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4 years ago

I’m really confused on this problem. I nee

Mathematics

2 answers:

Marat540 [252]4 years ago

7 0

$2x + ( - 2x - 6) = 5 \\ - 6 = 5 \\$
No solution

Alinara [238K]4 years ago

7 0

Y= -2x-6
2x+y=5 so then y= -2x+5

If you look at those two equations and ask yourself when is
y = a number-6 and in the same time
y = same number +5
The answer is never, so the system of equations has no solutions

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When one patient with a common cold takes a medicine and the other patient does not take any medicine the person who takes medic

Kobotan [32]

What options can you choose from? I guess it would be something like the medicine works or the medicine is not a placebo

4 0

4 years ago

Read 2 more answers

What is the slope of the line that goes through the points (2,-1) and (6,1)

drek231 [11]

Answer: The slope is $\frac{1}{2}$ .

Step-by-step explanation:

1. You set up your Slope Formula $M=\frac{y2-y1}{x2-x1}$ .

2. Substitue your points into the formula. $M=\frac{1--1}{6-2}$ .

3. Once you substitute, you will solve the equation $M=\frac{2}{4}$ .

4. Simplify the equation if you have to $M=\frac{1}{2\\}$ .

7 0

3 years ago

. The psychology club is having a self-proclaimed psychic come to their campus fund-raising event to demonstrate his abilities.

ElenaW [278]

Answer:

the club looses 12.50$

Step-by-step explanation:

125 tickets * 1.50$ per ticket

125 * 1.50 = 187.5 earned

200$ fee for psychic - 187.5$ earned

200 - 187.5 = 12.5

the club will lose 12.50$

(this psychic seems like a bit of a scam lol)

3 0

4 years ago

A kite descends to the ground from a height of 32 feet. Use an integer to describe the descent.

nydimaria [60]

32-x=0; with x equaling the amount descended or -32.

8 0

3 years ago

an isosceles triangle has congruent sides of 20cm. the base is 10cm. find the height of the triangle.

dolphi86 [110]

Answer:

$\large\boxed{A_\triangle=25\sqrt{15}\ cm^2}$

Step-by-step explanation:

Look at the picture.

The formula of an area of a triangle:

$A_\triangle=\dfrac{bh}{2}$

b - base

h - height

We need a length of a height.

Use the Pythagorean theorem:

$leg^2+leg^2=hypotenuse^2$

We have:

$leg=5,\ leg=h,\ hypotenuse=20$

Substitute:

$5^2+h^2=20^2$

$25+h^2=400$ subtract 25 from both sides

$h^2=375\to h=\sqrt{375}\\\\h=\sqrt{(25)(15)}\\\\h=\sqrt{25}\cdot\sqrt{15}\\\\h=5\sqrt{15}\ cm$

Calculate the area:

$A_\triangle=\dfrac{(10)(5\sqrt{15})}{2}=\dfrac{50\sqrt{15}}{2}=25\sqrt{15}\ cm^2$

8 0

3 years ago