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3 years ago

What is the area, in square centimeters, of the shape below? Express your answer as a fraction in simplest form.

Mathematics

1 answer:

emmainna [20.7K]3 years ago

7 0

Answer: (2/5) x (3/2) x .5 = 3/10 or .3

Step-by-step explanation: Area of a triangle is (1/2)bh . You substitute your answers and simplify.

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What is 3/10 - 1/2?

Galina-37 [17]

Answer:

-1/5

Step-by-step explanation:

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3 years ago

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Solve ( x− 4)^2 = 9.

Marysya12 [62]

Answer:

= 7

Step-by-step explanation:

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3 years ago

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Find ML, JK=3x+11, ML=10x-12, NP=45

tigry1 [53]

Answer:

$ML = 58$

Step-by-step explanation:

Given

$JK=3x+11, ML=10x-12, NP=45$

See attachment

Required

Length ML

First, calculate x using the following equivalent ratios

$JK : NP = NP : ML$

Express as fraction

$\frac{JK }{ NP} = \frac{NP }{ ML}$

Cross Multiply

$JK * ML = NP * NP$

Substitute values:

$(3x +11) * (10x - 12) = 45 * 45$

Expand

$30x^2 - 36x + 110x - 132 = 2025$

$30x^2 +74x - 132 = 2025$

Collect like terms

$30x^2 +74x - 132 - 2025=0$

$30x^2 +74x -2157=0$

Using a calculator:

$x \approx -10$ and $x \approx 7$

Given that:

$ML=10x-12$

Substitute values for x

$ML=10*-10-12 = -100 - 12 = -112$

$ML=10*7-12 = 70 - 12 = 58$

ML cannot be negative; So:

$ML = 58$

5 0

3 years ago

Help I am confused this does not come back to me when ever I look in my book.

KIM [24]

We know that point M is a midpoint of segment RS, and line l passes through segment RS. Since l passes through RS at its midpoint, M, then we can declare that l is the bisector of RS. Your best answer is A since the above is the basic definition of a bisector.

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4 years ago

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Find the sum (the total measure) of the interior angles of a 17 sided polygon??

Lunna [17]

The formula in finding the sum or the total measure of the interior angles of polygon having n sides is:

Sum of interior angles = (n – 2) 180

Where n = number of sides of the polygon

In this problem, you are asked for the sum of the interior angles of a 17 sided polygon. You have to substitute the number of sides to the formula:

Sum of interior angles = (17 – 2) 180

Sum of interior angles = (15) 180

Sum of interior angles = 2,700 degrees