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2 years ago

15

Please read the attached Newsela article, "Pets can make people feel happier and healthier" and complete the attached Double Ent

ry Literature form.

1 answer:

rosijanka [135]2 years ago

7 0

Answer:

this isnt math

Step-by-step explanation:

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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.

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

$225=784+289-952 \cos R$

$225=1073-952 \cos R$

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)$

$R=27.03^\circ$

Hence m∠R = 27.03°.

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Marco can swim at a speed of 45

diamong [38]

I hope this helps you

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2 years ago

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Ivan

Answer:

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Step-by-step explanation:

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2 years ago

On a coordinate graph,which of the following is true of Quadrant 3?

Nonamiya [84]

D. The x and y values are both negative

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2 years ago

How do you solve the problem for this equation? 3+5x=3

Mazyrski [523]

Answer:

x=0

Step-by-step explanation:

3+5(0)=3

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2 years ago

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