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3 years ago

7

4(2x+1)-(-2+8x) : use the distributive property and combining like terms to simplify

1 answer:

Y_Kistochka [10]3 years ago

5 0

I think the answer is: -64x^2-16x+8

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What is the product of all constants $k$ such that the quadratic $x^2 + kx +15$ can be factored in the form $(x+a)(x+b)$, where

Setler79 [48]

Answer:

$k=-16,k=-8,k=8,k=16$

Step-by-step explanation:

We are given quadratic equations as

$x^2+kx+15$

and it can be factored as

$=(x+a)(x+b)$

now, we can multiply factor term

$(x+a)(x+b)=x^2+(a+b)x+ab$

now, we can compare

$x^2+(a+b)x+ab=x^2+kx+15$

so, we get

$k=a+b$

$ab=15$

we are given that

'a' and 'b' are integers

so, we can find all possible factors

$15=(-1\times -15),(1\times 15)$

$15=(-3\times -5),(3\times 5)$

so, we can find k

At $(-1\times -15)$ :

$k=a+b$

we can plug values

$k=-1-15$

$k=-16$

At $(1\times 15)$ :

$k=a+b$

we can plug values

$k=1+15$

$k=16$

At $(-3\times -5)$ :

$k=a+b$

we can plug values

$k=-3-5$

$k=-8$

At $(3\times 5)$ :

$k=a+b$

we can plug values

$k=3+5$

$k=8$

So, values of k are

$k=-16,k=-8,k=8,k=16$

6 0

3 years ago

Urgent please hell..

vovikov84 [41]

8 x (3^2/4^2)
=4.5
........................

6 0

2 years ago

Write the equation in point slope form that describes the line given by the two points (2,1) and (2,-2) are on a line. then conv

Aleonysh [2.5K]

Answer: There is no way we can find the point slope form of two points together since only one point is needed for point slope.

Step-by-step explanation: However the slope of these two points is undefined which means not even a slope-intercept equation would be possible for these two points.

Hope this helps!

5 0

3 years ago

Read 2 more answers

Help me please it’s due

Temka [501]

Answer:

13.82 in.

Step-by-step explanation:

To find the circumference of a circle, you multiply the diameter by pi ( $\pi$ ):

$(4.4)(\pi )=13.82301$

Rounded to the nearest tenth, 13.82301 is 13.82. Therefore, 13.82 is the answer.

I hope this helps!

8 0

2 years ago

What is the product of 5/8 and 3/4??

Triss [41]

Answer:

15/32

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers