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3 years ago

Carter is solving this expression by factoring: 5x ^ 2 + 5x - 280 Which of the following represents the correct factors?

Mathematics

1 answer:

Alex17521 [72]3 years ago

8 0

This is the working but there are 2 other methods that can help you arrive to the same answer

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Write a rational inequality with the solution: (-2,-1)U(1, oo)

serg [7]

Answer:

$\displaystyle \frac{x^2+3x+2}{1-x}$

Step-by-step explanation:

<u>Rational Inequality</u>

We are given the solution of rational inequality:

(-2,-1) U (1,∞)

The first set suggests a limited zone than can be obtained by a quadratic equation of the form:

$(x-a)(x-b)$

Where a and b are the roots of the equation, which coincide with the endpoints of the interval. Thus, to get the interval, we can use:

$(x+2)(x+1)$

Operating:

$x^2+3x+2$

The second set is an open infinite interval, that can be modeled as a third binomial that changes signs in x=1 and is in the denominator, so x=1 is not included.

Thus, one possible inequality is:

$\mathbf{\displaystyle \frac{x^2+3x+2}{1-x}$

4 0

3 years ago

Interpret the solution. AND PLEASE SHOW ALL WORK PLEASE

Talja [164]

Answer:

$900

Step-by-step explanation:

first you need to find the unit rate by dividing 270 by 3, which the answer would be 90. now we have $90. now we need to find the amount for 10 people, and we already have the unit rate. with the 90 dollars, we multiply it by 10. your final answer would but $900 for 10 people. hope this helps!

5 0

3 years ago

Read 2 more answers

Help pls ! Will mark brainliest

dedylja [7]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

In a recent national football league season tom brady philip rivers and aaron rodgers throw a total of 94 touchdown passes if we

koban [17]

Answer:

88 is the answer to the question

6 0

2 years ago

Helpppp!!!!1

Rzqust [24]

Answer:

$7.76\times 10^6\ \text{inches}$

Step-by-step explanation:

We know that,

$1\ \text{inch}=1.578 \times 10^{-5}\ \text{miles}$

We need to convert 1225 miles to inches. It can be done as follows :

$1\ \text{mile}=\dfrac{1}{1.578 \times 10^{-5}}\ \text{inches}\\\\1225\ \text{miles}=\dfrac{1225}{1.578 \times 10^{-5}}\ \text{inches}\\\\=7.76\times 10^6\ \text{inches}$

So, there are $7.76\times 10^6\ \text{inches}$ in 1225 miles.

3 0

3 years ago