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3 years ago

A=1/2(b1+b2)h What are equivalent equations

Mathematics

1 answer:

Dimas [21]3 years ago

5 0

Answer:

b1 + b2

A = ------------- * h

Step-by-step explanation:

What you have here is fine as is, except that the "1/2" should be enclosed in parentheses:

A = (1/2)(b1 + b2)h.

Alternatively, write:

b1 + b2

A = ------------- * h

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Use the Law of Sines to find the measure of angle J to the nearest degree.

rjkz [21]

$\bf \textit{Law of sines}
\\ \quad \\
\cfrac{sin(\measuredangle A)}{a}=\cfrac{sin(\measuredangle B)}{b}=\cfrac{sin(\measuredangle C)}{c}\\\\
-----------------------------\\\\
\cfrac{sin(J)}{9.1}=\cfrac{sin(97^o)}{11}\implies sin(J)=\cfrac{9.1\cdot sin(97^o)}{11}
\\\\\\
\textit{now taking }sin^{-1}\textit{ to both sides}
\\\\\\
sin^{-1}\left[ sin(J) \right]=sin^{-1}\left( \cfrac{9.1\cdot sin(97^o)}{11} \right)
\\\\\\
\measuredangle J=sin^{-1}\left( \cfrac{9.1\cdot sin(97^o)}{11} \right)$

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4 years ago

What is the equation of a line through the points (0.9) and (3, 0)?

Ratling [72]

Answer:

Step-by-step explanation:

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3 years ago

Find constants b and c in the polynomial p (x )equals x squared plus bx plus cp(x)=x2+bx+c such that ModifyingBelow lim With x r

andrezito [222]

Answer:

b=2

c=-24.01

Step-by-step explanation:

If I understood your question right you need to find the constants b and c in the polynomial:

$p(x)=x^2+bx+c$

such that:

$\lim_{x\to4} \frac{x^2+bx+c}{x-4}$

In order to get a system of two equations you can find limes when x goes to 4 from the right side or from the left side.

I solved this using a number that is close to 4. When it goes from right I used 4.1 and from left 3.9. This way you get two equations:

$16.81+4.1b+c=1\\15.21+3.9b+c=-1$

When you solve the system you get the answers above.

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3 years ago

The map below shows the path that Jin walked this morning. According to his pedometer, the total distance of this path was 2.3 k

max2010maxim [7]

Answer:

5 centimetres = 1 kilometre

Step-by-step explanation:

First add up the distances measured on the map.

1.1+4.8+2.2+3.4=11.5 cm

Based on this, since the number of cm is greater than the number of km, we can figure out that each cm should not be multiplied to get the km, so we can eliminate the first two answers.

Next write an equation to represent finding the scale

x=scale

11.5=2.3x

Now solve for the scale

11.5/2.3=2.3x/2.3

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Therefore the scale is 5 centimetres = 1 kilometre

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3 years ago

If point Q is translated 4 units to the right and 2 units up, what are the coordinates of Q'?

gavmur [86]

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3 years ago