem

6 0

3 years ago

The Mackinac Bridge in Michigan is the third-longest suspension bridge in the United States.

likoan [24]

A: 60.66 m
b:8.04 km

6 0

2 years ago

Read 2 more answers

When diving an algebraic fraction do you always have to flip one of the fractions when multipling?

bearhunter [10]

Yes its stay.flip.flip it

4 0

3 years ago

What is 3x+4= -15? How would you get a negative number?

bulgar [2K]

Answer:

$x=-\frac{19}{3}$

Step-by-step explanation:

$3x+4=-15$

$3x+4-4=-15-4$

$3x=-19$

$\frac{3x}{3}=\frac{-19}{3}$

$x=-\frac{19}{3}$

5 0

3 years ago

If 12 cans of dog food cost $9.50, how much would 6 cans cost?

Serjik [45]

Answer:

I would cost $4.75

Step-by-step explanation:

9.50 / 2

4.75

Hope it´s helpfull :)

4 0

3 years ago

Read 2 more answers