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Aleonysh [2.5K]

3 years ago

13

Solve for x. 3x+2 = 8x-1

1 answer:

Flauer [41]3 years ago

6 0

So, your problem is ((3x+2))/4) = ((8x-1)/5)?

If so, X= 14/17

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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°.

7 0

3 years ago

The<br> of a plane is 2.

bonufazy [111]

Answer:

The seat no of a plane is 2

6 0

3 years ago

Scientists believe that every day the number of viruses that exist (x) will be multiplied by 6. Write an expression to express t

Rasek [7]

Answer:

X*6

Step-by-step explanation:

The virus (x) time 6

8 0

3 years ago

Find two consecutive whole numbers that square root 45 lies between

Wittaler [7]

Sqrt(45) is between sqrt(36)=6 and sqrt(49)=7.

Answer: between 6 and 7

6 0

3 years ago

46m+11-33m=-28 work and solve

harina [27]

46m - 33m = -28 - 11
13m = -39
m =-3

4 0

3 years ago

Read 2 more answers