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2 years ago

What is one factor of 20x2 + 6x − 8

Mathematics

2 answers:

Furkat [3]2 years ago

8 0

You can factor out a 2 from all. Idk if that helps but here ya go. 10x+3x-4

neonofarm [45]2 years ago

6 0

You can divide a factor of 2 from all terms:
2(10x² +3x -4)

You can look for factors of 10×(-4) = -40 that add to 3.
-40 = 40×-1 = 20×-2 = 10×-4 = 8×-5 . . . . . these last ones add to 3

Now, you know the factorization is
2(10x +8)(10x -5)/10 = 2(5x +4)(2x -1)

One factor of 20x² +6x -8 is any of
2
5x +4
2x -1
or any product of 2 of these.

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Find the range for the function: y=x-7 {-3,0,2,5}

trasher [3.6K]

Answer:

Range is : { -10, -7, -5, -2 }

Step-by-step explanation:

Given:

The function is given as:

$y=x-7$

The domain of the function = { -3, 0, 2, 5 }

A function's input is called its domain and a function's output is called its range.

The range depends on the domain values. So, the values of 'y' are the values of range and the values of 'x' are the values of domain.

Here, the domain is given as:

Domain = { -3, 0, 2, 5 }

We need to find the values of 'y' for each value of 'x' taken from the domain set.

Plug in $x=-3$ . This gives,

$y=-3-7=-10$

Plug in $x=0$ . This gives,

$y=0-7=-7$

Plug in $x=2$ . This gives,

$y=2-7=-5$

Plug in $x=-5$ . This gives,

$y=5-7=-2$

Therefore, the set of all values of 'y' is the range.

Range is equal to { -10, -7, -5, -2 }.

8 0

3 years ago

Decide whether this situation is looking for the part, the percent, or the whole. 14 compact cars are 56% of the cars sold tha

bekas [8.4K]

Answer:percent

Step-by-step explanation: I don’t know

6 0

2 years ago

Read 2 more answers

The center of the circle is at (-2,-7) and its radius is 36.

Vanyuwa [196]

Standard form for circle with radius r and center (h,k) is
(x-h)^2+(y-k)^2=r^2

r=36
center at -2,-7
(x-(-2))^2+(y-(-7))^2=36^2
(x+2)^2+(y+7)^2=1296

firts option

6 0

2 years ago

pablo will rent a car for the weekend. he can choose one of two plans. the first plan has an initial fee of $55.96 with addition

sergeinik [125]

Answer:

200 miles

Step-by-step explanation:

63.96+(.08x)=55.96+(.12x). x=200. 63.96+(.08x200)=79.96. 55.96+(.12x200)= 79.96

7 0

2 years ago

Read 2 more answers

Please help ASAP. Thanks so much.

MAVERICK [17]

Answer:

B. 3

Step-by-step explanation:

To find the value of c, substitute the x and y values of the given point into x and y of the equation, then isolate c. Since that given point is (2,5), substitute 2 for x and 5 for y:

$(5) = -2(2)^2+8(2)-c\\5 = -2(4)+16-c\\5 = -8 + 16 - c \\5 = 8 -c\\-3 = -c\\c = 3$

Thus, c = 3.

5 0

2 years ago