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3 years ago

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What does 4(x + y) equal

1 answer:

valkas [14]3 years ago

8 0

$\text{Hey there!}$

$\text{What does 4(x + y) equal?}$

$\text{Use the distributive formula to solve this equation!}$

$\text{4(x) + 4(y)}$

$\text{4(x) = 4x}\\\text{4(y) = 4y}$

$\text{Which brings us to: 4x + 4y}$

$\boxed{\boxed{\text{\bf{Thus, your answer is: 4x + 4y}}}}\checkmark$

$\text{Good luck on your assignment and enjoy your day!}$

~ $\frak{LoveYourselfFirst:)}$

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Find the value of f(7). y = f(x)

kozerog [31]

Step-by-step explanation:

For x = 7 or y = f(7)

Graph and solution are in the picture below

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2 years ago

Aidan has $7565 in his checking account. He invests it in an account that earns 3.5% interest compounded continuously. What is t

Fudgin [204]

Total amount = Pe^(rt)
where
P=principal
e=2.7182818284...
r=0.035
t=3 (years)

Total amount
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2 years ago

K is the midpoint of JL JK=3x-1 and KL=2x+8 find JL

Masteriza [31]

Answer:

JL = 52

Step-by-step explanation:

It is given in the question that K is the midpoint of JL.

So, JK = KL ......... (1)

Now, given that, JK =3x - 1 and KL = 2x + 8

Therefore, from equation (1), we can write

3x - 1 = 2x + 8

⇒ x = 9

So, JK = 3x - 1 = 3(9) -1 = 26 and KL = 2x + 8 = 2(9) + 8 = 26

Hence, JL = JK + KL = 26 + 26 = 52. (Answer)

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2 years ago

Pleasantburg has a population growth model of P(t)=at2+bt+P0 where P0 is the initial population. Suppose that the future populat

yulyashka [42]

Answer:

The population will reach 34,200 in February of 2146.

Step-by-step explanation:

Population in t years after 2012 is given by:

$P(t) = 0.8t^{2} + 6t + 19000$

In what month and year will the population reach 34,200?

We have to find t for which P(t) = 34200. So

$P(t) = 0.8t^{2} + 6t + 19000$

$0.8t^{2} + 6t + 19000 = 34200$

$0.8t^{2} + 6t - 15200 = 0$

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this question:

$0.8t^{2} + 6t - 15200 = 0$

So $a = 0.8, b = 6, c = -15200$

Then

$\bigtriangleup = 6^{2} - 4*0.8*(-15100) = 48356$

$t_{1} = \frac{-6 + \sqrt{48356}}{2*0.8} = 134.14$

$t_{2} = \frac{-6 - \sqrt{48356}}{2*0.8} = -141.64$

We only take the positive value.

134 years after 2012.

.14 of an year is 0.14*365 = 51.1. The 51st day of a year happens in February.

So the population will reach 34,200 in February of 2146.

6 0

2 years ago

Which expression has the same value as the one below ?<br><br> 50 + (-17)

irina [24]

Answer:

=33

Step-by-step explanation:

8 0

2 years ago