All categories

3 years ago

NEED URGENT HELP 50 POINTS MATH EQUATION PLEASE NO POINT STEAL!

Mathematics

2 answers:

Degger [83]3 years ago

6 0

Answer:

2 is the number of dollars per seed.

6 is the number of lettuce seeds bought.

7 is the number of pea seeds bought.

word expression: two dollars multiplied by six plus seven packets of seeds.

Anna007 [38]3 years ago

5 0

Answer:

2 is the number of dollars per seed.

6 is the number of lettuce seeds bought.

7 is the number of pea seeds bought.

Step-by-step explanation:

Two dollars multiplied by six plus seven packets of seeds.

You might be interested in

Which of the following is an extraneous solution of StartRoot negative 3 x minus 2 EndRoot = x + 2? x = –6 x = –1 x = 1 x = 6

tester [92]

The extraneous solution is x=-1 and x=-6

Step-by-step explanation:

Given the question as;

$\sqrt{-3x-2} =x+2$

Eliminate the root in the left hand side

$(\sqrt{-3x-2}) =x+2\\\\\\(\sqrt{-3x-2} )^2=(x+2)^2\\\\-3x-2=x^2+4x+4\\\\0=x^2+4x+3x+4+2\\\\\\0=x^2+7x+6$

solve the quadratic equation by factorization

Find multiples of 6 that add up to 7-------- 1*6

Rewrite the equation as;

x²+7x+6=0

x²+6x+x+6=0

x(x+6) +1 (x+6) =0

(x+1)(x+6) =0

x+1=0

x=-1

x+6=0

x=-6

The roots are, x=-1, and x=-6

Learn More

Quadratic equations : brainly.com/question/1332667

Keywords : extraneous, solution

#LearnwithBrainly

5 0

3 years ago

Read 2 more answers

The weight of male american between the ages 18 to 25 is normally distributed, with mean of 162.7 lb and a standard deviation of

MArishka [77]

Answer:

218.7 lb.

Step-by-step explanation:

We have been given that the weight of male american between the ages 18 to 25 is normally distributed, with mean of 162.7 lb and a standard deviation of 28 lb.

One definition of obesity states that a person is obese if the z-score of his or her weight is greater than 2.

We will use z-score formula to solve our given problem.

$z=\frac{x-\mu}{\sigma}$ , where,

$z=\text{ z-score}$ ,

$x=\text{ Random sample-score}$ ,

$\mu=\text{ Mean}$ ,

$\sigma=\text{ Standard deviation}$ .

Upon substituting our given values in z-score formula we will get,

$2=\frac{x-162.7}{28}$

Now let us solve for x.

Upon multiplying both sides of our equation by 28 we will get,

$2*28=\frac{x-162.7}{28}*28$

$56=x-162.7$

Let us add 162.7 to both sides of our equation.

$56+162.7=x-162.7+162.7$

$218.7=x$

Therefore, the obesity threshold weight for a young adult American male is 218.7 pounds.

6 0

3 years ago

Read 2 more answers

1,298.713832<br>+2.475,147,963

ddd [48]

Answer:

1412.188832

Step-by-step explanation:

6 0

3 years ago

What is the value of x in the equation<br> 3x - y = 30, when y = 15?

Daniel [21]

Answer:

x = 15

Step-by-step explanation:

3x - y = 30

Given;

y = 15

To find;

value of 'x'

Putting the value of y in the given equation;

3x - 15 = 30

3x = 30 + 15

3x = 45

x = 45/3

x = 15

7 0

3 years ago

Read 2 more answers

An ellipse is represented by the equation <img src="https://tex.z-dn.net/?f=%5Cfrac%7B%28y-3%29%5E%7B2%7D%20%7D%7B169%20%7D%20%2

padilas [110]

Answer:

C. horizontal line that is 33.8 units

Step-by-step explanation:

We assume your equation should be ...

$\dfrac{(y-3)^2}{169}+\dfrac{(x+6)^2}{144}=1$

The largest denominator in this standard-form equation of an ellipse is under the y-term, so the major axis is vertical. The directrix will be a horizontal line.

The distance from the center to the directrix is always longer than the semi-major axis, so will be more than √169 = 13. This only leaves choice C.

If "c" is the center-to-focus distance, it will be the root of the difference of the denominators in the equation:

c = √(169 -144) = 5

For semi-major axis "a", the distance from the center to the directrix is ...

a²/c = (13²)/5 = 33.8 . . . . . matches choice C

5 0

3 years ago