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Tems11 [23]
3 years ago
7

Solve for n. 2/3(1 + n) = - 1/2n

Mathematics
1 answer:
alexandr1967 [171]3 years ago
8 0

Answer:

⅔+⅔n=-½

6×⅔+6×⅔n=6×-½

2×2+2×2n=-3

4+4n=-3

4n=-3-4

4n=-7

n=-7/4

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Help will give 20 points!
podryga [215]

Answer: What do you need help with?

Step-by-step explanation: I can help with anything.

6 0
3 years ago
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You plant a rectangular rose garden along the side of your garage. You enclose 3 sides of the garden with 40 feet of fencing. Th
solmaris [256]

Let's assume

length of rectangle =L

width of rectangle =W

You enclose 3 sides of the garden with 40 feet of fencing

so, we get

L+2W=40

now, we can solve for L

L=40-2W

we know that

area of rectangle is

A=L*W

100=L*W

now, we can plug

100=(40-2W)*W

now, we can solve for W

-2W^2+40W-100=0

we can use quadratic formula

W=\frac{-40+\sqrt{40^2-4\left(-2\right)\left(-100\right)}}{2\left(-2\right)}

W=\frac{-40-\sqrt{40^2-4\left(-2\right)\left(-100\right)}}{2\left(-2\right)}

we can take anyone value ..because both are giving positive value

first dimensions:

W=2.929

now, we can find L

L=40-2*2.929

L=34.142

so, length is 34.142feet

width is 2.929 feet

Second dimensions:

W=17.071

now, we can find L

L=40-2*17.071

L=5.858

so, length is 5.858feet

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6 0
3 years ago
The range of the function f(x) = x + 5 is {7, 9}. What is the function’s domain?
mina [271]
** x + 5 = 7 x = 2 ** x + 5 = 9 x = 4 {2,4}
4 0
3 years ago
HELP PLEASE ASAP
olga2289 [7]

Answer: a) degree and sign

b) end behavior: left side → +∞, right side → -∞

c) x-intercepts: x = -1.3, 0.3, 1.0

<u>Step-by-step explanation:</u>

end behavior can be determined by two things:

1) the degree of the polynomial:

  • if the degree is an even number, then the end behavior will be the same for both the left and right sides.
  • if the degree is an odd number, then the end behavior will be different for both the left and right sides.

2) the sign of the leading coefficient:

  • If the leading coefficient is positive, then the end behavior of the right side goes to positive infinity
  • If the leading coefficient is negative, then the end behavior of the right side goes to negative infinity

W(x) = -5x³ + 7x - 2

Degree: 3 (odd)

Leading Coefficient: negative

So, end behavior is: right side goes to negative infinity, right side goes to positive infinity.


See attachment for x-intercepts. <em>I set the x-axis to represent tenths </em>

5 0
3 years ago
Select all the solutions to <br> ( x - 2) to the power of 2 = -16
leonid [27]
The answer are both:
x=2+4i,2-4i
4 0
3 years ago
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