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4 years ago

HELP needed PLZ! Will choose brainliest! (:

Mathematics

1 answer:

Nadya [2.5K]4 years ago

8 0

Answer:

The answer to your question is: Yes, 2x + 1 is a factor of the polynomial

Step-by-step explanation:

See the picture please

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What is the solution to the system of equations below? y=2/5x-3 and x = –10

Andru [333]

The solution to the system of equations $y=\frac{2}{5}x-3\,\,and\,\,x=-10$ is (-10,-7)

Option 1 is correct.

Step-by-step explanation:

We need to find the solution to the system of equations below.

$y=\frac{2}{5}x-3\,\,and\,\,x=-10$

The value of x i s x=-10

Putting value of x in first equation we can find value of y

$y=\frac{2}{5}x-3\\y=\frac{2}{5}*-10-3\\y=2*-2-3\\y=-4-3\\y=-7$

So, value of y is y=-7

The solution to the system of equations $y=\frac{2}{5}x-3\,\,and\,\,x=-10$ is (-10,-7)

Option 1 is correct.

Keywords: System of equations

Learn more about system of equations at:

#learnwithBrainly

5 0

3 years ago

Read 2 more answers

Can someone assist me on this problem please!

Pani-rosa [81]

Answer:

${9}^{9}$

Step-by-step explanation:

$( {9}^{ - 3} )( {9}^{12} ) \\ \\ \\ (\frac{1}{ {9}^{3} } )( {9}^{12} ) \\ \\ = {9}^{9}$

I hope I helped you^_^

7 0

3 years ago

A grocery store bought some mangoes at a rate of 5 for a dollar. They were separated into two stacks, one of which was sold at a

Alexus [3.1K]

Answer:

The ratio of the number of mangoes in the $3 stack to those in the $6 stack is 1 : 2

Step-by-step explanation:

Let the number of mangoes bought by the grocery store be n. Also let the number of mango sold for $3 in one stack be x and the number of mango sold for $6 in the second stack be y.

Therefore:

x + y = z (1)

Also, the mangoes was sold at break even price, that is the cost of the mango and the price it was sold for was the same. Therefore:

Cost of buying = Price it was sold for

The cost of the mango = 5z and the price it was sold for = 3x + 6y

3x + 6y = 5z (2)

Substituting z = x + y in equation 1

3x + 6y = 5(x + y)

3x + 6y = 5x + 5y

6y - 5y = 5x - 3x

y = 2x

x / y = 1/ 2 = 1 : 2

The ratio of the number of mangoes in the $3 stack to those in the $6 stack is 1 : 2

8 0

3 years ago

Solve the problem.

skad [1K]

Answer:

The population reaches 42,336 fish in 2258

Step-by-step explanation:

Given:

$P = 0.62x^2 - 0.043x + 3$

To Find:

Time taken to reach 42,336 = ?

Solution:

According to the question x is the number of years after which the population .

Then

$42336 = 0.62x^2 - 0.043x + 3$

$0 = 0.62x^2 - 0.043x + 3- 42333$

$0.62x^2 - 0.043x -42333$ = 0

Solving using quadratic formula

$x =\frac{ -b\pm \sqrt{b^2 -4ac}}{2a}$

$x =\frac{ -(-0.043)\pm \sqrt{(-0.043) -4(0.62)(42333)}}{2(42333)}$

$x =\frac{ -(-0.043)\pm \sqrt{(0.001849) -0.10664}}{84666}$

x=261.337 x=−261.268

Neglecting the negative value we get

x = 261.337

x = 261 approx

261 years after 1997 = 2258

5 0

4 years ago

As a person cycling increases speed, the rate of calorie burned, distance traveled, and energy expended also increase. Which of

ella [17]

Answer:

c because the distance is important

7 0

3 years ago