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3 years ago

Please help me with a problem of Derive the Formula for Area of a Triangle

Mathematics

1 answer:

ss7ja [257]3 years ago

4 0

You can use
$\frac{1}{2} ab \sin(c)$
Since it is an irregular triangle.
C refers to the angle and a & b refer to the adjacent sides.

So,
$\frac{1}{2} \times4.3 \times 3.8 \sin(53) \\ = 6.52485211 \\ = 6.52$

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What is 8 time the square root of 6

Helen [10]

Answer:

19.5959179423 or when simplified, 19.6

Step-by-step explanation:

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3 years ago

Write an equation of the line and interpret the slope.

coldgirl [10]

Answer:

y=-100x+700

Step-by-step explanation:

Slope=Rise/Run=Δy/Δx=(y₂-y1)/(x₂-x₁)=(200-600)/(5-1)=(-400)/(4)=-100

So your slope would be m=-100

To find b, the y-intercept, we plug in a given output of y for a given input of x and solve for b:

y=mx+b (Slope-intercept form)

y=-100x+b (Equation so far)

200=-100(5)+b [Plugging in (5,200)]

200=-500+b

700=b

So since the y-intercept is b=700, then the equation of the line is y=-100x+700

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2 years ago

Wha is 3/8×5/6 you will need a paper.

icang [17]

3/8 x 5/6 = 15/48 = 5/16

4 0

2 years ago

Read 2 more answers

What is the 15th term of the sequence A(n) = -3n+50 ?

Lady bird [3.3K]

Answer:

hjjbvf for niinvolppllpp

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3 years ago

Find the quadratic function that fits the following data. which one function fits.

Oksana_A [137]

Answer:

Step-by-step explanation:

The general rule for the quadratic function is

$y=ax^2+bx+c$

Use the data from the table:

$y(50)=130\Rightarrow 130=a\cdot 50^2+b\cdot 50+c\\ \\y(70)=130\Rightarrow 130=a\cdot 70^2+b\cdot 70+c\\ \\y(90)=200\Rightarrow 200=a\cdot 90^2+b\cdot 90+c$

We get the system of three equations:

$\left\{\begin{array}{l}2500a+50b+c=130\\ \\4900a+70b+c=130\\ \\8100a+90b+c=200\end{array}\right.$

Subtract these equations:

$\left\{\begin{array}{l}4900a+70b+c-2500a-50b-c=130-130\\ \\8100a+90b+c-2500a-50b-c=200-130\end{array}\right.\Rightarrow \left\{\begin{array}{l}2400a+20b=0\\ \\5600a+40b=70\end{array}\right.$