All categories

3 years ago

Which of the binomial below is a factor of this trinomial x^2-5x-14

Mathematics

2 answers:

erica [24]3 years ago

8 0

X^2-5x-14

x^2+2x-7x-14

x(x+2)-7(x+2)

(x-7)(x+2)

So (x-7) and (x+2) are factors of x^2-5x-14

PtichkaEL [24]3 years ago

7 0

Answer: x - 7

Step-by-step explanation:

You might be interested in

What is the runner’s average rate of change between the hours: 0.5 and 2? mph 1.5 and 2.5? mph Average Rate of Change

lana [24]

Answer:

0.5 and 2?

mph

1.5 and 2.5?

mph

Base on these results, the runner ran at a rate between 0.5 and 2 hours than between 1.5 and 2.5 hours.

slower

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Mr.hamrick bought 6 bags of candy each bag contained 8 candies. She put a equal number of candies in each of the 9 gift boxes. H

VARVARA [1.3K]

Answer:

0.333...

Step-by-step explanation:

6×8=48

48÷9=5.333...

(The ... means repeating)

3 0

2 years ago

. Consumer Awareness In 1986, the average cost of a new midsize four-door sedan was $9000. In 1991, the average cost was $12,000

eduard

Answer-

$\boxed{\boxed{y=9000(1.0592)^x}}$

And cost of a car in the year 2000 will be $20134.18

Solution-

Let's assume,

x = number of years after 1986

y = average cost of sedan in dollar

The exponential model that will model the scenario will be in the form of,

$y=ab^x$

where a and b are constants

As given that, in 1986 average cost of sedan was $9000 and in 1991 average cost of sedan was $12000

So, the points (0, 9000) and (5, 12000) will satisfy or lie on the exponential curve.

Putting (0, 9000) in the equation,

$\Rightarrow 9000=ab^0$

$\Rightarrow a\times 1=9000$

$\Rightarrow a=9000$

Now, the equation becomes $y=9000b^x$

Putting (5, 12000) in this equation,

$\Rightarrow 12000=9000b^5$

$\Rightarrow b^5=\dfrac{12000}{9000}$

$\Rightarrow b=\sqrt[5]{\dfrac{4}{3}}$

$\Rightarrow b=1.0592$

Putting the values,

$y=9000(1.0592)^x$

As we have to calculate the cost of sedan in 2000, so putting x=14(as 2000-1986=14),

$y=9000(1.0592)^{14}=20134.18$

Therefore, cost of a car in the year 2000 will be $20134.18

8 0

3 years ago

Peter is eating chicken wings.he can eat 4 wings a minute. He has already eaten 52. Write an equation to represent the total num

Nimfa-mama [501]

Answer:

Step-by-step explanation:

4 0

3 years ago

31g + 22 and -13g + 17.

maxonik [38]

The answer is 18g+39

4 0

3 years ago