2 years ago

What is the slope of the line that passes through (2, -3) and (9. -7)? Fractions must be in simplest form.

Mathematics

1 answer:

Gennadij [26K]2 years ago

3 0

Answer:

-4/7

Step-by-step explanation:

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(4,4).........................

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2 years ago

F(x)= x squared + 6x + 8

defon

Answer: (x+4) (x+2)

Step-by-step explanation:

x^2 + 2x + 4x +8

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2 years ago

Which of the following statements are true? Select all that apply

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3 years ago

An isosceles triangle’s altitude will bisect its base. Which expression could be used to find the area of the isosceles triangle

omeli [17]

Answer:

$\dfrac{\sqrt{40}\cdot \sqrt{40}}{2}$

Step-by-step explanation:

The length of the base is the distance between the points 4+2i and 10+4i, so

$\text{Base}=|10+4i-(4+2i)|=|10+4i-4-2i|=|6+2i|=\sqrt{6^2+2^2}=\\ \\=\sqrt{36+4}=\sqrt{40}$

The middle point of the base is placed at point

$\dfrac{4+2i+10+4i}{2}=\dfrac{6i+14}{2}=7+3i$

The length of the height is the distance between the points 5+9i and 7+3i

$\text{Height}=|5+9i-(7+3i)|=|5+9i-7-3i|=|-2+6i|=\sqrt{(-2)^2+6^2}=\\ \\=\sqrt{4+36}=\sqrt{40}$

So, the area of the triangle is

$A=\dfrac{1}{2}\cdot \text{Base}\cdot \text{Height}=\dfrac{\sqrt{40}\cdot \sqrt{40}}{2}$

4 0

2 years ago

You are spreading fertilizer on a golf course at the rate of 40 pounds per 10,000 square feet. If the course is 320 acres, how m

NemiM [27]

1 Acre = 43560 square feet
1 Ton = 2000 pounds

320 Acres = 320 * 43560 square feet = 13939200 = <span>1393.92 * 10,000

</span>1393.92 *40 pounds needed = 55756.8
55756.8 / 2000= <span>27.8784 </span>

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2 years ago

Read 2 more answers