3 years ago

LOIHal y LU LIC LOIVCI SC VILHC ISUSLCICS langic TCUICHT

Mathematics

1 answer:

vlada-n [284]3 years ago

5 0

Answer:

straight angle

Step-by-step explanation:

A<em> straight angle</em> is one whose measure is 180°. Its formative rays point in opposite directions from the vertex and make a straight line.

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A pipe is leaking at 1.5 cups per day. About how many gallons per week is the pipe leaking? (Hint: 1 gallon = 16 cups)

Vesnalui [34]

Answer:

.65625 gallons a week

Step-by-step explanation:

1.5 x 7=10.5

10.5/16= .65625

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2 years ago

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Simplfiy the expression -5+i/2i

Elodia [21]

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the question is in the picture below, if you could show all your work so i can see how to do it, that would be appreciated.

ki77a [65]

m∠R = 27.03°

Solution:

Given In ΔQRP, p = 28 km, q = 17 km, r = 15 km

To find the measure of angle R:

Law of cosine formula for ΔQRP:

$r^{2}=p^{2}+q^{2}-2 pq \cos R$

Substitute the given values in the above formula.

$(15)^{2}=(28)^{2}+(17)^{2}-2 (28)(17) \cos R$

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$225=1073-952 \cos R$

Switch the given equation.

$1073-952 \cos R=225$

Subtract 1073 from both side of the equation.

$-952 \cos R=-848$

Divide by –952 on both sides.

$$ \cos R=\frac{106}{119}$

$$ R=\cos^{-1} \left(\frac{106}{119}\right)$

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Hence m∠R = 27.03°.

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3 years ago

Solve the inequality –8 < x – 14.

Ilya [14]

Answer:

x=6

Step-by-step explanation:

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Levart [38]

Answer:

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Step-by-step explanation:

Create this equation into a y=mx+b form

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---- --- --- divide by -3 to leave y by itself

-3 -3 -3

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--- x-8

y intercept is -8

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2 years ago

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