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2 years ago

HHHHHHEEEEEEEELLLLLLLLLLLLLLLLPPPPPPPPPPPPPP MMMMMMMMMMMMMMMEEEEEEEEEEEEEEEEE WILL GIVE BRAINLESSS

Mathematics

2 answers:

andrey2020 [161]2 years ago

4 0

C- the x-coordinate is negative, and the y-coordinate is negative

Gelneren [198K]2 years ago

3 0

Answer: B. The x-Coordinate is Positive and the Y- Coordinate is Negative

Step-by-step explanation: Get a Coordinate Plane Picture with the Coordinates labeled for reference.

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What is the slope of 3,4 and 0.5

tekilochka [14]

Answer:

(3,-1)

Step-by-step explanation:

3-0=3

4-5=-1

(3,-1)

4 0

2 years ago

When a number, half of the number, and a third of the number are added together, the

Finger [1]

Step-by-step explanation:

Let the number be x.

Half of a number is x/2 and a third of the number is x/3

ATQ,

$x+\dfrac{x}{2}+\dfrac{x}{3}=275\\\\\dfrac{6x+3x+2x}{6}=275\\\\\dfrac{11x}{6}=275\\\\x=\dfrac{275\times 6}{11}\\\\x=150$

Frist no is 150

Second no is 150/2 = 75

Third no is 50

8 0

3 years ago

The height of a triangle is 5 cm shorter than its base. If the area of the triangle is 25 cm2, find the height of the triangle.

Olin [163]

Answer:

$h = 5\ cm$

Step-by-step explanation:

Let's call B at the base of the triangle and call h at the height of the triangle. Then we know that:

The height of a triangle is 5 cm shorter than its base. This means that:

$h = B-5$ .

The area of the triangle is 25 cm²

By definition the area of a triangle is:

$A = 0.5Bh$

For this triangle we know that $A = 25\ cm^2$ and $h = B-5$ . We substitute these values in the equation and solve for B.

$25 = 0.5B (B-5)$

$0.5B ^ 2-\frac{5}{2}B-25 = 0$

Now we use the quadratic formula to solve the equation.

For an equation of the form $ax ^ 2 + bx + c = 0$ the quadratic formula is:

$B=\frac{-b\±\sqrt{b^2-4ac}}{2a}$

In this case note that: $a=0.5,\ \ b=-\frac{5}{2}\ \ c=-25$

Then:

$B=\frac{-(-\frac{5}{2})\±\sqrt{(-\frac{5}{2})^2-4(0.5)(-25)}}{2(0.5)}$

$B=\frac{\frac{5}{2}\±\sqrt{\frac{25}{4}+50}}{1}$

$B=\frac{5}{2}\±\frac{15}{2}$

The solutions are:

$B_1=\frac{5}{2}+\frac{15}{2}=10$

$B_2=\frac{5}{2}-\frac{15}{2}=-5$

For this problem we take the positive solution.

$B=10\ cm$

Now we substitute the value of B in the equation to find the height h

$h = 10-5$

$h = 5\ cm$

6 0

3 years ago

Help me with this problem please.

Ganezh [65]

Answer:

I believe its 7?

Step-by-step explanation:

sorry if this is wrong

8 0

2 years ago

Read 2 more answers

Simplify the rational expression<br> x^2-25÷x^2+x-6 × x+3÷×-5

aliina [53]

Answer:

x - 6

—————

x + 5

Step-by-step explanation:

4 0

3 years ago