All categories

3 years ago

Solve the system by graphing. y = x=1 y=4x+7 The solution is ( _ , _ )

Mathematics

1 answer:

lorasvet [3.4K]3 years ago

5 0

4x+7= x+1
3x+7=1
3x= -6
x= -2
(-2)+1 = -1
y= -1
(-2, -1)

You might be interested in

The profit when selling 'x' pairs of shoes is P(x)=-4x^2+32x-39. How many pairs of shoes should be sold in order to maximize the

julia-pushkina [17]

Answer:

Step-by-step explanation:

The profit for selling x pairs of shoes is given by:

$P(x)=-4x^2+32x-39$

And we want to determine the number of pairs that needs to be sold in order to maximize profit.

Since the function is a quadratic with a negative leading coefficient, the maximum profit will occur at its vertex point. The x-coordinate of the vertex of a quadratic is given by:

$\displaystyle x=-\frac{b}{2a}$

In this case, a = -4, b = 32, and c = -39. Substitute and evaluate:

$\displaystyle x=-\frac{(32)}{2(-4)}=\frac{32}{8}=4$

So, in order to maximize profit, only four pairs of sohoes should be sold.

Our answer is A.

5 0

3 years ago

In order to keep a boat from drifting away, the boat is tied to a pier with a 60-foot rope. When the boat drifts as far from the

Rus_ich [418]

The answer is C) hope this helped!

6 0

3 years ago

A type of plant is introduced into an ecosystem and quickly begins to take over. A scientist counts the number of plants after m

Mashcka [7]

Answer:

the answer is D.

Step-by-step explanation:

IF RIGHT PLZ MARK BRAINLIEST

3 0

4 years ago

Read 2 more answers

Katie solved the equation by completing the square. X2+12x−7=0 which equation shows one of the steps katie could have taken to c

sdas [7]

solution:

$x^{2}+12x-7=0\\add 7 to both side of the equation\\x^{2}-12x=7\\to creat a trinomial square on the left side of the equation.\\find a value that is equal to the square of b and the cofficent of x.\\(\frac{b}{2})^2=(-6)^2\\add the term to each side of the equation\\x^2-12x+(-6)^2=7+(-6)\\x^2-12x+36=43\\(x-6)^2=43\\solve the equation for x.\\$ $take the square root of each side of the equation to the set up the solution x,\\(x-6)^2.\frac{1}{2}=\pm \sqrt{43}\\x-6=\pm \sqrt{43}\\x=6\pm \sqrt{43}$

4 0

3 years ago

Read 2 more answers

Select the correct answer. Adam placed an order with an online clothing store. He ordered 5 shirts and 4 pairs of shoes, and he

ycow [4]

Answer: The answer is B.

Step-by-step explanation: Multiply $15 times 5 shirts, which equals $75. Now multiply $20 times 4 shoes, which equals $80. Now add the two products, and you get $155.

7 0

3 years ago