3 years ago

Suppose a triangle with the vertices A(-7, -8), B (-4,6)

Mathematics

1 answer:

Leni [432]3 years ago

3 0

Answer:

Step-by-step explanation:

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What is the midpoint of the segment shown below (3,7) (2,-1)

disa [49]

Answer:

( $\frac{5}{2}$ , 3)

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3 years ago

A rectangular parking lot must have a perimeter of 440 feet and an area of at least 8000 square feet. Describe the possible leng

tangare [24]

Answer:

The possible parking lengths are 45.96 feet and 174.031 feet

Step-by-step explanation:

Let x be the length of rectangular plot and y be the breadth of rectangular plot

A rectangular parking lot must have a perimeter of 440 feet

Perimeter of rectangular plot =2(l+b)=2(x+y)=440

2(x+y)=440

x+y=220

y=220-x

We are also given that an area of at least 8000 square feet.

So, $xy \leq 8000$

So, $x(220-x) \leq 8000$

$220x-x^2 \leq 8000$

So, $220x-x^2 = 8000\\-x^2+220x-8000=0$

General quadratic equation : $ax^2+bx+c=0$

Formula : $x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}$

$x=\frac{-220 \pm \sqrt{220^2-4(-1)(-8000)}}{2(-1)}\\x=\frac{-220 + \sqrt{220^2-4(-1)(-8000)}}{2(-1)} , \frac{-220 - \sqrt{220^2-4(-1)(-8000)}}{2(-1)}\\x=45.96,174.031$

So, The possible parking lengths are 45.96 feet and 174.031 feet

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3 years ago

URGENT. PLEASE HELP WITH PROBLEM WITH EXPLANATION!!!

salantis [7]

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Type SSS, SAS, ASA, SAA, or HL to<br> describe these triangles.

Viktor [21]

Answer:

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Step-by-step explanation:

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Find the surface area of the triangular prism. The base of the prism is an isosceles triangle. 25 points!!!!!

MissTica

I believe that this is the right answer 7056 cm 3

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3 years ago